Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 24, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 1, 1990, 7:13 AM CDT for Tripp County, South Dakota. It was in force for 12 min.
The area
The counties it named.
The facts
- Issued
- Jun 1, 1990, 7:13 AM CDT (12:13 UTC)
- Expired
- Jun 1, 1990, 7:25 AM CDT
- In force
- 12 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 12:00Z, 0.2 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
- 365 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 733 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSD 011213
SVRFSD
SDC123-011245-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
713 AM CDT FRI JUN 1 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 745 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE SOUTH CENTRAL PART OF SOUTH DAKOTA
WESTERN TRIPP
SOME OF THE CITIES INCLUDED IN THIS WARNING ARE WINNER.
AT 705 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES
WEST OF WINNER SOUTH DAKOTA MOVING TOWARDS THE EAST AT 20 MPH.
LARGE HAIL AND STRONG WINDS CAN BE EXPECTED WITH THIS STORM.
IF YOU ARE IN THE PATH OF THIS STORM..YOU SHOULD GET TO A REINFORCED
SHELTER. A SEVERE THUN7DERSTORM 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.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, Jun 1, 6:12 AM CDT, 1 hour 1 minute before
SDZ015-011200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 611 AM CDT FRI JUN 1 1990 ...THUNDERSTORMS WITH VERY HEAVY RAINS LOCATED OVER SOUTHCENTRAL MELLETTE COUNTY OF SOUTHCENTRAL SOUTH DAKOTA... AT 605 AM CDT RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAINS 40 MILES WEST NORTHWEST OF WINNER SOUTH DAKOTA NEAR WHITE RIVER SOUTH DAKOTA. THIS STORM WAS MOVING EAST NORTHEAST AT 20 MPH AND WILL AFFECT EASTERN MELLETTE COUNTY OF SOUTHCENTRAL SOUTH DAKOTA UNTIL 7 AM CDT. HEAVY RAINS...SMALL HAIL AND GUSTY WINDS ALONG WITH DANGEROUS CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM.
Nearby
Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning in 1990
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.