Space Weather by SolarHam
@solarham.bsky.social
SolarHam.com is a space weather website launched in 2006 dedicated to providing the latest information about the Sun, including sunspots, solar flares and coronal mass ejections.
X5.1 solar flare around AR 4274. Proton levels are already on the rise. Wide area of coronal dimming evident meaning a large Earth directed CME is likely. SolarHam.com
November 11, 2025 at 10:47 AM
X5.1 solar flare around AR 4274. Proton levels are already on the rise. Wide area of coronal dimming evident meaning a large Earth directed CME is likely. SolarHam.com
Major solar flare in progress.
The latest event is now peaking around the X5 level and the source is AR 4274. More to follow.
The latest event is now peaking around the X5 level and the source is AR 4274. More to follow.
November 11, 2025 at 10:10 AM
Major solar flare in progress.
The latest event is now peaking around the X5 level and the source is AR 4274. More to follow.
The latest event is now peaking around the X5 level and the source is AR 4274. More to follow.
Moderate (G2) to Strong (G3) geomagnetic storm watch in effect for November 11-12. Full details on SolarHam.com
November 10, 2025 at 10:08 PM
Moderate (G2) to Strong (G3) geomagnetic storm watch in effect for November 11-12. Full details on SolarHam.com
AR 4274 is back at it again with an X1.2 solar flare currently in progress (11/10 @ 09:22 UTC) SolarHam.com
November 10, 2025 at 9:30 AM
AR 4274 is back at it again with an X1.2 solar flare currently in progress (11/10 @ 09:22 UTC) SolarHam.com
AR 4274 just produced an X1.7 solar flare peaking at 07:35 UTC (Nov 9). An Earth directed CME will be likely. More to follow. SolarHam.com
November 9, 2025 at 7:58 AM
AR 4274 just produced an X1.7 solar flare peaking at 07:35 UTC (Nov 9). An Earth directed CME will be likely. More to follow. SolarHam.com
A coronal mass ejection (CME) just passed the ACE spacecraft and a passage past Earth is expected within the next half hour. The solar wind speed is currently near 800 km/s. More to follow.
November 7, 2025 at 5:17 AM
A coronal mass ejection (CME) just passed the ACE spacecraft and a passage past Earth is expected within the next half hour. The solar wind speed is currently near 800 km/s. More to follow.
Bz currently pointing south. A moderate (G2) geomagnetic storm watch is now in effect until 09:00 UTC (Nov 6). SolarHam.com
November 5, 2025 at 10:39 PM
Bz currently pointing south. A moderate (G2) geomagnetic storm watch is now in effect until 09:00 UTC (Nov 6). SolarHam.com
M8.6 solar flare produced by AR 4274 at 22:07 UTC (Nov 5). A northerly directed CME will likely be associated. Further updates regarding possible Earth directed component to follow. SolarHam.com
November 5, 2025 at 10:31 PM
M8.6 solar flare produced by AR 4274 at 22:07 UTC (Nov 5). A northerly directed CME will likely be associated. Further updates regarding possible Earth directed component to follow. SolarHam.com
Two X-Flares today so far. X1.8 around AR 4274 in the northeast quadrant and just now, an X1.1 from behind the southeast limb. SolarHam.com
November 4, 2025 at 10:21 PM
Two X-Flares today so far. X1.8 around AR 4274 in the northeast quadrant and just now, an X1.1 from behind the southeast limb. SolarHam.com
Another M-Flares produced by AR 4274, this time an M3.5 at 01:49 UTC (Nov 4). SolarHam.com
November 4, 2025 at 2:00 AM
Another M-Flares produced by AR 4274, this time an M3.5 at 01:49 UTC (Nov 4). SolarHam.com
Long duration M5.0 solar flare in progress around AR 4272 and company. This appears to be eruptive and will likely produce a coronal mass ejection (CME). Stay tuned for details.
November 3, 2025 at 10:23 AM
Long duration M5.0 solar flare in progress around AR 4272 and company. This appears to be eruptive and will likely produce a coronal mass ejection (CME). Stay tuned for details.
A moderate (G2) geomagnetic storm watch is in effect until 15:00 UTC (Oct 30). This is due to the ongoing effects of a coronal hole stream currently moving past Earth. The Bz component of the interplanetary magnetic field (IMF) has been pointing sharply south the past few hours.
October 30, 2025 at 11:03 AM
A moderate (G2) geomagnetic storm watch is in effect until 15:00 UTC (Oct 30). This is due to the ongoing effects of a coronal hole stream currently moving past Earth. The Bz component of the interplanetary magnetic field (IMF) has been pointing sharply south the past few hours.
