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OK0NAG > SOLAR 22.02.09 00:07l 73 Lines 2879 Bytes #999 (0) @ EU
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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Sat, 21 Feb 2009 22:02:31 -0000
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Subject: Report of Solar Geophysical Activity (RSGA)
X-asg-orig-subj: Report of Solar Geophysical Activity (RSGA)
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:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Feb 21 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 052 Issued at 2200Z on 21 Feb 2009
IA. Analysis of Solar Active Regions and Activity from 20/2100Z
to 21/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours. The visible solar disk remains spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field was at quiet levels with one period of
unsettled conditions at mid-latitude. Solar wind speeds have
increased steadily through the period from around 340 km/s to 430
km/s.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet to unsettled levels with isolated active
conditions on 22 February due to a recurrent coronal hole.
Predominately quiet conditions are expected on 23-24 February as the
coronal hole high speed stream subsides.
III. Event Probabilities 22 Feb-24 Feb
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 21 Feb 071
Predicted 22 Feb-24 Feb 070/070/070
90 Day Mean 21 Feb 070
V. Geomagnetic A Indices
Observed Afr/Ap 20 Feb 003/003
Estimated Afr/Ap 21 Feb 003/007
Predicted Afr/Ap 22 Feb-24 Feb 008/009-005/005-005/005
VI. Geomagnetic Activity Probabilities 22 Feb-24 Feb
A. Middle Latitudes
Active 15/05/05
Minor storm 05/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 20/10/10
Minor storm 10/01/01
Major-severe storm 01/01/01
Thank you for using the Product Subscription Service. If you would like
to remove a product subscription or update the personal information in
your account, go to: https://pss.swpc.noaa.gov. For problems, contact:
mailto:pss.help@noaa.gov.
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