Viewing archive of Thursday, 19 August 2010
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 2010 Aug 19 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 231 Issued at 2200Z on 19 Aug 2010IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z Solar activity has been at very low levels for the past
24 hours. Region 1100 (S22E22) decayed to spotless plage late in the
period. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at
very low levels for the next three days (20-22 August).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at quiet levels for the next three days (20-22
August).
III. Event Probabilities 20 Aug to 22 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Aug 078 Predicted 20 Aug-22 Aug 078/078/077 90 Day Mean 19 Aug 077
V. Geomagnetic A Indices
Observed Afr/Ap 18 Aug 003/005 Estimated Afr/Ap 19 Aug 003/005 Predicted Afr/Ap 20 Aug-22 Aug 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 20 Aug to 22 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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