CH HSS sparks G2 – Moderate geomagnetic storm
Elevated geomagnetic activity was recorded on Earth on June 13, 2025, due to the waning effects of a negative polarity coronal hole high-speed stream and possible transient effects.
CME impacts Earth sparking widespread aurora, G3 – Strong storm Watch in effect for April 16
A coronal mass ejection produced by a filament eruption on April 13 impacted Earth’s magnetic field at 16:37 UTC on April 15, sparking a G2 – Moderate geomagnetic storm. A G3 – Strong geomagnetic storm watch is in effect for April 16 due to the anticipated arrival of additional CMEs.
Large coronal hole facing Earth, G2 – Moderate geomagnetic storm
Earth is currently experiencing heightened solar wind conditions and geomagnetic storming due to the passage of a co-rotating interaction region (CIR) ahead of a high-speed stream from a large coronal hole in the southern hemisphere.
Impulsive X1.3 solar flare erupts from unnumbered region on the Sun’s SE limb
A major solar flare measuring X1.3 erupted from an unnumbered active region on the Sun’s SE limb at 09:43 UTC on Thursday, September 12, 2024. The event started at 09:31 and ended at 09:51 UTC.
Strong positive polarity CH HSS sparks G2 – Moderate geomagnetic storm
A strong positive polarity coronal hole high speed stream (CH HSS) sparked a G2 – Moderate geomagnetic storm on September 4, 2022. G1-Minor storms continued into September 5. An additional enhancement is possible by midday today due to the arrival of CME produced on September 2.
Positive polarity coronal hole high speed solar stream sparks G2 – Moderate geomagnetic storming
Earth is under the influence of multiple positive polarity coronal hole high speed solar streams (CH HSS), triggering G2 – Moderate geomagnetic storming.
CME hits Earth, sparking G2 – Moderate geomagnetic storm
A coronal mass ejection (CME) produced by a large filament eruption at 05:21 UTC on April 11, 2022 reached Earth around midnight UTC on April 14, sparking G2 – Moderate geomagnetic storm.
CME hits Earth sparking G2 – Moderate geomagnetic storm
A coronal mass ejection (CME) produced by the long-duration C2 solar flare on March 10/11, 2022, hit Earth early March 13, sparking G2 – Moderate geomagnetic storming. Disturbed conditions are expected to continue into March 14 and 15. The CME started around 18:00…
G2 – Moderate geomagnetic storm watch in effect
A G2 – Moderate geomagnetic storm watch is in effect for February 2, 2022, after a long-duration M1.1 solar flare produced an asymmetric, full-halo coronal mass ejection (CME) at 23:32 UTC on January 29. The CME is expected to reach Earth late February 1 or early…
CH HSS sparks G2 – Moderate geomagnetic storm
Our planet entered a stream of fast-moving solar wind on January 18, 2022, sparking G2 – Moderate geomagnetic storm. A slightly enhanced solar wind environment is anticipated today as CH HSS effects taper, followed by a minor enhancement due to glancing blow effects…