Viewing archive of Wednesday, 19 October 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 Oct 19 2205 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 292 Issued at 2200Z on 19 Oct 2005 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. New Region 816 (S14W29) emerged on the disk today as a simple B-type sunspot group.IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominantly quiet to unsettled. There is a chance
for isolated active periods on the third day (22 Oct) due to a
favorably-positioned coronal hole.
III. Event Probabilities 20 Oct to 22 Oct
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Oct 078 Predicted 20 Oct-22 Oct 080/080/080 90 Day Mean 19 Oct 088
V. Geomagnetic A Indices
Observed Afr/Ap 18 Oct 005/005 Estimated Afr/Ap 19 Oct 008/008 Predicted Afr/Ap 20 Oct-22 Oct 005/008-005/005-010/015
VI. Geomagnetic Activity Probabilities 20 Oct to 22 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 05% | 15% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 35% |
| Minor storm | 10% | 10% | 20% |
| Major-severe storm | 05% | 05% | 10% |
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