Viewing archive of Tuesday, 8 May 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 May 08 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 128 Issued at 2200Z on 08 May 2007IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been very low. Region 953 has
rotated off the visible disk.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field has ranged from quiet to active.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled on 09 May. Isolated active
periods remain possible due to a geoeffective, recurrent coronal
hole high speed stream. The geomagnetic field is expected to be
predominately quiet on 10 - 11 May.
III. Event Probabilities 09 May to 11 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 08 May 073 Predicted 09 May-11 May 070/070/070 90 Day Mean 08 May 074
V. Geomagnetic A Indices
Observed Afr/Ap 07 May 011/018 Estimated Afr/Ap 08 May 012/015 Predicted Afr/Ap 09 May-11 May 008/008-004/005-004/005
VI. Geomagnetic Activity Probabilities 09 May to 11 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 15% | 15% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 25% | 25% |
| Minor storm | 25% | 15% | 15% |
| Major-severe storm | 05% | 01% | 01% |
All times in UTC
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