Joint USAF/NOAA Report of Solar and Geophysical Activity 08 Aug 2008
Product: Report of Solar-Geophysical Activity
Issued: 2008 Aug 08 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 221 Issued at 2200Z on 08 Aug 2008
IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was very low. The visible solar disk was spotless. No flares were observed in the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be predominately unsettled with periods of active conditions possible for 09 August due to a recurrent coronal hole high speed stream. Mostly unsettled levels are expected for 10 August, with quiet to unsettled conditions for 11 August.
III. Event Probabilities 09 Aug-11 Aug
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF green
IV. Penticton 10.7 cm Flux
- Observed 08 Aug 066
- Predicted 09 Aug-11 Aug 066/066/066
- 90 Day Mean 08 Aug 067
V. Geomagnetic A Indices
- Observed Afr/Ap 07 Aug 003/004
- Estimated Afr/Ap 08 Aug 005/008
- Predicted Afr/Ap 09 Aug-11 Aug 015/015-010/010-008/008
VI. Geomagnetic Activity Probabilities 09 Aug-11 Aug
A. Middle Latitudes
- Active 35/20/10
- Minor storm 05/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 40/25/20
- Minor storm 05/05/05
- Major-severe storm 01/01/01