Alert archive / Minnesota / Flash Flood Warnings in 2007

Flash Flood Warning 6, NWS Twin Cities, MN

May 19, 2007Blue Earth County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at May 19, 2007, 9:16 PM CDT for Blue Earth County, Minnesota. It took effect at May 19, 2007, 9:21 PM CDT. It was in force for 114 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 19, 2007, 9:16 PM CDT (02:16 UTC)
In effect from
May 19, 2007, 9:21 PM CDT
Expired
May 19, 2007, 11:15 PM CDT
In force
114 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Blue Earth County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.3 hours before the alert went out and 98 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 2007-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2007-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.193958Sfc1 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
137 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
2040 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 200221
FFWMPX
MNC013-200415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
916 PM CDT SAT MAY 19 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 1115 PM CDT

* AT 916 PM CDT...RADAR DETECTED HEAVY RAIN PRODUCING THUNDERSTORMS  
  CONTINUING TO DEVELOP ACROSS MUCH OF THE WARNED AREA. THE STORMS   
  PRODUCING THE HEAVIEST RAIN WERE ABOUT 7 MILES WEST OF             
  MAPLETON...OR ABOUT 18 MILES SOUTH OF MANKATO. THESE STORMS WERE   
  MOVING SLOWLY EAST. REPORTS OF AS MUCH AS 3 TO 6 INCHES OF         
  RAINFALL DURING THE PAST 3 HOURS HAVE BEEN RECEIVED FROM MAPLETON. 
  EXPECT ADDITIONAL SLOW MOVING THUNDERSTORMS TO PRODUCE             
  MORE RAINFALL ON THE ALREADY SATURATED GROUND. BE AWARE OF QUICK   
  RISES ON LOCAL STREAMS OR RIVERS...INCLUDING THE COBB RIVER.

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...MAPLETON.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. JUST ONE FOOT OF RUSHING
WATER CAN SWEEP MOST VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4385 9429 4385 9378 4397 9378 4397 9428

$$
2 follow-up statements
000 
WGUS73 KMPX 200306
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1005 PM CDT SAT MAY 19 2007

MNC013-200415-
BLUE EARTH MN-
1005 PM CDT SAT MAY 19 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR BLUE
EARTH COUNTY...

AT 1005 PM CDT...DOPPLER RADAR INDICATED THAT SHOWERS AND 
THUNDERSTORMS WERE DECREASING IN COVERAGE AND INTENSITY ACROSS 
WESTERN BLUE EARTH COUNTY. THE HEAVIEST RAIN WAS FALLING FROM JUST 
EAST OF LAKE CRYSTAL TO GOOD THUNDER AND MOVING EAST. RAIN CONTINUED 
TO FALL ACROSS THE EASTERN PART OF THE COUNTY...INCLUDING OVER THE 
MAPLETON AREA. RAINFALL IS EXPECTED TO CONTINUE TO DECREASE ACROSS 
THE AREA OVER THE NEXT HOUR OR SO. IN THE MEANTIME...AN ADDITIONAL 
QUARTER TO HALF INCH OF RAIN WILL BE POSSIBLE ACROSS SOUTHEASTERN 
PARTS OF THE COUNTY OVER THE NEXT HOUR. RADAR ESTIMATES AND SPOTTER 
REPORTS INDICATE THAT BETWEEN 4 AND 7 INCHES OF RAIN HAS FALLEN 
ACROSS SOUTHERN PARTS OF BLUE EARTH COUNTY SINCE EARLY THIS EVENING.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...GOOD THUNDER...MAPLETON
AND ST CLAIR.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. 
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO FORGE 
FLOODED ROADWAYS BY FOOT OR AUTOMOBILE. IF YOUR VEHICLE 
STALLS...ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. JUST ONE FOOT OF RUSHING
WATER CAN SWEEP MOST VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4386 9411 4385 9378 4410 9379 4410 9410

$$

MDB/MTF
000 
WGUS73 KMPX 200415
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1114 PM CDT SAT MAY 19 2007

MNC013-200422-
BLUE EARTH MN-
1114 PM CDT SAT MAY 19 2007

...THE FLASH FLOOD WARNING FOR BLUE EARTH COUNTY HAS EXPIRED...AS
WATER LEVELS HAVE RECEDED IN THE WARNED AREA. THEREFORE...THE FLASH
FLOOD WARNING FOR BLUE EARTH COUNTY HAS EXPIRED.

ALTHOUGH HEAVY RAINFALL HAS ENDED ACROSS THE AREA...LIGHT RAIN WILL 
CONTINUE TO BE POSSIBLE INTO THE EARLY MORNING HOURS.

PLEASE REPORT ANY SEVERE WEATHER OR FLASH FLOODING TO YOUR LOCAL LAW 
ENFORCEMENT OFFICE AND TELL THEM TO RELAY YOUR REPORT TO THE 
NATIONAL WEATHER SERVICE.

LAT...LON 4386 9411 4385 9378 4410 9379 4410 9410

$$

LS

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 8:12 PM CDTFlash Flood WarningMPXBlue Earth63 min

Nearby

Flash Flood Warnings in Minnesota, 2007Every flash flood warning in 2007

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.