Alert archive / North Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 59, NWS Bismarck, ND

July 24, 1990Bowman County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 24, 1990, 7:12 PM MDT for Bowman County, North Dakota. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Jul 24, 1990, 7:12 PM MDT (01:12 UTC)
Expired
Jul 24, 1990, 8:15 PM MDT
In force
63 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Bowman County, ND

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.2 hours before the alert went out and 228 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 1990-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
152 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 
TTAA00 KBIS 250115
SVRBIS
NDC011-250215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
712 PM MDT TUE JUL 24 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 815 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY

   IN THE SOUTHWEST PART OF NORTH DAKOTA
      WESTERN BOWMAN

AT 710 PM MDT WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
28 MILES WEST SOUTHWEST OF BOWMAN. THIS THUNDERSTORM WAS STATIONARY
AND SLOWLY DEVELOPING SOUTHWARD.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAIN MAY FLOOD ROADWAYS QUICKLY
SO AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS.

THIS WARNING DOES NOT INCLUDE THE CITY OF BOWMAN.

MCMULLEN

What forecasters said that day

The local office's own words before this severe thunderstorm 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 24, 6:20 PM MDT, 52 minutes before
NDZ003-250115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
720 PM CDT TUE JUL 24 1190

...THUNDERSTORMS DEVELOPING OVER SOUTHWEST NORTH DAKOTA...

AT 710 PM CDT NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED
THUNDERSTORMS DEVELOPING 55 MILES SOUTHWEST OF DICKINSON...OR 15 SOUTH
OF THE TOWN OF GOLVA IN SOUTHERN GOLDEN VALLEY COUNTY.  THESE STORMS
ARE MOVING VERY SLOWLY TO THE NORTHEAST AT 10 MPH.

OTHER THUNDERSTORMS WElRE LOCATED 95 MILES SOUTHWEST OF WILLISTON...
OR 5 MILES SOUTHWEST OF THE TOWN OF MARCH IN DAWSON COUNTY MONTANA.

BRIEF HEAVY RAINS AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS.

LEWIS
Special weather statement, Jul 24, 6:42 PM MDT, 30 minutes before
NDZ002>004-250130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
640 PM MDT TUE JUL 24 1990

...A VERY STRONG THUNDERSTORM WAS DEVELOPING IN EXTREME SOUTHWEST NORTH
DAKOTA...

AT 640 PM MDT A VERY STRONG THUNDERSTORM WAS LOCATED IN EXTREME WESTERN
BOWMAN COUNTY 30 MILES WEST OF BOWMAN OR 10 MILES SOUTHWEST OF
MARMARTH.

THE THUNDERSTORM WAS MOVING SLOWLY NORTH AND WILL PRODUCE EXTREMELY
HEAVY RAIN AND HAIL.

THE THUNDERSTORM WILL MOVE INTO SOUTHWEST SLOPE COUNTY NEAR MARMARTH
BY 715 PM MDT.
VAN ESS

Nearby

Severe Thunderstorm Warnings in North Dakota, 1990Every severe thunderstorm warning in 1990

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.