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----- Original Message -----
From: <daemon@xxxxxxxxxxxx>
To: <advisory-list-send@xxxxxxxxxxxxxxxxx>
Sent: Thursday, March 29, 2001 12:07 PM
Subject: Space-Weather-Advisory
>
> Official Space Weather Advisory issued by NOAA Space Environment Center
> Boulder, Colorado, USA
>
> SPACE WEATHER BULLETIN #01- 2
> 2001 March 29 at 10:07 a.m. MST (2001 March 29 1707 UT)
>
> **** MAJOR SOLAR FLARE ERUPTS, MORE POSSIBLE ****
>
> Space weather increased to strong levels due to a major solar flare
> eruption. A category R3 (strong) radio blackout occurred today at 3:15
> a.m. MST (2001 March 29 1015 UTC). The blackout was caused by a major
> solar flare eruption from a very large, complex sunspot group, referred
> to by NOAA space weather forecasters as Region 9393. Category R3 radio
> blackouts adversely affect high-frequency radio communications and
> low-frequency navigation signals on the sunlit side of Earth. As a
> result this morning's flare, a category S1 (minor) solar radiation storm
>
> began at 9:35 a.m. MST (2001 March 29 1635 UTC). Category S1 solar
> radiation storms will adversely affect high frequency radio
> communications in the polar regions. Forecasters also expect
> geomagnetic storms reaching category G1 (minor) to G2 (moderate) to
> occur during March 30 - April 1 as a result of recent Earth-directed
> coronal mass ejections. Power systems, spacecraft operations, and
> high-frequency radio communications are adversely affected by
> geomagnetic storms. In addition, aurora may be visible along the
> northern tier of the U.S. this weekend. NOAA forecasters expect that
> Region 9393 will produce more major flares before it rotates to the far
> side of the Sun on April 5.
>
> Data used to provide space weather services are contributed by NOAA,
> USAF, NASA, NSF, USGS, the International Space Environment Services
> and other observatories, universities, and institutions. More
> information is available at SEC's Web site http://sec.noaa.gov or
> (303) 497-5127. The NOAA Public Affairs contact is Barbara McGehan
> at bmcgehan@xxxxxxxxxxxxxxxx or (303) 497-6288.
>
>
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