Alert archive / North Dakota / Flash Flood Warnings in 1998

Flash Flood Warning 3, NWS Bismarck, ND

July 5, 1998Mountrail County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jul 5, 1998, 1:30 AM CDT for Mountrail 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
Jul 5, 1998, 1:30 AM CDT (06:30 UTC)
Expired
Jul 5, 1998, 4:00 AM CDT
In force
3 hr
Issued by
NWS Bismarck, ND
Area
Whole counties

County Mountrail County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.5 hours before the alert went out and 202 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 1998-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1998-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.19395878Sfc1 km3 km6 km9 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
502 J/kg
Mixed-layer CIN
-180 J/kg
Mixed-layer LCL
1328 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 050632
FFWBIS
NDC061-050900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
130 AM CDT SUN JUL 5 1998

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MOUNTRAIL COUNTY IN NORTHWESTERN NORTH DAKOTA

* UNTIL 400 AM CDT

* AT 125 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH TORRENTIAL RAIN OVER MOUNTRAIL COUNTY...
  MOVING EAST AT 20 MPH.

* AT 125 AM CDT WATER WAS RUNNING CURB HIGH IN STANLEY. DOPPLER
  RADAR ESTIMATES AN INCH OF RAIN SINCE MIDNIGHT. THUNDERSTORMS
  WILL CONTINUE TO MOVE THROUGH MOUNTRAIL COUNTY WITH ANOTHER ONE
  TO TWO INCHES OF RAIN EXPECTED BEFORE 3 AM.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

IF WATER STARTS RISING NEAR YOU GET TO HIGHER GROUND!

JP MARTIN

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 5, 12:35 AM CDT, 55 minutes before
NDZ001-002-009-010-017>019-031>033-040-041-043-044-050900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1230 AM CDT (1130 PM MDT) SUN JUL 5 1998

...SEVERE THUNDERSTORM WATCH CONTINUES FOR THE WESTERN THIRD OF
NORTH DAKOTA UNTIL 4 AM CDT...3 AM MOUNTAIN...

THE WATCH INCLUDES BUT IS NOT LIMITED TO THESE CITIES AND TOWNS...
BOWBELLS...WILLISTON...STANLEY...WATFORD CITY...KILLDEER...DICKINSON
...BEACH...AND HETTINGER.

AT 1225 AM CDT (1125 PM MOUNTAIN) THUNDERSTORMS WERE OCCURING FROM
NEAR BOWBELLS...THROUGH WILLISTON...WATFORD CITY AND GRASSY BUTTE...
TO NEAR BEACH. MOVEMENT WAS EAST AT 25 MPH.

ANY OF THESE STORMS COULD QUICKLY GO SEVERE. IF YOU ARE IN THE WATCH
AREA BE PREPARED FOR RAPID CHANGES IN WEATHER.

BY DEFINITION A SEVERE THUNDERSTORM IS ONE THAT PRODUCES LARGE HAIL
(3/4 INCH DIAMETER OR LARGER) AND/OR WIND GUSTS OF 58 MPH OR HIGHER.

JP MARTIN
Local storm report, Jul 5, 12:47 AM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  WILLISTON ND
1247 AM CDT SUN JUL 5 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1209 AM    WILLISTON                 ND   62 MPH WIND GUST
07/05/98   WILLIAMS

PROTON
Local storm report, Jul 5, 12:47 AM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  WILLISTON ND
1247 AM CDT SUN JUL 5 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1209 AM    WILLISTON                 ND   62 MPH WIND GUST
07/05/98   WILLIAMS

PROTON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 10:50 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams60 min
Jul 4, 11:56 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams59 min
Jul 5, 1:15 AM CDTFlash Flood WarningBISWilliams3 hr
Jul 5, 6:55 PM CDTTornado WarningBISBurke50 min

Nearby

Flash Flood Warnings in North Dakota, 1998Every flash flood warning in 1998

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.