Viewing archive of Wednesday, 5 September 2007
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 2007 Sep 05 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 248 Issued at 2200Z on 05 Sep 2007IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z Solar activity was very low. No significant flares
were observed during the past 24 hours.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic field was quiet to active. The greater than 2 MeV
electron flux reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to active, with isolated minor storm periods
possible on 06 September as a recurrent coronal hole moves into a
geoeffective position. Expect quiet to unsettled conditions with
isolated active periods possible at high latitudes on 07 September.
Quiet to unsettled conditions will prevail on 08 September.
III. Event Probabilities 06 Sep to 08 Sep
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Sep 068 Predicted 06 Sep-08 Sep 068/068/067 90 Day Mean 05 Sep 070
V. Geomagnetic A Indices
Observed Afr/Ap 04 Sep 004/006 Estimated Afr/Ap 05 Sep 009/013 Predicted Afr/Ap 06 Sep-08 Sep 010/015-006/010-005/005
VI. Geomagnetic Activity Probabilities 06 Sep to 08 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 15% | 10% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 25% | 15% |
| Minor storm | 20% | 10% | 05% |
| Major-severe storm | 10% | 05% | 01% |
All times in UTC
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