Joint USAF/NOAA Report of Solar and Geophysical Activity 09 Jan 2008

Product: Report of Solar-Geophysical Activity
Issued: 2008 Jan 09 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 009 Issued at 2200Z on 09 Jan 2008

IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity was very low.

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

IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next three days (10-12 January).

III. Event Probabilities 10 Jan-12 Jan

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

IV. Penticton 10.7 cm Flux O

• bserved 09 Jan 077
• Predicted 10 Jan-12 Jan 075/075/070
• 90 Day Mean 09 Jan 073

V. Geomagnetic A Indices

• Observed Afr/Ap 08 Jan 011/013
• Estimated Afr/Ap 09 Jan 005/007
• Predicted Afr/Ap 10 Jan-12 Jan 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 10 Jan-12 Jan

A. Middle Latitudes

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

B. High Latitudes

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