Viewing archive of Wednesday, 24 March 1999
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 1999 Mar 24 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 083 Issued at 2200Z on 24 MAR 1999IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z SOLAR ACTIVITY WAS VERY LOW. ONLY A FEW SMALL B-CLASS
FLARES OCCURRED. NO OPTICAL FLARE REPORTS WERE RECEIVED. NEW REGION
8499 (N23W39) EMERGED ON THE DISK.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW.
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 QUIET TO UNSETTLED.
III. Event Probabilities 25 MAR to 27 MAR
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 24 MAR 108 Predicted 25 MAR-27 MAR 110/115/120 90 Day Mean 24 MAR 141
V. Geomagnetic A Indices
OBSERVED AFR/AP 23 MAR 007/005 ESTIMATED AFR/AP 24 MAR 005/008 PREDICTED AFR/AP 25 MAR-27 MAR 015/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 25 MAR to 27 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 05% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 10% | 05% | 01% |
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