Viewing archive of Wednesday, 8 August 2001
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 2001 Aug 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 220 Issued at 2200Z on 08 Aug 2001IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity was low. Regions 9557 (S21W93), 9563
(N24W48), and 9566 (N17W33) all produced C-class subflare activity
during the past day. Region 9557 has rotated out of view beyond the
west limb without producing major flare activity. New Region 9573
(S08E70) was numbered.
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. M-class activity is still possible in Region 9557 from
beyond the west limb as well as an isolated M-flare in Region 9563.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 09 Aug to 11 Aug
| Class M | 50% | 50% | 30% |
| Class X | 05% | 05% | 01% |
| Proton | 05% | 05% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Aug 167 Predicted 09 Aug-11 Aug 160/155/150 90 Day Mean 08 Aug 150
V. Geomagnetic A Indices
Observed Afr/Ap 07 Aug 008/013 Estimated Afr/Ap 08 Aug 010/010 Predicted Afr/Ap 09 Aug-11 Aug 010/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 09 Aug to 11 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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