Viewing archive of Friday, 26 May 2006
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 2006 May 26 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 146 Issued at 2200Z on 26 May 2006IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity was very low. Region 885 (S12W38)
produced a B5 flare at 25/2328Z. A halo CME was observed in LASCO
imagery, beginning at 26/0006Z. Regions 887 (S12E64) and 888
(N05W64) were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was predominantly quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the next two days (27-28 May). Unsettled
conditions, with isolated active periods, are expected on 29 May due
to transient effects from today's CME.
III. Event Probabilities 27 May to 29 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 May 082 Predicted 27 May-29 May 080/080/080 90 Day Mean 26 May 081
V. Geomagnetic A Indices
Observed Afr/Ap 25 May 004/005 Estimated Afr/Ap 26 May 004/006 Predicted Afr/Ap 27 May-29 May 005/005-005/005-010/015
VI. Geomagnetic Activity Probabilities 27 May to 29 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 30% |
| Minor storm | 05% | 05% | 15% |
| Major-severe storm | 01% | 01% | 05% |
All times in UTC
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