Viewing archive of Friday, 13 October 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 Oct 13 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 286 Issued at 2200Z on 13 Oct 2006IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z Solar activity was very low. The solar disk remains
spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic field was quiet to active. Solar wind speed started
to increase late on 12 October due to a geoeffective coronal hole
high speed stream, and continued to rise throughout the reporting
period. At time of issue, the solar wind speed was approximately
520 km/s.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled to active with a chance for isolated minor
storm periods on 14 October due to the coronal hole high speed
stream. Expect mostly quiet to unsettled conditions on 15 - 16
October.
III. Event Probabilities 14 Oct to 16 Oct
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Oct 073 Predicted 14 Oct-16 Oct 072/070/070 90 Day Mean 13 Oct 077
V. Geomagnetic A Indices
Observed Afr/Ap 12 Oct 003/005 Estimated Afr/Ap 13 Oct 015/020 Predicted Afr/Ap 14 Oct-16 Oct 015/015-010/010-005/005
VI. Geomagnetic Activity Probabilities 14 Oct to 16 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 10% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 25% | 15% |
| Minor storm | 20% | 15% | 05% |
| Major-severe storm | 05% | 05% | 01% |
All times in UTC
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