Viewing archive of Sunday, 4 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 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 124 Issued at 2200Z on 04 MAY 1997IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z SOLAR ACTIVITY REMAINED VERY LOW. SEVERAL OPTICALLY
UNCORRELATED SMALL B-CLASS FLARES OCCURRED. SMALL REGION 8037
(S26W42) DECAYED. A LARGE, CURRENTLY QUIESCENT, PROMINENCE WAS
VISIBLE NEAR THE EQUATOR AT THE NORTHEAST LIMB.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD CONTINUE AT A
VERY LOW LEVEL FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO SLIGHTLY UNSETTLED. SOLAR WIND
VELOCITIES DECREASED TO JUST OVER 400 KM/S.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
FORECAST TO BE QUIET TO SLIGHTLY UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 05 MAY to 07 MAY
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 04 MAY 071 Predicted 05 MAY-07 MAY 072/072/072 90 Day Mean 04 MAY 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 03 MAY 010/009 ESTIMATED AFR/AP 04 MAY 008/008 PREDICTED AFR/AP 05 MAY-07 MAY 008/008-005/010-005/010
VI. Geomagnetic Activity Probabilities 05 MAY to 07 MAY
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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