CME impacts Earth, sparking G3 – Strong geomagnetic storm

A coronal mass ejection (CME) produced by a filament eruption around 10:00 UTC on May 9,…

Incoming CME, impact expected early May 12

Two coronal mass ejections (CMEs) with Earth-directed components were produced on the Sun on May 9,…

M3.9 solar flare erupts from Active Region 2822

A strong solar flare measuring M3.9 at its peak erupted from Active Region 2822 at 19:04…

G2 – Moderate geomagnetic storm watch in effect for April 25

A partial halo Coronal Mass Ejection (CME) produced by the C3.8 solar flare from Region 2816…

C3.8 solar flare erupts from geoeffective Region 2816, CME produced

A C3.8 solar flare erupted from Active Region 2816 at 04:35 UTC on April 22, 2021,…

M1.1 solar flare erupts from AR 2816, produces coronal mass ejection (CME)

A moderately strong solar flare measuring M1.1 at its peak erupted at 23:42 UTC on April…

Solar wind parameters indicate the arrival of a slow-moving CME

Solar wind parameters over the past 12 hours indicated the arrival of a slow-moving Coronal Mass…

Negative polarity CH HSS sparks G1 – Minor geomagnetic storm and auroras in the lower 48

Earth is under the influence of a negative polarity coronal hole high speed stream, sparking G1…

Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Earth is under the influence of a negative polarity coronal hole high speed stream (CH HSS)…

Filament eruption produces partial-halo CME, glancing blow expected

A solar filament eruption took place shortly before 12:00 UTC on February 20, 2021, producing a…