Viewing archive of Monday, 26 March 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 Mar 26 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 085 Issued at 2200Z on 26 Mar 2007IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity was very low. New Region 948 (S02W44)
is classified as a Dao beta group.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was quiet to unsettled with an isolated active
period. Solar wind speed remains slightly elevated at approximately
460 km/s due to the coronal hole high speed stream.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with isolated active periods for
the next two days due to the coronal hole high speed stream. Expect
quiet conditions on 29 March.
III. Event Probabilities 27 Mar to 29 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Mar 074 Predicted 27 Mar-29 Mar 075/075/075 90 Day Mean 26 Mar 078
V. Geomagnetic A Indices
Observed Afr/Ap 25 Mar 008/010 Estimated Afr/Ap 26 Mar 008/010 Predicted Afr/Ap 27 Mar-29 Mar 012/020-007/010-005/005
VI. Geomagnetic Activity Probabilities 27 Mar to 29 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 15% | 15% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 40% | 25% | 15% |
| Minor storm | 25% | 15% | 05% |
| Major-severe storm | 15% | 05% | 01% |
All times in UTC
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