Alert archive / Minnesota / Flash Flood Warnings in 2006

Flash Flood Warning 2, NWS La Crosse, WI

August 24, 2006Dodge County, Olmsted County, Minnesota

NWS La Crosse, WI issued this flash flood warning at Aug 24, 2006, 11:24 PM CDT for Dodge County, Olmsted County, Minnesota. It was in force for 3 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
Aug 24, 2006, 11:24 PM CDT (04:24 UTC)
Expired
Aug 25, 2006, 2:30 AM CDT
In force
3 hr
Issued by
NWS La Crosse, WI
Area
Counties, with a storm outline in the text

Counties Dodge County, MN, Olmsted County, MN

The radar

The La Crosse radar (KARX), 111 km from the middle of the area, began a volume at 04:24 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.4 hours before the alert went out and 313 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, Davenport, at 00:00Z on 2006-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 228 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, Davenport, at 00:00Z on 2006-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
228 J/kg
Mixed-layer CIN
-313 J/kg
Mixed-layer LCL
1898 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
197 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 KARX 250431
FFWARX
MNC039-109-250730-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1124 PM CDT THU AUG 24 2006

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DODGE COUNTY IN SOUTHEAST MINNESOTA
  OLMSTED COUNTY IN SOUTHEAST MINNESOTA

* UNTIL 230 AM CDT

* AT 1124 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED           
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE WARNED  
  AREA.  ESTIMATES FROM RADAR INDICATED THAT ABOUT 1 TO 2 INCHES OF  
  RAIN HAS FALLEN OVER THE PAST 1 HOUR OVER THE WARNED AREA. MORE    
  RAIN IS EXPECTED THROUGH 2 AM. 

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BYRON...CLAREMONT...
  DODGE CENTER...DOVER...EYOTA...HAYFIELD AND KASSON.

THUNDERSTORMS ARE EXPECTED TO CONTINUE TO PRODUCE TORRENTIAL RAINS 
FOR THE NEXT TWO HOURS. WATER LEVELS AROUND AND ON ROADS...IN 
RIVERS...CREEKS...AND STREAMS...WILL BE ON THE INCREASE THROUGH 1 
AM. 

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. REMEMBER...TURN AROUND DONT 
DROWN.

LAT...LON 4385 9304 4419 9305 4419 9232 4410 9234
      4410 9209 4385 9211 4385 9249

$$

BAUMGARDT
3 follow-up statements
000 
WGUS73 KARX 250505
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1202 AM CDT FRI AUG 25 2006

MNC039-109-250730-
DODGE MN-OLMSTED MN-
1202 AM CDT FRI AUG 25 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR
OLMSTED AND DODGE COUNTIES...

AT 1153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH TORRENTIAL RAINFALL ACROSS THE WARNED 
AREA. RADAR INDICATES RAINFALL RATES OF 1 TO 1.5 INCHES PER HOUR 
WHICH WILL CAUSE FLOODING ISSUES ON ALREADY WET SOILS FROM THE EARLY 
EVENING STORMS. 

LOCATIONS WITH THE GREATEST RISK OF FLASH FLOODING INCLUDE 
ROCHESTER...MANTORVILLE...DODGE CENTER...WEST 
CONCORD...STEWARTVILLE...ORONOCO...KASSON AND HAYFIELD. 

THE FOLLOWING CREEKS...AND STREAMS WILL ALSO HAVE SIGNIFICANT 
RISES...SOUTH BRANCH MIDDLE FORK OF THE ZUMBRO RIVER...DODGE CENTER 
CREEK...HENSLIN CREEK...AND MASTIN CREEK.

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.

LAT...LON 4385 9304 4419 9305 4419 9232 4410 9234
      4410 9209 4385 9211 4385 9249

$$

BAUMGARDT
000 
WGUS73 KARX 250615
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
115 AM CDT FRI AUG 25 2006

MNC039-109-250730-
DODGE MN-OLMSTED MN-
115 AM CDT FRI AUG 25 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR
OLMSTED AND DODGE COUNTIES...

AS OF 1 AM CDT...LAW ENFORCEMENT OFFICIALS REPORTED WATER...WHICH 
WAS A FOOT AND A HALF DEEP...IN THE TOWN OF DODGE CENTER. IN 
ADDITION...BASEMENT FLOODING HAS BEEN REPORTED IN DODGE CENTER.

AT 115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
MOST OF THE SLOW MOVING THUNDERSTORMS WITH THE HEAVIEST RAINFALL HAD 
MOVED EAST AND SOUTH OF THE WARNED AREA.

LOCATIONS WITH THE GREATEST RISK OF FLASH FLOODING INCLUDE 
ROCHESTER...MANTORVILLE...DODGE CENTER...WEST 
CONCORD...STEWARTVILLE...ORONOCO...KASSON AND HAYFIELD.

THE FOLLOWING CREEKS...AND STREAMS WILL ALSO HAVE SIGNIFICANT 
RISES...SOUTH BRANCH MIDDLE FORK OF THE ZUMBRO RIVER...DODGE CENTER 
CREEK...HENSLIN CREEK...AND MASTIN CREEK.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND
PICKUPS. REMEMBER...TURN AROUND DONT DROWN.

LAT...LON 4385 9304 4419 9305 4419 9232 4410 9234
      4410 9209 4385 9211 4385 9249

$$

THOMPSON
000 
WGUS73 KARX 250728
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
228 AM CDT FRI AUG 25 2006

MNC039-109-250738-
DODGE MN-OLMSTED MN-
228 AM CDT FRI AUG 25 2006

...THE FLASH FLOOD WARNING FOR OLMSTED AND DODGE COUNTIES EXPIRES AT
230 AM CDT...

THE THREAT FOR FLASH FLOODING HAS ENDED ACROSS THE WARNED AREA. 
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4385 9304 4419 9305 4419 9232 4410 9234
      4410 9209 4385 9211 4385 9249

$$

THOMPSON

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 7:15 PM CDTTornado WarningARXDodge, Olmsted45 min
Aug 24, 7:40 PM CDTSevere Thunderstorm WarningARXWabasha, Winona65 min
Aug 24, 8:00 PM CDTSevere Thunderstorm WarningARXOlmsted30 min
Aug 24, 8:13 PM CDTSevere Thunderstorm WarningARXDodge, Fillmore, Mower, Olmsted62 min
Aug 24, 9:12 PM CDTSevere Thunderstorm WarningARXFillmore, Houston63 min
Aug 24, 10:46 PM CDTFlash Flood WarningARXMower3 hr

Nearby

Flash Flood Warnings in Minnesota, 2006Every flash flood warning in 2006

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; radar from the NEXRAD Level II archive.