Alert archive / North Dakota / Flash Flood Warnings in 2003

Flash Flood Warning 1, NWS Grand Forks, ND

June 6, 2003Cass County, North Dakota; Clay County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Jun 6, 2003, 5:14 PM CDT for Cass County, North Dakota; Clay County, Minnesota. It was in force for 4 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 6, 2003, 5:14 PM CDT (22:14 UTC)
Expired: Jun 6, 2003, 9:15 PM CDT
In force: 4 hr
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

Counties Clay County, MN, Cass County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 85 km from the middle of the area, began a volume at 22:16 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

Aberdeen, SD (KABR), launched 12:00Z, 10.2 hours before the alert went out and 248 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: 24 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1038 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 20 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 062217
FFWFGF
MNC027-NDC017-070215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
514 PM CDT FRI JUN 6 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  WESTERN CLAY COUNTY IN NORTHWEST MINNESOTA AND
  EASTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA.

* UNTIL 915 PM CDT.

* AT 511 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW 
  MOVING THUNDERSTORMS WITH HEAVY RAIN IN THE FARGO AND MOORHEAD 
  AREA MOVING SLOWLY TO THE SOUTHWEST.

* OXBOW...SABIN...PRAIRIE ROSE AND FRONTIER WILL BE AFFECTED BY THE 
  HEAVY RAIN. RAINFALL AMOUNTS UP TO 2 TO 4 INCHES ARE POSSIBLE IN 
  THE WARNING AREA BY 600 PM.

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 4699 9699 4664 9687 4663 9661 4697 9668

&

$$

TG

2 follow-up statements

000 
WGUS73 KFGF 062342
FFSFGF
MNC027-NDC017-070215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
642 PM CDT FRI JUN 6 2003

...A FLASH FLOOD WARNING CONTINUES FOR SOUTHWESTERN CLAY AND
SOUTHEASTERN CASS COUNTIES UNTIL 915 PM CDT...

AT 630 PM CDT...THUNDERSTORMS WITH HEAVY RAIN CONTINUE TO MOVE 
SLOWLY SOUTHWEST ACROSS EASTERN CASS COUNTY AND WESTERN CLAY COUNTY. 

FARGO...HARWOOD...DILWORTH...HORACE AND MOORHEAD WILL BE AFFECTED BY 
THE HEAVY RAIN. RAINFALL AMOUNTS OF 2 TO 4 INCHES HAVE BEEN REPORTED 
IN THE FARGO AND MOORHEAD AREA...WHICH HAS PRODUCED FLOODING. ANY 
ADDITIONAL HEAVY RAIN WILL FURTHER AGGRAVATE THE FLOODING.

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.


$$
TG

000 
WGUS73 KFGF 070214
FFSFGF
MNC027-NDC017-070230-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
909 PM CDT FRI JUN 6 2003

...A FLASH FLOOD WARNING FOR WESTERN CLAY AND EASTERN CASS COUNTIES 
WILL EXPIRE AT 915 PM CDT...

AT 908 PM CDT...RADAR SHOWED NO PRECIPITATION WAS OVER THE FARGO AND 
MOORHEAD METRO AREA AND NO ADDITIONAL HEAVY RAIN IS LIKELY THE REST 
OF THE NIGHT.  THEREFORE...THE FLASH FLOOD WARNING HAS BEEN ALLOWED 
TO EXPIRE.  

WATER MAY REMAIN ON SOME ROADS WITH POOR DRAINAGE OVER THE SOUTHERN 
PARTS OF BOTH CITIES TONIGHT.  MOTORISTS SHOULD USE EXTRA CAUTION 
AND AVOID WATER THAT COVERS THE ROAD.

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.

$$

DTR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 12:05 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier	40 min
Jun 6, 1:12 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	48 min
Jun 6, 2:19 PM CDT	Tornado Warning	FGF	Cavalier	41 min
Jun 6, 4:47 PM CDT	Severe Thunderstorm Warning	FGF	Cass	43 min
Jun 5, 7:28 PM CDT	Severe Thunderstorm Warning	FGF	Roseau	62 min
Jun 6, 1:07 PM CDT	Severe Thunderstorm Warning	FGF	Roseau	38 min
Jun 6, 3:58 PM CDT	Severe Thunderstorm Warning	FGF	Clay	47 min
Jun 6, 4:11 PM CDT	Severe Thunderstorm Warning	FGF	Polk	49 min
Jun 6, 4:35 PM CDT	Severe Thunderstorm Warning	FGF	Marshall	40 min
Jun 6, 4:51 PM CDT	Tornado Warning	FGF	Becker	39 min
Jun 6, 5:07 PM CDT	Severe Thunderstorm Warning	FGF	Red Lake	38 min
Jun 6, 5:12 PM CDT	Severe Thunderstorm Warning	FGF	Norman	48 min

Nearby

Flash Flood Warnings in North Dakota, 2003 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.