Alert archive / Minnesota / Flash Flood Warnings in 1990
Flash Flood Warning 12, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jul 28, 1990, 5:44 PM CDT for Cottonwood County, Jackson County, Minnesota. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 28, 1990, 5:44 PM CDT (22:44 UTC)
- Expired
- Jul 28, 1990, 7:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Cottonwood County, MN, Jackson County, MN
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
Minneapolis, MN (KSTC), launched 12:00Z, 10.7 hours before the alert went out and 168 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
- 31 J/kg
- Mixed-layer CIN
- -254 J/kg
- Mixed-layer LCL
- 668 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 51 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 282247
FFWFSD
MNC033-063-290045-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
544 PM CDT SAT JUL 28 1990
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 745 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST MINNESOTA
...COTTONWOOD...JACKSON
REPORTS OF MORE THAN 2 INCHS OF RAIN IN ONE HOURS AND REPORTS OF
WATER OVER ROADS HAVE BEEN RECEIVED.
RADAR CONTNUE TO SHOW HEAVY RAIN OVER EXTREME EASTERN COTTON AND
EXTREME EASTERN JACKSON COUNTIES IN SOUTHWEST MINNESOTA.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.What forecasters said that day
The local office's own words before this flash flood 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 28, 2:10 PM CDT, 3 hours 34 minutes before
IAZ001-004-005-282020- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 210 PM CDT SAT JUL 28 1990 A LINE OF STRONG SHOWERS AND THUNDERSTORMS WAS MOVING INTO SIOUXLAND. THE LINE WAS LOCATED FROM 50 MILES NORTH OF SIOUX CITY TO NORFOLK NEBRASKA. THIS LINE IS MOVING EAST AT 20 MPH. THESE STORMS MAY PRODUCE SMALL HAIL AND VERY HEAVY RAIN AS THEY MOVE INTO UNION AND DIXON COUNTIES BY 3 PM. TANNER
Special weather statement, Jul 28, 2:35 PM CDT, 3 hours 9 minutes before
SDZ018-020-MNZ017-IA001-004-282030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 230 PM CDT SAT JUL 28 1990 ...LINE OF STRONG THUNDERSTORMS IN TRI/STATE AREA SOUTHEAST OF SIOUX FALLS... AT 225 PM CDT A LINE OF STRONG THUNDERSTORMS EXTENDED SOUTHWESTWARD FROM 20 MILES EAST OF SIOUX FALLS IN EXTREME SOUTHWEST MINNESOTA TO 5 MILES SOUTHWEST OF VERMILLION OR 30 MILES NORTHWEST OF SIOUX CITY IOWA. THESE STRONG THUNDERSTORMS WERE CAPABLE OF PRODUCING STRONG GUSTY WINDS... VERY HEAVY RAIN...SOME HAIL...AND FREQUENT LIGHTNING AS THEY MOVE SLOWLY EAST OVER EXTREME SOUTHEAST SOUTH DAKOTA..SOUTHWEST MINNESOTA... AND NORTHWEST IOWA THROUGH 5 PM CDT THIS AFTERNOON. IN ADDITION BOATERS ON ANY LAKES INCLUDING THE LEWIS AND CLARK RESERVIOR SHOULD TAKE COVER IF THESE THUNDERSTORMS APPROACH YOUR AREA. RYRHOLM
Special weather statement, Jul 28, 3:52 PM CDT, 1 hour 52 minutes before
SDZ018-MNZ017-282130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 350 PM CDT SAT JUL 28 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN PARTS OF NORTHWEST IOWA AND SOUTHWEST MINNESOTA... AT 345 PM CDT A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED ALONG THE BIG SIOUX RIVER ENTERING WESTERN SIOUX COUNTY IN IOWA. THESE THUNDERSTORMS COULD ALSO PRODUCE GUSTY WINDS AND SMALL HAIL AS THEY MOVE EAST THROUGH SIOUX COUNTY...PC JACKSON. THESE THUNDERSTORMS MAY ALSO PRODUCE GUSTY WINDS AND SMALL HAIL AS THEY MOVE EAST INTO SOUTHERN COTTONWOOD AND EASTERN JACKSON COUNTIES OF MINNESOTA...POSSIBLY AFFECTING THE CITIES OF WINDOM AND JACKSON BEFORE 430 PM CDT. WILLIAMS
Special weather statement, Jul 28, 4:20 PM CDT, 1 hour 24 minutes before
IAZ001-004-005-282220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 420 PM CDT SAT JUL 28 1990 AT 415 PM A BAND OF THUNDERSTORMS WITH HEAVY RAIN EXTENDED 20 MILES EAST OF THE BIG SIOUX RIVER FROM MINNESOTA TO SIOUX CITY...THEN 20 MILES EAST OF THE MISSOURI RIVER FROM SIOUX CITY TO OMAHA. THESE THUNDERSTORMS WILL PRODUCE WIND GUSTS TO NEAR 50 MILES AN HOUR... SMALL HAIL...HEAVY RAIN AND DANGEROUS LIGHTNING AS THEY MOVE EAST AT 25 MILES AN HOUR. THE HEAVY RAIN COULD QUICKLY FLOOD LOW LYING AREAS. THE THUNDERSTORMS SHOULD EXTEND FROM PRIMGHAR TO IDA GROVE BY 515PM. QUINN
Special weather statement, Jul 28, 4:57 PM CDT, 47 minutes before
SDZ017-018-020-MNZ017-IA001-004-282300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 456 PM CDT SAT JUL 28 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN PARTS OF SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA AND NORTHWEST IOWA... AT 450 PM CDT A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM 50 MILES EAST OF SIOUX FALLS NEAR SIBLEY IOWA TO 75 MILES NORTH/ EAST OF SIOUX FALLS NEAR MOUNTAIN LAKE MINNESOTA. THESE STORMS MAY PRODUCE SMALL HAIL...GUSTY WINDS AND HEAVY RAIN. OTHER THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED EAST OF A LINE FROM 30 MILES WEST OF YANKTON NEAR AVON TO 30 MIELS NORTHWEST OF SIOUX FALLS NEAR MADISON. MOVEMENT WAS EAST AT 15 MILES AN HOUR. BERG
Special weather statement, Jul 28, 5:16 PM CDT, 28 minutes before
IAZ001-004-005-282310- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 515 PM CDT SAT JUL 28 1990 AT 510 PM SHOWERS AND THUNDERSTORMS COVERED MOST OF WESTERN NEBRASKA SOUTHEAST SOUTH DAVKOTA AND NORTHEAST NEBRASKA. THE HEAVIEST RAIN WAS IN AN AREA BOUNDED BY SERGEANT BLUFF...KINGSLEY AND GALVA IOWA. THE RAIN WAS MOVING EAST AT 20 MILES AN HOUR. BANDS OF HEAVY RAIN WEREA SL OCSTAETER DRFMOS OIXUC TI YOT9 0IMEL SONTRWHSE TENRAN OI
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 7:13 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 47 min |
| Jul 28, 4:40 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood | 50 min |
| Jul 28, 4:46 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 59 min |
Nearby
Flash Flood Warnings in Minnesota, 1990Every flash flood 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.