Viewing archive of Sunday, 6 May 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 May 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 126 Issued at 2200Z on 06 May 2001IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity was low. Region 9445 (N23W30) was the
most active of the seven spotted regions. It produced a C7/Sf flare
at 2011 UTC, the largest of the few flares occurring during the
period. The disk can be described as stable, no new regions were
assigned, and the limbs were quiet.
IB. Solar Activity Forecast
Solar activity is expected to be low.
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to persist at quiet to unsettled levels, with a chance of
periodic active conditions during the latter half of the interval. A
high speed stream may affect the field May 8-9.
III. Event Probabilities 07 May to 09 May
| Class M | 30% | 30% | 30% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 May 155 Predicted 07 May-09 May 150/145/140 90 Day Mean 06 May 169
V. Geomagnetic A Indices
Observed Afr/Ap 05 May 002/005 Estimated Afr/Ap 06 May 005/007 Predicted Afr/Ap 07 May-09 May 005/008-010/010-010/010
VI. Geomagnetic Activity Probabilities 07 May to 09 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 30% | 30% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 40% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
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