Alert archive / North Dakota / Flash Flood Warnings in 2007

Flash Flood Warning 1, NWS Grand Forks, ND

April 1, 2007Richland County, North Dakota; Wilkin County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Apr 1, 2007, 7:58 AM CDT for Richland County, North Dakota; Wilkin County, Minnesota. It was in force for 11 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 1, 2007, 7:58 AM CDT (12:58 UTC)
Expired: Apr 1, 2007, 7:00 PM CDT
In force: 11 hr
Issued by: NWS Grand Forks, ND
Area: Whole counties

Counties Wilkin County, MN, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 143 km from the middle of the area, began a volume at 12:57 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.

What was reported inside it

Time	Report	Where	Remark
Apr 1, 1:15 PM CDT	FLASH FLOOD	Kent, MN	HIGHWAY 75 NEAR KENT, WATER OVER ROAD AND BARRICADES UP.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 1.0 hours before the alert went out and 205 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 533 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -57 m²/s²
0-3 km storm-relative helicity: -97 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 011302
FFWFGF
MNC167-NDC077-020000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
758 AM CDT SUN APR 1 2007

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA
  THIS INCLUDES THE CITY OF WAHPETON...
  WILKIN COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 700 PM CDT SUNDAY

* RAINFALL AMOUNTS LAST NIGHT FROM 1.25 TO NEARLY 2 INCHES HAVE
FALLEN IN A NARROW BAND FROM NEAR MANTADOR EAST INTO THE ROTHSAY 
AREA. THIS HEAVY RAIN WILL QUICKLY RUNOFF...AND CAUSE RAPID RISES ON 
THE RABBIT...OTTERTAIL AND WILD RICE RIVERS. OVERLAND FLOODING WILL 
ALSO OCCUR...AND ROAD CLOSURES ARE ALSO POSSIBLE.

* SOME LOCATIONS IN THE WARNING INCLUDE WAHPETON...BRECKENRIDGE...
  WYNDMERE AND LIDGERWOOD.

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 4598 9719 4606 9630 4660 9633 4660 9724

$$
DK

1 follow-up statement

000 
WGUS73 KFGF 011859
FFSFGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
156 PM CDT SUN APR 1 2007

MNC167-NDC077-020000-
WILKIN MN-RICHLAND ND-
156 PM CDT SUN APR 1 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
RICHLAND AND WILKIN COUNTIES...

AT 115 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS IN WILKIN COUNTY 
REPORTED THE CLOSURE OF HIGHWAY 75 NEAR KENT FROM WATER OVER THE ROAD.
THREE COUNTY ROADS REMAIN CLOSED IN RICHLAND COUNTY DUE TO HIGH 
WATER.

TWO TO THREE INCHES OF RAIN HAS FALLEN IN THE HEADWATERS OF THE RED 
RIVER VALLEY OVER THE PAST 2 DAYS. THIS RAIN WILL RUNOFF INTO AREA 
RIVERS AND STREAMS...AND WATER LEVELS WILL RISE QUICKLY THROUGH THIS 
EVENING ON THE BOIS DE SIOUX...RABBIT...WILD RICE AND RED 
RIVERS...AS WELL AS ANTELOPE CREEK.

THIS RAPIDLY RISING WATER MAY CAUSE MORE ROAD CLOSURES...AS WELL AS 
OVERLAND FLOODING IN RICHLAND AND WILKIN COUNTY. THE OVERLAND FLOOD 
THREAT WILL PERSIST UNTIL RIVER LEVELS RECEDE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

LAT...LON 4598 9719 4606 9630 4660 9633 4660 9724

$$
DK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 1, 3:32 PM CDT	Winter Storm Watch	FGF	Barnes, Benson, Cass, Eddy, Grand Forks, Griggs and 8 more	24 hr

Nearby

Flash Flood Warnings in North Dakota, 2007 Flash Flood Warnings in Minnesota, 2007 Every flash flood warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.