Joint USAF/NOAA Report of Solar and Geophysical Activity 08 May 2007
Product: Report of Solar-Geophysical Activity
Issued: 2007 May 08 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 128 Issued at 2200Z on 08 May 2007
IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been very low. Region 953 has rotated off the visible disk.
IB. Solar Activity Forecast: Solar activity is expected to be very low to low.
IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has ranged from quiet to active.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled on 09 May. Isolated active periods remain possible due to a geoeffective, recurrent coronal hole high speed stream. The geomagnetic field is expected to be predominately quiet on 10 – 11 May.
III. Event Probabilities 09 May-11 May
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 08 May 073
- Predicted 09 May-11 May 070/070/070
- 90 Day Mean 08 May 074
V. Geomagnetic A Indices
- Observed Afr/Ap 07 May 011/018
- Estimated Afr/Ap 08 May 012/015
- Predicted Afr/Ap 09 May-11 May 008/008-004/005-004/005
VI. Geomagnetic Activity Probabilities 09 May-11 May
A. Middle Latitudes
- Active 25/15/15
- Minor storm 15/05/05
- Major-severe storm 01/01/01
B. High Latitudes
- Active 35/25/25
- Minor storm 25/15/15
- Major-severe storm 05/01/01