Joint USAF/NOAA Report of Solar and Geophysical Activity 29 Jan 2008

Product: Report of Solar-Geophysical Activity
Issued: 2008 Jan 29 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 029 Issued at 2200Z on 29 Jan 2008

IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was very low. New Region 892 (S09E53) was numbered today.

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

IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was quiet to unsettled.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for 30-31 January. Quiet to unsettled conditions with isolated active periods are expected for 01 February as a recurrent coronal hole becomes geoeffective.

III. Event Probabilities 30 Jan-01 Feb

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

IV. Penticton 10.7 cm Flux

• Observed 29 Jan 072
• Predicted 30 Jan-01 Feb 075/080/080
• 90 Day Mean 29 Jan 074

V. Geomagnetic A Indices

• Observed Afr/Ap 28 Jan 002/002
• Estimated Afr/Ap 29 Jan 005/005
• Predicted Afr/Ap 30 Jan-01 Feb 005/005-005/005-010/015

VI. Geomagnetic Activity Probabilities 30 Jan-01 Feb

A. Middle Latitudes

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

B. High Latitudes

• Active 10/10/25
• Minor storm 05/05/20
• Major-severe storm 01/01/05