News Stories from Space Weather Prediction Center

The experimental review period for the two new products; the 3-Day Forecast and the Forecast Discussion, has concluded. Thank you to all who provided feedback.

Users can also subscribe to these products in the Product Subscription Service under the Forecasts and Summaries product category.

The experimental review period for the two new products; the 3-Day Forecast and the Forecast Discussion, has concluded. Thank you to all who provided feedback.

Users can also subscribe to these products in the Product Subscription Service under the Forecasts and Summaries product category.

Two new, experimental forecast products are now available, the 3-Day Forecast and the Forecast Discussion, both produced twice daily at 0030 and 1230 UTC. The 3-Day Forecast is a concise, one-page summary using NOAA Space Weather Scale terminology and the Forecast Discussion provides detailed information covering observations and forecast rationale tailored for the user requiring in-depth, scientific information.

These two products will supplement the existing product suite and no current products will be discontinued at this time.

More information can be found for each products at:

http://products.weather.gov/PDD/PDD-3Day.pdf
http://products.weather.gov/PDD/PDD-Dis.pdf

These products are available in the Data and Products section of the website at http://www.swpc.noaa.gov/ftpdir/latest/three_day_forecast.txt and http://www.swpc.noaa.gov/ftpdir/latest/forecast_discussion.txt, respectively. Users can also subscribe to these products in the Product Subscription Service under the Forecasts and Summaries product category.

Feedback on these products is welcomed through February 12th. Please submit feedback to: www.nws.noaa.gov/survey/nws-survey.php?code=3DSWF (3-Day Forecast) and www.nws.noaa.gov/survey/nws-survey.php?code=SWFD (Forecast Discussion).

These two products will supplement the existing product suite and no current products will be discontinued at this time.

Two new, experimental forecast products are now available, the 3-Day Forecastand the Forecast Discussion, both produced twice daily at 0030 and 1230 UTC. The 3-Day Forecastis a concise, one-page summary using NOAA Space Weather Scale terminology and the Forecast Discussionprovides detailed information covering observations and forecast rationale tailored for the user requiring in-depth, scientific information.

These two products will supplement the existing product suite and no current products will be discontinued at this time.

On December 11, SWPC will introduce two new forecast products titled the 3-Day Forecast and the Forecast Discussion. These new products will: be available twice a day at 0030 and 1230 UTC; provide space weather information in two separate formats, abbreviated and detailed; and use NOAA Space Weather Scale information. Examples of these new products are available to familiarize our users at http://www.swpc.noaa.gov/info/3-Day.pdf(the concise, 1-page summary) and http://www.swpc.noaa.gov/info/Discussion.pdf(the in-depth space weather analysis for the technical user). These two products will supplement the existing product suite and no current products will be discontinued.

On December 11 (tentative), SWPC will introduce two new forecast products titled the 3-Day Forecast and the Forecast Discussion. These new products will: be available twice a day at 0030 and 1230 UTC; provide space weather information in two separate formats, abbreviated and detailed; and use NOAA Space Weather Scale information. Examples of these new products are available to familiarize our users at http://www.swpc.noaa.gov/info/3-Day.pdf(the concise, 1-page summary) and http://www.swpc.noaa.gov/info/Discussion.pdf(the in-depth space weather analysis for the technical user). These two products will supplement the existing product suite and no current products will be discontinued.

The arrival of the first, smaller coronal mass ejection (CME) from earlier in the week has been observed but only low-level storming (below G1) occurred as a result. The second, more significant CME is still expected but is later in arriving than originally forecast. G1 (Minor) geomagnetic storming is still expected, but now likely through November 25th with the CME still yet to arrive. The region responsible for this activity, NOAA Region 1618, remains somewhat complex but has leveled off in growth. This Region still has the potential for some subsequent activity, so stay tuned for updates.

Product Updates: On December 11 (tentative), SWPC will introduce two new forecast products titled the 3-Day Forecast and the Forecast Discussion. These new products will: be available twice a day at 0030 and 1230 UTC; provide space weather information in two separate formats, abbreviated and detailed; and use NOAA Space Weather Scale information. Examples of these new products are available to familiarize our users at http://www.swpc.noaa.gov/info/3-Day.pdf(the concise, 1-page summary) and http://www.swpc.noaa.gov/info/Discussion.pdf(the in-depth space weather analysis for the technical user). These two products will supplement the existing product suite and no current products will be discontinued.

SWPC forecasters expect G1 (Minor) to G2 (Moderate) geomagnetic storming through November 24th. The primary Coronal Mass Ejection (CME) responsible for this storming was associated with a solar flare from NOAA Region 1618 that peaked at the R1 (Minor) level on November 21 at 1530 GMT (1030am EST). Stay tuned for updates.

SWPC forecasters expect G1 (Minor) to G2 (Moderate) geomagnetic storming beginning midday on November 23rd. The Coronal Mass Ejection (CME) was associated with a solar flare from NOAA Region 1618 that peaked at the R1 (Minor) level on November 21 at 1530 GMT (1030am EST). Region 1618 continues to grow and has potential to produce more activity in the coming days. Updates will be posted here as we learn more or follow us on Facebook.

A prolonged period of southward interplanetary magnetic field brought G2 (Moderate) Geomagnetic Storm conditions early on November 14 (UTC), evening hours November 13 (EST). This condition, in the wake of a CME passage, persisted overnight but has since shown signs of weakening. Stay tuned for updates.

