Joint USAF/NOAA Report of Solar and Geophysical Activity 30 Mar 2007
Product: Report of Solar-Geophysical Activity
Issued: 2007 Mar 30 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 089 Issued at 2200Z on 30 Mar 2007
IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. No flares 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 during the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet tomorrow (31 March). An increase to unsettled to active with a chance for minor storm periods is expected, beginning late on the second day (1 April) and continuing through the third day (2 April). The increase is expected in response to a favorably positioned coronal hole.
III. Event Probabilities 31 Mar-02 Apr
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 30 Mar 074
- Predicted 31 Mar-02 Apr 074/074/074
- 90 Day Mean 30 Mar 078
V. Geomagnetic A Indices
- Observed Afr/Ap 29 Mar 002/002
- Estimated Afr/Ap 30 Mar 005/005
- Predicted Afr/Ap 31 Mar-02 Apr 005/005-007/010-015/025
VI. Geomagnetic Activity Probabilities 31 Mar-02 Apr
A. Middle Latitudes
- Active 15/20/30
- Minor storm 05/10/20
- Major-severe storm 01/01/05
B. High Latitudes
- Active 15/25/35
- Minor storm 05/15/25
- Major-severe storm 01/05/10