Joint USAF/NOAA Report of Solar and Geophysical Activity 12 Aug 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Aug 12 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 224 Issued at 2200Z on 12 Aug 2007
IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity was very low. No significant activity was observed during the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next three days (13 – 15 August).
III. Event Probabilities 13 Aug-15 Aug
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 12 Aug 068
- Predicted 13 Aug-15 Aug 070/070/070
- 90 Day Mean 12 Aug 072
V. Geomagnetic A Indices
- Observed Afr/Ap 11 Aug 007/012
- Estimated Afr/Ap 12 Aug 005/005
- Predicted Afr/Ap 13 Aug-15 Aug 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 13 Aug-15 Aug
A. Middle Latitudes
- Active 10/10/10
- Minor storm 01/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 15/15/15
- Minor storm 01/01/01
- Major-severe storm 01/01/01