Joint USAF/NOAA Report of Solar and Geophysical Activity 27 Jun 2007
Product: Report of Solar-Geophysical Activity
Issued: 2007 Jun 27 2234 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 178 Issued at 2200Z on 27 Jun 2007
IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity was low. A C1 flare occurred at 27/1800Z.
IB. Solar Activity Forecast: Solar activity is expected to be very low to low. There is a slight chance for an isolated M-class flare.
IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. Isolated active periods are possible on 30 June due to a recurrent coronal hole high speed stream.
III. Event Probabilities 28 Jun-30 Jun
- Class M 15/15/15
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
IV. Penticton 10.7 cm Flux
- Observed 27 Jun 073
- Predicted 28 Jun-30 Jun 080/080/080
- 90 Day Mean 27 Jun 074
V. Geomagnetic A Indices
- Observed Afr/Ap 26 Jun 004/005
- Estimated Afr/Ap 27 Jun 005/005
- Predicted Afr/Ap 28 Jun-30 Jun 005/005-006/008-008/010
VI. Geomagnetic Activity Probabilities 28 Jun-30 Jun
A. Middle Latitudes
- Active 10/15/25
- Minor storm 05/05/10
- Major-severe storm 01/01/01
B. High Latitudes
- Active 15/25/35
- Minor storm 05/15/20
- Major-severe storm 01/01/05