Viewing archive of Tuesday, 3 April 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 Apr 03 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 093 Issued at 2200Z on 03 Apr 2007IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity has been very low. Region 950 (S12W32)
was designated today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field was active with periods of minor storming due
to a recurrent coronal hole high speed stream. The greater than 2
MeV electron flux at geosynchronous orbit reached high levels again
today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled tomorrow (April 4) and quiet on April 5 &
6.
III. Event Probabilities 04 Apr to 06 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Apr 071 Predicted 04 Apr-06 Apr 072/072/072 90 Day Mean 03 Apr 077
V. Geomagnetic A Indices
Observed Afr/Ap 02 Apr 016/024 Estimated Afr/Ap 03 Apr 010/010 Predicted Afr/Ap 04 Apr-06 Apr 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 04 Apr to 06 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 20% |
| Minor storm | 20% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
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