Alert archive / Minnesota / Flash Flood Warnings in 2005

Flash Flood Warning 41, NWS Twin Cities, MN

September 24, 2005Blue Earth County, Nicollet County, Watonwan County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Sep 24, 2005, 9:09 PM CDT for Blue Earth County, Nicollet County, Watonwan County, Minnesota. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 24, 2005, 9:09 PM CDT (02:09 UTC)
Expired
Sep 25, 2005, 3:15 AM CDT
In force
6 hr
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Blue Earth County, MN, Nicollet County, MN, Watonwan County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.2 hours before the alert went out and 107 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 2005-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2005-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
152 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 250213
FFWMPX
MNC013-103-165-250815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
909 PM CDT SAT SEP 24 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 315 AM CDT

* AT 909 PM CDT...THUNDERSTORMS WERE REPEATEDLY MOVING EASTWARD      
  ACROSS WATONWAN COUNTY...INCLUDING SAINT JAMES...AND WERE          
  BEGINNING TO MOVE INTO BLUE EARTH AND NICOLLET COUNTIES IN SOUTH   
  CENTRAL MINNESOTA. 

  RAINFALL RATES WITH THE STRONGER THUNDERSTORMS EXCEED TWO AND ONE  
  HALF INCHES PER HOUR.  STORM ACCUMULATIONS WILL LIKELY EXCEED      
  SEVERAL INCHES BEFORE 3 AM. 

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...SAINT                
  JAMES...MANKATO...NORTH MANKATO...AMBOY...BUTTERFIELD...
  EAGLE LAKE...GOOD THUNDER...LA SALLE...LAKE CRYSTAL AND LEWISVILLE.

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.

LAT...LON 4405 9484 4386 9486 4390 9382 4418 9381
      4435 9431 4412 9434

$$

RJN
2 follow-up statements
000 
WGUS73 KMPX 250336
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1032 PM CDT SAT SEP 24 2005

MNC013-103-165-250815-
NICOLLET MN-BLUE EARTH MN-WATONWAN MN-
1032 PM CDT SAT SEP 24 2005

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 AM CDT FOR
WATONWAN...BLUE EARTH AND NICOLLET COUNTIES...

AT 1032 PM CDT...A WEATHER SPOTTER ESTIMATED THAT NEARLY 3 INCHES OF
RAIN HAS FALLEN DURING THE PAST 2 HOURS OVER THE WARNED AREA.

A WEATHER SPOTTER REPORTED WATER FOUR AND ONE HALF FEET DEEP IN AN 
UNDERPASS IN SAINT JAMES.  ELSEWHERE IN SAINT JAMES...THE WATONWAN 
COUNTY SHERIFF REPORTED THE STREETS WERE FILLING UP WITH WATER...AND 
THAT THE STORM DRAINS WERE NOT HANDLING THE HEAVY RAINFALL. 

EXPECT ADDITIONAL THUNDERSTORMS TO REDEVELOP AND PASS OVER THE WARNED
AREA... RESULTING IN EXCESSIVE RAINFALL.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...MADELIA...MANKATO AND
ST JAMES.

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.

LAT...LON 4405 9484 4386 9486 4390 9382 4418 9381
      4435 9431 4412 9434

$$

RJN
000 
WGUS73 KMPX 250817
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
313 AM CDT SUN SEP 25 2005

MNC013-103-165-250823-
NICOLLET MN-BLUE EARTH MN-WATONWAN MN-
313 AM CDT SUN SEP 25 2005

...THE FLASH FLOOD WARNING FOR WATONWAN...BLUE EARTH AND NICOLLET 
COUNTIES WILL BE ALLOWED TO EXPIRE...

ALTHOUGH LIGHT TO MODERATE RAINFALL WILL CONTINUE ACROSS 
WATONWAN...BLUE EARTH AND NICOLLET COUNTIES FOR MUCH OF THE 
REMAINDER OF THE MORNING...THE HEAVIEST RAINS HAVE MOVED SOUTH OF 
THE WARNED AREA. THEREFORE...THE FLASH FLOOD WARNING WILL BE ALLOWED 
TO EXPIRE AT 315 AM.

RADAR ESTIMATES THAT UP TO 8 INCHES OF RAINFALL HAS FALLEN ALONG AND 
SOUTH OF A LINE FROM ST JAMES TO MAPLETON...ALTHOUGH MUCH OF THIS 
FELL SEVERAL HOURS AGO. STANDING WATER MAY REMAIN THROUGH MUCH OF 
THE EARLY MORNING IN ISOLATED LOCATIONS...ESPECIALLY ACROSS SOUTHERN 
WATONWAN AND BLUE EARTH COUNTIES. RAINFALL RATES ARE EXPECTED TO 
REMAIN LOW ENOUGH FOR THE REMAINDER OF THE MORNING THAT ADDITIONAL 
FLASH FLOODING IS NOT EXPECTED.

LAT...LON 4405 9484 4386 9486 4390 9382 4418 9381
      4435 9431 4412 9434

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 10:16 PM CDTFlash Flood WarningMPXSteele, Waseca6 hr
Sep 24, 10:56 PM CDTFlash Flood WarningMPXGoodhue, Rice6 hr
Sep 24, 11:06 PM CDTFlash Flood WarningMPXFaribault, Freeborn, Martin3 hr
Sep 25, 1:50 AM CDTFlash Flood WarningMPXFaribault, Freeborn, Martin3 hr

Nearby

Flash Flood Warnings in Minnesota, 2005Every flash flood warning in 2005

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.