Viewing archive of Friday, 22 July 2005
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 2005 Jul 22 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 203 Issued at 2200Z on 22 Jul 2005IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity was very low. No significant activity
was observed during the period. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field was quiet to unsettled. Solar wind speed
remains elevated at approximately 580 km/s. The greater than 2 MeV
electrons at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at quiet to unsettled levels on 23 July as the
coronal hole high speed stream wanes. Predominantly quiet
conditions are expected on 24 and 25 July.
III. Event Probabilities 23 Jul to 25 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Jul 074 Predicted 23 Jul-25 Jul 075/080/085 90 Day Mean 22 Jul 097
V. Geomagnetic A Indices
Observed Afr/Ap 21 Jul 019/029 Estimated Afr/Ap 22 Jul 009/012 Predicted Afr/Ap 23 Jul-25 Jul 008/010-005/005-005/005
VI. Geomagnetic Activity Probabilities 23 Jul to 25 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 20% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 05% | 01% | 01% |
All times in UTC
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