Viewing archive of Sunday, 9 April 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 Apr 09 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 099 Issued at 2200Z on 09 Apr 2006IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity was very low. Region 865 has rotated
around the west limb. All other regions have remained quiescent.
No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was at quiet to minor storm levels, with major
storming at high latitudes. The geomagnetic storm was the result of
a co-rotating interaction region preceding the high speed stream
from a coronal hole.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled to active with a chance for minor storm
conditions on 10 April. Quiet to unsettled conditions are expected
on 11 - 12 April.
III. Event Probabilities 10 Apr to 12 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Apr 089 Predicted 10 Apr-12 Apr 085/080/080 90 Day Mean 09 Apr 080
V. Geomagnetic A Indices
Observed Afr/Ap 08 Apr 003/005 Estimated Afr/Ap 09 Apr 020/020 Predicted Afr/Ap 10 Apr-12 Apr 015/015-008/010-005/005
VI. Geomagnetic Activity Probabilities 10 Apr to 12 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 15% |
| Minor storm | 15% | 05% | 01% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 40% | 30% | 20% |
| Minor storm | 25% | 10% | 05% |
| Major-severe storm | 15% | 05% | 01% |
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