Viewing archive of Friday, 10 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 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 070 Issued at 2200Z on 10 MAR 2000IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z SOLAR ACTIVITY CONTINUED AT LOW LEVELS WITH NUMEROUS
C-CLASS SUBFLARES OBSERVED. REGION 8906 (S16E44) CONTINUED AS THE
LARGEST OF THE VISIBLE SPOT GROUPS, BUT SHOWED NO SIGNIFICANT
CHANGES. IT PRODUCED SEVERAL C-CLASS SUBFLARES, THE LARGEST OF WHICH
WAS A C7/SF AT 10/1758UT. REGION 8900 (S16W63) CONTINUED TO DECAY
AND PRODUCED ISOLATED C-CLASS SUBFLARES. THE REMAINING REGIONS WERE
STABLE.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE AT
LOW TO MODERATE LEVELS. ISOLATED M-CLASS FLARES ARE POSSIBLE.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
GEOMAGNETIC FIELD ACTIVITY WAS AT QUIET TO UNSETTLED LEVELS.
IIB. Geophysical Activity Forecast
GEOMAGNETIC FIELD ACTIVITY IS
EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS.
III. Event Probabilities 11 MAR to 13 MAR
| Class M | 50% | 50% | 50% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 10 MAR 203 Predicted 11 MAR-13 MAR 200/195/180 90 Day Mean 10 MAR 174
V. Geomagnetic A Indices
OBSERVED AFR/AP 09 MAR 003/005 ESTIMATED AFR/AP 10 MAR 007/006 PREDICTED AFR/AP 11 MAR-13 MAR 007/007-007/007-007/010
VI. Geomagnetic Activity Probabilities 11 MAR to 13 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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