Alert archive / Minnesota / Flash Flood Warnings in 2003

Flash Flood Warning 5, NWS Grand Forks, ND

June 23, 2003Otter Tail County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Jun 23, 2003, 12:46 PM CDT for Otter Tail County, Minnesota. It was in force for 8 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 23, 2003, 12:46 PM CDT (17:46 UTC)
Expired: Jun 23, 2003, 8:45 PM CDT
In force: 8 hr
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Otter Tail County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 167 km from the middle of the area, began a volume at 17:47 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, 5.8 hours before the alert went out and 246 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 627 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 795 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 110 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 KFGF 231749
FFWFGF
MNC111-240145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1246 PM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA.

* UNTIL 845 PM CDT.

* AT 1242 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED      
  THUNDERSTORMS WITH HEAVY RAIN CONTINUING TO MOVE INTO OTTER TAIL   
  COUNTY.

* AREAS GENERALLY SOUTHEAST OF A FERGUS FALLS TO PERHAM LINE IN      
  SOUTHERN AND EASTERN OTTER TAIL COUNTY CAN EXPECT TO ONE TO THREE  
  INCHES OF RAINFALL IN THE NEXT ONE TO TWO HOURS.  THIS WILL AFFECT 
  THE CITIES OF DALTON...FERGUS FALLS...OTTERTAIL AND BATTLE LAKE.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR
VEHICLE INTO WATER OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WILL
FLOAT MOST CARS DOWNSTREAM.

LAT...LON 4659 9627 4611 9626 4612 9517 4671 9517


$$

84

2 follow-up statements

000 
WGUS73 KFGF 231959
FFSFGF
MNC111-240145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
259 PM CDT MON JUN 23 2003

...A FLASH FLOOD WARNING CONTINUES FOR OTTER TAIL COUNTY UNTIL 845 PM
CDT...

STRONG THUNDERSTORMS MOVED OVER SOUTHERN PORTIONS OF OTTER TAIL 
COUNTY AND PRODUCED RAINFALL AMOUNTS OF ONE TO THREE INCHES ALONG 
THE SOUTHERN OTTER TAIL COUNTY LINE.  NATIONAL WEATHER SERVICE 
DOPPLER RADAR ESTIMATED ONE TO THREE INCHES OF RAIN FELL ALONG A 
LINE FROM DALTON TO URBANK TO PARKERS PRAIRIE.  AN OBSERVER IN 
DALTON REPORTED 1.57 INCHES OF RAIN WITHIN ONE HOUR AS THE STORMS 
PASSED THROUGH.  PUBLIC REPORTS OF STANDING WATER HAVE BEEN RECEIVED 
IN SOUTHERN OTTER TAIL COUNTY. 

ADDITIONAL THUNDERSTORMS MAY REDEVELOP OVER WEST CENTRAL MINNESOTA 
BY LATE THIS AFTERNOON...CREATING ADDITIONAL FLOODING PROBLEMS.

PERSONS IN THE WARNED AREA NEED TO TAKE STEPS TO PROTECT PROPERTY 
AND MOVE TO A SAFE LOCATION.  REPORT FLOODING TO YOUR LOCAL LAW 
ENFORCEMENT OFFICIALS.

$$

DPORTER

000 
WGUS73 KFGF 232337
FFSFGF
MNC051-111-232345-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
635 PM CDT MON JUN 23 2003

...THE FLASH FLOOD WARNING FOR GRANT AND OTTER TAIL COUNTIES HAS 
BEEN CANCELLED...

AT 635 PM CDT...THE HEAVY RAIN HAS MOVED OUT OF NORTHERN GRANT AND 
OTTER TAIL COUNTIES SO THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR TONIGHT...UNTIL 4 AM CDT. 
ADDITIONAL THUNDERSTORM ACTIVITY IS STILL POSSIBLE LATER THIS 
EVENING. 

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL TELEVISION...CABLE
TELEVISION OR RADIO FOR THE LATEST WEATHER INFORMATION. CHECK OUT OUR
WEB SITE AT WWW.CRH.NOAA.GOV/FGF/INDEX.HTML USING LOWER CASE.

$$
GJG

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 11:32 AM CDT	Flash Flood Warning	FGF	Grant	8 hr
Jun 23, 12:36 PM CDT	Severe Thunderstorm Warning	FGF	Grant	54 min
Jun 23, 1:55 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	35 min

Nearby

Flash Flood Warnings in Minnesota, 2003 Every 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.