Viewing archive of Sunday, 25 December 2005
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 2005 Dec 25 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 359 Issued at 2200Z on 25 Dec 2005IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity was low. New Region 842 (S06E30)
produced a C1 flare at 25/1014 UTC.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled on 26 December. On 27 and 28
December, unsettled to active conditions are expected with the
possibility of minor storm periods due to a recurrent coronal hole
high speed stream.
III. Event Probabilities 26 Dec to 28 Dec
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Dec 092 Predicted 26 Dec-28 Dec 085/085/085 90 Day Mean 25 Dec 084
V. Geomagnetic A Indices
Observed Afr/Ap 24 Dec 003/003 Estimated Afr/Ap 25 Dec 005/008 Predicted Afr/Ap 26 Dec-28 Dec 005/008-010/010-010/012
VI. Geomagnetic Activity Probabilities 26 Dec to 28 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 30% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 05% | 05% |
All times in UTC
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