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originally posted by: Teye22
Is there a possibility that these events do damage to electronics?
Just checking if I should be unplugging stuff when I get home!!
Great find, my eyes will be to the skies tonight and tomorrow night!
(CNN) -- This is not your usual weather forecast. Big storms are brewing. Your umbrella won't help, but you might want to keep a flashlight handy.
These storms are coming from the sun. It's raining down a huge amount of radiation. We're safe, but it could affect power grids, radios and satellites.
Experts say the combined energy from two recent solar events will arrive at Earth on September 13, prompting the Space Weather Prediction Center to issue a strong Geomagnetic Storm Watch.
It has been several years since Earth has had a solar storm of this size coming from sunspots smack in the middle of the sun, said Tom Berger, director of the Space Weather Prediction Center in Boulder, Colorado. The flare on the sun barely hits the "extreme" on forecasters' scale, but with its worst effects missing Earth it is only looking "potentially strong" at most when it arrives at Earth as a solar storm, he said.
New calculations from satellite data show that the worst of the energetic particles streaming from the sun likely will go north or above Earth this time, Berger said late Wednesday.
So while the power grid may see fluctuations because the storm will cause changes in Earth's magnetic field, it won't knock power systems off line, Berger said. It may cause slight disturbances in satellites and radio transmissions but nothing major.
Space weather experts aren't sure yet what this solar storm will do.
"This is a pretty strong solar storm and we just won't know until it gets here" what it will do, said CNN Meteorologist Chad Meyers.
Earth's atmosphere usually protects us humans, but you might want to keep a flashlight handy. Solar storms can knock out power, interfere with GPS and radio communications -- including those on commercial airliners -- and they can damage satellites.
A second CME was observed on 10th September, associated with a more powerful X1-class flare from near the centre of the Sun. This CME is expected to arrive during 12th September, possibly only shortly after the first CME. Due to the combined effects of both CMEs there is a good chance of stormy geomagnetic conditions throughout the next few nights. Assuming clear dark skies, there is an increased chance of seeing the aurora, particularly in northern parts of the UK, after the arrival of the CMEs. The best chance will be Friday night with a possibility of further aurorae on Saturday.
2014-09-11 05:01 UTC A Pair of CMEs G2 (Moderate) geomagnetic storms remain in the forecast for September 12th as a result of the coronal mass ejection (CME) associated with the R1 (Minor) solar flare observed on the 9th. The latest WSA-Enlil model run has the CME associated with yesterday's R3 (Strong) solar flare arriving mid to late day on that same day. A G3 (Strong) Geomagnetic Storm Watch has been issued for September 13th due to the combined influence of these two events with G1 (Minor) storming anticipated to continue into September 14th. In addition, the S1 (Minor) solar radiation storm that is in progress as a result of the eruption yesterday is expected to persist for the next few days. Keep in mind that the forecast periods listed are in Universal Time so aurora watchers in the northern U.S. should be looking for possible activity both Thursday and Friday nights. Stay tuned for updates.
CME IMPACT, BE ALERT FOR AURORAS: The first of two CMEs expected to hit Earth's magnetic field on Sept. 12th has arrived. Solar wind conditions are favorable for geomagnetic activity and possibly full-fledged geomagnetic storming in the hours ahead. High-latitude sky watchers, be alert for auroras and submit your images!
Updated: Radio emissions from shock waves at the leading edge of the CME indicate that the cloud tore through the sun's atmosphere at speeds as high as 3,750 km/s. By the time it left the sun's atmosphere, however, the cloud had decellerated to 1,400 km/s. This makes it a fairly typical CME instead of a "super CME" as the higher speed might suggest.
Even with a downgrade in speed, this CME has the potential to trigger significant geomagnetic activity when it reaches Earth's magnetic field during the mid-to-late hours of Sept. 12th. NOAA forecasters estimate an almost-80% chance of polar geomagnetic storms on Sept. 12-13.