A prolonged period of southward interplanetary magnetic field brought G2 (Moderate) Geomagnetic Storm conditions early on November 14 (UTC), evening hours November 13 (EST). This condition, in the wake of a CME passage, may persist for a few more hours. Check here for updates.

Region 1598, busy since appearing from around the limb just a few days ago, produced an impulsive, or short-lived, R3 (Strong) Solar Flare Radio Blackout at 0317 UTC on October 23^rd (11:17 pm Eastern on October 22^nd). Impulsive flares aren’t generally associated with severe space weather, and additionally, this region is still several days away from directly facing Earth from center disk. Nonetheless, the potential for continued activity remains, so stay tuned for updates as Region 1598 makes its way across the visible disk.

G1 (Minor) Geomagnetic Storm levels have been observed as the effects of a coronal hole high speed stream continue. R1(Minor) Radio Blackouts were also observed as a new active region rotates onto the visible disk. Stay tuned for updates.

Earth remains under the influence of an October 5^th coronal mass ejection (CME). G2 (Moderate) geomagnetic storm levels have been observed thus far and are still possible as this magnetic cloud continues to affect Earth. Stay tuned for updates.

Geomagnetic storming reaching the G2 (Moderate) level was observed overnight with the arrival of the October 5^th coronal mass ejection (CME). The strongest portion of this storm is likely over, but continued low-level storming is still possible throughout the day as Earth remains under the influence of this CME. Stay tuned for updates.

A single period of geomagnetic storming reaching the G3 (Strong) level was observed overnight. Since that time, geomagnetic activity has been on the decline as the CME influence has continued to weaken. No further significant activity is expected at this time but stay tuned for updates.

Earth remains under the influence of the coronal mass ejection (CME) associated with the filament eruption near end-of-day September 27^th. A single period of geomagnetic storming reaching the G3 (Strong) level has been observed, and continued storming is possible through October 1^st. Although this storm got off to a slow start, stronger magnetic structure ultimately came, leading to storm levels slightly higher than initially predicted. Stay tuned for updates.

Earth remains under the influence of the coronal mass ejection (CME) associated with the filament eruption near end-of-day September 27^th. Geomagnetic storm levels reaching the G2 (Moderate) level have been observed and are possible through October 1^st. Although this storm got off to a slow start, stronger magnetic structure ultimately came, leading to storm levels consistent with initial projections. Stay tuned for updates.

The Earth-directed coronal mass ejection (CME) associated with the filament eruption near end-of-day September 27^th has arrived. Geomagnetic storm levels reaching the G1 (Minor) level are possible on October 1^st as Earth remains under the influence of this CME. The full moon may make viewing the aurora more difficult, but high latitude aurora watchers should now be on the lookout. Stay tuned for updates.

The Earth-directed coronal mass ejection (CME) associated with the filament eruption near end-of-day September 27^th has arrived. Geomagnetic storm levels reaching the G2 (Moderate) level are possible through October 1^st as Earth remains under the influence of this CME. The full moon may make viewing the aurora more difficult, but high latitude aurora watchers should now be on the lookout. Stay tuned for updates.

A filament eruption near end-of-day September 27^th resulted in a brief S1 (Minor) radiation storm. The Earth-directed coronal mass ejection (CME) associated with this event is en route and is expected to affect Earth mid to late day on September 30^th (Eastern time), with storming continuing into the 1^st. Geomagnetic storm levels reaching the G2 (Moderate) level are possible for both days. The full moon may make viewing the aurora more difficult, but high latitude aurora watchers should be on the lookout during that time, nonetheless. Stay tuned for updates.

A small radiation storm reaching the S1 (Minor) level occurred overnight as a result of a long duration flare well below the R1 (Minor) threshold on the NOAA Space Weather Scales. There is an Earth-directed coronal mass ejection associated with this event, and initial analysis indicates likely arrival late Saturday night/early Sunday morning. Better estimates of arrival time and intensity will come as model data becomes available. Stay tuned for updates.

Geomagnetic storming reaching the G2 (Moderate) level continued overnight. The suspected driver was one of two coronal mass ejections observed on September 2. Additionally, solar radiation storm levels have largely returned to background levels, and although there are several sunspot groups on the visible disk, the risk for severe space weather remains relatively low at this time. Stay tuned for updates.

Geomagnetic storming reaching the G2 (Moderate) level continues at this time. The suspected driver is one of two coronal mass ejections observed on September 2. Additionally, solar radiation storm levels have largely returned to background levels, and although there are several sunspot groups on the visible disk, the risk for severe space weather remains relatively low at this time. Stay tuned for updates.

Isolated G2 (Moderate) geomagnetic storming continues as Earth remains under the influence of the coronal mass ejection associated with the August 31^st filament eruption. Although this event gave earlier signs of decline, continued structure in the passing cloud is leading to additional storming. Stay tuned for updates.

The G1 (minor) Geomagnetic Storm has ended with the return of normal solar wind conditions. Also, the S1 (minor) Solar Radiation Storm has also ended. Look for benign space weather in the near-term.

Low-level geomagnetic storming continues as the coronal mass ejection (CME) associated with the August 31^st filament eruption continues to affect Earth. The geomagnetic storm reached the G2 (Moderate) level on September 3rd, but only G1 (Minor) or lower levels of storming have been observed since that time. Solar radiation storm levels are below the S1 (Minor) event threshold and continue a slow decline toward background levels. Stay tuned for updates.

