Viewing archive of Monday, 20 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 20 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 232 Issued at 2200Z on 20 Aug 2007IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z Solar activity has been very low.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low.
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic field has been quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet 21 August and quiet to unsettled 22 - 23
August.
III. Event Probabilities 21 Aug to 23 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 20 Aug 069 Predicted 21 Aug-23 Aug 070/070/070 90 Day Mean 20 Aug 071
V. Geomagnetic A Indices
Observed Afr/Ap 19 Aug 002/003 Estimated Afr/Ap 20 Aug 002/003 Predicted Afr/Ap 21 Aug-23 Aug 002/005-006/008-004/005
VI. Geomagnetic Activity Probabilities 21 Aug to 23 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 01% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 20% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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