Viewing archive of Thursday, 9 December 2010
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 2010 Dec 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 343 Issued at 2200Z on 09 Dec 2010IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity was very low.
IB. Solar Activity Forecast
Solar activity is expected to be very
low for the next 3 days (10-12 December).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was mostly quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the first half of day 1 (10 December).
Mostly unsettled conditions with a chance for isolated active
periods are expected through the remainder of the period due to a
recurrent coronal hole.
III. Event Probabilities 10 Dec to 12 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Dec 087 Predicted 10 Dec-12 Dec 087/087/088 90 Day Mean 09 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 08 Dec 003/003 Estimated Afr/Ap 09 Dec 003/005 Predicted Afr/Ap 10 Dec-12 Dec 008/008-010/010-010/010
VI. Geomagnetic Activity Probabilities 10 Dec to 12 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 30% |
| Minor storm | 10% | 20% | 20% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 50% | 50% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 05% | 10% | 10% |
All times in UTC
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