Joint USAF/NOAA Report of Solar and Geophysical Activity 30 Jan 2008

Product: Report of Solar-Geophysical Activity
Issued: 2008 Jan 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 030 Issued at 2200Z on 30 Jan 2008

IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. Region 982 (S09E40) has grown slightly in white light area coverage and has a magnetic beta configuration.

IB. Solar Activity Forecast: Solar activty is expected to be very low.

IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for 31 January. Predominately unsettled with isolated active conditions are expected for 01-02 February due to the influence of a recurrent coronal hole high speed stream.

III. Event Probabilities 31 Jan-02 Feb

• Class M 01/01/01
• Class X 01/01/01
• Proton 01/01/01
• PCAF Green

IV. Penticton 10.7 cm Flux

• Observed 30 Jan 073
• Predicted 31 Jan-02 Feb 075/075/080
• 90 Day Mean 30 Jan 074

V. Geomagnetic A Indices

• Observed Afr/Ap 29 Jan 003/004
• Estimated Afr/Ap 30 Jan 003/005
• Predicted Afr/Ap 31 Jan-02 Feb 005/005-008/012-008/010

VI. Geomagnetic Activity Probabilities 31 Jan-02 Feb

A. Middle Latitudes

• Active 10/15/15
• Minor storm 05/10/10
• Major-severe storm 01/01/01

B. High Latitudes

• Active 10/20/20
• Minor storm 05/15/15
• Major-severe storm 01/05/05