Alert archive / Iowa / Flash Flood Warnings in 2000

Flash Flood Warning 9, NWS La Crosse, WI

June 1, 2000Allamakee County, Winneshiek County, Iowa; Crawford County, Richland County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Jun 1, 2000, 12:22 AM CDT for Allamakee County, Winneshiek County, Iowa; Crawford County, Richland County, Wisconsin. 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 1, 2000, 12:22 AM CDT (05:22 UTC)
Expired
Jun 1, 2000, 6:00 AM CDT
In force
6 hr
Issued by
NWS La Crosse, WI
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Allamakee County, IA, Winneshiek County, IA, Crawford County, WI, Richland County, WI

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 5.4 hours before the alert went out and 203 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 2000-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1028 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, Davenport, at 00:00Z on 2000-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 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
1028 J/kg
Mixed-layer CIN
-177 J/kg
Mixed-layer LCL
935 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
10.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KARX 010524
FFWARX
IAC005-191-WIC023-103-011100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1222 AM CDT THU JUN 1 2000

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ALLAMAKEE COUNTY IN NORTHEAST IOWA
  WINNESHIEK COUNTY IN NORTHEAST IOWA
  RICHLAND COUNTY IN SOUTHWEST WISCONSIN
  CRAWFORD COUNTY IN SOUTHWEST WISCONSIN

* UNTIL 600 AM CDT

* AT 1222 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS THE AREA.
  THIS ACTIVITY WAS MOVING EAST AT 25 MPH.

* SOME LOCATIONS WHICH MAY BE AFFECTED...
  LANSING
  DECORAH
  WAUKON

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.

RIECK

LAT...LON 4340 9194 4317 9195 4330 9040 4338 9052

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 8:30 PM CDTSevere Thunderstorm WarningARXClayton45 min
May 31, 9:07 PM CDTSevere Thunderstorm WarningARXMitchell53 min
May 31, 10:00 PM CDTSevere Thunderstorm WarningARXMitchell60 min
May 31, 10:27 PM CDTFlash Flood WarningARXMitchell5 hr
May 31, 10:35 PM CDTSevere Thunderstorm WarningARXAllamakee55 min
May 31, 10:49 PM CDTFlash Flood WarningARXHoward4 hr
Jun 1, 12:02 AM CDTSevere Thunderstorm WarningARXHoward, Mitchell58 min
Jun 1, 12:14 AM CDTSevere Thunderstorm WarningARXChickasaw61 min
Jun 1, 1:35 AM CDTSevere Thunderstorm WarningARXAllamakee, Clayton55 min
Jun 1, 6:02 AM CDTFlash Flood WarningARXAllamakee4 hr
May 31, 8:34 PM CDTSevere Thunderstorm WarningARXGrant56 min
May 31, 9:58 PM CDTFlash Flood WarningARXGrant4 hr
May 31, 10:11 PM CDTSevere Thunderstorm WarningARXGrant64 min
May 31, 11:10 PM CDTSevere Thunderstorm WarningARXCrawford, Vernon65 min
May 31, 11:40 PM CDTFlash Flood WarningARXVernon3 hr
Jun 1, 12:06 AM CDTSevere Thunderstorm WarningARXRichland69 min
Jun 1, 1:55 AM CDTFlash Flood WarningARXGrant4 hr
Jun 1, 2:45 AM CDTFlash Flood WarningARXVernon3 hr
Jun 1, 10:00 AM CDTFlash Flood WarningARXCrawford, Richland, Vernon6 hr
Jun 1, 1:30 PM CDTSevere Thunderstorm WarningARXTrempealeau60 min
Jun 1, 2:19 PM CDTFlash Flood WarningARXJackson, Trempealeau3 hr
Jun 1, 2:37 PM CDTSevere Thunderstorm WarningARXJackson, La Crosse, Monroe53 min
Jun 1, 3:10 PM CDTTornado WarningARXMonroe35 min
Jun 1, 3:35 PM CDTTornado WarningARXJuneau55 min
Jun 1, 3:48 PM CDTTornado WarningARXMonroe27 min
Jun 1, 4:04 PM CDTTornado WarningARXAdams56 min
Jun 1, 4:24 PM CDTSevere Thunderstorm WarningARXRichland, Vernon66 min
Jun 1, 4:30 PM CDTSevere Thunderstorm WarningARXJuneau60 min
Jun 1, 5:37 PM CDTSevere Thunderstorm WarningARXGrant38 min

Nearby

Flash Flood Warnings in Iowa, 2000Flash Flood Warnings in Wisconsin, 2000Every flash flood warning in 2000

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.