Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 114, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 18, 1990, 4:34 PM CDT for Brookings County, South Dakota. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Jul 18, 1990, 4:34 PM CDT (21:34 UTC)
- Expired
- Jul 18, 1990, 5:15 PM CDT
- In force
- 41 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 12:00Z, 9.6 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2240 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSD 182145 COR
SVRFSD
SDC011-182215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTED..LOCATION OF STORM
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
434 PM CDT WED JUL 18 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN EAST CENTRAL SOUTH DAKOTA
...BROOKINGS
AT 430 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF
BROOKINGS SOUTH DAKOTA MOVING EAST AT 20 MPH.
SOME CITIES INCLUDED IN THIS WARNING ARE BROOKINGS...WHITE...ELKTON...
AND BRUCE.
IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A
REINFORCED SHELTER. A SEVERE THUNDERSTORM PRO DUCES 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.
UMLANDWhat 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 18, 1:10 PM CDT, 3 hours 24 minutes before
SDZ017-018-020-IA001-MN017-181910- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1010 PM CDT WED JUL 18 1990 AT 1 PM CDT SCATTERED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN... CONTINUED ACROSS PARTS OF SOUTHEAST SOUTH DAKOTA...NORTHWEST IOWA ...AND SOUTHWEST MINNESOTA. THE STORMS IN A BAND ABOUT 30 MILES WIDE THAT EXTENDED FROM 40 MILES NORTHWEST OF SIOUX FALLS NEAR MADISON TO 35 MILES SOUTHEAST OF SIOUX FALLS NEAR GEORGE IOWA. THESE THUNDERSTORMS ARE ALSO CAPABLE OF PRODUCING GUSTY SURFACE WINDS ...SMALL HAIL AND DANGEROUS LIGHTNING AS THEY MOVE TO THE EAST AT 25 MILES AN HOUR. BUSS
Local storm report, Jul 18, 1:49 PM CDT, 2 hours 45 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
145 PM CDT WED JUL 18 1990
STORM DATA FOR TUESDAY JULY 18 1990
TIME COUNTY...LOCATION AND STATE CHARACTER OF STORM...DAMAGE
.......................................................................
825 AM CDT SIOUX...5 MILES NORTH OF SIOUX CENTER IOWA LARGE MARBLE
SIZE HAIL
847 AM CDT SIOUX...1 MILES EAST OF SIOUX CENTER IOWA GOLFBALL SIZE
HAIL
1035 AM CDT LINCOLN...BERESFORD SOUTH DAKOTA PEA SIZE HAIL WITH A
A FEW LARGER STONES
1151 AM CDT MINNEHAHA...TEA SOUTH DAKOTA PEA SIZE HAIL
1230 PM CDT LINCOLN...SHINDLER SOUTH DAKOTA/15 MILES SOUT.HEAST SIOUX
FALLS/ BETWEEN 1200 AND 1230 PM CDT LOTS OF
MARBLE SIZE HAIL...DENTED AWNING AND CAR ROOFSpecial weather statement, Jul 18, 3:17 PM CDT, 1 hour 17 minutes before
SDZALL-182115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 315 PM CDT WED JUL 18 1990 ...TORNADO WATCH MUCH OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 9 PM CDT... A TORNADO WATCH HAS BEEN ISSUED FOR MUCH OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 9 PM CDT... AT 3 PM CDT THUNDERSTORMS CONTINUED OVER NORTH CENTRAL...NORTHEAST AND EAST CENTRAL SOUTH DAKOTA. A FEW THUNDERSTORMS HAD DEVELOPED OVER WESTERN SOUTH DAKOTA. ISOLATED THUNDERSTORMS NEAR SIOUX FALLS HAD MOVED INTO MINNESOTA. TEMPERATURES REPORTED VARIED FROM 74 AT LEMMON TO 95 AT CHAMBERLAIN. THROUGH 5 PM CDT THUNDERSTORMS WILL CONTINUE NORTH CENTRAL THROUGH EAST CENTRAL SOUTH DAKOTA. SOME THUNDERSTORMS MAY PbRODUCE LARGE HAIL... DAMAGING WINDS OR HEAVY RAIN. THUNDERSTORMS WILL BECOME SCATTERED OVER WESTERN SOUTH DAKOTA. TEMPERATURES WILL RISE INTO OR REMAIN IN THE 80S AND 90S. BLOOM
Special weather statement, Jul 18, 3:29 PM CDT, 1 hour 5 minutes before
SDZ012-182130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 330 PM CDT WED JUL 18 1990 ...TORNADO WATCH MUCH OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 9 PM CDT... AT 320 PM CDT SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN HAD MOVED INTO EASTERN SOUTH DAKOTA. THE STORMS WERE LOCATED 60 MILES NORTH OF SIOUX FALLS JUST NORTH/ WEST OF BROOKINGS. THESE STORMS MAY ALSO PRODUCE GUSTY SURFACE WINDS...SMALL HAIL AND DANGEROUS LIGtHTNING AS THEY MOVE TO THE EAST AT 25 MILES AN HOUR. BUSS
Special weather statement, Jul 18, 4:01 PM CDT, 33 minutes before
IAZ001-004-005-141300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 400 PM CDT WED JUL 18 1990 ...A STRONG THUNDERSTORM HAS DEVELOPED IN EASTERN IDA COUNTY THIS AFTERNOON... A STRONG THUNDERSTORM HAS DEVELOPED NORTH OF IDA GROVE. THE STORM WILL LIKELY MOVE TO THE EAST. IDA GROVE AND GALVA ARE IN THE PATH OF THE STORM. THE STORM MAY PRODUCE PEA TO MARBLE SIZE HAIL AND LOCALLY HEAVY RAIN. IF YOU ARE IN EASTERN IDA COUNTY THEN YOU SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. HOPPES
Special weather statement, Jul 18, 4:20 PM CDT, 14 minutes before
SDZ012-182200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 420 PM CDT WED JUL 18 1990 ...TORNADO WATCH MUCH OF CENTRAL AND EASTERN SOUTH DAKOTA UNTIL 9 PM CDT... AT 415 PM CDT SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN AND SMALL HAIL WERE MOVING INTO NORTHWEST BROOKINGS COUNTY. THE STRONGEST STORMS WERE 20 MILES NORTHEAST OF BROOKINGS NEAR HENDRICKS MINNESOTA...JUST NORTH OF BROOKINGS AND 20 MILES WEST OF BROOKINGS NEAR ARLINGTON. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAINFALL... STRONG GUSTY WINDS AND HAIL. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. PEOPLE IN BROOKINGS COUNTY SHOULD REMAIN ALERT TO THESE THUNDERSTORMS.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 4:36 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 39 min |
| Jul 18, 4:36 AM CDT | Severe Thunderstorm Warning | FSD | Turner | 21 min |
| Jul 18, 5:16 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 29 min |
| Jul 18, 5:45 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 30 min |
| Jul 18, 10:17 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln | 43 min |
| Jul 18, 10:20 AM CDT | Severe Thunderstorm Warning | FSD | Union | 40 min |
| Jul 18, 10:54 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 66 min |
| Jul 18, 11:28 AM CDT | Severe Thunderstorm Warning | FSD | McCook, Turner | 47 min |
| Jul 18, 11:42 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 33 min |
| Jul 18, 12:12 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 33 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.