Viewing archive of Saturday, 24 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 24 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 358 Issued at 2200Z on 24 Dec 2005IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity was very low. New Regions 840 (S03E66)
and 841 (N04E74) were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled on 25 and 26 December. On 27
December, active to minor storm periods are possible due to a
coronal hole high speed stream moving into geoeffective position.
III. Event Probabilities 25 Dec to 27 Dec
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Dec 092 Predicted 25 Dec-27 Dec 090/085/085 90 Day Mean 24 Dec 084
V. Geomagnetic A Indices
Observed Afr/Ap 23 Dec 001/001 Estimated Afr/Ap 24 Dec 004/007 Predicted Afr/Ap 25 Dec-27 Dec 005/010-005/007-010/010
VI. Geomagnetic Activity Probabilities 25 Dec to 27 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 05% | 01% | 05% |
All times in UTC
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