Alert archive / South Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 39, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 5, 1986, 2:30 AM CDT for Hughes County, Stanley County, South Dakota. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 5, 1986, 2:30 AM CDT (07:30 UTC)
- Expired
- Jul 5, 1986, 3:30 AM CDT
- In force
- 60 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Hughes County, SD, Stanley County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 5, 2:36 AM CDT | Thunderstorm Wind 76 | Hughes, SD |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 7.5 hours before the alert went out and 165 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 3274 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 1424 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHON 050735 RRA SVRHON SDC065-117-050830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HURON SD 231 AM CDT SAT JUL 5 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF CENTRAL SOUTH DAKOTA...HUGHES AND EASTERN STANLEY THIS WARNING INCLUDES THE ADJACENT WATERS OF THE MISSOURI RIVER. SOME OF THE CITIES INCLUDED IN THE WARNING AREA ARE PIERRE AT 218 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF PIERRE MOVING EAST AT 45 MILES AN HOUR. IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GO TO A REINFORCED SHELTER. A SEVERE THUNDERSTORM PRODUCES ANY OR ALL OF THE FOLLOWING... DAMAGING WIND IN EXCESS OF 60 MPH..HAIL 3/4 INCH OR LARGER..DEADLY LIGHTNING..AND VERY HEAVY RAIN THAT CAN FLOOD LOW LYING AREAS VERY QUICKLY. THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCEe WARNING SO BE ON THE LOOKOUT. PRESTON/ORGISH
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 4, 9:21 PM CDT, 5 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 820 PM MDT FRI JUL 4 1986 AT 810 PM MDT RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN ON THE CORSON..PERKINS COUNTY LINE OF NORTHWEST SOUTH DAKOTA. THIS STORM WAS 25 MILES SOUTH OF LEMMON IN PERKINS COUNTY. THE STORM WAS MOVING NORTHEAST AT 35 MILES AND HOUR. PERSONS IN THE WESTERN TWO THIRDS OF CORSON COUNTY SHOULD BE ALERT FOR THIS STORM. INDIVIDUALS IN THE PATH OF THISb THUNDERSTORM SHOULD BE ALERT FOR HEAVY RAIN..SMALL HAIL..GUSTY SURFACE WINDS AND DANGEROUS LIGHTNING. THIS STORM MAY BECOME SEVERE WITH LITTLE NOTICE. BE ON THE ALERT FOR SEVERE WEATHER AND TAKE SHELTER IMMEDIATELY. HUSTON
Nearby
Severe Thunderstorm Warnings in South Dakota, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.