Joint USAF/NOAA Report of Solar and Geophysical Activity 30 Jul 2008
Product: Report of Solar-Geophysical Activity
Issued: 2008 Jul 30 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 212 Issued at 2200Z on 30 Jul 2008
IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. The visible disk remains spotless. No flare activity occurred during the past 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was mostly quiet. A single period of unsettled conditions occurred from 0300-0600Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on day one (31 July), quiet to unsettled on day two (1 Aug) and returning to quiet on day three (2 Aug).
III. Event Probabilities 31 Jul-02 Aug
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 30 Jul 067
- Predicted 31 Jul-02 Aug 066/066/066
- 90 Day Mean 30 Jul 067
V. Geomagnetic A Indices
- Observed Afr/Ap 29 Jul 002/003
- Estimated Afr/Ap 30 Jul 005/005
- Predicted Afr/Ap 31 Jul-02 Aug 005/005-007/008-005/005
VI. Geomagnetic Activity Probabilities 31 Jul-02 Aug
A. Middle Latitudes
- Active 05/10/05
- Minor storm 01/01/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 10/15/10
- Minor storm 01/01/01
- Major-severe storm 01/01/01