Viewing archive of Friday, 23 March 2007
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2007 Mar 23 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 082 Issued at 2200Z on 23 Mar 2007IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was very low. New Region 947 (S13W60)
was classified as a Cso beta group.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled for the next three days (24-26
March). Isolated active periods are expected on 25-26 March, with
minor storm periods possible at high latitudes, due to a recurrent
coronal hole high speed stream.
III. Event Probabilities 24 Mar to 26 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Mar 073 Predicted 24 Mar-26 Mar 075/075/075 90 Day Mean 23 Mar 078
V. Geomagnetic A Indices
Observed Afr/Ap 22 Mar 001/002 Estimated Afr/Ap 23 Mar 008/008 Predicted Afr/Ap 24 Mar-26 Mar 008/008-008/010-010/015
VI. Geomagnetic Activity Probabilities 24 Mar to 26 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 25% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 30% |
| Minor storm | 05% | 10% | 20% |
| Major-severe storm | 01% | 05% | 10% |
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