A minor geomagnetic storm erupted earlier today, Sept. 28th, causing beautiful Wednesday-morning auroras in Canada and some northern-tier US states. These are, essentially, aftershocks of the severe storm on Sept. 26th. More reverberations are possible tonight.
A severe geomagnetic storm (Kp=7 to 8) that began yesterday when a CME hit Earth's magnetic field is subsiding.At the peak of the disturbance, auroras were sighted around both poles and in more than six US states including Michigan, New York, South Dakota, Maine, Ma
A strong-to-severe geomagnetic storm is in progress following the impact of a coronal mass ejection (CME) at approximately 12:15 UT on Sept. 26th. The Goddard Space Weather Lab reports a “strong compression of Earth’s magnetosphere. Simulations indicate that solar
High-latitude sky watchers should be alert for auroras. A strong (Kp=7) geomagnetic storm is in progress. Earth's magnetic field has been strongly disturbed since approximately 1300 UT on Sept. 26th when a CME hit our planet. The impact strongly compressed the…
Sunspot 1302 is back at it again, this time producing an X1.9 Solar Flare at 09:40 UTC. This major event resulted in an R3 level radio blackout as well as producing a 10.7cm Radio Burst (TenFlare). A fast moving type II sweep frequency event is reported also. As this
Earth-orbiting satellites have detected a long-duration X1.4-class solar fare coming from a new sunspot on the sun’s eastern limb. The blast, which peaked at 1100 UT, produced a significant CME, but the cloud is not Earth-directed.
A coronal mass ejection (CME) is heading toward Earth and it could deliver a glancing blow to our planet’s magnetic field on Sept. 22th around 23:00 UT. There are no large coronal holes on the Earth-facing side of the sun. High-latitude sky watchers should be alert for
On Sept. 19th, the STEREO-SOHO fleet of spacecraft surrounding the sun detected six coronal mass ejections (CMEs). Two of the clouds rapidly dissipated. The remaining four, however, are still intact and billowing through the inner solar system. Click to view a movie of
As predicted by analysts at the Goddard Space Weather Lab, a coronal mass ejection (CME) hit Earth's magnetic field at ~03:30 UT on Sept 17th. The impact sparked a moderate geomagnetic storm (in progress) and auroras around the Arctic Circle. High-latitude sky watch
As predicted by analysts at the Goddard Space Weather Lab, a coronal mass ejection (CME) hit Earth’s magnetic field at ~03:30 UT on Sept 17th. The impact was not strong. Nevertheless, the arrival of the CME could spark geomagnetic activity around the Arctic Circle.
