Alert archive / Wisconsin / Flash Flood Warnings in 2003

Flash Flood Warning 7, NWS Twin Cities, MN

June 24, 2003Polk County, Wisconsin

NWS Twin Cities, MN issued this flash flood warning at Jun 24, 2003, 10:27 PM CDT for Polk County, Wisconsin. It was in force for 2 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 24, 2003, 10:27 PM CDT (03:27 UTC)
Expired
Jun 25, 2003, 12:30 AM CDT
In force
2 hr
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Polk County, WI

The radar

The Minneapolis radar (KMPX), 113 km from the middle of the area, began a volume at 03:30 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 00:00Z, 3.5 hours before the alert went out and 115 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 2003-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5332 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, Minneapolis, MN at 00:00Z on 2003-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
5332 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
7.4
Supercell composite
34.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 250328
FFWMPX
WIC095-250530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1027 PM CDT TUE JUN 24 2003

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  POLK COUNTY IN NORTHWEST WISCONSIN

* UNTIL 1230 AM CDT

* AT 1027 PM CDT...RADAR INDICATED.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA.

ABSOLUTELY DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER
COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED. MOVE TO HIGHER GROUND.

LAT...LON 4566 9230 4525 9230 4526 9257 4560 9271

$$
EDWARDS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:29 PM CDTSevere Thunderstorm WarningMPXPolk46 min
Jun 24, 8:43 PM CDTTornado WarningMPXPolk47 min
Jun 24, 11:21 PM CDTFlash Flood WarningMPXPolk, Saint Croix4 hr
Jun 24, 11:32 PM CDTSevere Thunderstorm WarningMPXPierce, Polk, Saint Croix43 min
Jun 25, 12:16 AM CDTSevere Thunderstorm WarningMPXBarron, Dunn, Polk, Saint Croix44 min

Nearby

Flash Flood Warnings in Wisconsin, 2003Every flash flood warning in 2003

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.