Viewing archive of Monday, 25 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 25 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 206 Issued at 2200Z on 25 Jul 2005IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity has been very low. Region 791 (N13E22)
continues to be the only numbered spotted region on the visible
solar disk. Even though this group has been relatively quiet it
does show slight development in both area and spot count. The LASCO
imagery observed two full halo CME's. The first was at 24/2230 UTC
and the second at 25/1106 UTC. Both of these were backside events
and not Earth directed.
IB. Solar Activity Forecast
Solar activity is expected to be very
low. Region 791 could produce B-class flares with a chance for an
isolated C-class event.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron
flux at geosynchronous orbit was at high levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominately at quiet to unsettled levels.
III. Event Probabilities 26 Jul to 28 Jul
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Jul 084 Predicted 26 Jul-28 Jul 085/090/100 90 Day Mean 25 Jul 097
V. Geomagnetic A Indices
Observed Afr/Ap 24 Jul 003/005 Estimated Afr/Ap 25 Jul 005/006 Predicted Afr/Ap 26 Jul-28 Jul 005/005-008/010-010/015
VI. Geomagnetic Activity Probabilities 26 Jul to 28 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 20% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 30% | 30% |
| Minor storm | 05% | 15% | 15% |
| Major-severe storm | 01% | 05% | 10% |
All times in UTC
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