Viewing archive of Friday, 24 August 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 Aug 24 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 236 Issued at 2200Z on 24 Aug 2007IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity has been low. Region 969 (S05E35)
produced an impulsive C2/Sn event at 24/0754 UTC.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. Region 969 could possibly produce an isolated C-class
flare.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field has been quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with isolated active periods. The
increase in activity is expected in response to a recurrent coronal
hole.
III. Event Probabilities 25 Aug to 27 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Aug 072 Predicted 25 Aug-27 Aug 070/070/070 90 Day Mean 24 Aug 072
V. Geomagnetic A Indices
Observed Afr/Ap 23 Aug 001/002 Estimated Afr/Ap 24 Aug 003/005 Predicted Afr/Ap 25 Aug-27 Aug 010/015-010/015-008/012
VI. Geomagnetic Activity Probabilities 25 Aug to 27 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 15% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 20% |
| Minor storm | 15% | 15% | 10% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
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