Joint USAF/NOAA Report of Solar and Geophysical Activity 22 Aug 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Aug 22 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 234 Issued at 2200Z on 22 Aug 2007
IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is expected to be very low to low.
IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field has been quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet 23 – 24 August and quiet to unsettled 25 August.
III. Event Probabilities 23 Aug-25 Aug
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 22 Aug 070
- Predicted 23 Aug-25 Aug 070/070/070
- 90 Day Mean 22 Aug 071
V. Geomagnetic A Indices
- Observed Afr/Ap 21 Aug 003/004
- Estimated Afr/Ap 22 Aug 004/005
- Predicted Afr/Ap 23 Aug-25 Aug 004/005-002/005-010/015
VI. Geomagnetic Activity Probabilities 23 Aug-25 Aug
A. Middle Latitudes
- Active 15/15/25
- Minor storm 01/01/10
- Major-severe storm 01/01/05
B. High Latitudes
- Active 20/20/30
- Minor storm 01/01/15
- Major-severe storm 01/01/10