AURORA SHUD BE VISIBLE OVER ENTIRE US TONITE (WED) [Fwd: [gse-aa]A Major Solar Flare]

[maury <maury@webtexas.com>]

[Scroll to bottom for US forecast - Maury]



-------- Original Message --------

Subject: [gse-aa] A Major Solar Flare

Date: Tue, 28 Oct 2003 15:59:23 -0900

From: cdeehr@gi.alaska.edu

To: gse-aa@dogbert.gi.alaska.edu



A major solar event occurred at 1102 GMT on Oct 28th, facing the

Earth.	It was three hours long and left the sun at 1200 to 2000 km

per second. The shock should arrive at Earth as early as the

afternoon of the 29th in Europe (4 PM GMT)and as late as 2 AM GMT on

the 30th. 



Europeans will be able to see the aurora probably as far south as

Southern France, since it should be over Paris by midnight.



It will be night in Australia and New Zealand if it arrives at 1100

GMT.  This flare is probably large enough to approach mainland

Australia and be visible from the North Island in New Zealand, so it

may be worth staying up to see.



Russia, north of 50 deg latitude will be well placed on the night of

the 29/30 to see the aurora from this flare.



Observers in the USA should not be discouraged that it will arrive

during the day of the 29th.  This flare is of a magnitude that should

lead to aurora visible over the entire continental US on the evening

of the 29th.  It may be on the northern horizon for those in Florida,

Texas, and Southern California, but it should be visible.



The best viewing is from a dark area, even your back yard, with a

view to the northern horizon.  Look out at the sky every half hour. 

Typically, an intensification occurs every two hours, lasting about

1/2 hour.  The maximum activity is usually around 11pm to midnight.



Prediction by [Chuck Deehr]

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