Viewing archive of Wednesday, 31 May 2006
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 2006 May 31 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 151 Issued at 2200Z on 31 May 2006IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 31-2100Z Solar activity was very low. No new regions were
numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 30-2100Z to 31-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to active for the next three days (01 - 03
June) with possible minor storm periods due to a recurrent coronal
hole moving into geoeffective position.
III. Event Probabilities 01 Jun to 03 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 31 May 078 Predicted 01 Jun-03 Jun 080/075/080 90 Day Mean 31 May 081
V. Geomagnetic A Indices
Observed Afr/Ap 30 May 007/009 Estimated Afr/Ap 31 May 006/012 Predicted Afr/Ap 01 Jun-03 Jun 010/015-015/020-015/020
VI. Geomagnetic Activity Probabilities 01 Jun to 03 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 25% |
| Minor storm | 10% | 15% | 15% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 30% | 30% |
| Minor storm | 15% | 20% | 20% |
| Major-severe storm | 05% | 10% | 10% |
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