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OK0NAG > SOLAR 18.04.08 23:42l 68 Lines 2589 Bytes #999 (0) @ EU
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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Fri, 18 Apr 2008 22:01:39 -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: 2008 Apr 18 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 109 Issued at 2200Z on 18 Apr 2008
IA. Analysis of Solar Active Regions and Activity from 17/2100Z
to 18/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is expected to remain
very low.
IIA. Geophysical Activity Summary 17/2100Z to 18/2100Z:
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to remain mostly quiet for days 1 and 2 (19-20 April)
becming mostly unsettled by day 3 (21 April) as a recurrent coronal
hole begins to rotate into a geoeffective position.
III. Event Probabilities 19 Apr-21 Apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 18 Apr 070
Predicted 19 Apr-21 Apr 070/075/075
90 Day Mean 18 Apr 071
V. Geomagnetic A Indices
Observed Afr/Ap 17 Apr 007/008
Estimated Afr/Ap 18 Apr 007/007
Predicted Afr/Ap 19 Apr-21 Apr 005/005-005/005-008/015
VI. Geomagnetic Activity Probabilities 19 Apr-21 Apr
A. Middle Latitudes
Active 10/10/20
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 10/10/40
Minor storm 05/05/10
Major-severe storm 01/01/05
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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