Low-level geomagnetic storming continues as the coronal mass ejection (CME) associated with the August 31^st filament eruption continues to affect Earth. The geomagnetic storm reached G2 (Moderate) levels earlier in the day, but has quieted since that time. Solar radiation storm levels continue to hover near the S1 (Minor) event threshold but continue a slow decline toward background levels. Stay tuned for updates.

G2 (Moderate) geomagnetic storming is ongoing now as a result of the coronal mass ejection (CME) arrival associated with the August 31^st filament eruption. Continued geomagnetic storming is expected in the near term as the CME continues to affect Earth. Solar radiation storm levels continue to hover near the S1 (Minor) event threshold but should continue their slow decline toward background levels. Stay tuned for updates.

Solar Radiation Storm levels have increased above the S1 (Minor) threshold in response to a filament eruption observed late on August 31^st. The solar flare/radio blackout associated with this event was below the R-scale event thresholds. Geomagnetic Storm levels are forecast to reach the G1 (Minor) level with a chance for G2 (Moderate) level activity on September 3^rd, with arrival of the coronal mass ejection expected early that day. Stay tuned for updates.

The problems with the email product delivery system regarding missing or delayed products have now been resolved. Testing has shown normal delivery of products at this time but users should report any ongoing issues to pss.help@noaa.gov.

SWPC is currently experiencing problems with the email product delivery system; users are reporting missing or delayed scheduled products. As part of testing, a geomagnetic storm warning product noting G3 or higher level storming expected was inadvertently issued and then canceled. Active troubleshooting is ongoing now and updates will be posted here, when available. The website itself is unaffected and will correctly display the current space weather conditions. No significant space weather is forecast at this time.

Activity has declined in the past 24 hours, as few flares have occurred. Forecasters are watching the northeast quadrant for a resurgence from NOAA Region 1548. Updates here.

Solar flare-generated Radio Blackouts (including an R2 (Moderate) at 9:02 p.m. EDT August 17 (0102 UTC August 18)) herald the arrival of a new active region at northeast limb. More flares and possibly CMEs are likely. Updates here as conditions develop.

Solar flare-generated Radio Blackouts (including an R2 (Moderate) at 9:02 p.m. EDT August 17 (0102 UTC August 18) herald the arrival of a new active region at northeast limb. More flares and possibly CMEs are likely. Updates here as conditions develop.

The S1 (minor) Solar Radiation Storm that began July 23, is still underway. It is likely to end in the next 24 hours. If conditions change, updates will be found here.

A CME and flare from well beyond west limb earlier today have caused an S1 (minor) Solar Radiation Storm. The protons began to increase at the GOES spacecraft around 0730 UTC (3:30 a.m. EDT) and are now just slightly above event threshold. Expectations are for the event to stay at S1 (minor) levels and slowly wane through the next 12-24 hours.

A weak shock driven by recent CME activity from now-departed Region 1520, passed ACE around 0415 UTC (00:15 a.m. EDT) today. However, it caused no geomagnetic storm activity. The S1 (minor) Solar Radiation Storm persists, but should steadily decline through the day. Elsewhere, no significant activity occurred. Updates here should things change.

Region 1520, now past west limb, continues to erupt. It produced an R2 (moderate) Radio Blackout and a CME earlier today. Although not clearly earth-directed, forecasters are analyzing it for tangential effects on the geomagnetic field. An S1 (minor) Solar Radiation Storm soon followed the eruption. Updates here.

After reaching the S2 (moderate) level briefly, the Solar Radiation Storm which began about 8 hours ago is now in decline. Should things change, updates will be found here.

An eruption from the bright region on west limb, including a long-duration R1 (minor) Radio Blackout, has spawned an S1(minor) Solar Radiation Storm. Updates as conditions progress.

An eruption from the bright region on west limb, including a long-duration R1 (minor) Radio Blackout, has spawned a S1(minor) Solar Radiation Storm. Updates as conditions progress.

The ongoing geomagnetic storm is finally showing signs of weakening. G2 (Moderate) levels were observed during the event, but recent periods have been below the G1 (Minor) level. No further significant activity has occured, and while Region 1520 has become less of a threat, it still has the potential for further activity. Stay tuned for updates.

G2 (Moderate) Geomagnetic Storm activity is now occurring as a result of the ongoing coronal mass ejection effects. No further significant activity has occured, and while Region 1520 has become less of a threat, it still has the potential for further activity. Stay tuned for updates.

G1 (minor) Geomagnetic Storm activity is now occurring. Similar conditions, with a chance of category G2 (moderate) levels, anticipated through the weekend. Updates as conditions warrant.

The shock passed the ACE spacecraft at approximately 1730 UTC (1:30 p.m. EDT) today, July 14. Now watch for the CME and then, the imminent disturbance to the geomagnetic field. SWPC expects G1 (minor) and possibly G2 (moderate) geomagnetic storm levels over the next 36 hours. More as this unfolds.

As the forerunner solar wind protons continue a steady increase, indicators that the CME is on the way, the wait continues for it to impact the Earth's magnetic field. Look for that in the next few hours. Otherwise, similar to yesterday, Region 1520 has had the occasional Radio Blackout (flare), and the Solar Radiation Storm sits barely at the S1(minor) level; that may increase slightly with the passage of the CME. Updates here as conditions develop.

