Viewing archive of Wednesday, 19 June 1996
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 1996 Jun 19 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 171 Issued at 2200Z on 19 JUN 1996IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z SOLAR ACTIVITY REMAINED VERY LOW. NEW REGION 7973
(N09E71) ROTATED INTO VIEW AS A SMALL H CLASS SUNSPOT GROUP.
THIS REGION PRODUCED A LONG DURATION A9 EVENT FROM 19/1104-
1414Z. YOHKOH OBSERVED THE EVENT. ANOTHER SMALLER LONG DURATION
EVENT BEGAN NEAR 19/1700Z AND WAS ENDING NEAR 19/2100Z.
THE LOCATION FOR THIS EVENT IS UNKNOWN, BUT REGION 7973 IS THE
LIKELY SOURCE.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD CONTINUE
AT A VERY LOW LEVEL FOR THE NEXT THREE DAYS. THERE IS A SLIGHT
POSSIBILITY OF A C-CLASS FLARE FROM REGION 7973.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
THE GEOMAGNETIC FIELD WAS UNSETTLED AT THE BEGINNING OF THE
PERIOD. ACTIVE TO MINOR STORM CONDITIONS WERE OBSERVED
BETWEEN 19/0000-0600Z. THE SOURCE OF THIS DISTURBANCE IS
UNKNOWN. QUIET CONDITIONS WERE OBSERVED FOR THE REMAINDER
OF THE PERIOD. REAL-TIME SOLAR WIND DATA WERE RECEIVED
DURING THE QUIET PERIODS. STREAM PARAMETERS WERE
UNREMARKABLE.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD
IS FORECAST TO BE QUIET TO UNSETTLED FOR THE NEXT THREE
DAYS. ISOLATED SUBSTORMS ARE POSSIBLE EARLY ON 20 JUN.
III. Event Probabilities 20 JUN to 22 JUN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 19 JUN 068 Predicted 20 JUN-22 JUN 069/069/069 90 Day Mean 19 JUN 070
V. Geomagnetic A Indices
OBSERVED AFR/AP 18 JUN 006/005 ESTIMATED AFR/AP 19 JUN 015/012 PREDICTED AFR/AP 20 JUN-22 JUN 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 20 JUN to 22 JUN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 05% | 05% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 05% | 01% | 01% |
All times in UTC
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