Joint USAF/NOAA Report of Solar and Geophysical Activity 22 Mar 2007
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Product: Report of Solar-Geophysical Activity
Issued: 2007 Mar 22 2221 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 081 Issued at 2200Z on 22 Mar 2007
IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity was very low. No new regions were numbered today.
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. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next two days (23-24 March). Expect quiet to unsettled conditions, with isolated active periods on 25 March due to a recurrent coronal hole high speed stream. Isolated minor storm periods are possible at high latitudes as the coronal hole moves into a geoeffective position.
III. Event Probabilities 23 Mar-25 Mar
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF green
IV. Penticton 10.7 cm Flux
- Observed 22 Mar 073
- Predicted 23 Mar-25 Mar 075/075/075
- 90 Day Mean 22 Mar 078
V. Geomagnetic A Indices
- Observed Afr/Ap 21 Mar 001/002
- Estimated Afr/Ap 22 Mar 003/005
- Predicted Afr/Ap 23 Mar-25 Mar 005/005-005/005-008/010
VI. Geomagnetic Activity Probabilities 23 Mar-25 Mar
A. Middle Latitudes
- Active 15/15/20
- Minor storm 05/05/05
- Major-severe storm 01/01/01
B. High Latitudes
- Active 15/15/25
- Minor storm 05/05/10
- Major-severe storm 01/01/05