An approximate 14 degree solar filament eruption began at 20:25 UTC on April 9, 2017, from the northeast quadrant of the Sun. The event generated a coronal mass ejection (CME) and a glancing blow is possible on April 15. The CME was first observed in SOHO/LASCO C2…
A G1 – Minor geomagnetic storm is in progress as of 08:14 UTC on April 4, 2017, due to Earth's proximity to the heliospheric current sheet (HCS) and weak influences of the southern polar, negative coronal hole high speed stream (CH HSS). Geomagnetic K-index of 5…
A moderately strong solar flare measuring M5.8 (R2 – Moderate) erupted from Region 2644 at 14:29 UTC on April 3, 2017. The event started at 14:19 and ended at 14:34 UTC. This is the 7th and the strongest M-class solar flare since late April 1, 2017. It is also the…
Departing Active Region 2644 erupted with seven M-class solar flares since late April 1, 2017. The series started with M4.4 on April 1 and was followed by M5.3, M2.3, M2.1 and M5.7 on April 2, and M1.2 and M5.8 on April 3. Multiple coronal mass ejections were…
A recurrent, negative-polarity coronal hole is affecting our planet, causing geomagnetic storming. A G2 – Moderate geomagnetic storm watch is in effect for March 28 and 29. A high speed solar wind stream produced by a recurrent, negative-polarity (potent) coronal…
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) which is causing geomagnetic storming. G1 – Minor geomagnetic storm threshold was first reached at 16:12 UTC on March 21, 2017. A G2 – Moderate geomagnetic storm warning was…
A negative polarity, polar-connected coronal hole high speed stream (CH HSS) is affecting Earth for the second day in a row, sparking geomagnetic storms reaching G2 Moderate levels. Over the past 24 hours, the solar wind environment was elevated due to the passage…
Earth is under the influence of a recurrent, polar-connected coronal hole which has sparked G1 (Minor) geomagnetic storming today. Unsettled to active conditions, with G1 storming likely, are expected to continue through March 2. Geomagnetic K-index of 5 (G1 – Minor…
Our planet is under the influence of a recurrent, positive polarity coronal hole high speed stream since around 20:48 UTC on February 23. This is causing G1 geomagnetic storming. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was first reached at…
A recurrent, negative polarity coronal hole high-speed stream (CH HSS) is affecting our planet causing isolated periods of G1 Minor geomagnetic storming and vivid auroras. High-speed solar wind speed hit Earth late January 31, 2017. Geomagnetic K-index of 5 (G1 -…
