Viewing archive of Friday, 7 March 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 Mar 07 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 067 Issued at 2200Z on 07 Mar 2008IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity was very low. Region 984 (S08W93)
rotated quietly around the west limb. The visible disk is now
spotless.
IB. Solar Activity Forecast
Solar activity is expected to continue
at very low levels.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was quiet. The period ended with solar wind
speed near 320 km/s. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast
The geomegnetic field is
expected to range from quiet to minor storming. A high speed coronal
hole stream is expected to rotate into a geoeffective position on 8
March. Active to minor storm periods are expected on 8 and 9 March.
Expect unsettled to active periods on 10 March.
III. Event Probabilities 08 Mar to 10 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Mar 071 Predicted 08 Mar-10 Mar 070/070/070 90 Day Mean 07 Mar 073
V. Geomagnetic A Indices
Observed Afr/Ap 06 Mar 002/002 Estimated Afr/Ap 07 Mar 002/003 Predicted Afr/Ap 08 Mar-10 Mar 012/015-020/020-010/010
VI. Geomagnetic Activity Probabilities 08 Mar to 10 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 50% | 30% |
| Minor storm | 20% | 25% | 15% |
| Major-severe storm | 10% | 15% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 50% | 50% | 40% |
| Minor storm | 25% | 30% | 20% |
| Major-severe storm | 15% | 20% | 10% |
All times in UTC
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