Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 73, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 27, 1990, 7:51 PM CDT for Brookings County, South Dakota. It was in force for 39 min.
The area
The counties it named.
The facts
- Issued
- Jun 27, 1990, 7:51 PM CDT (00:51 UTC)
- Expired
- Jun 27, 1990, 8:30 PM CDT
- In force
- 39 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Brookings 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, 0.9 hours before the alert went out and 140 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
- 1502 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 2138 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 17.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSD 280053
SVRFSD
SDC011-280130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
751 PM CDT WED JUN 27 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN EAST CENTRAL SOUTH DAKOTA
...WESTERN BROOKINGS
AT 745 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES NORTHWEST
OF BROOKINGS MOVING SOUTH SOUTHEAST AT 30 MPH.
SOME CITIES INCLUDED IN THIS WARNING ARE ARLINGTON...SINAI...AND
BROOKINGS.
UMLAND
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.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 27, 6:28 PM CDT, 1 hour 23 minutes before
SDZALL-270015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 625 PM CDT WED JUN 27 1990 ...TORNADO WATCH NORTH CENTRAL AND NORTHEAST SOUTH DAKOTA TIL 10 PM CDT. SEVERE THUNDERSRORM WATCH UNTIL MIDNIGHT CDT NORTHWEST SOUTH DAKOTA... A TORNADO WATCH REMAINS IN EFFECT FOR NORTH CENTRAL AND NORTHEAST SOUTH DAKOTA. A SEVERE THUNDERSTORM WATCH HAS ALSO BEEN ISSUED FOR NORTHWEST SOUTH DAKOTA. AT 6 PM CDT SCATTERED THUNDERSTORMS WITH A FEW SEVERE STORMS CONTINUED OVER NORTHEAST SOUTH DAKOTA...WHILE DEVELOPING OVER PARTS OF THE WESTERN THIRD OF SOUTH DAKOTA. OTHERWISE SKIES WERE PARTLY CLOUDY TO MOSTLY SUNNY OVER THE STATE. TEMPERATURES RANGED FROM 69 AT ABERDEEN WHERE A THUNDERSTORM COOLED IT OFF SHARPLY TO 102 AT PIERRE AND CHAMBERLAIN. THROUGH 8 PM CDT SCATTERED THUNDERSTORMS SHOULD MOVE INTO EAST CENTRAL SECTIONS OF THE STATE AS WELL AS INCREASE OVER THE WESTERN HALF...WHILE DECREASING OVER PARTS OF THE NO=RTHEAST. TEMPERATURES WILL FALL 4 TO 8 DEGREES EXCEPT MAY FALL 15 TO 20 DEGREES WHERE A THUNDERSTORM MOVES IN. BIER
Special weather statement, Jun 27, 7:36 PM CDT, 15 minutes before
SDZALL-270115-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
735 PM CDT WED JUN 27 1990
...TORNADO WATCH NORTH CENTRAL AND NORTHEAST SOUTH DAKOTA TIL 10 PM
CDT. SEVERE THUNDERSRORM WATCH UNTIL MIDNIGHT CDT FOR THE REST OF
SOUTH DAKOTA EXCEPT FOR THE SOUTHWEST CORNER.
A TORNADO WATCH REMAINS IN EFFECT FOR NORTH CENTRAL AND NORTHEAST SOUTH
DAKOTA. A SEVERE THUNDERSTORM WATCH HAS ALSO BEEN ISSUED FOR THE REST OF
SOUTH DAKOTA EXCEPT FOR THE SOUTHWEST CORNER.
AT 6 PM CDT SCATTERED THUNDERSTORMS WITH A FEW SEVERE STORMS OR STORMS
PRODUCING VERY HEAVY RAIN WERE OVER NORTHEAST...EAST CENTRAL AND THE
WESTERN THIRD OF SOUTH DAKOTA. SOME STORMS WERE ALSO PRODUCING SMALL
STREAM OR URBAN FLOODING. TEMPERATURES RANGED FROM 76 AT WATERTOWN TO
99 AT CHAMBERLAIN.{{}
THROUGH 8 PM CDT SCATTERED THUNDERSTORMS WITH A FEW SEVERE STORMS WILL
DECREASE IN THE NORTHEAST...BUT WILL BE DEVELOPING IN THE SOUTHEAST
AND POSSIBLY PARTS OF THE CENTRAL. TEMPERATURES WILL FALL 5 TO 10
DEGREES EXCEPT MAY FALL 15 TO 20 DEGREES WHERE A THUNDERSTORM MOVES IN.
SMALL STREAM AND URBAN FLOODING WILL CONTINUE TO BE A PROBLEM IN THOSE
AREAS WHERE VERY HEAVY THUNDERSTORM RAINS FALL.
BIER
rThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 8:10 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 35 min |
| Jun 27, 8:37 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 38 min |
| Jun 27, 9:08 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 37 min |
| Jun 27, 9:08 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 37 min |
| Jun 27, 9:34 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 56 min |
| Jun 27, 11:56 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 34 min |
| Jun 27, 11:56 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha, Turner | 34 min |
| Jun 28, 12:30 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha, Turner | 30 min |
| Jun 28, 12:58 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 32 min |
| Jun 28, 7:32 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 43 min |
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.