Viewing archive of Monday, 22 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 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 081 Issued at 2200Z on 22 MAR 1999IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z SOLAR ACTIVITY WAS LOW DUE TO AN OPTICALLY UNCORRELATED
C1 X-RAY FLARE AT 22/0152UT. NO OPTICAL FLARES WERE REPORTED. ALL
DISK REGIONS ARE SMALL AND SIMPLE. NEW REGION 8497 (N30E60) ROTATED
AROUND THE EAST LIMB.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 23 MAR to 25 MAR
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 22 MAR 116 Predicted 23 MAR-25 MAR 110/110/110 90 Day Mean 22 MAR 142
V. Geomagnetic A Indices
OBSERVED AFR/AP 21 MAR 006/006 ESTIMATED AFR/AP 22 MAR 004/005 PREDICTED AFR/AP 23 MAR-25 MAR 005/008-005/012-010/010
VI. Geomagnetic Activity Probabilities 23 MAR to 25 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 01% | 01% | 10% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 01% | 01% | 10% |
| Major-severe storm | 01% | 01% | 05% |
All times in UTC
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