Viewing archive of Sunday, 7 June 1998

Solar activity report

Report of Solar-Geophysical Activity 1998 Jun 07 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 158 Issued at 2200Z on 07 JUN 1998

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

SOLAR ACTIVITY WAS LOW. ALL REGIONS APPEAR STABLE OR DECLINING. A SMALL C FLARE WAS OBSERVED AT 1443UT FROM REGION 8232 (S20E09). REGION 8237 (S25E69) HAS ROTATED OVER THE EAST LIMB AS A SMALL BXO SPOT GROUP. A TYPE II SWEEP WAS REPORTED AT 0912UT.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW. ISOLATED CLASS C FLARES ARE EXPECTED, PRIMARILY FROM REGION 8232. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 06/2100Z TO 07/2100Z: THE GEOMAGNETIC FIELD WAS GENERALLY UNSETTLED TO ACTIVE. SOME MINOR STORMING AT HIGH LATITUDES OCCURRED EARLY IN THE UT DAY.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO BE AT UNSETTLED TO ACTIVE LEVELS.
III. Event Probabilities 08 JUN to 10 JUN
Class M20%20%20%
Class X05%05%05%
Proton01%01%05%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       07 JUN 113
  Predicted   08 JUN-10 JUN  115/118/119
  90 Day Mean        07 JUN 110
V. Geomagnetic A Indices
OBSERVED AFR/AP 06 JUN  015/014
ESTIMATED AFR/AP 07 JUN  012/014
PREDICTED AFR/AP 08 JUN-10 JUN  010/010-018/018-012/015
VI. Geomagnetic Activity Probabilities 08 JUN to 10 JUN
A. Middle Latitudes
Active20%30%30%
Minor storm10%15%10%
Major-severe storm05%06%06%
B. High Latitudes
Active30%30%30%
Minor storm10%15%15%
Major-severe storm05%06%06%

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