Viewing archive of Wednesday, 26 November 1997

Solar activity report

Report of Solar-Geophysical Activity 1997 Nov 26 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 330 Issued at 2200Z on 26 NOV 1997

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

SOLAR ACTIVITY WAS MODERATE DUE TO AN M2/SF FLARE AT 26/1837Z IN NEW REGION 8113 (N20E77). THIS REGION IS STILL COMING INTO VIEW AS IT ROTATES AROUND THE EAST LIMB BUT APPEARS TO BE A MODERATELY SIZED E-TYPE SUNSPOT GROUP. IT HAS ALSO GENERATED SEVERAL C-CLASS FLARES SINCE YESTERDAY. OTHER DISK REGIONS WERE RELATIVELY QUIET.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE MODERATE. ANOTHER M-CLASS FLARE IS PROBABLE FROM REGION 8113. C-CLASS ACTIVITY SHOULD CONTINUE. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 25/2100Z TO 26/2100Z: THE GEOMAGNETIC FIELD WAS QUIET. THE GREATER THAN 2 MEV ELECTRON FLUX WAS HIGH.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET.
III. Event Probabilities 27 NOV to 29 NOV
Class M 40%40%40%
Class X 05%05%05%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       26 NOV 108
  Predicted    27 NOV-29 NOV  110/115/115
  90 Day Mean        26 NOV 093
V. Geomagnetic A Indices
OBSERVED AFR/AP 25 NOV  003/003
ESTIMATED AFR/AP 26 NOV  004/005
PREDICTED AFR/AP 27 NOV-29 NOV  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 27 NOV to 29 NOV
A. Middle Latitudes
Active10%10%10%
Minor storm 05%05%05%
Major-severe storm 01%01%01%
B. High Latitudes
Active10%10%10%
Minor storm 05%05%05%
Major-severe storm 01%01%01%

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