Viewing archive of Sunday, 4 May 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 May 04 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 124 Issued at 2200Z on 04 MAY 1997

IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z

SOLAR ACTIVITY REMAINED VERY LOW. SEVERAL OPTICALLY UNCORRELATED SMALL B-CLASS FLARES OCCURRED. SMALL REGION 8037 (S26W42) DECAYED. A LARGE, CURRENTLY QUIESCENT, PROMINENCE WAS VISIBLE NEAR THE EQUATOR AT THE NORTHEAST LIMB.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD CONTINUE AT A VERY LOW LEVEL FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO SLIGHTLY UNSETTLED. SOLAR WIND VELOCITIES DECREASED TO JUST OVER 400 KM/S.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS FORECAST TO BE QUIET TO SLIGHTLY UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 05 MAY to 07 MAY
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       04 MAY 071
  Predicted   05 MAY-07 MAY  072/072/072
  90 Day Mean        04 MAY 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 03 MAY  010/009
ESTIMATED AFR/AP 04 MAY  008/008
PREDICTED AFR/AP 05 MAY-07 MAY  008/008-005/010-005/010
VI. Geomagnetic Activity Probabilities 05 MAY to 07 MAY
A. Middle Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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