- Status Report
- August 7, 2022
Joint USAF/NOAA Report of Solar and Geophysical Activity 30 May 2008
Product: Report of Solar-Geophysical Activity
Issued: 2008 May 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 151 Issued at 2200Z on 30 May 2008
IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was at very low levels. The visible disk remained spotless.
IB. Solar Activity Forecast: Solar activity is expected to remain at very low levels.
IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was at quiet to unsettled levels. Solar wind velocities peaked at 665 km/s at about 30/0400Z, and remained elevated between 550 – 600 km/s for the balance of the period.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels, with a chance for isolated active periods, during days one and two (31 May – 01 Jun). By day three (02 Jun), the geomagnetic field is expected to return to mostly quiet levels.
III. Event Probabilities 31 May-02 Jun
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 30 May 067
- Predicted 31 May-02 Jun 068/068/068
- 90 Day Mean 30 May 071
V. Geomagnetic A Indices
- Observed Afr/Ap 29 May 007/009
- Estimated Afr/Ap 30 May 008/008
- Predicted Afr/Ap 31 May-02 Jun 008/010-008/010-005/008
VI. Geomagnetic Activity Probabilities 31 May-02 Jun
A. Middle Latitudes
- Active 15/15/10
- Minor storm 05/05/01
- Major-severe storm 01/01/01
B. High Latitudes
- Active 30/30/25
- Minor storm 10/10/05
- Major-severe storm 05/05/05