Viewing archive of Wednesday, 29 March 2000
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 2000 Mar 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 089 Issued at 2200Z on 29 MAR 2000IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z SOLAR ACTIVITY WAS LOW. SEVERAL C-CLASS EVENTS
OCCURRED DURING THE PERIOD. REGION 8921 (S16W44) SHOWED SIGNIFICANT
DECAY. NEW REGIONS 8935 (S07E35) AND 8936 (S16E72) WERE NUMBERED
TODAY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
WITH THE CHANCE OF AN ISOLATED M-CLASS EVENT.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED. LASCO/SOHO SCIENTISTS TODAY
REPORTED A BACKSIDE FULL HALO CME THAT IS NOT EARTH DIRECTED AND IS
FIRST VISIBLE AT 29/1054Z OVER THE SOUTHEAST LIMB. THIS EVENT MAY
BE RELATED TO OLD ACTIVE REGION 8906 (S16, L=121) WHICH IS DUE TO
RETURN ON 03 APRIL.
III. Event Probabilities 30 MAR to 01 APR
| Class M | 30% | 40% | 50% |
| Class X | 05% | 05% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 29 MAR 209 Predicted 30 MAR-01 APR 195/190/185 90 Day Mean 29 MAR 179
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 MAR 003/005 ESTIMATED AFR/AP 29 MAR 005/005 PREDICTED AFR/AP 30 MAR-01 APR 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 30 MAR to 01 APR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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