Viewing archive of Tuesday, 22 August 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 Aug 22 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 235 Issued at 2200Z on 22 AUG 2000

IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z

SOLAR ACTIVITY WAS LOW. ONLY LOW LEVEL C-CLASS EVENTS WERE OBSERVED. A MODERATE DURATION C2 OCCURRED FROM 22/0829-0939Z AND WAS LIKELY ASSOCIATED WITH ERUPTIVE ACTIVITY AT THE NORTHWEST LIMB. A SMALL REGION ROTATED ONTO THE DISK NEAR N08E70 AND WAS NUMBERED AS NEW REGION 9140.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD CONTINUE AT A LOW LEVEL FOR THE NEXT THREE DAYS. IIA. GEOPHYSICAL ACTIVITY SUMMARY 21/2100Z TO 22/2100Z: THE GEOMAGNETIC FIELD WAS QUIET. SOLAR WIND VELOCITY WAS VERY LOW DURING THE PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD SHOULD BE PREDOMINANTLY QUIET TO UNSETTLED FOR THE NEXT THREE DAYS. ISOLATED ACTIVE CONDITIONS ARE POSSIBLE.
III. Event Probabilities 23 AUG to 25 AUG
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       22 AUG 144
  Predicted   23 AUG-25 AUG  140/135/135
  90 Day Mean        22 AUG 183
V. Geomagnetic A Indices
OBSERVED AFR/AP 21 AUG  009/012
ESTIMATED AFR/AP 22 AUG  004/008
PREDICTED AFR/AP 23 AUG-25 AUG  008/012-010/012-010/010
VI. Geomagnetic Activity Probabilities 23 AUG to 25 AUG
A. Middle Latitudes
Active15%30%20%
Minor storm05%10%05%
Major-severe storm01%01%01%
B. High Latitudes
Active25%30%20%
Minor storm05%10%05%
Major-severe storm01%05%01%

All times in UTC

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