Joint USAF/NOAA Report of Solar and Geophysical Activity 07 Sep 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Sep 07 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 250 Issued at 2200Z on 07 Sep 2007
IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: 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 06/2100Z to 07/2100Z: The geomagnetic field ranged from quiet to active with an isolated minor storm period observed at middle latitudes.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the next three days (08 – 10 September).
III. Event Probabilities 08 Sep-10 Sep
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 07 Sep 067
- Predicted 08 Sep-10 Sep 067/067/067
- 90 Day Mean 07 Sep 070
V. Geomagnetic A Indices
- Observed Afr/Ap 06 Sep 008/013
- Estimated Afr/Ap 07 Sep 010/012
- Predicted Afr/Ap 08 Sep-10 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 08 Sep-10 Sep
A. Middle Latitudes
- Active 10/10/10
- Minor storm 05/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 15/10/10
- Minor storm 05/05/05
- Major-severe storm 01/01/01