Viewing archive of Sunday, 25 May 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 May 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 145 Issued at 2200Z on 25 MAY 1997IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z SOLAR ACTIVITY WAS VERY LOW. ONLY A COUPLE B-LEVEL
X-RAY FLARES WERE OBSERVED. OF THE FOUR SPOTTED REGIONS ON THE DISK
REGION 8046 (S27E41) SHOWED THE MOST ACTIVITY. THE OTHER THREE
REGIONS WERE VERY QUIET AND STABLE.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET FOR THE PAST 24 HOURS.
A BRIEF INTERVAL OF SLIGHT ENHANCED ACTIVITY OCCURRED FROM
0300-0600: MID-LATITUDES WERE UNSETTLED AND HIGH LATITUDES WERE
UNSETTLED TO ACTIVE.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 26 MAY to 28 MAY
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 25 MAY 078 Predicted 26 MAY-28 MAY 076/074/072 90 Day Mean 25 MAY 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 24 MAY 009/006 ESTIMATED AFR/AP 25 MAY 005/008 PREDICTED AFR/AP 26 MAY-28 MAY 005/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 26 MAY to 28 MAY
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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