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Subj: Report of Solar Geophysical Activity (RSGA)
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Date: Thu, 28 Feb 2008 22:01:49 -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 Feb 28 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 059 Issued at 2200Z on 28 Feb 2008
IA. Analysis of Solar Active Regions and Activity from 27/2100Z
to 28/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was unsettled to active with minor storm
conditions at high latitudes. Real-time solar wind observations are
consistent with signatures of a coronal hole high-speed stream. The
velocity, magnetic field and temperature all showed an increase at
about 28/1330Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly unsettled with periods of active conditions
for 29 February, and at unsettled levels for 01 March due to the
influence of the high speed stream. Activity is expected to be
predominately quiet on 02 March as the stream subsides somewhat.
III. Event Probabilities 29 Feb-02 Mar
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 28 Feb 070
Predicted 29 Feb-02 Mar 070/070/070
90 Day Mean 28 Feb 075
V. Geomagnetic A Indices
Observed Afr/Ap 27 Feb 006/012
Estimated Afr/Ap 28 Feb 015/015
Predicted Afr/Ap 29 Feb-02 Mar 012/012-010/010-005/005
VI. Geomagnetic Activity Probabilities 29 Feb-02 Mar
A. Middle Latitudes
Active 20/15/10
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 30/20/10
Minor storm 15/10/05
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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