Viewing archive of Wednesday, 4 July 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 Jul 04 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 185 Issued at 2200Z on 04 Jul 2007IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z Solar activity was very low.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
The geomagnetic field was quiet to active. Solar wind at ACE started
the period at 03/2100 UTC with 438 km/s, increased to a peak of 652
km/s at 04/0931 UTC, and has steadily declined to around 480 km/s at
forecast issue time. The IMF Bz also experienced minor fluctuations
throughout the period from +/- 7 nT.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled for 05 July. Quiet conditions are
expected for 06-07 July.
III. Event Probabilities 05 Jul to 07 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 04 Jul 072 Predicted 05 Jul-07 Jul 075/075/070 90 Day Mean 04 Jul 074
V. Geomagnetic A Indices
Observed Afr/Ap 03 Jul 006/009 Estimated Afr/Ap 04 Jul 010/015 Predicted Afr/Ap 05 Jul-07 Jul 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 05 Jul to 07 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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