SolarHam News (June 2026)
Space Weather Update
June 4, 2026 @ 20:30 UTC
Much quieter solar activity so far on Thursday in comparison to yesterday. Only minor C-Flares have been detected as of this updated. Magnetic instability around AR 4455 appears to have weakened, however an isolated moderate M-Flare will remain a possibility during the next 24 hours.
Geomagnetic activity is also at quiet levels with an expected CME passage yet to be detected. Moderate (G2) to Strong (G3) geomagnetic storming had been forecast between 15 and 21:00 UTC (June 4) and this window is about to close. ACE EPAM particle levels have been slowly trickling higher, so an expected incoming CME may still be approaching. A further update will be provided once a shock passage is detected.
Strong (G3) Geomagnetic Storm Watch
June 3, 2026 @ 15:35 UTC
Two of the coronal mass ejections have been modeled and NOAA/SWPC are calling for a possible combined impact during the next 24-48 hours. A strong (G3) geomagnetic storm watch has been issued for June 4th and 5th. Aurora sky watchers at middle to high latitudes should be alert over the next several days should an impact unfold as forecast.
X1 and M7 Solar Flares
June 3, 2026 @ 11:55 UTC
I guess it was just a matter of time. Hyperactive sunspot region 4455 just touched the X-Class level with this X1.07 solar flare peaking at 11:28 UTC (June 3). Although bright, this event may not have been eruptive as some of the previous M-Flares from earlier this morning. An M7.7 flare at 07:00 UTC did
launch a CME into space with a mostly northward trajectory, but an Earth directed component may be possible. A further update regarding the M7 an X1 flares will be provided a little later. More flaring possible so stay tuned!
Near X-Flare
June 3, 2026 @ 02:45 UTC (UPDATED)
A solar flare measuring M9.3 was detected around Earth facing sunspot region 4455 peaking at 01:36 UTC (June 3). A fairly faint CME is
now emerging in updated coronagraph imagery. More to follow.
CME Update: The M9 flare was associated with a faint halo CME which appears to have an Earth directed component. An initial tracking model by NASA shows a potential passage past our planet by June 5th. Click HERE for the model.
Three Solar Eruptions
June 2, 2026 @ 17:35 UTC (UPDATED)
Three eruptive events were observed on Tuesday (6/2/2026) . Here is a look at each event and two coronal mass ejections directed towards solar east. The first event was a filament liftoff in the southeast quadrant beginning at 09:35 UTC. This resulted in the first CME visible in GOES-19 CCOR-1 imagery. The second event was a large eruption from behind the northeast limb that first became visible at 19:40 UTC. This was responsible for the second and larger CME seen in this video. The third event, an M3.3 flare around Earth facing AR 4455, took place around the same time as the limb eruption and we are still waiting for further imagery to determine if a Earth directed CME is associated with it. More to follow
UPDATE: The M3.3 flare around AR 4455 did show coronal dimming, however a noteworthy CME does not appear associated with that event. At best, a weak transient may be possible within 48-72 hours. Additional M-Flares will remain possible during the next 24 hours with AR 4455 being the most likely to produce a flare.
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Coronal Hole Facing Earth
June 1, 2026 @ 02:45 UTC
Coronal hole #62 is now directly facing Earth. A solar wind stream flowing from this zone is expected to reach our planet beginning June 3rd and into the 4th. Currently active geomagnetic conditions (Kp4) with a chance for minor (G1) geomagnetic storming (Kp5) should be expected. More updates in the days ahead. Image by SDO/AIA using the 193 angstroms channel.
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