All eyes are on the solar wind data to note the expected passage on Saturday of a Coronal Mass Ejection (CME) from Thursday's solar event. SWPC expects G1 (minor) with the chance of attaining G2 (moderate) Geomagnetic Storm activity after 9:00 a.m. EDT (1300 UTC) on July 14. Elsewhere the S1 (minor) Solar Radiation Storm lingers, and Region 1520 has been quiet. Updates here as conditions warrant.

The latest model run now indicates the CME associated with yesterday's R3 (Strong) Radio Blackout event will impact the earth's magnetic field around 9:00 a.m. EDT (1300 UTC) on Saturday, July 14. SWPC is forecasting category G1 (Minor) Geomagnetic Storm activity then, with a chance of G2 (Moderate) levels at times through July 15. The S1 (Minor) Solar Radiation Storm persists just above event threshold. Region 1520 has decayed in the past 12 hours, but is still potentially eruptive.

The R3 (Strong) Radio Blackout today at 12:49 EDT (1649 UTC) was accompanied by an earth-directed CME. Hampered by limited observations of the event, SWPC forecasters are now anticipating the passage of the CME around 1:00 a.m. EDT, Saturday, July 14. G1 (minor) Geomagnetic Storm activity is expected to then ensue through the rest of the day. An S1 (minor) Solar Radiation Storm is now occurring, also a consequence of the flare/CME. The parent active region, NOAA 1520, appears to have retained its ability to erupt, so watch for more. Updates here.

R3-Radio Blackout Storms (Strong) are currently in effect. Region 1520, located close to center disk, is the culprit on today's events. It is still to early to see if an Earth-directed CME or energetic particles are associated with this event, however SWPC forecasters are monitoring the situation. Stay tuned for further information on this event and other Space Weather news.

R3 (Strong) Radio Blackout now occurring from a region at the center of the Sun, a prime location for a CME -- if a part of the eruption -- to affect the geomagnetic field. Observations now coming in, updates here.

Region 1515 has rotated out of view but remaining Region 1520 remains large and complex. Region 1520 has only produced R1 (Minor) activity to date, but it certainly has the potential for further activity. Stay tuned for updates as Region 1520 makes its way across the visible disk.

Region 1515 has just rotated out of view but remaining Region 1520 remains large and complex. Region 1520 has only produced R1 (Minor) activity to date, but it certainly has the potential for further activity. Stay tuned for updates as Region 1520 makes its way across the visible disk.

Region 1515 produced another impulsive, R2 (Moderate) solar flare radio blackout at 1632 UTC (12:32 PM EDT) on July 8. Solar radiation storm levels increased in response to this event but have now decayed below the S1 (Minor) threshold. Region 1515 is approaching the limb, but Region 1520 has just made its way onto the visible disk. Both of these regions have the potential for further activity, so stay tuned for updates.

Region 1515 produced another impulsive, R2 (Moderate) solar flare radio blackout at 1632 UTC (12:32 PM EDT) on July 8. Solar radiation storm levels increased in response to this event and but have now decayed below the S1 (Minor) threshold and continue a slow return to background levels. Region 1515 is approaching the limb, but Region 1520 has just made its way onto the visible disk. Both of these regions have the potential for further activity, so stay tuned for updates.

Region 1515 produced another impulsive, R2 (Moderate) solar flare radio blackout at 1632 UTC (12:32 PM EDT) on July 8. Solar radiation storm levels increased in response to this event and are just above the S1 (Minor) event threshold at this time. G1 (Minor) geomagnetic storming is possible through July 8 as a string of CMEs observed last week make their way past Earth. Region 1515 is approaching the limb, but Region 1520 has just made its way onto the visible disk. Both of these regions have the potential for further activity, so stay tuned for updates.

Region 1515 produced another impulsive, R2 (Moderate) solar flare radio blackout at 1632 UTC (12:32 PM EDT) on July 8. Solar radiation storm levels increased in response to this event but they still remain below the S1 (Minor) event threshold at this time. G1 (Minor) geomagnetic storming is possible through July 8 as a string of CMEs observed last week make their way past Earth. Region 1515 is approaching the limb, but Region 1520 has just made its way onto the visible disk. Both of these regions have the potential for further activity, so stay tuned for updates.

Region 1515 produced an impulsive R3 (Strong) solar flare radio blackout at 2308 UTC (7:08 PM EDT) on July 6. The coronal mass ejection (CME) associated with this event is not headed directly at Earth and only a mild (below G1) geomagnetic disturbance is expected on July 10 as a result. Solar Radiation Storm levels are now below the S1 (Minor) threshold and continue their slow decline toward background levels. Additionally, G1 (Minor) geomagnetic storming is possible through July 8 as a string of CMEs observed earlier in the week make their way past Earth. Stay tuned for updates.

Region 1515 produced an impulsive R3 (Strong) solar flare radio blackout at 2308 UTC (7:08 PM EDT) on July 6. Initial analysis indicates the coronal mass ejection (CME) associated with this event is not headed directly at Earth. A high-confidence WSA-Enlil model run is being done to refine that estimate. Solar Radiation Storm levels did exceed the S1 (Minor) threshold but appear to be in decline at this time. Additionally, G1 (Minor) geomagnetic storming is possible through July 8 as a string of coronal mass ejections (CMEs) observed earlier in the week make their way past Earth. Stay tuned for updates.

