NOAA/SWPC have issued a moderate (G2) geomagnetic storm watch for April 17th and 18th in response to an expected coronal hole stream. Aurora sky watchers especially at higher latitudes should be alert this weekend. SolarHam.com
Incoming CME detected at 15:04 UTC (Apr 3). Passage past Earth expected within the hour. SolarHam.com
AR 4409 nearing center disk continued to show signs of development in both size and magnetic complexity over the past 24 hours. The region is now producing frequent minor C-Flares and was also the source of an M1.3 flare at 07:56 UTC (Apr 3).
Impressive CME emerging following an eruption Wednesday evening around AR 4403. More information via SolarHam.com
A nice eruption was just observed in the northwest quadrant in the vicinity of AR 4403. Full update via SolarHam.com
A solar wind stream flowing from coronal hole #34 is expected to reach Earth by March 30th. NOAA/SWPC issued a minor (G1) geomagnetic storm watch for Monday.
Long duration M1.3 solar flare detected around AR 4405 peaking at 04:15 UTC (Mar 28). A CME is likely associated. Because the eruption site is near the SE limb, it should be directed mostly away from Earth. More to follow. SolarHam.com
Strong (G3) geomagnetic storm now in progress. Threshold was reached at 10:42 UTC (March 22).
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2026 Mar 22 1042 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
A Strong (G3) geomagnetic storm is currently in progress. Threshold reached at 23:28 UTC (Mar 20). SolarHam.com
A minor (G1) geomagnetic storm is currently in progress. A watch for moderate (G2) conditions is in effect until 06:00 UTC (Mar 21). The SWS increased to around 500 km/s and the IMF strength to 30 nT. Bz also tipping south. SolarHam.com
Halo CME emerging off the farside of the Sun on Friday. A number of returning sunspot regions are expected next week. SolarHam.com
A moderate (G2) geomagnetic storm watch has officially been added for March 19th when a CME that left the Sun earlier today is expected to pass Earth. SolarHam.com
A coronal mass ejection (CME) is associated with an M2.7 solar flare early Monday around AR 4392. It is possibly Earth directed with an impact possible within 48-72 hours. A further update will be provided once SWPC release a proper forecast.
Moderate (G2) geomagnetic storm threshold reached at 23:40 UTC (March 13). Solar wind currently 600-700 km/s and Bz pointing south at times. SolarHam.com
An expected coronal hole stream is now reaching Earth. The minor (G1) geomagnetic storm threshold was reached at 11:59 UTC (Mar 13). High latitude aurora watchers should be alert during the next 24-48 hours. SolarHam.com
Coronal hole #31 is well established as it turns to face Earth. A high speed solar wind stream is expected to reach our planet beginning Friday (3/13). A minor (G1) geomagnetic storm watch has been issued.
A minor (G1) geomagnetic storm watch is now in effect until 03:00 UTC (March 4). An enhanced solar wind stream containing sectors of southward Bz is currently moving past our planet.
Solar activity is now at moderate levels. A new active region turning into view from off the southeast limb produced an M2.4 solar flare at 15:59 UTC (Feb 25). Image by SDO/AIA.
A coronal mass ejection (CME) passed Earth at UTC (Feb 4). A geomagnetic sudden impulse measuring 16 nT was detected by a magnetometer in Boulder, Colorado. So far the impact appears to be fairly mild, however active (Kp4) to minor (G1) storm conditions may be possible today.
Longer duration X1.6 solar flare observed around AR 4366 peaking at 08:13 UTC (Feb 2). A further update will be provided later if a CME is associated. SolarHam.com
X-Class solar flare currently in progress around AR 4366. SolarHam.com
Impulsive X8.1 solar flare observed at 23:57 UTC (Feb 1). There was secondary peak of X1.5 at 00:22 UTC (Feb 2). More to follow. SolarHam.com
A strong X8.1 solar flare was just detected around AR 4366 peaking at 23:57 UTC (Feb 1). More to follow. solarham.com
At least fifteen M-Flares and one X-Flare produced by AR 4366 on Sunday (Feb 1st)... so far. No Earth directed CMEs appear associated at this time. SolarHam.com
Active sunspot region (AR 4366) is expanding quickly and producing frequent minor C-Flares. A moderate M-Flare will be possible on Saturday. SolarHam.com
Severe (G4) geomagnetic storm again in progress. Threshold reached at 08:23 UTC (Jan 20). SolarHam.com
Not something you see very often. Lower energy proton levels off the chart and a Severe (S4) radiation storm is currently in progress. solarham.com
Major X1.9 solar flare detected at 18:08 UTC (Jan 18) around AR 4341. Earth directed CME likely. More to follow. SolarHam.com
New spot growth observed within the southern section of AR 4341 on Wednesday and an M1.6 solar flare was detected at 20:32 UTC (Jan 14). SolarHam.com
A look at the CME leaving the Sun following a strong solar flare behind the southeast limb late on Sunday evening. It will be directed away from Earth. SolarHam.com