Viewing archive of Tuesday, 1 April 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 Apr 01 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 092 Issued at 2200Z on 01 Apr 2008IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity was very low. Today's activity consisted
to two, low-level B-class flares, both from Region 989 (S11W14).
Region 989 has decayed to spotless plage and Regions 987 (S08W75)
and 988 (S07W50) were both in decline.
IB. Solar Activity Forecast
Solar activity is expected to be very
low. There is, however, a slight chance for an isolated C-class
flare during the next three days.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field was mostly quiet during the past 24 hours. The
greater than 2 MeV electron flux at geosynchronous orbit reached
high levels during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be generally quiet for the next three days (02-04
April).
III. Event Probabilities 02 Apr to 04 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Apr 078 Predicted 02 Apr-04 Apr 075/075/075 90 Day Mean 01 Apr 073
V. Geomagnetic A Indices
Observed Afr/Ap 31 Mar 002/004 Estimated Afr/Ap 01 Apr 005/005 Predicted Afr/Ap 02 Apr-04 Apr 005/005-005/005-005/010
VI. Geomagnetic Activity Probabilities 02 Apr to 04 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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