Alert archive / South Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 154, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 3, 1986, 8:29 PM CDT for Tripp County, South Dakota. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Aug 3, 1986, 8:29 PM CDT (01:29 UTC)
- Expired
- Aug 3, 1986, 9:05 PM CDT
- In force
- 36 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Tripp County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 1.5 hours before the alert went out and 209 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 040129 SVRFSD SDC123-040230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 829 PM CDT SUN AUG 3 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTH CENTRAL SOUTH DAKOTA...SOUTHERN TRIPP SOME OF THE CITIES INCLUDED IN THIS WARNING ARE CLEARFIELD.. KEYAPAHA..MILLBORO..AND WEWELA. AT 825 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 17 MILES SOUTHWEST OF WINNER SOUTH DAKOTA. THIS SEVERE THUNDERSTORM WAS MOVING SOUTH/SOUTHEAST AT 15 MPH. 3/4 INCH HAIL COVERING THE GROUND HAS BEEN REPORTED WITH THIS SEVERE THUNDERSTORM ALONG WITH HEAVY RAINS OF OVER AN INCH. IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED SHELTER. A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF 60 MPH..HAIL 3/4 INCH OR LARGER..DEADLY LIGHTNING..AND HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA. KAPELA
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
Local storm report, Aug 3, 7:45 PM CDT, 44 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
745 PM CDT SUN AUG 3 1986
TIME EVENT AND LOCATION
725 PM CDT 3/4 INCH HAIL /AND SMALLER/ COVERED GROUND
TOTALLY WHITE IN WITTEN AREA OF TRIPP COUNTY
..ABOUT 12 MILES WEST/NORTHWEST OF WINNER SD...
1.50 INCHES OF RAIN AT WITTEN FROM 700 TO 730 PM
KAPELASpecial weather statement, Aug 3, 7:47 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE HURON SD 745 PM CDT SUN AUG 3 1986 AT 730 PM CDT...ISOLATED INTENSE THUNDERSTORMS WITH VERY HEAVY RAINS HAD DEVELOPED OVER SOUTH CENTRAL SOUTH DAKOTA. THE INTENSE THUNDERSTORMS WERE LOCATED JUST WEST OF WINNER. THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL..GUSTY WINDS.. FREQUENT LIGHTNING..AND VERY HEAVY RAIN. OTHERWISE..ISOLATED THUNDERSTORMS WERE OCCURING 70 MILES SOUTHWEST OF PIERRE. MOVEMENT WAS SOUTHEAST AT 20 MILES AN HOUR. EDDY/MILLER
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:22 PM CDT | Severe Thunderstorm Warning | FSD | Tripp | 68 min |
| Aug 4, 5:02 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 58 min |
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; the sounding from the Mesonet's radiosonde archive.