Region 1515 produced an impulsive R3 (Strong) solar flare radio blackout at 2308 UTC (7:08 PM EDT) on July 6. Preliminary analysis indicates the coronal mass ejection (CME) associated with this event is not headed directly at Earth. Additional imagery is needed before a high-confidence WSA-Enlil model run can be done to refine that estimate. Solar Radiation Storm levels continue to increase slowly and are currently above the S1 (Minor) threshold. Additionally, G1 (Minor) geomagnetic storming is possible through July 8 as a string of coronal mass ejections (CMEs) observed earlier in the week make their way past Earth. Stay tuned for updates.

Region 1515 produced an impulsive R3 (Strong) solar flare radio blackout at 2308 UTC (7:08 PM EDT) on July 6. Preliminary analysis indicates the coronal mass ejection (CME) associated with this event is not headed directly at Earth. Additional imagery is needed before a high-confidence WSA-Enlil model run can be done to refine that estimate. Solar Radiation Storm levels are slowly increasing above background levels but remain below the S1 (Minor) threshold at this time. Additionally, G1 (Minor) geomagnetic storming is possible through July 8 as a string of coronal mass ejections (CMEs) observed earlier in the week make their way past Earth. Stay tuned for updates.

Region 1515 produced an impulsive, R3 (Strong) solar flare radio blackout at 2308 UTC (7:08 PM EDT) on July 6 (impulsive flares rise and fall quickly and are generally not associated with the most significant space weather events). Additionally, G1 (Minor) geomagnetic storming is ongoing now and possible through July 8 as a string of coronal mass ejections (CMEs) observed earlier in the week make their way past Earth. An additional CME is likely associated with the R3 (Strong) event, but it will take some time for enough solar imagery to fill in to tell if this CME is indeed Earth-directed. Stay tuned for updates.

Elevated solar flare activity continues at this time with levels reaching the R2 (Moderate) level on July 4^th and 5^th. The bulk of activity is coming from Region 1515, a moderate-sized active region with a magnetic field complexity that harbors an isolated chance of X-class flare activity (X-class being R3, Strong, or greater). Geomagnetic storming is expected on July 7^thand 8^th as a string of coronal mass ejections from earlier in the week make their way past Earth. Significant storming is not expected, but periods reaching the G1 (Minor) level are possible. Stay tuned for updates.

Elevated solar flare activity continues at this time with levels reaching the R2 (Moderate) level on July 4^th and 5^th. The bulk of activity is coming from Region 1515, a moderate-sized active region with a magnetic field complexity that harbors an isolated chance of X-class flare activity (X-class being R3, Strong, or greater). Geomagnetic storming is expected early on July 8^th as a pair of coronal mass ejections observed on July 4^th make their way past Earth. Significant storming is not expected, but periods reaching the G1 (Minor) level are possible. Stay tuned for updates.

Elevated solar flare activity continues at this time with levels reaching the R2 (Moderate) level over the past 24 hours. The bulk of activity is coming from Region 1515, a moderate-sized active region with a magnetic field complexity that harbors an isolated chance of X-class flare activity (X-class being R3, Strong, or greater). Stay tuned for updates as Region 1515 continues its march across the solar disk.

The latest geomagnetic storm appears to be winding down, with the last period of G1 (Minor) activity coming late last night EDT. Solar Radiation Storm levels have returned to background levels after the small S1 (Minor) storm observed on June 16. No further activity is currently expected, but Region 1504 is still present and harbors a slight chance for subsequent activity.

G2 (Moderate) Geomagnetic Storm activity continued overnight and into the early morning hours of today (June 17). Continued minor to moderate geomagnetic storming is still possible as the effects of this disturbance subside. The small Solar Radiation Storm observed June 16 has now decayed below the S1 (Minor) threshold and continues its slow return to background levels. No further significant activity is currently expected, but Region 1504 is still present and harbors a slight chance for subsequent activity.

Another pulse in the solar wind at approximately 1900 UTC (3:00 p.m. EDT) today caused G2 (Moderate) Geomagnetic Storm activity to now occur. Strong Interplanetary Magnetic Fields and a jump in solar wind speed have fueled the disturbance. The Solar Radiation Storm has weakened, fluctuating now at the S1 (Minor) level. Updates here.

An S1 (Minor) Solar Radiation Storm began just before 4 p.m. (EDT) today June 16. This enhancement, not expected to get much larger, came as a product of the shock driven by the CME that passed some hours ago. Still no geomagnetic storm activity. Check here for updates.

The anticipated CME went by the ACE spacecraft at approximately 0900 UTC (5:00 a.m. EDT) today June 16. As yet the impact to the Earth's magnetic field has been minimal. Things may intensify over the day, updates here.

A Coronal Mass Ejection (CME) that left the Sun on June 14, appears to be earth-directed. It is expected to affect the geomagnetic field around the late afternoon -- early evening hours (EDT) tomorrow June 16. Periods of G1 (Minor) Geomagnetic Storm activity are likely soon thereafter. For updates, check this site.

The Solar Radiation Storm is winding down as Region 1476 disappears around west limb. Just a glancing blow is anticipated from yesterday's CME, that expected to possibly bring G1 (Minor) Geomagnetic Storm conditions for short periods on May 18. Any updates will appear in this space.

NOAA Region 1476, quiet and in decay for days, produced a very impulsive R2 (Moderate) Radio Blackout at 0147UTC on May 17 (9:47 p.m. EDT May 16). The region, now in the solar western hemisphere and magnetically well-connected to earth, also caused a very fast S2 (Moderate) Solar Radiation Storm with this eruption. Odds are the Radiation Storm has peaked. If a CME was launched, it is likely to be off-line with earth given the far western site of the event. Watch here for more details.

