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Aurora Alert Thread

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Author Topic: Aurora Alert Thread  (Read 3180 times)
Martin Mc Kenna
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« on: October 22, 2010, 05:30:59 pm »

Geophysical Activity Forecast: The geomagnetic field is expected to be generally quiet for the first day (22 October) and about halfway through the second day (23 October). Sometime around mid-day on 23 October and continuing through the third day (24 October), an increase to unsettled levels with a chance for active periods is expected. There is also a chance for isolated storm periods at some locations during this interval. The increase is forecast because of expected effects from a high speed solar wind stream from a favorably positioned coronal hole.
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