Alert archive / Iowa / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS La Crosse, WI

June 1, 2014Mitchell County, Iowa; Mower County, Minnesota

NWS La Crosse, WI issued this flash flood warning at Jun 1, 2014, 3:07 PM CDT for Mitchell County, Iowa; Mower 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
Jun 1, 2014, 3:07 PM CDT (20:07 UTC)
Expired
Jun 1, 2014, 9:00 PM CDT
In force
6 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
None

Counties Mitchell County, IA, Mower County, MN

The radar

The La Crosse radar (KARX), 134 km from the middle of the area, began a volume at 20:08 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

Minneapolis, MN (KMPX), launched 12:00Z, 8.1 hours before the alert went out and 162 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 12:00Z on 2014-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 327 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 12:00Z on 2014-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
327 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
497 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

192 
WGUS53 KARX 012007
FFWARX
IAC131-MNC099-020200-
/O.NEW.KARX.FF.W.0002.140601T2007Z-140602T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
307 PM CDT SUN JUN 1 2014

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MITCHELL COUNTY IN NORTH CENTRAL IOWA...
  MOWER COUNTY IN SOUTHEAST MINNESOTA...

* UNTIL 900 PM CDT
    
* AT 306 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLOODED STREETS IN 
  AUSTIN. IN ADDITION...DOPPLER RADAR HAS INDICATED 1 TO 3 INCHES OF 
  RAINFALL HAS OCCURRED ACROSS MUCH OF MOWER AND MITCHELL COUNTIES 
  OVER THE PAST 3 HOURS. AN ADDITIONAL 1 TO 3 INCHES OF RAINFALL IS 
  POSSIBLE...HEAVIEST OVER MITCHELL COUNTY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  AUSTIN...OSAGE...GRAND MEADOW...ST. ANSGAR...LE ROY...ADAMS...
  RICEVILLE...BROWNSDALE...LYLE...STACYVILLE...ROSE CREEK...RAMSEY...
  DEXTER...MAPLEVIEW...ELKTON...MITCHELL...MCINTIRE...CARPENTER...
  ORCHARD AND TAOPI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4374 9304 4375 9245 4350 9245 4350 9256
      4321 9255 4321 9302 4350 9302 4350 9304

$$

AJ
2 follow-up statements
508 
WGUS73 KARX 012153
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
453 PM CDT SUN JUN 1 2014

IAC131-MNC099-020200-
/O.CON.KARX.FF.W.0002.000000T0000Z-140602T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL IA-MOWER MN-
453 PM CDT SUN JUN 1 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
MITCHELL AND MOWER COUNTIES...

AT 447 PM CDT...DOPPLER RADAR SHOWED THAT THE RAIN HAS LET UP IN 
INTENSITY ACROSS MOWER AND MITCHELL COUNTIES. REPORTS FROM LAW 
ENFORCEMENT SUGGEST THAT THE STREET FLOODING THAT HAD OCCURRED IN 
AUSTIN HAS ENDED. HOWEVER...ANYWHERE FROM 2 TO 4 INCHES HAS FALLEN 
ACCORDING TO AUTOMATED OBSERVATIONS AND RADAR ESTIMATES. 

MORE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO MOVE IN FROM THE WEST 
OVER THE NEXT HOUR AND PERSIST THROUGH MUCH OF THE 
EVENING...ACCUMULATING ANOTHER 1 TO 2 INCHES. THIS ADDITIONAL 
RAINFALL WILL RESULT IN FLASH FLOODING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AUSTIN...OSAGE...GRAND MEADOW...ST. ANSGAR...LE ROY...ADAMS...
RICEVILLE...BROWNSDALE...LYLE...STACYVILLE...ROSE CREEK...RAMSEY...
DEXTER...MAPLEVIEW...ELKTON...MITCHELL...MCINTIRE...CARPENTER...
ORCHARD AND TAOPI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4374 9304 4375 9245 4350 9245 4350 9256
      4321 9255 4321 9302 4350 9302 4350 9304

$$

AJ
620 
WGUS73 KARX 020004
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
704 PM CDT SUN JUN 1 2014

IAC131-MNC099-020012-
/O.CAN.KARX.FF.W.0002.000000T0000Z-140602T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MITCHELL IA-MOWER MN-
704 PM CDT SUN JUN 1 2014

...THE FLASH FLOOD WARNING FOR MITCHELL AND MOWER COUNTIES IS
CANCELLED...

LOCAL EMERGENCY MANAGEMENT AND LAW ENFORCMENT HAVE REPORTED THAT 
CONDITIONS HAVE IMPROVED...ALTHOUGH MANY CREEKS CONTINUE TO RUN 
HIGH. THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

HOWEVER...MORE RAIN IS ON THE WAY...AND IF IT BECOMES 
HEAVY...ADDITIONAL FLASH FLOODING COULD OCCUR. 

LAT...LON 4374 9304 4375 9245 4350 9245 4350 9256
      4321 9255 4321 9302 4350 9302 4350 9304

$$

RIECK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 2:43 PM CDTFlash Flood WatchARXAllamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek13 hr
Jun 1, 8:53 AM CDTSpecial Weather StatementARXWinona37 min
Jun 1, 9:49 AM CDTRiver Flood WatchARXWabasha37 hr
Jun 1, 9:50 AM CDTSpecial Weather StatementARXWinona40 min
Jun 1, 2:44 PM CDTSevere Thunderstorm WarningARXMower31 min
Jun 1, 3:10 PM CDTSevere Thunderstorm WarningARXFillmore50 min

Nearby

Flash Flood Warnings in Iowa, 2014Flash Flood Warnings in Minnesota, 2014Every flash flood warning in 2014

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.