Alert archive / Minnesota / Flash Flood Warnings in 1991
Flash Flood Warning 6, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Jun 15, 1991, 1:39 AM CDT for Wabasha County, Winona County, Minnesota. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 15, 1991, 1:39 AM CDT (06:39 UTC)
- Expired
- Jun 15, 1991, 4:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Wabasha County, MN, Winona County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 6.7 hours before the alert went out and 149 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
- 807 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 125 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 KRST 150707 COR
FFWRST
MNC157-169-150945-
...CORRECT TRANSMISSION DATE...
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
139 AM CDT SAT JUN 15 1991
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 400 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN SOUTHEAST MINNESOTA
...WABASHA COUNTY...NORTHWESTERN WINONA COUNTY
AT 1 30 AM RADAR INDICATED VERY HEAVY RAIN OVER NORTHWEST WINONA AND ALL
OF WABASHA COUNTIES. WHITEWATER STATE PARK REPORTED 1.85 INCHES OF
PRECIPITATION WITHIN A ONE HOUR PERIOD.
SOME CITIES INCLUDED IN THIS WARNING ARE WABASHA...WEAVER...LAKE CITY
AND WHITEWATER STATE PARK.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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 HIG,HER 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, Jun 15, 12:56 AM CDT, 43 minutes before
SHORT RANGE WEATHER SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1255 AM CDT SAT JUN 15 1991 AT 1225 AM...THUNDERSTORMS WITH HEAVY RAIN WERE MOVING ACROSS SOUTHERN MINNESOTA. THE AREA OF THUNDERSTORMS WAS SOUTH OF A LINE FROM JUST NORTH OF MANKATO TO ABOUT 10 MILES NORTH OF LACROSSE. THE THUNDERSTORMS WITH THE HEAVIEST RAIN AND POSSIBLY PEA TO MARBLE SIZE HAIL AND GUSTY WINDS WERE LOCATED FROM NEAR MANKATO TO WASECA AND FROM ROCHESTER TO 15 MILES EAST OF ROCHESTER. THE STORMS WERE MOVING EAST-NORTHEAST AT ABOUT 25 MILES AN HOUR AND SHOULD BE ALONG A LE SEUR...FARIBAULT TO JUST NORTH OF WINONA LINE BY ABOUT 130 AM. SOME OF THESE STORMS COULD DROP ABOUT AN INCH OF RAIN IN 45 MIINUTES CAUSING PONDING OF WATER IN LOW LYING AREAS AND UNDERPASSES. ELSEWHERE LIGHTER RAIN WAS OVER SOUTHWEST MINNESOTA SOUTH OF A LINE FROM MANKATO TO NEAR REDWOOD FALLS.
Special weather statement, Jun 15, 12:58 AM CDT, 41 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 1255 AM CDT SAT JUN 15 1991 AT 1225 AM...THUNDERSTORMS WITH HEAVY RAIN WERE MOVING ACROSS SOUTHERN MINNESOTA. THE AREA OF THUNDERSTORMS WAS SOUTH OF A LINE FROM JUST NORTH OF MANKATO TO ABOUT 10 MILES NORTH OF LACROSSE. THE THUNDERSTORMS WITH THE HEAVIEST RAIN AND POSSIBLY PEA TO MARBLE SIZE HAIL AND GUSTY WINDS WERE LOCATED FROM NEAR MANKATO TO WASECA AND FROM ROCHESTER TO 15 MILES EAST OF ROCHESTER. THE STORMS WERE MOVING EAST-NORTHEAST AT ABOUT 25 MILES AN HOUR AND SHOULD BE ALONG A LE SEUR...FARIBAULT TO JUST NORTH OF WINONA LINE BY ABOUT 130 AM. SOME OF THESE STORMS COULD DROP ABOUT AN INCH OOF RAIN IN 45 MINUTES CAUSING PONDING OF WATER IN LOW LYING AREAS AND UNDERPASSES. ELSEWHERE LIGHTER RAIN WAS OVER SOUTHWEST MINNESOTA SOUTH OF A LINE FROM MANKATO TO NEAR REDWOOD FALLS.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 12:06 AM CDT | Severe Thunderstorm Warning | MPX | Mower | 39 min |
| Jun 15, 5:04 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Swift | 41 min |
Nearby
Flash Flood Warnings in Minnesota, 1991Every flash flood warning in 1991
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.