Joint USAF/NOAA Report of Solar and Geophysical Activity 07 Jun 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Jun 07 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 158 Issued at 2200Z on 07 Jun 2007

IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity was low. Region 960 (S07W03) produced a few small C-class events as it continued to slowly decay and simplify. Region 959 (S11W31) reemerged during the period, from a spotless plage to a simple bipole with nine spots. Region 958 (S12W54) was quiet.

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

IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field was quiet. The GOES greater than 2 MeV electron flux attained high levels once again.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet throughout the forecast period.

III. Event Probabilities 08 Jun-10 Jun

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

IV. Penticton 10.7 cm Flux

• Observed 07 Jun 086
• Predicted 08 Jun-10 Jun 085/080/080
• 90 Day Mean 07 Jun 073

V. Geomagnetic A Indices

• Observed Afr/Ap 06 Jun 002/002
• Estimated Afr/Ap 07 Jun 002/005
• Predicted Afr/Ap 08 Jun-10 Jun 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 08 Jun-10 Jun

A. Middle Latitudes

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

B. High Latitudes

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