Viewing archive of Friday, 3 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 03 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.comJoint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 063 Issued at 2200Z on 03 MAR 2000
IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z
SOLAR ACTIVITY WAS MODERATE. REGION 8886 (S12W87)
PRODUCED TODAY'S LARGEST EVENT, AN M4/SN AT 1046Z. THE REGION
EXHIBITED BRIGHT PLAGE WITH FREQUENT FLUCTUATIONS THROUGHOUT THE DAY
AS IT APPROACHED THE WEST LIMB. REGION 8882 (S15W70) ALSO PRODUCED
AN M-CLASS EVENT: AN M3/1B AT 0214Z WHICH WAS ACCOMPANIED BY A TYPE
IV RADIO SWEEP EVENT. THIS REGION IS CURRENTLY THE LARGEST ON THE
DISK, BUT WAS SHOWING SOME EARLY INDICATORS OF DECAY NEAR DAY'S END.
REGION 8891 (S15W17) IS ALSO LARGE BUT WAS STABLE THROUGHOUT THE
PERIOD. A FAINT CME COULD BE OBSERVED WITH THE SOHO DATA FROM THE
SOUTHWEST LIMB, BEGINNING AT 0454Z. A SUBSEQUENT BRIGHT, LARGE CME
WAS OBSERVED ON THE SOUTHEAST LIMB BEGINNING AT 0654Z. NEITHER OF
THESE CME'S HAD AN OBVIOUS ASSOCIATED COUNTERPART ON THE DISK,
IMPLYING THAT THEY BOTH ORIGINATED FROM BEHIND THE SOLAR LIMB.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE OVER THE NEXT THREE DAYS. THERE IS A CHANCE FOR AN ISOLATED
MAJOR FLARE OR PROTON PRODUCING FLARE FROM REGION 8882, OR POSSIBLY
REGIONS 8886 OR 8891.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED FOR THE PAST 24 HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE FOR THE NEXT THREE DAYS. AN
INCREASE IN ACTIVITY LEVELS MAY OCCUR IN RESPONSE TO THE POSSIBILITY
OF A GLANCING BLOW FROM RECENT CORONAL MASS EJECTIONS ASSOCIATED
WITH THE M6 AND X1 FLARES OF 02 MARCH. A DIRECT HIT IS NOT LIKELY
SINCE NEITHER OF THESE CME'S WERE OBSERVED AS HALO CME'S AND ARE NOT
THOUGHT TO BE DIRECTED TOWARDS THE EARTH.
III. Event Probabilities 04 MAR to 06 MAR
Class M | 65% | 65% | 65% |
Class X | 20% | 20% | 20% |
Proton | 20% | 20% | 20% |
PCAF | GREEN
|
IV. Penticton 10.7 cm Flux
Observed 03 MAR 204
Predicted 04 MAR-06 MAR 200/195/190
90 Day Mean 03 MAR 169
V. Geomagnetic A Indices
OBSERVED AFR/AP 02 MAR 007/008
ESTIMATED AFR/AP 03 MAR 005/007
PREDICTED AFR/AP 04 MAR-06 MAR 015/028-015/025-010/020
VI. Geomagnetic Activity Probabilities 04 MAR to 06 MAR
A. Middle Latitudes |
Active | 25% | 25% | 20% |
Minor storm | 15% | 15% | 10% |
Major-severe storm | 05% | 05% | 05% |
B. High Latitudes |
Active | 30% | 30% | 25% |
Minor storm | 15% | 15% | 10% |
Major-severe storm | 10% | 10% | 05% |
All times in UTC
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