Bright CME emerging off the farside of the Sun at 02:00 UTC (Oct 29). The source may have been old AR 4246, now 4 days away from reaching the east limb. SolarHam.com
October 29, 2025 at 2:32 AM
Bright CME emerging off the farside of the Sun at 02:00 UTC (Oct 29). The source may have been old AR 4246, now 4 days away from reaching the east limb. SolarHam.com
Geomagnetic storm watch issued beginning October 28th when a coronal hole stream is predicted to reach Earth. Minor (G1) storming , possibly even reaching moderate (G2) levels is currently expected. SolarHam.com
October 26, 2025 at 3:22 PM
Geomagnetic storm watch issued beginning October 28th when a coronal hole stream is predicted to reach Earth. Minor (G1) storming , possibly even reaching moderate (G2) levels is currently expected. SolarHam.com
A bright, fast moving CME is now visible leaving the farside of the Sun. Full update on SolarHam.com
October 21, 2025 at 9:37 PM
A bright, fast moving CME is now visible leaving the farside of the Sun. Full update on SolarHam.com
Minor (G1) storming observed thanks to the enhanced solar wind stream. Currently the solar wind speed is around 550 km/s and the Bz component of the interplanetary magnetic field is pointing south. Aurora sky watchers at higher latitudes should be alert if it is dark outside.
October 18, 2025 at 6:21 PM
Minor (G1) storming observed thanks to the enhanced solar wind stream. Currently the solar wind speed is around 550 km/s and the Bz component of the interplanetary magnetic field is pointing south. Aurora sky watchers at higher latitudes should be alert if it is dark outside.
M4.8 solar flare produced by AR 4246 at 04:15 UTC (Oct 15).
October 15, 2025 at 4:35 AM
M4.8 solar flare produced by AR 4246 at 04:15 UTC (Oct 15).
An M2.6 solar flare along with a prominence eruption off the southwest limb on Tuesday morning. Image by GOES-19 SUVI. SolarHam.com
September 30, 2025 at 10:01 AM
An M2.6 solar flare along with a prominence eruption off the southwest limb on Tuesday morning. Image by GOES-19 SUVI. SolarHam.com
Active to Minor (G1) storm conditions is being observed on Monday thanks to an enhanced solar wind stream containing a long sector of southward Bz. Aurora sky watchers at high latitudes should be alert if it is dark outside.
September 29, 2025 at 3:48 PM
Active to Minor (G1) storm conditions is being observed on Monday thanks to an enhanced solar wind stream containing a long sector of southward Bz. Aurora sky watchers at high latitudes should be alert if it is dark outside.
A moderately strong M6.4 solar flare was detected this morning around AR 4232 at 08:43 UTC (Sept 28). So far the event does not look to be the source of an Earth directed CME. Image by SDO/AIA.
September 28, 2025 at 10:12 AM
A moderately strong M6.4 solar flare was detected this morning around AR 4232 at 08:43 UTC (Sept 28). So far the event does not look to be the source of an Earth directed CME. Image by SDO/AIA.
A large prominence is currently liftoff near the northeast limb. Image by GOES-19 SUVI. SolarHam.com
September 21, 2025 at 10:23 PM
A large prominence is currently liftoff near the northeast limb. Image by GOES-19 SUVI. SolarHam.com
Strong G3 geomagnetic storm threshold reached at 02:59 UTC (Sept 15). SolarHam.com
September 15, 2025 at 3:46 AM
Strong G3 geomagnetic storm threshold reached at 02:59 UTC (Sept 15). SolarHam.com
Geomagnetic K-Index of 6 expected
Valid From: 2025 Sep 15 0055 UTC
Valid To: 2025 Sep 15 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
SolarHam.com
Valid From: 2025 Sep 15 0055 UTC
Valid To: 2025 Sep 15 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
SolarHam.com
September 15, 2025 at 1:05 AM
Geomagnetic K-Index of 6 expected
Valid From: 2025 Sep 15 0055 UTC
Valid To: 2025 Sep 15 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
SolarHam.com
Valid From: 2025 Sep 15 0055 UTC
Valid To: 2025 Sep 15 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
SolarHam.com
Coronal hole stream now moving past Earth around 600 km/s. Minor (G1) geomagnetic storm currently in progress. SolarHam.com
September 15, 2025 at 12:06 AM
Coronal hole stream now moving past Earth around 600 km/s. Minor (G1) geomagnetic storm currently in progress. SolarHam.com
A minor (G1) geomagnetic storm watch was just officially added by NOAA/SWPC beginning Sept 14th when the expected coronal hole stream is predicted to reach Earth. SolarHam.com
September 13, 2025 at 3:01 PM
A minor (G1) geomagnetic storm watch was just officially added by NOAA/SWPC beginning Sept 14th when the expected coronal hole stream is predicted to reach Earth. SolarHam.com