Joint USAF/NOAA Report of Solar and Geophysical Activity 19 Sep 2008
Product: Report of Solar-Geophysical Activity
Issued: 2008 Sep 19 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 263 Issued at 2200Z on 19 Sep 2008
IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. The visible solar disk remains spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field was mostly quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next three days (20-22 September).
III. Event Probabilities 20 Sep-22 Sep
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 19 Sep 068
- Predicted 20 Sep-22 Sep 067/067/067
- 90 Day Mean 19 Sep 066
V. Geomagnetic A Indices
- Observed Afr/Ap 18 Sep 005/009
- Estimated Afr/Ap 19 Sep 005/005
- Predicted Afr/Ap 20 Sep-22 Sep 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 20 Sep-22 Sep
A. Middle Latitudes
- Active 10/10/10
- Minor storm 01/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 10/10/10
- Minor storm 01/01/01
- Major-severe storm 01/01/01