G1 – Minor geomagnetic storm watch in effect
Image credit: NASA/ESA SOHO LASCO C2. Acquired on July 15, 2022
A G1-Minor geomagnetic storm watch is in effect for July 21, 22 and 23, 2022 as a result of slow-moving coronal mass ejection (CME) coupled with negative polarity coronal hole high speed stream (CH HSS).
Mostly active levels are anticipated on July 20 with a slow-moving CME that left the Sun on July 15 after an approximate 37-degree long, E/W oriented filament erupted around 13:08. While most of the ejecta was reabsorbed, a subsequent partial-halo CME was produced during the event, with a part of it directed toward Earth.
Active geomagnetic field levels are expected to carry over into July 21 and 22, reinforced by a negative polarity CH HSS that arrives as early as July 21.
As a result, a G1 – Minor geomagnetic storming is likely from July 21 to 23.
Partial-halo CME produced on July 15, 2022. Credit: NASA/ESA SOHO LASCO C2. Acquired on July 15, 2022
Solar activity was low over the past 24 hours, with no M-class or greater flares. All of the numbered regions on the disk were stable or in decay.
The activity is expected to remain low with a chance for M-class flares (R1-R2, Minor-Moderate radio blackouts) and a slight chance for X-flares (R3 Strong or greater radio blackouts) through July 22.
Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.
