Joint USAF/NOAA Report of Solar and Geophysical Activity 05 Apr 2009
Product: Report of Solar-Geophysical Activity Issued: 2009 Apr 05 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 095 Issued at 2200Z on 05 Apr 2009
IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity was very low. No flares occurred during the past 24 hours and the solar disk continues to be without sunspots.
IB. Solar Activity Forecast: Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the first and second days (6-7 April). Quiet conditions will continue for most of the third day (8 April). However, an increase to unsettled levels is expected late on the third day or early on the fourth day in response to a favorably positioned coronal hole.
III. Event Probabilities 06 Apr-08 Apr
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 05 Apr 070
- Predicted 06 Apr-08 Apr 070/070/070
- 90 Day Mean 05 Apr 070
V. Geomagnetic A Indices
- Observed Afr/Ap 04 Apr 000/002
- Estimated Afr/Ap 05 Apr 005/005
- Predicted Afr/Ap 06 Apr-08 Apr 005/005-005/005-005/008
VI. Geomagnetic Activity Probabilities 06 Apr-08 Apr
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
