RAW Story reports:
“A pair of steamy explosions on the Sun’s surface in recent days is sparking the biggest radiation and geomagnetic storm the Earth has experienced in five years, space weather experts said Wednesday.
The full brunt of the storm is expected to hit Earth early Thursday US time and last through Friday, potentially disrupting power grids, GPS systems, satellites, and forcing airplanes to change their routes around the polar regions.”
WWLP (a local news source) reports:
“The sun erupted Tuesday evening, and the effects should start smacking Earth around 7 a.m. EST Thursday, according to forecasters at the federal government’s Space Weather Prediction Center. They say the flare is growing as it speeds outward from the sun.
“It’s hitting us right in the nose,” said Joe Kunches, a scientist for the National Oceanic and Atmospheric Administration. He called it the sun’s version of “Super Tuesday.”
The solar storm is likely to last through Friday morning, but the region that erupted can still send more blasts our way, Kunches said. He said another set of active sunspots is ready to aim at Earth right after this.”
NOAA NWS Space Weather Prediction Center is reporting:
The CME associated with the recent R3 (Strong) Radio Blackout event at 0024 UTC March 7 (7:24 p.m. EST March 6) is forecast to pass ACE early morning UTC on March 8 (start of day EST March
. Geomagnetic storm periods reaching the G3 (Strong) level are likely from that CME; the most northern states in the “Lower 48″ should have a chance to see the aurora. Finally, a Solar Radiation Storm is also in progress and levels are currently above the S3 (Strong) threshold.
The image below depicts output from a WSA-Enlil model run covering the CME expected on March 8. The direction and velocity of the CME are inputs to this model. This model then describes how that CME will interact with the background solar wind, giving the forecasters better guidance on expected arrival times (arrival being the discontinuity near the yellow vertical line). In the disk in the upper left, the Sun is the yellow dot in the center, the Earth is the light green dot to the right of that, and the perspective is that of looking directly down on the North Poles of Sun and Earth. A dynamic version of this model run and additional model information is available at: http://www.swpc.noaa.gov/wsa-enlil/cme-based/
The source of this activity, Region 1429, remains potent and subsequent activity is certainly possible. For more information on the NOAA Space Weather Scales covering the types of space weather and the associated impacts, please see: http://www.swpc.noaa.gov/NOAAscales/