Viewing archive of Saturday, 30 June 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 Jun 30 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 181 Issued at 2200Z on 30 Jun 2007IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity was very low. Region 961 (S12E09) has
developed in size and complexity, but has not produced any
significant activity. Region 962 (S10E37) has decayed into a simple
Alpha-class spot group.
IB. Solar Activity Forecast
Solar activity is expected to be very
low. There is a slight chance of an isolated C-class flare from
Region 961.
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field was quiet to unsettled. Solar wind speed has
been steadily decreasing, but remains slightly elevated due to the
coronal hole high speed stream.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled for the next three days (01 - 03
July).
III. Event Probabilities 01 Jul to 03 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Jun 074 Predicted 01 Jul-03 Jul 075/075/075 90 Day Mean 30 Jun 074
V. Geomagnetic A Indices
Observed Afr/Ap 29 Jun 005/013 Estimated Afr/Ap 30 Jun 005/007 Predicted Afr/Ap 01 Jul-03 Jul 005/005-005/005-005/008
VI. Geomagnetic Activity Probabilities 01 Jul to 03 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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