Viewing archive of Friday, 29 August 1997

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 1997 Aug 29 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 241 Issued at 2200Z on 29 AUG 1997

IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z

SOLAR ACTIVITY WAS LOW. THE DAY'S LARGEST EVENT WAS AN UNCORRELATED C4 AT 0428Z. REGION 8076 (N28E11) GENERATED A C1/0F AT 1730Z. THIS REGION CONTINUED TO GROW IN WHITE LIGHT, RETAINING A DEGREE OF MAGNETIC COMPLEXITY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW. REGION 8076 SHOULD CONTINUE TO PRODUCE OCCASIONAL C-CLASS EVENTS.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED. NIGHTTIME SUBSTORMS BROUGHT EPISODES OF ACTIVE TO MINOR STORM LEVELS TO BOTH MIDDLE AND HIGH GEOMAGNETIC LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE GENERALLY QUIET TO UNSETTLED. SUBSTORMS SHOULD CONTINUE, BRINGING SHORT-LIVED ACTIVE TO MINOR STORM LEVELS THE NEXT FEW DAYS.
III. Event Probabilities 30 AUG to 01 SEP
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       29 AUG 092
  Predicted   30 AUG-01 SEP  093/093/092
  90 Day Mean        29 AUG 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 AUG  016/016
ESTIMATED AFR/AP 29 AUG  015/013
PREDICTED AFR/AP 30 AUG-01 SEP  010/015-010/008-005/005
VI. Geomagnetic Activity Probabilities 30 AUG to 01 SEP
A. Middle Latitudes
Active25%15%10%
Minor storm10%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active35%25%15%
Minor storm20%15%05%
Major-severe storm01%01%01%

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