Viewing archive of Monday, 6 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 06 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 066 Issued at 2200Z on 06 MAR 2000

IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z

SOLAR ACTIVITY HAS BEEN LOW FOR THE PAST 24 HOURS. TODAY'S LARGEST EVENT WAS AN OPTICALLY UNCORRELATED C4 FLARE AT 1049Z. REGION 8891 (S16W58) IS DECLINING SLOWLY BUT CONTINUES TO BE THE LARGEST GROUP ON THE DISK. REGION 8898 (S13E20) CONTINUED TO GROW AND SHOWED OCCASIONAL BRIGHTENINGS AND SUBFLARE ACTIVITY. REGION 8900 (S15W12) IS ALSO GROWING, BUT WAS QUIETER THAN 8898. REGION 8889 (N19W74), WHICH HAS BEEN VERY STABLE OVER THE LAST FEW DAYS, PRODUCED A C3/SF AT 1619Z WHICH WAS ACCOMPANIED BY A BRIGHT SURGE ON THE LIMB. SOHO/EIT IMAGES SHOWED THE ERUPTION OF A FILAMENT IN THE NORTHWEST PART OF THE DISK ON THE 5TH AROUND 1700Z. CORONAGRAPH DATA SHOW THAT THE CME MATERIAL IS NOT DIRECTED TOWARDS THE EARTH.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW TO MODERATE. THERE IS A FAIR CHANCE FOR AN ISOLATED M-CLASS EVENT OVER THE NEXT THREE DAYS FROM REGION 8891, 8898, OR 8900.
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. A SOLAR SECTOR BOUNDARY CROSSING WAS OBSERVED AT THE ACE SPACECRAFT AT 06/0200Z. SINCE THAT TIME, SPEEDS HAVE BEEN SLIGHTLY ELEVATED AND THE GEOMAGNETIC FIELD HAS BEEN MOSTLY UNSETTLED.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 07 MAR to 09 MAR
Class M50%50%50%
Class X10%10%10%
Proton10%10%10%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       06 MAR 222
  Predicted   07 MAR-09 MAR  225/220/215
  90 Day Mean        06 MAR 171
V. Geomagnetic A Indices
OBSERVED AFR/AP 05 MAR  004/007
ESTIMATED AFR/AP 06 MAR  012/012
PREDICTED AFR/AP 07 MAR-09 MAR  007/010-007/010-007/008
VI. Geomagnetic Activity Probabilities 07 MAR to 09 MAR
A. Middle Latitudes
Active20%20%20%
Minor storm10%10%10%
Major-severe storm05%05%05%
B. High Latitudes
Active25%25%25%
Minor storm15%15%15%
Major-severe storm05%05%05%

All times in UTC

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