Viewing archive of Sunday, 9 March 2008
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 2008 Mar 09 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 069 Issued at 2200Z on 09 Mar 2008IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity was very low. The visible disk is
spotless.
IB. Solar Activity Forecast
Solar activity is expected to continue
at very low levels.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was at quiet to minor storm levels due to the
influence of a recurrent coronal hole high speed stream. Solar wind
at the ACE spacecraft increased from 438 km/s to a maximum of 691
km/s at 09/2023Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to range from quiet to active levels with isolated minor
storm periods possible for the next three days (10 - 12 March), due
to the coronal hole high speed stream. Isolated major storm
conditions are possible at high latitudes during this period.
III. Event Probabilities 10 Mar to 12 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Mar 070 Predicted 10 Mar-12 Mar 070/070/070 90 Day Mean 09 Mar 074
V. Geomagnetic A Indices
Observed Afr/Ap 08 Mar 006/011 Estimated Afr/Ap 09 Mar 020/025 Predicted Afr/Ap 10 Mar-12 Mar 010/015-010/010-010/015
VI. Geomagnetic Activity Probabilities 10 Mar to 12 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 40% | 40% | 40% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
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