Viewing archive of Sunday, 28 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 28 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 148 Issued at 2200Z on 28 May 2006IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z Solar activity was very low. New region 890 (S14W29)
produced a B1 flare at 28/1257Z.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
The geomagnetic field was mostly quiet. A period of unsettled
conditions was observed from 28/0300Z - 28/0600Z, possibly due to a
glancing blow from the CME which occurred on 26 May.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled for the first two days (29-30
May). Predominantly unsettled conditions are expected on 31 May.
III. Event Probabilities 29 May to 31 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 May 085 Predicted 29 May-31 May 085/085/080 90 Day Mean 28 May 082
V. Geomagnetic A Indices
Observed Afr/Ap 27 May 001/003 Estimated Afr/Ap 28 May 005/005 Predicted Afr/Ap 29 May-31 May 005/010-005/010-008/010
VI. Geomagnetic Activity Probabilities 29 May to 31 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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