Viewing archive of Saturday, 7 November 1998

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 1998 Nov 07 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 311 Issued at 2200Z on 07 NOV 1998

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

SOLAR ACTIVITY WAS MODERATE. AN OPTICALLY UNCORRELATED M2 X-RAY FLARE OCCURRED AT 07/1106UT. A NEW SUNSPOT GROUP WAS NUMBERED AS REGION 8382 (N18W32) TODAY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE MODERATE TO HIGH.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO MINOR STORM. THE CME REPORTED ON 04/0418UT IMPACTED THE MAGNETOSPHERE AND CAUSED ACTIVE AND MINOR STORM CONDITIONS TODAY. THE LEVEL OF GT 10 MEV PROTONS WAS ELEVATED, BUT DID NOT CROSS THE GT 10 PFU THRESHOLD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO MINOR STORM DURING THE PERIOD.
III. Event Probabilities 08 NOV to 10 NOV
Class M75%75%75%
Class X50%50%50%
Proton50%25%10%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       07 NOV 149
  Predicted   08 NOV-10 NOV  145/145/145
  90 Day Mean        07 NOV 131
V. Geomagnetic A Indices
OBSERVED AFR/AP 06 NOV  017/022
ESTIMATED AFR/AP 07 NOV  018/025
PREDICTED AFR/AP 08 NOV-10 NOV  040/035-025/025-025/020
VI. Geomagnetic Activity Probabilities 08 NOV to 10 NOV
A. Middle Latitudes
Active40%40%40%
Minor storm40%20%15%
Major-severe storm10%10%10%
B. High Latitudes
Active50%50%40%
Minor storm30%25%20%
Major-severe storm20%15%10%

All times in UTC

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