Viewing archive of Monday, 6 October 2003
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 2003 Oct 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 279 Issued at 2200Z on 06 Oct 2003IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity decreased to very low levels today.
Region 471 (S08W04) produced only low level B-class flares today.
No significant changes were seen in the magnetic complexity or the
penumbral coverage during the period. The gamma magnetic structure
remains intact. Regions 476 (S16E12) and 477 (S15E63) were newly
numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at
low levels. There is a slight chance of an isolated M-class flare
from the moderately complex Region 471.
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic field ranged from quiet to isolated active levels.
The solar wind speeds increased to 600 km/s due to a recurrent high
speed coronal hole stream. The Bz component of the IMF remained
north throughout the majority of the day.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at quiet to unsettled levels. Isolated active
conditions are possible on day one due to a recurrent high speed
coronal hole stream. The remainder of the period should see
predominantly quiet to unsettled levels.
III. Event Probabilities 07 Oct to 09 Oct
| Class M | 20% | 20% | 20% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Oct 112 Predicted 07 Oct-09 Oct 110/110/105 90 Day Mean 06 Oct 120
V. Geomagnetic A Indices
Observed Afr/Ap 05 Oct 004/009 Estimated Afr/Ap 06 Oct 008/012 Predicted Afr/Ap 07 Oct-09 Oct 012/015-010/012-008/010
VI. Geomagnetic Activity Probabilities 07 Oct to 09 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 25% | 20% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 05% | 05% | 01% |
All times in UTC
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