NOAA Region 1476, quiet and in decay for days, produced a very impulsive R2 (Moderate) Radio Blackout at 0143UTC on May 17 (9:43 p.m. EDT May 16). The region, now in the solar western hemisphere and magnetically well-connected to earth, also caused a very fast S2 (Moderate) Solar Radiation Storm with this eruption. Odds are the Radiation Storm has peaked. If a CME was launched, it is likely to be off-line with earth given the far western site of the event. Watch here for more details.

NOAA Region 1476 continues to rotate across the disk in a state of complacency. Still ominous and large, it has not produced any eruptive events of note. If it does, follow the occasion here.

NOAA Region 1476, now right in the middle of the solar disk, continues to dissipate its energy in relatively small bursts of modest flares and weak CMEs. That output belies its appearance -- large sunspots and entangled magnetic fields. Forecasters are vigilant, watch here should things break loose.

NOAA Region 1476, now right in the mioddle of the solar disk, continues to dissipate its energy in relatively small bursts of modest flares and weak CMEs. That output belies its appearance -- large sunspots and entangled magnetic fields. Forecasters are vigilant, watch here should things break loose.

NOAA Region 1476 remains eruptive, producing occasional Radio Blackouts over the past 24 hours. The largest event was an R2 (Moderate) at 0418UTC (00:18 a.m. EDT) today, May 10. There are indications of a CME as part of that event, analysis now occurring. More Radio Blackouts expected today, watch here for the latest.

NOAA Region 1476, now poised just to the east of center on the solar disk, produced an impulsive R1(Minor) Radio Blackout at 1232 UTC (8:32 EDT) today. The region is quite prominent, although just one-third in area of the large regions of the Halloween Storms in 2003, and exhibits a slight degree of magnetic complexity. It will be in direct alignment with earth in a few days, so CME's then would be likely to spawn geomagnetic activity. Watch here for further developments.

A G2 (Moderate) geomagnetic storm took place overnight as a result of the partial halo coronal mass ejection (CME) observed on 19 April. Storming has subsided at this point but G1 (Minor) conditions are possible again on 26 April as another CME is expected to make its way past Earth. Stay tuned to this website and the SWPC Facebook page for updates.

Moderate (G2) geomagnetic storming is occurring and Strong (G3) storms are likely in conjunction with the arrival of the solar eruptions from April 18th and 19th. These eruptions arrived within hours of their expected times and the second event came in with the magnetic field favorably oriented for moderate to strong storming. Activity should continue through the night in North America and stay tuned to this website and the SWPC Facebook page for updates. To see if you have a chance at catching the aurora tonight, check out the SWPC Ovation Aurora Prediction page.

As of this afternoon, MDT, all GOES 15 space weather data and imagery have been restored to full operational capability.

Just in: GOES 15 xray, particle and magnetometer data are now again accessible as of about 1600 UTC (noon EDT) today. Imagery should be available again at approximately 1900 UTC.

Just in: GOES 15 xray and magnetometer data are now again accessible as of about 1600 UTC (noon EDT) today. Imagery should be available again at approximately 1900 UTC.

Just in: GOES 15 xray data are now again accessible as of about 1600 UTC (noon EDT) today. Imagery should be available again at approximately 1900 UTC.

UPDATE: Recent analysis indicates GOES 15 data to return about 1600 UTC (noon EDT) tomorrow Friday, March 23. Watch here for any changes.

GOES 15 space weather data has been temporarily interrupted. SWPC alerts, warnings, and watches are unaffected due to the internal use of backup data. Watch here for updates.

Due to recent and ongoing space weather activity, SWPC is under a moratorium for changes to operational systems. As a result, the following change will be postponed one week to Monday, March 19: Beginning Monday, March 12, 2012, the Weekly Bulletin will now be issued and available on the SWPC web page every Monday morning by 1500 UT (10am EST). The Weekly is currently issued on Tuesdays.

A stronger than anticipated impact from the CME of March 13 caused recent G2 (Moderate) Geomagnetic Storm activity. Region 1429, the site of the eruption, has not been productive today. Updates as conditions warrant.

NOAA Region 1429 yielded an R2 (Moderate) Radio Blackout at 1741 UTC on March 13 (1:41 p.m. EDT). The Solar Radiation Storm associated with this event continues its slow decay toward background levels. The coronal mass ejection associated with this event was not headed directly at Earth, so only low levels of geomagnetic storming are expected as a result. Region 1429 is due to rotate off the disk shortly but still holds the potential for additional Radio Blackout or Solar Radiation Storm activity as it makes its way out of view.

NOAA Region 1429 yielded an R2 (Moderate) Radio Blackout at 1741 UTC (1:41 p.m. EDT). The Solar Radiation Storm promptly reached S2 (Moderate) levels, but now should slowly decline. A CME also occurred that appears to be on a path not towards Earth. Updates as appropriate here.

Region 1429 now producing an R2 (Moderate) Radio Blackout; Solar Radiation Storm likely to intensify. The region is now positioned in the far western solar hemisphere.Watch here for updates.

POES data products will be temporarily unavailable beginning February 29th while SWPC upgrades IT systems. This upgrade will ensure the long term security and robustness of our operations. In the meantime, please refer to the Ovation Auroral Forecast test product which provides similar information to the POES Auroral plots and is also predictive. You can find Ovation at: http://helios.swpc.noaa.gov/ovation.

