SURPRISE GEOMAGNETIC STORM: A minor G1-class geomagnetic storm broke out around midnight (UT) on June 25-26. Forecasters aren’t sure why. The prime suspect is an unexpected CME embedded in the solar wind. So far no auroras have been reported from the 6 hour storm. https://spaceweather.com/
THE SOLAR WIND IS HERE: A stream of solar wind flowing ~600 km/s from a hole in the sun’s atmosphere is buffeting Earth’s magnetosphere today. NOAA forecasters say there is a slight chance of G1-class geomagnetic storms while Earth is inside the stream. https://spaceweather.com/
Today, there are nine sunspot groups on the solar disk, the most in years. If only one explodes, Earth could experience a solar storm. The most likely would be sunspot AR3031, which has an unstable ‘beta-gamma’ magnetic field that harbors energy for M-class solar flares. https://spaceweather.com/
MAGNIFICENT CME: Earlier today, an unusually slow solar flare hurled a magnificent CME into space. The explosion and its afterglow lasted nearly 8 hours. The CME could sideswipe Earth’s magnetosphere later this week, producing minor geomagnetic storms. Full story @ Spaceweather.com.
GEOMAGNETIC STORM WATCH: Minor G1-class geomagnetic storms are possible today, May 28th, when a CME is expected to sideswipe Earth’s magnetic field. The solar storm cloud was hurled into space three days ago by an unstable magnetic filament on the sun. High-latitude auroras are possible this weekend. https://spaceweather.com/
HE FIRST SUNQUAKE OF SOLAR CYCLE 25: This week, the sun trembled. On May 10th, an X1.5-class solar flare produced the first sunquake of Solar Cycle 25. It was like an earthquake albeit orders of magnitude more powerful. See the movie on today’s edition of Spaceweather.com.
X-CLASS SOLAR FLARE: An unusually-magnetized sunspot exploded on May 10th, producing an intense X1.5-class solar flare. Shortwave radio signals were blacked out around the Atlantic Ocean for as much as an hour, and now there’s a chance a CME is heading our way. https://spaceweather.com/
A magnetic filament on the sun erupted May 7th, hurling a CME into space. NOAA analysts say it might deliver a glancing blow to Earth’s magnetic field on May 10th.This is a low confidence forecast. Minor geomagnetic storms are possible if/when the CME arrives. https://spaceweather.com
GET READY FOR MORE FLARES: A new and potentially very active sunspot group emerged today. It announced itself with an X1-class solar flare, which caused a strong shortwave radio blackout over the Atlantic Ocean and Europe. More flares may be in the offing as the sunspot turns toward Earth. Developing story @ Spaceweather.com.