Viewing archive of Wednesday, 23 March 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 Mar 23 2210 UTC# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 082 Issued at 2200Z on 23 Mar 2005IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was very low. Region 745 (N12E30)
produced several low level B-class flares. New Region 746 (S11E07)
was numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. A region that produced a backside CME on LASCO imagery
at 21/1448Z is expected to rotate on the East limb sometime over the
next few days.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with a slight chance for isolated
active periods on 24 and 25 March. Activity is expected to increase
slightly on 26 March as a recurrent coronal hole high speed stream
moves into geoeffective position. Expect unsettled to active
conditions on 26 March.
III. Event Probabilities 24 Mar to 26 Mar
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Mar 088 Predicted 24 Mar-26 Mar 090/090/095 90 Day Mean 23 Mar 098
V. Geomagnetic A Indices
Observed Afr/Ap 22 Mar 002/003 Estimated Afr/Ap 23 Mar 006/006 Predicted Afr/Ap 24 Mar-26 Mar 008/012-008/012-010/015
VI. Geomagnetic Activity Probabilities 24 Mar to 26 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 30% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 10% |
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