Joint USAF/NOAA Report of Solar and Geophysical Activity 10 Feb 2009

Product: Report of Solar-Geophysical Activity
Issued: 2009 Feb 10 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 041 Issued at 2200Z on 10 Feb 2009

IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity was very low. No flares occurred during the past 24 hours. No spots were observed on the solar disk.

IB. Solar Activity Forecast: Solar activity is expected to be very low for the next three days (11-13 February).

IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field was quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days.

III. Event Probabilities 11 Feb-13 Feb

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

IV. Penticton 10.7 cm Flux

• Observed 10 Feb 068
• Predicted 11 Feb-13 Feb 070/070/070
• 90 Day Mean 10 Feb 069

V. Geomagnetic A Indices

• Observed Afr/Ap 09 Feb 000/004
• Estimated Afr/Ap 10 Feb 005/005
• Predicted Afr/Ap 11 Feb-13 Feb 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 11 Feb-13 Feb

A. Middle Latitudes

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

B. High Latitudes

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