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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Mon, 7 Apr 2008 22:02:04 -0000
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Subject: Report of Solar Geophysical Activity (RSGA)
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:Product: Report of Solar-Geophysical Activity
:Issued: 2008 Apr 07 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 098 Issued at 2200Z on 07 Apr 2008
IA. Analysis of Solar Active Regions and Activity from 06/2100Z
to 07/2100Z: Solar activity was very low. No flares were observed
during the past 24 hours. No new regions were numbered.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z:
The geomagnetic field ranged from quiet to active conditions due to
the continued effects of the high speed stream. Solar wind
measurements from the ACE satellite ranged from 546 km/sec to 677
km/sec, and Bz varied from -4.9 nT to 5.1 nT throughout the period.
The 2 MeV electron flux at geosynchronous orbit reached high levels
during the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic filed is
expected to be quiet to unsettled with isolated active periods for
the next three days (08-10 April). Isolated minor storm conditions
are possible at high latitudes due the continued effects of the
coronal hole.
III. Event Probabilities 08 Apr-10 Apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 07 Apr 069
Predicted 08 Apr-10 Apr 070/070/070
90 Day Mean 07 Apr 072
V. Geomagnetic A Indices
Observed Afr/Ap 06 Apr 011/018
Estimated Afr/Ap 07 Apr 006/012
Predicted Afr/Ap 08 Apr-10 Apr 010/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 08 Apr-10 Apr
A. Middle Latitudes
Active 25/25/25
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 35/35/35
Minor storm 10/10/10
Major-severe storm 05/05/05
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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