Space Weather Alerte

Space Weather Message Code: ALTEF3
Serial Number: 1994
Issue Time: 2013 Mar 21 0657 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1993
Begin Time: 2013 Mar 20 1720 UTC
Yesterday Maximum 2MeV Flux: 1520 pfu
Potential Impacts: Satellite systems may experience significant 

charging resulting in increased risk to satellite systems.

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Space Weather Message Code: WARK04
Serial Number: 2059
Issue Time: 2013 Mar 21 0519 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2058
Valid From: 2013 Mar 21 0047 UTC
Now Valid Until: 2013 Mar 21 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees 

Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and 

Alaska.

Source:

http://www.swpc.noaa.gov/ftpdir/forecasts/ALTS.txt