Report of Solar-Geophysical Activity
Issued: 2005 Aug 09 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment
Center and the U.S. Air Force.
Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 221 Issued
at 2200Z on 09 Aug 2005 IA. Analysis of Solar Active Regions and Activity from
08/2100Z to 09/2100Z: Solar activity has been very low. The only activity
observed during the last 24 hours were low level B-class flares.
Region 792 (N10W82) and 794 (S13W48) are both indicating a decay phase. No new
sunspot regions were numbered today.
IB. Solar Activity Forecast: Solar activity is expected to be very low with a
chance for an isolated C-class flare.
IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field was at quiet to unsettled levels. The greater than
2 MeV electron flux at geosynchronous orbit was at high levels.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be
at quiet to unsettled levels.
III. Event Probabilities 10 Aug-12 Aug
Class M 10/10/05
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 09 Aug 083
Predicted 10 Aug-12 Aug 080/075/075
90 Day Mean 09 Aug 095
V. Geomagnetic A Indices
Observed Afr/Ap 08 Aug 006/008
Estimated Afr/Ap 09 Aug 008/010
Predicted Afr/Ap 10 Aug-12 Aug 010/010-008/008-008/008 VI. Geomagnetic Activity
Probabilities 10 Aug-12 Aug A. Middle Latitudes
Active 20/15/15
Minor storm 10/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 25/20/20
Minor storm 10/10/10
Major-severe storm 05/01/01