Alert archive / Minnesota / Flash Flood Warnings in 2003

Flash Flood Warning 7, NWS Grand Forks, ND

June 24, 2003Grant County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Jun 24, 2003, 2:53 AM CDT for Grant County, Minnesota. 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 as issued.

The facts

Issued: Jun 24, 2003, 2:53 AM CDT (07:53 UTC)
Expired: Jun 24, 2003, 9:00 AM CDT
In force: 6 hr
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Grant County, MN

The radar

The Aberdeen radar (KABR), 183 km from the middle of the area, began a volume at 07:52 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 00:00Z, 7.9 hours before the alert went out and 209 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: 1534 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 996 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 407 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFGF 240753
FFWFGF
MNC051-241400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
253 AM CDT TUE JUN 24 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  GRANT COUNTY IN WEST CENTRAL MINNESOTA.

* UNTIL 900 AM CDT.

* AT 244 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SLOW   MOVING THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED ACROSS THE 
AREA WITH DOPPLER RADAR INDICATED 2 TO 3 INCHES OF RAIN THE PAST 40 
MINUTES WEST OF WENDELL AND ELBOW LAKE. THIS IN ADDITION TO RAINFALL 
OVER THE PAST 48 HOURS WILL LEAD TO FLASH FLOODING CONDITIONS.

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 4600 9641 4577 9637 4579 9578 4609 9580

&

$$

DONAVON

2 follow-up statements

000 
WGUS73 KFGF 241122
FFSFGF
MNC051-241400-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
556 AM CDT TUE JUN 24 2003

...CORRECTED EXPIRATION TIME...

...A FLASH FLOOD WARNING CONTINUES FOR GRANT COUNTY UNTIL 630 AM
CDT...

AT 550 AM CDT... THUNDERSTORMS WITH HEAVY RAIN CONTINUE TO MOVE 
THROUGH THE GRANT COUNTY. AN ADDITIONAL ONE INCH OF RAIN IS POSSIBLE 
OVER THE NEXT COUPLE OF HOURS. THIS COMBINED WITH RAINFALL THAT 
PREVIOUSLY FELL...WILL KEEP THE THREAT OF FLASH FLOODING ACROSS THE 
AREA. 

THE WESTERN PART OF THE COUNTY HAS BEEN MOST AFFECTED BY RAINS 
OVERNIGHT AND INCLUDES AREAS ALONG AND WEST OF A WENDELL TO HERMAN 
LINE.

IF FLASH FLOODING IS OBSERVED...MOVE QUICKLY TO ESCAPE FLOOD WATERS.
DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

$$
DONAVON

000 
WGUS73 KFGF 241408
FFSFGF
MNC051-241430-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
900 AM CDT TUE JUN 24 2003

...THE FLASH FLOOD WARNING FOR GRANT COUNTY EXPIRED AT 900 AM CDT...

AT 856 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
RAIN SHOWERS OVER ELBOW LAKE...OR ABOUT 21 MILES SOUTH OF FERGUS 
FALLS...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH.

THE HEAVY RAINFALL OVER THE WENDELL AND HERMAN AREAS HAS DIMINISHED. 
SO THE WARNING WAS ALLOWED TO EXPIRE AT 900 AM CDT.

OCCASIONAL LIGHT RAIN WILL MOVE OUT OF THE ELBOW LAKE...TO 
BARRETT...TO ASHBY AREA BY 10 AM CDT. NO ADDITIONAL FLOODING IS 
EXPECTED. 

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 24, 2:18 AM CDT	Severe Thunderstorm Warning	FGF	Grant	42 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.