Regaion 1429 now producing an R2 (Moderate) Radio Blackout; Solar Radiation Storm likely to intensify. The region is now positioned in the far western solar hemisphere.Watch here for updates.

No additional geomagnetic storm activity is expected at this time; all coronal mass ejections that were expected to affect Earth appear to have passed. Also, the Solar Radiation Storm has decreased below the S1 (Minor) threshold and continues a slow decay toward background levels. Region 1429 remains complex but has shown signs of weakening. Continued activity is possible as Region 1429 approaches the limb and rotates out of view over the next several days. Updates here as conditions warrant.

Continued geomagnetic activity reaching the G3 (Strong) level is possible between now and the end of March 13 as the parade of recent coronal mass ejections affect Earth. Meanwhile, the Solar Radiation Storm has decreased below the S1 (Minor) threshold and continues a slow decay toward background levels. Region 1429 remains complex, but is showing signs of weakening. No significant Radio Blackout events have been observed in the last 36 hours, so no further significant activity is currently expected after March 13. That said, continued activity is possible and any subsequent events would change that outlook. Updates here as conditions warrant.

Geomagnetic storming reaching the G2 (Moderate) level is underway. Continued geomagnetic activity reaching the G3 (Strong) level is likely between now and the end of March 13 as the parade of recent coronal mass ejections affect Earth. Meanwhile, the Solar Radiation Storm continues its decay and is currently at the S1 (Minor) level. Region 1429 remains complex, but is showing signs of weakening. No significant Radio Blackout events have been observed in the last 24 hours, so no further significant activity is currently expected after March 13. That said, continued activity is possible and any subsequent events would change that outlook. Updates here as conditions warrant.

The coronal mass ejection (CME) associated with the R2 (Moderate) Radio Blackout that occurred at 0353 UTC March 9 (10:53 p.m. EST March 8) was expected to cause strong geomagnetic storming beginning early on March 11. Little in the way of storming has been observed, but there was a weak disturbance starting around 1230 UTC March 11 (7:30 a.m. EDT). This CME wasn’t headed straight for Earth, so this weak disturbance may be all that results from just skirting the edge of this CME. The coronal mass ejection associated with the R2 (Moderate) Radio Blackout event from 1744 UTC March 10 (12:44 p.m. EST March 10) should start to affect Earth late on March 12 to early on March 13 with G2 (Moderate) to isolated G3 (Strong) levels likely. Meanwhile, the Solar Radiation Storm continues its decay and is currently at the S1 (Minor) level. Region 1429 remains complex, but is showing signs of weakening. Updates here as conditions warrant.

The coronal mass ejection associated with the R2 (Moderate) Radio Blackout that occurred at 0353 UTC March 9 (10:53 p.m. EST March 8) was expected to cause more geomagnetic storming beginning early on March 11, with intensities likely to reach the G3 (Strong) level. That CME hasn’t arrived as early as predicted, so stay tuned for updates as the day progresses. The coronal mass ejection associated with the R2 (Moderate) Radio Blackout event from 1744 UTC March 10 (12:44 p.m. EST March 10) should start to affect Earth late on March 12 to early on March 13, with intensities lower than those observed with the events of last week; forecast specifics are still in work. Meanwhile, the Solar Radiation Storm continues its decay and is currently at the S1 (Minor) level. Region 1429 remains complex, but is showing signs of weakening. Updates here as conditions warrant.

Region 1429 remains active with another R2 (Moderate) Radio Blackout event at 1744 UTC March 10 (12:44 p.m. EST March 10). This event did have a coronal mass ejection associated with it and analysis continues to estimate what impact this could have on Earth. Meanwhile, Solar Radiation Storm levels remain above the S2 (Moderate) threshold, their decay being slowed by the continued activity. The coronal mass ejection associated with the R2 (Moderate) Radio Blackout that occurred at 0353 UTC March 9 (10:53 p.m. EST March 8) is expected to cause more geomagnetic storming beginning early on March 11, with intensities likely to reach the G3 (Strong) level. Updates here as conditions warrant.

The geomagnetic storm associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) has come to a close. Additionally, Solar Radiation Storm levels remain above the S2 (Moderate) threshold but continue their slow decay. The coronal mass ejection associated with the R2 (Moderate) Radio Blackout occurring at 0353 UTC March 9 (10:53 p.m. EST March 8) is expected to cause more geomagnetic storming beginning early on March 11, with intensities likely to reach the G3 (Strong) level. Region 1429 remains complex and subsequent activity is certainly possible.

The geomagnetic storm associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) has come to a close. Additionally, Solar Radiation Storm levels remain above S2 (Moderate) threshold but continue their slow decay. The coronal mass ejection associated with the R2 (Moderate) Radio Blackout occurring at 0353 UTC March 9 (10:53 p.m. EST March 8) is expected to cause more geomagnetic storming beginning early on March 11, with intensities likely to reach the G3 (Strong) level. Region 1429 remains complex and subsequent activity is certainly possible.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) continues to affect the Earth, with the storm peaking at G3 (Strong) levels overnight and into the morning. This storm is now showing signs of subsiding, but lower levels of activity will still continue throughout the day. Solar Radiation Storm levels remain at S2 (Moderate) levels, flattening out in response to a R2 (Moderate) Radio Blackout occurring at 0353 UTC March 9 (10:53 p.m. EST March 8). The R2 event had an associated coronal mass ejection that is expected to cause more geomagnetic storming beginning early on March 11, with intensities likely to again reach the G3 (Strong) level. Region 1429 remains potent and subsequent activity is certainly possible.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) continues to affect the Earth and G3 (Strong) storming levels have now been observed. The magnetic field orientation needed to cause strong geomagnetic storming finally occurred overnight, so although it got off to a slow start, levels have reached what was predicted. Solar Radiation Storm levels remain at S2 (Moderate) levels, flattening out in response to a new, R2 (Moderate) solar flare occurring at 0353 UTC March 9 (10:53 p.m. EST March 8). This R2 event had an associated coronal mass ejection and analysis is pending to determine the expected arrival time and resulting geomagnetic storm intensity.

