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OK0NAG > SOLAR 06.05.08 23:58l 75 Lines 3065 Bytes #999 (0) @ EU
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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Tue, 6 May 2008 22:01:39 -0000
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Subject: Report of Solar Geophysical Activity (RSGA)
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:Product: Report of Solar-Geophysical Activity
:Issued: 2008 May 06 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 127 Issued at 2200Z on 06 May 2008
IA. Analysis of Solar Active Regions and Activity from 05/2100Z
to 06/2100Z: Solar activity was very low. No flares occurred and
the visible disk was spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z:
The geomagnetic field was predominately at quiet to unsettled levels
with isolated active periods observed between 06/0000-0900Z. Solar
wind velocities, as measured at the ACE satellite, decreased to
about 550 km/s beginning at about 06/0800Z from an earlier high of
approximately 650 km/s at 05/2300Z. The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet to unsettled levels with a chance for
isolated active periods on day 1 (07 May) due to the high speed
stream. By days 2 and 3 (08 and 09 May), geomagnetic conditions are
expected to be mostly quiet as the high speed stream abates.
III. Event Probabilities 07 May-09 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 06 May 067
Predicted 07 May-09 May 068/068/068
90 Day Mean 06 May 071
V. Geomagnetic A Indices
Observed Afr/Ap 05 May 008/011
Estimated Afr/Ap 06 May 010/010
Predicted Afr/Ap 07 May-09 May 008/008-005/005-005/008
VI. Geomagnetic Activity Probabilities 07 May-09 May
A. Middle Latitudes
Active 20/10/10
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 30/10/10
Minor storm 10/05/05
Major-severe storm 05/01/01
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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