Viewing archive of Friday, 30 March 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 Mar 30 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 089 Issued at 2200Z on 30 Mar 2007IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity was very low. No flares occurred during
the past 24 hours.
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 mostly quiet during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet tomorrow (31 March). An increase to unsettled
to active with a chance for minor storm periods is expected,
beginning late on the second day (1 April) and continuing through
the third day (2 April). The increase is expected in response to a
favorably positioned coronal hole.
III. Event Probabilities 31 Mar to 02 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Mar 074 Predicted 31 Mar-02 Apr 074/074/074 90 Day Mean 30 Mar 078
V. Geomagnetic A Indices
Observed Afr/Ap 29 Mar 002/002 Estimated Afr/Ap 30 Mar 005/005 Predicted Afr/Ap 31 Mar-02 Apr 005/005-007/010-015/025
VI. Geomagnetic Activity Probabilities 31 Mar to 02 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 30% |
| Minor storm | 05% | 10% | 20% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 35% |
| Minor storm | 05% | 15% | 25% |
| Major-severe storm | 01% | 05% | 10% |
All times in UTC
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