Alert archive / Minnesota / Flash Flood Warnings in 1992

Flash Flood Warning 6, NWS Twin Cities, MN

September 16, 1992Goodhue County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Sep 16, 1992, 3:22 AM CDT for Goodhue County, Minnesota. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
Sep 16, 1992, 3:22 AM CDT (08:22 UTC)
Expired
Sep 16, 1992, 4:00 AM CDT
In force
38 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Goodhue County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 8.4 hours before the alert went out and 85 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1992-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1883 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1992-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 350 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1883 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
717 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
350 m²/s²
0-3 km storm-relative helicity
456 m²/s²
Significant tornado parameter
2.8
Supercell composite
8.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KRST 160826
FFWRST
MNC049-160900-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
322 AM CDT WED SEP 16 1992
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
FLASH FLOOD WARNING         EFFECTIVE UNTIL  400 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MINNESOTA
 
   ...GOODHUE COUNTY
 
AT 310 AM...RADAR INDICATED STRONG THUNDERSTORMS WITH VERY HEAVY RAINS
PERSISTING IN GOODHUE COUNTY. MEASUREMENTS OF UP TO 7.5 INCHES OF RAIN
HAVE BEEN REPORTED.
 
THERE IS STILL THE POTENTIAL OF SEEING UP TO ANOTHER INCH OF RAINFALL
OVER PORTIONS OF GOODHUE COUNTY. THIS WILL ONLY MAGINFY THE EXISTING
FLOOD PROBLEM.
 
THE RAINS WERE MOVING EAST AT 30 MILES AN HOUR AND SHOULD MOVE INTO
WISCONSIN BY 400AM CDT.
 
PERSONS IN GOODHUE COUNTY ARE ADVISED TO KEEP ABREAST OF THE FLOOD
POTENTIAL AND SHOULD BE PREPARED TO ESCAPE TO HIGHER GROUND SHOULD
FLOODING OCCUR.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 15, 7:22 PM CDTSevere Thunderstorm WarningMPXRice38 min
Sep 15, 9:16 PM CDTSevere Thunderstorm WarningMPXRice29 min
Sep 15, 10:11 PM CDTFlash Flood WarningMPXDakota, Hennepin, Scott4 hr
Sep 16, 2:04 AM CDTFlash Flood WarningMPXDakota, Hennepin, Scott116 min
Sep 16, 3:47 AM CDTSevere Thunderstorm WarningMPXOlmsted43 min
Sep 16, 5:09 PM CDTTornado WarningMPXMille Lacs18 min

Nearby

Flash Flood Warnings in Minnesota, 1992Every flash flood warning in 1992

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.