[gse-aa] Auroral Alert

[Charles Deehr]

There was a solar event facing Earth on the 22nd of October.  We estimate
that the shock should arrive at Earth around 1900 Greenwich Mean Time on the
24th.  If it is on time, that will be Sunday evening in Europe and the USA.
If it is early, it will be Saturday night in Alaska and Russia.  

It is difficult to judge the extent of the aurora, but the shock will arrive
simultaneously with a fast stream in the solar wind, so we would expect that
the aurora will be visible in Southern Scandinavia, Northern Europe,
Northern US, (perhaps in the northern sky from Oregon, Illinois,
Pennsylvania, and points north).

Check the northern sky anytime during the night, but mostly around midnight
on Saturday and Sunday nights.

Dr. Charles Deehr, Prof. Emer. Phys.     Ph. 907 474 7473 Fax 907 474 7290
email cdeehr at gi.alaska.edu
The Geophysical Institute                     
University of Alaska Fairbanks
903 Koyukuk Ave N             
Fairbanks, Alaska  99775-7320