Viewing archive of Saturday, 30 May 2009
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 2009 May 30 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 150 Issued at 2200Z on 30 May 2009IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity was very low. No flares were observed
during the past 24 hours. The visible disk remained spotless. A
slow-moving CME from the west limb was observed on LASCO C2 imagery
at 29/1530Z.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the next three days (31 May - 2 Jun). The
CME observed on 29 May does not appear to be geoeffective.
III. Event Probabilities 31 May to 02 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 30 May 069 Predicted 31 May-02 Jun 070/070/070 90 Day Mean 30 May 069
V. Geomagnetic A Indices
Observed Afr/Ap 29 May 004/005 Estimated Afr/Ap 30 May 003/005 Predicted Afr/Ap 31 May-02 Jun 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 31 May to 02 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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