Joint USAF/NOAA Report of Solar and Geophysical Activity 22 Nov 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Nov 22 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 326 Issued at 2200Z on 22 Nov 2007

IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity was very low.

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

IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field was quiet to active. 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 quiet to unsettled for 23-25 November.

III. Event Probabilities 23 Nov-25 Nov

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

IV. Penticton 10.7 cm Flux

• Observed 22 Nov 070
• Predicted 23 Nov-25 Nov 070/070/070
• 90 Day Mean 22 Nov 068

V. Geomagnetic A Indices

• Observed Afr/Ap 21 Nov 009/013
• Estimated Afr/Ap 22 Nov 005/010
• Predicted Afr/Ap 23 Nov-25 Nov 005/005-005/008-010/015

VI. Geomagnetic Activity Probabilities 23 Nov-25 Nov

A. Middle Latitudes

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

B. High Latitudes

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