Viewing archive of Thursday, 7 August 2008
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 2008 Aug 07 2210 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 220 Issued at 2200Z on 07 Aug 2008IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity was very low. The visible disk was
spotless. No flares were observed during the past 24 hours.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled with a chance of active periods for day one
(08 August). Unsettled to active conditions are expected for day two
(09 August), with mostly unsettled conditions expected for day three
(10 August). The increase in activity is forecast due to a
corotating interaction region followed by a high speed coronal hole
stream.
III. Event Probabilities 08 Aug to 10 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Aug 066 Predicted 08 Aug-10 Aug 066/066/066 90 Day Mean 07 Aug 067
V. Geomagnetic A Indices
Observed Afr/Ap 06 Aug 005/004 Estimated Afr/Ap 07 Aug 004/004 Predicted Afr/Ap 08 Aug-10 Aug 010/015-015/020-010/010
VI. Geomagnetic Activity Probabilities 08 Aug to 10 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 35% | 20% |
| Minor storm | 01% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 25% |
| Minor storm | 15% | 20% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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