Joint USAF/NOAA Report of Solar and Geophysical Activity 28 Jan 2009

Product: Report of Solar-Geophysical Activity
Issued: 2009 Jan 28 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 028 Issued at 2200Z on 28 Jan 2009

IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity was very low. The disk was spotless. No flares were observed.

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

IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: The geomagnetic field was quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet

III. Event Probabilities 29 Jan-31 Jan

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

IV. Penticton 10.7 cm Flux

• Observed 28 Jan 070
• Predicted 29 Jan-31 Jan 070/070/070
• 90 Day Mean 28 Jan 069

V. Geomagnetic A Indices

• Observed Afr/Ap 27 Jan 002/004
• Estimated Afr/Ap 28 Jan 005/005
• Predicted Afr/Ap 29 Jan-31 Jan 005/005-007/008-005/005

VI. Geomagnetic Activity Probabilities 29 Jan-31 Jan

A. Middle Latitudes

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

B. High Latitudes

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