Alert archive / Minnesota / Flash Flood Warnings in 2004

Flash Flood Warning 21, NWS Sioux Falls, SD

July 11, 2004Cottonwood County, Murray County, Minnesota

NWS Sioux Falls, SD issued this flash flood warning at Jul 11, 2004, 4:54 AM CDT for Cottonwood County, Murray County, Minnesota. It was in force for 81 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 11, 2004, 4:54 AM CDT (09:54 UTC)
Expired
Jul 11, 2004, 6:15 AM CDT
In force
81 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

Counties Cottonwood County, MN, Murray County, MN

The radar

The Sioux Falls radar (KFSD), 102 km from the middle of the area, began a volume at 09:54 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, 9.9 hours before the alert went out and 185 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 2004-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1325 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 2004-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1325 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1007 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFSD 110954
FFWFSD
MNC033-101-111115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
454 AM CDT SUN JUL 11 2004

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COTTONWOOD COUNTY IN SOUTHWEST MINNESOTA
  MURRAY COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 615 AM CDT

* AT 453 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  NUMEROUS THUNDERSTORMS ALONG A NORTH OF A LINE EXTENDING FROM
  CHANDLER TO BINGHAM LAKE...MOVING EAST AT 25 MPH.

RAINFALL AMOUNTS OF 1 TO 3 INCHES HAVE OCCURED IN THIS AREA...AND
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE LIKELY EARLY THIS 
MORNING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

LAT...LON 4389 9603 4386 9490 4408 9488 4408 9603

$$

CJ
2 follow-up statements
000 
WGUS73 KFSD 111039
FFSFSD
MNC033-101-111115-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
537 AM CDT SUN JUL 11 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 615 AM CDT FOR COTTONWOOD
AND MURRAY COUNTIES...

AT 534 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS PRODUCING HEAVY RAINS...ALONG AND NORTH OF A 
LINE...FROM CHANDLER TO MOUNTAIN LAKE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

LAT...LON 4389 9603 4387 9491 4409 9488 4410 9601

$$

CJ
000 
WGUS73 KFSD 111119
FFSFSD
MNC033-101-111130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
618 AM CDT SUN JUL 11 2004

...FLASH FLOOD WARNING EXPIRED FOR...

...MURRAY COUNTY IN SOUTHWEST MINNESOTA...
...COTTONWOOD COUNTY IN SOUTHWEST MINNESOTA...

THE THREAT OF HEAVY RAINS HAVE ENDED. THEREFORE THE FLASH FLOOD 
WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4414 9515 4392 9505 4391 9598 4413 9599

$$

CJ

Nearby

Flash Flood Warnings in Minnesota, 2004Every flash flood warning in 2004

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.