Viewing archive of Tuesday, 6 December 2011
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 2011 Dec 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 340 Issued at 2200Z on 06 Dec 2011IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity was low. Region 1363 (S22W20) produced
the sole C-class event, a C6 x-ray flare at 05/2325Z.
IB. Solar Activity Forecast
Solar activity is expected to be low
for the next 3 days (7-9 December).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be mostly quiet for the next 3 days (7-9 December).
III. Event Probabilities 07 Dec to 09 Dec
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Dec 151 Predicted 07 Dec-09 Dec 150/150/160 90 Day Mean 06 Dec 145
V. Geomagnetic A Indices
Observed Afr/Ap 05 Dec 004/002 Estimated Afr/Ap 06 Dec 005/005 Predicted Afr/Ap 07 Dec-09 Dec 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 07 Dec to 09 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 04% | 04% | 04% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 14% | 14% | 14% |
| Minor storm | 17% | 17% | 17% |
| Major-severe storm | 15% | 15% | 15% |
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