Viewing archive of Wednesday, 26 April 2006
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 2006 Apr 26 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 116 Issued at 2200Z on 26 Apr 2006IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity reached moderate levels. Region 875
(S10E34) produced an M1/1f flare at 26/1702 UTC. This Region also
produced a C9/sf flare at 26/1453 UTC. New Region 877 (S07E52) was
numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. Further M-class activity is possible from Region 875.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet.
III. Event Probabilities 27 Apr to 29 Apr
| Class M | 20% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Apr 100 Predicted 27 Apr-29 Apr 100/100/100 90 Day Mean 26 Apr 080
V. Geomagnetic A Indices
Observed Afr/Ap 25 Apr 001/005 Estimated Afr/Ap 26 Apr 003/005 Predicted Afr/Ap 27 Apr-29 Apr 003/005-003/005-003/005
VI. Geomagnetic Activity Probabilities 27 Apr to 29 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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