:Product: 0524RSGA.txt
:Issued: 2011 May 24 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 144 Issued at 2200Z on 24 May 2011
IA.  Analysis of Solar Active Regions and Activity from  23/2100Z
to 24/2100Z:  Solar activity was very low.  The two spotted regions
on the visible disk were magnetically simple and quiescent.
IB.  Solar Activity Forecast:  Solar activity is expected to remain
very low for the forecast period (25 - 27 May).
IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z:
The goemagnetic field was predominantly quiet, with one unsettled
period early in the day.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be mostly quiet for days 1 and 2 (25-26 May), becoming
unsettled on day 3 (27 May) with the return of a coronal hole high
speed stream.
III.  Event Probabilities 25 May-27 May
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           24 May 082
Predicted   25 May-27 May  082/082/082
90 Day Mean        24 May 108
V.  Geomagnetic A Indices
Observed Afr/Ap 23 May  004/004
Estimated Afr/Ap 24 May  005/006
Predicted Afr/Ap 25 May-27 May  005/007-005/008-010/012
VI.  Geomagnetic Activity Probabilities 25 May-27 May
A.  Middle Latitudes
Active                10/20/30
Minor storm           05/05/10
Major-severe storm    01/01/05
B.  High Latitudes
Active                15/30/40
Minor storm           05/10/20
Major-severe storm    01/05/10