Viewing archive of Thursday, 29 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 29 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 088 Issued at 2200Z on 29 Mar 2007IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity was very low. Solar X-rays remained
below B-level during the past 24 hours. Region 949 (N06E48) is a
small C-type group and is the only spotted group on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the next two days (30-31 March). An
increase to unsettled levels with a chance for active periods is
expected sometime late on the third day (1 April) due to a recurrent
high speed stream from a favorably positioned coronal hole.
III. Event Probabilities 30 Mar to 01 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Mar 074 Predicted 30 Mar-01 Apr 075/075/075 90 Day Mean 29 Mar 078
V. Geomagnetic A Indices
Observed Afr/Ap 28 Mar 006/007 Estimated Afr/Ap 29 Mar 005/005 Predicted Afr/Ap 30 Mar-01 Apr 005/005-005/005-007/010
VI. Geomagnetic Activity Probabilities 30 Mar to 01 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 05% |
All times in UTC
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