Alert archive / North Dakota / Flash Flood Warnings in 1997

Flash Flood Warning 27, NWS Grand Forks, ND

September 1, 1997Barnes County, Griggs County, North Dakota

NWS Grand Forks, ND issued this flash flood warning at Sep 1, 1997, 1:22 AM CDT for Barnes County, Griggs County, North Dakota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 1, 1997, 1:22 AM CDT (06:22 UTC)
Expired
Sep 1, 1997, 4:30 AM CDT
In force
3 hr
Issued by
NWS Grand Forks, ND
Area
Whole counties

Counties Barnes County, ND, Griggs County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.4 hours before the alert went out and 199 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, Bismarck Municip, ND at 00:00Z on 1997-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1215 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1997-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 km3 km6 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
1215 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1935 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 010624
FFWFAR
NDC003-039-010930-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
122 AM CDT MON SEP 1 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  430 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST NORTH DAKOTA
 
   ...NORTHERN BARNES COUNTY...SOUTHERN GRIGGS COUNTY
 
AT 120 AM CDT RADAR INDICATED THAT AN AREA OF INTENSE THUNDERSTORMS...
WITH TORRENTIAL RAIN...WILL BE MOVING OVER NORTHERN BARNES AND SOUTHERN
GRIGGS COUNTIES OVER THE NEXT FEW HOURS.  THE MAIN AREA OF CONCERN IS
BOUNDED BY STATE HIGHWAY 200 ON THE NORTH AND I94 ON THE SOUTH.
 
DOPPLER RADAR RAINFALL ESTIMATES INDICATED UP TO 3 INCHES OF RAIN HAS
ALREADY FALLEN OVER AN AREA FROM WIMBLEDON TO HANNAFORD FROM 10 PM
SUNDAY EVENING TO 1 AM MONDAY MORNING.
 
AS THESE STORMS MOVE OVER THE AREA OVER THE NEXT FEW HOURS... AN
ADDITIONAL 1 TO 3 INCHES OF RAIN IS POSSIBLE. AS A RESULT FLASH
FLOODING IS LIKELY...ESPECIALLY FROM WIMBLEDON TO DAZEY TO HANNAFORD.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS OBSERVED...
MOVE QUICKLY TO HIGHER GROUND.
 
KENNEDY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 8:37 PM CDTSevere Thunderstorm WarningFGFBarnes38 min
Aug 31, 9:17 PM CDTSevere Thunderstorm WarningFGFEddy28 min
Aug 31, 10:00 PM CDTTornado WarningFGFBarnes30 min
Aug 31, 10:29 PM CDTSevere Thunderstorm WarningFGFBarnes31 min
Aug 31, 11:18 PM CDTSevere Thunderstorm WarningFGFCass42 min
Sep 1, 1:27 AM CDTSevere Thunderstorm WarningFGFBarnes48 min
Sep 1, 2:13 AM CDTSevere Thunderstorm WarningFGFCass47 min
Sep 1, 2:15 AM CDTSevere Thunderstorm WarningFGFBarnes30 min
Sep 1, 2:30 AM CDTFlash Flood WarningFGFCass4 hr

Nearby

Flash Flood Warnings in North Dakota, 1997Every flash flood warning in 1997

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.