Viewing archive of Wednesday, 14 July 1999

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 1999 Jul 14 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 195 Issued at 2200Z on 14 JUL 1999

IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z

SOLAR ACTIVITY HAS BEEN VERY LOW, NO C-CLASS EVENTS WERE OBSERVED SINCE THE C2.9 AT 0522UT ON THE 13TH. ALL REGIONS APPEAR STABLE OR DECLINING AND THE SOLAR LIMBS HAVE BEEN RELATIVELY QUIET.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW TO VERY LOW. ACTIVITY MAY START TO INCREASE LATE IN THE PERIOD AS FORMER ACTIVE LONGITUDES RETURN TO THE EAST LIMB.
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET EARLY IN THE PERIOD AND BECOMING SLIGHTLY ACTIVE LATE IN THE PERIOD.
III. Event Probabilities 15 JUL to 17 JUL
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       14 JUL 130
  Predicted   15 JUL-17 JUL  130/125/120
  90 Day Mean        14 JUL 152
V. Geomagnetic A Indices
OBSERVED AFR/AP 13 JUL  003/006
ESTIMATED AFR/AP 14 JUL  003/005
PREDICTED AFR/AP 15 JUL-17 JUL  005/005-007/007-010/010
VI. Geomagnetic Activity Probabilities 15 JUL to 17 JUL
A. Middle Latitudes
Active10%20%20%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active15%20%20%
Minor storm01%01%01%
Major-severe storm01%01%01%

All times in UTC

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