A G1-class (Kp=5) geomagnetic storm is in progress
High-latitude sky watchers should be alert for auroras. A G1-class (Kp=5) geomagnetic storm is in progress.NOAA Space Weather Scale for Geomagnetic StormsSolar windspeed:
A fast-moving stream of solar wind is buffeting Earth’s magnetic field
A fast-moving stream of solar wind is buffeting Earth’s magnetic field. The combined effect of this stream plus a CME expected to arrive on June 24th has prompted NOAA forecasters to declare a 30% to 35% chance of geomagnetic storms during the next 24 hours.
Geomagnetic storm warning!
A fast-moving stream of solar wind is buffeting Earth’s magnetic field. The combined effect of this stream plus a CME expected to arrive soon has prompted NOAA forecasters to declare a 30% to 35% chance of geomagnetic storms on June 23-24. High-latitude sky watchers
Impact of solstice solar flare is expected on June 24th
A CME propelled toward Earth by the “solstice solar flare” of June 21st may be moving slower than originally thought. Analysts at the GSFC Space Weather Lab have downgraded the cloud’s probable speed from 800 km/s to 650 km/s. Impact is now expected on June 24th at
Incoming solar flare, expecting geomagnetic storm
Magnetic fields above sunspot complex 1236 erupted during the early hours of June 21st, producing a C7-class solar flare and a full-halo CME. The expanding cloud appears to be heading almost directly toward
Sunspot 1236 harbors energy for M-class solar flares
The magnetic field of sunspot 1236 harbors energy for M-class solar flares. NOAA forecasters estimate a 25% chance of such an eruption during the next 24 hrs.
M1.3 solar flare produced, CME expected on June 17
On June 14th around 08:10 UTC, a magnetic filament near the sun's eastern limb became unstable and erupted. The resulting blast hurled a bright and massive CME into space. The expanding cloud was observed by 3 spacecraft: STEREO-A, STEREO-B and SOHO. Researchers…
M2.5 solar flare, CME expected on June 9 and 10
On June 7th at 0641 UT, magnetic fields above sunspot complex 1226-1227 became unstable and erupted. The resulting blast produced an M2-class solar flare, an S1-class radiation storm, and an unbelievable movie:Much of the plasma thrown up by the blast simply fell
Spectacular eruption on the Sun – M2-class solar flare
At 06:41 UTC today the Sun unleashed an M2-class solar flare from arround the sunspot complex 1226-1227. Substantial Coronal Mass Ejection was observed and was visually spectacular. The large cloud of particles mushroomed up and fell back down looking as if it
Geomagnetic storm in progress, gigantic solar prominences
Amateur astronomers around the world are reporting strong activity on the limb of the sun. The prominences on June 4th were gigantic. Prominences are clouds of hot plasma
