Joint USAF/NOAA Report of Solar and Geophysical Activity 08 Jun 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Jun 08 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Environment Center and the U.S. Air Force.

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 159 Issued at 2200Z on 08 Jun 2007

IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity continued low. Region 960 (S08W17), the most prominent of the spotted regions visible, continues to simplify and decay. It has produced frequent small C-class activity through the interval. The other two spotted regions have been quiet.

IB. Solar Activity Forecast: Solar activity is expected to be low. Region 960 retains the potential for an isolated M-class flare.

IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been quiet. The GOES greater than 2 MeV electron flux was at high levels once again.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to persist at quiet conditions through the forecast period.

III. Event Probabilities 09 Jun-11 Jun

• Class M 30/30/30
• Class X 05/05/05
• Proton 05/05/05
• PCAF green

IV. Penticton 10.7 cm Flux

• Observed 08 Jun 084
• Predicted 09 Jun-11 Jun 080/080/080
• 90 Day Mean 08 Jun 074

V. Geomagnetic A Indices

• Observed Afr/Ap 07 Jun 001/003
• Estimated Afr/Ap 08 Jun 005/008
• Predicted Afr/Ap 09 Jun-11 Jun 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 09 Jun-11 Jun

A. Middle Latitudes

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

B. High Latitudes

• Active 25/25/25
• Minor storm 15/15/15
• Major-severe storm 05/05/05