Viewing archive of Friday, 27 June 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 Jun 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 178 Issued at 2200Z on 27 JUN 1997IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z SOLAR ACTIVITY WAS VERY LOW. REGION 8056 (N17W47) HAS
DECREASED IN SIZE AND THE NUMBER OF SUNSPOTS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW WITH A SMALL CHANCE FOR WEAK C-CLASS FLARES AS REGION
8056'S ACTIVITY FLUCTUATES.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
THE GEOMAGNETIC FIELD WAS GENERALLY QUIET TO UNSETTLED WITH ONE
PERIOD REACHING ACTIVE LEVELS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO ACTIVE.
III. Event Probabilities 28 JUN to 30 JUN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 27 JUN 072 Predicted 28 JUN-30 JUN 072/073/074 90 Day Mean 27 JUN 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 26 JUN 006/005 ESTIMATED AFR/AP 27 JUN 012/015 PREDICTED AFR/AP 28 JUN-30 JUN 010/010-010/008-010/008
VI. Geomagnetic Activity Probabilities 28 JUN to 30 JUN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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