Viewing archive of Saturday, 26 August 2000

Solar activity report

Report of Solar-Geophysical Activity 2000 Aug 26 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 239 Issued at 2200Z on 26 AUG 2000

IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z

SOLAR ACTIVITY WAS LOW. SEVERAL LOW C-CLASS EVENTS OCCURRED DURING THE PERIOD. A FILAMENT DISAPPEARED BETWEEN 26/0101-1123Z NEAR N26W25. THE SOHO/LASCO SPACECRAFT OBSERVED A CME STARTING AROUND 26/1754Z IN THE NE QUADRANT WHICH APPEARS TO BE ORIGINATING FROM THE BACKSIDE OF THE SUN
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW FOR THE FORECAST PERIOD. AN ISOLATED CHANCE OF AN M-CLASS EVENT IS POSSIBLE FROM REGION 9144 (N25E02) AND REGION 9143 (S19E46). IIA. GEOPHYSICAL ACTIVITY SUMMARY 25/2100Z TO 26/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED THROUGH THE PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 27 AUG to 29 AUG
Class M 30%30%30%
Class X 05%05%05%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       26 AUG 137
  Predicted    27 AUG-29 AUG  140/145/150
  90 Day Mean        26 AUG 181
V. Geomagnetic A Indices
OBSERVED AFR/AP 25 AUG  003/007
ESTIMATED AFR/AP 26 AUG  006/008
PREDICTED AFR/AP 27 AUG-29 AUG  008/010-008/012-010/010
VI. Geomagnetic Activity Probabilities 27 AUG to 29 AUG
A. Middle Latitudes
Active20%20%25%
Minor storm 10%10%15%
Major-severe storm 05%05%05%
B. High Latitudes
Active25%25%25%
Minor storm 15%15%15%
Major-severe storm 05%05%05%

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