THE SOLAR WIND HAS ARRIVED: As
predicted, a high-speed stream of solar wind has reached Earth and is
buffeting our planet's magnetic field. So far, however, there has been
only mild geomagnetic storming. Magnetic fields inside the solar wind
stream are not well-connected to Earth's magnetic field, and that
mismatch is mitigating its impact.
Despite the
weaker-than-expected storms, sky watchers still saw some beautiful
auroras. Rocky Raybell photographed this display--split down the middle
by a Taurid fireball--from Keller, Washington:
"The auroras were not as strong as I expected," he says,
"but the fireball made up for any shortcomings." Elsewhere in the
United States, auroras were sighted in Wisconsin, Montana, and even Ohio.
More auroras are possible
tonight, especially around the Arctic Circle, as the solar wind
continues to blow. NOAA forecasters estimate an 85% chance of polar
geomagnetic storms on Nov. 3rd, waning to 70% on Nov. 4thhttp://www.spaceweather.com/
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