[South Florida DX Association] Space-Weather-Outlook

Bill Marx bmarx at bellsouth.net
Tue Jan 25 18:59:03 EST 2005


 Official Space Weather Advisory issued by NOAA Space Environment Center
> Boulder, Colorado, USA
> 
> SPACE WEATHER ADVISORY OUTLOOK #05- 4
> 2005 January 25 at 02:22 p.m. MST (2005 January 25 2122 UTC)
> 
> **** SPACE WEATHER OUTLOOK ****
> 
> Summary For January 17-23
> A series of major flares from Region 720 produced numerous minor to
> strong radio blackouts and other related effects during the summary
> period.  Category R1 (minor) radio blackouts occurred on 17 - 19, 21,
> and 23 January; category R2 (moderate) radio blackouts occurred on 19
> January; and category R3 (strong) radio blackouts occurred on 17, 19,
> and 20 January, all due to significant solar flare activity from active
> sunspot Region 720.  A category S3 (strong) solar radiation storm began
> on 17 January.  This radiation storm declined to S1 (minor) levels by
> early on 20 January, when a second category S3 solar radiation storm
> began.  This solar radiation storm ended on 22 January and was the most
> energetic solar radiation storm since October 1989.  Category G1
> (minor) geomagnetic storms occurred on 17 - 18 January; category G2
> (moderate) geomagnetic storms occurred on 18 - 19 and 21 - 22 January;
> category G3 (strong) geomagnetic storms occurred on 17 - 19 January;
> and category G4 (severe) geomagnetic storms occurred on 21 January, all
> due to clouds of magnetic material from solar flares on the Sun that
> impacted Earth.
> 
> Outlook For January 26-February 1
> The large active region that produced last week's solar storms has
> rotated around the west limb of the Sun and is no longer visible. 
> Therefore, there is only a chance for category G1 (minor) geomagnetic
> storms due to high speed solar winds from a coronal hole on the Sun.




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