The geomagnetic storm that began at 1105 UTC March 8 (6:05 a.m. EST) has a sting in its tail, giving the forecasted G3 (Strong) intensities late in the event at 0724 UTC March 9 (02:24 a.m. EST). G1 (Minor) to G3 (Strong) storm levels are expected for at least another 6 hours. The radiation storm that is in progress is abating, falling to the S2 (Moderate) level and dropping rapidly. In the meantime, a new event is grabbing our attention. When Region 1429 was pointed directly at Earth, it unleashed an R2 (Moderate) solar flare at 0353 UTC March 9 (10:53 p.m. EST March 8) and an associated coronal mass ejection now beginning its journey towards Earth. Analysis is pending to determine the expected arrival time and resulting geomagnetic storm intensity.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 continues to minimally affect the Earth and G1 (Minor) storming levels have been observed since the onset at 1105 UTC March 8 (6:05 a.m. EST March 8). Although the magnetic field strength of this CME has been fairly high, it hasn’t been of the orientation needed to cause strong geomagnetic storming. The disturbance is not over, but storming reaching the G3 (Strong) levels as initially predicted is becoming less likely as influence from this CME wanes. Solar Radiation Storm levels have just decreased below the S3 (Strong) threshold and are expected to continue their slow decay over the next several days, barring additional activity. Region 1429, the source of these events, is near the center of the solar disk and continues to have the potential for significant activity. Updates will follow as conditions warrant.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) arrived at ACE at 1045 UTC today (5:45 a.m. EST March 8). So far the orientation of the magnetic field has been opposite of what is needed to cause the strongest storming. As the event progresses, that field will continue to change. Based on overall strength, the predictions for periods reaching the G3 level look justified. Additionally, the Solar Radiation Storm levels remain above the S3 (Strong) threshold at this time, but are starting to show the first signs of decay. Region 1429 remains potent and subsequent activity is certainly possible. Updates here as conditions warrant.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) arrived at ACE at 1045 UTC today (5:45 a.m. EST March 8). So far the orientation of the magnetic field has been opposite of what is needed to cause the strongest storming. As the event progresses, that field will continue to change. Based on overall strength, the predictions for periods reaching the G3 level look justified. Additionally, the Solar Radiation Storm levels remain above the S3 (Strong) threshold at this time, with values rising momentarily with shock arrival. Region 1429 remains potent and subsequent activity is certainly possible. Updates here as conditions warrant.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) arrived at ACE at 1045 UTC today (5:45 a.m. EST March 8). So far the orientation of the magnetic field has been opposite of what is needed to cause the strongest storming. As the event progresses, that field will continue to change. Based on overall strength, the predictions for periods reaching the G3 level look justified. Additionally, the Solar Radiation Storm levels remain above the S3 (Strong) threshold at this time, with values rising at the moment with the shock arrival. Region 1429 remains potent and subsequent activity is certainly possible. Updates here as conditions warrant.

The coronal mass ejection (CME) associated with the R3 (Strong) Radio Blackout event from 0024 UTC March 7 (7:24 p.m. EST March 6) is forecast to pass ACE early morning UTC on March 8 (start of day EST March 8). Geomagnetic storm periods reaching the G3 (Strong) level are likely as a result. Additionally, the Solar Radiation Storm levels remain above the S3 (Strong) threshold at this time. Region 1429 remains potent and subsequent activity is certainly possible. Updates here as conditions warrant.

The CME that erupted late on March 4 passed ACE around 0400 UTC March 7 (11:00 p.m. EST March 6). As a result, storming reaching the G2 (Moderate) level continues at this time. Another CME, part of the recent R3 (Strong) Radio Blackout event at 0024 UTC March 7 (7:24 p.m. EST March 6) is forecast to pass ACE early morning UTC on March 8 (start of day EST March 8) . Geomagnetic storm periods reaching the G3 (Strong) level are likely from that CME. Finally, a Solar Radiation Storm is also in progress and levels are currently above the S3 (Strong) threshold. Region 1429 remains potent and subsequent activity is certainly possible. Updates here as conditions warrant.

The CME that erupted late on March 4 passed ACE around 0400 UTC March 7 (11:00 p.m. EST March 6). So far we’ve observed G2 (Moderate) levels of storming in association with that event. Conditions are currently decreasing for that event, so subsequent G2 storming is not expected at this time. Another CME, part of the recent R3 (Strong) Radio Blackout event at 0024 UTC March 7 (7:24 p.m. EST March 6) is forecast to pass ACE about a day from now and is certain to cause more geomagnetic storming. Images of the CME from the SOHO LASCO coronograph have just backfilled so analysis is underway now to refine the prediction of arrival time and magnitude. Finally, a Solar Radiation Storm is also in progress and levels have just crossed the S3 (Strong) threshold. Updates here as conditions warrant.