Viewing archive of Monday, 24 May 2010
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 2010 May 24 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 144 Issued at 2200Z on 24 May 2010IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity was very low. The STEREO and SOHO/LASCO
imagery observed a CME today originating from the filament channel
located around N15W32. This event was first observed on the C2
imagery around 24/1406Z. The latest analysis indicated its
signature as a partial halo CME. A long duration B1 flare at
24/1446Z was also associated with this event. Region 1072 (S15W22)
has decreased slightly in white light areal coverage and sunspot
count and is a beta magnetic configuration.
IB. Solar Activity Forecast
Solar activity is expected to be very
low with a slight chance for a C-class flare from Region 1072.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominantly quiet for the first two days (25-26
May). Unsettled to active conditions, with isolated minor storm
levels, are expected on day three (27 May). This increase is
expected due to the CME activity of 23-24 May.
III. Event Probabilities 25 May to 27 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 24 May 073 Predicted 25 May-27 May 076/076/078 90 Day Mean 24 May 078
V. Geomagnetic A Indices
Observed Afr/Ap 23 May 000/002 Estimated Afr/Ap 24 May 001/002 Predicted Afr/Ap 25 May-27 May 005/005-005/005-015/017
VI. Geomagnetic Activity Probabilities 25 May to 27 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 30% |
| Minor storm | 01% | 01% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 35% |
| Minor storm | 01% | 01% | 15% |
| Major-severe storm | 01% | 01% | 05% |
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