Joint USAF/NOAA Report of Solar and Geophysical Activity 26 Aug 2008
Product: Report of Solar-Geophysical Activity
Issued: 2008 Aug 26 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 239 Issued at 2200Z on 26 Aug 2008
IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity was very low. The visible disk remains spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels today.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on day one (27 August) and mostly quiet on days two and three (28-29 August).
III. Event Probabilities 27 Aug-29 Aug
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 26 Aug 067
- Predicted 27 Aug-29 Aug 067/067/067
- 90 Day Mean 26 Aug 066
V. Geomagnetic A Indices
- Observed Afr/Ap 25 Aug 001/002
- Estimated Afr/Ap 26 Aug 005/005
- Predicted Afr/Ap 27 Aug-29 Aug 005/005-007/007-007/007
VI. Geomagnetic Activity Probabilities 27 Aug-29 Aug
A. Middle Latitudes
- Active 01/05/05
- Minor storm 01/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 05/15/15
- Minor storm 01/01/01
- Major-severe storm 01/01/01