Alert archive / North Dakota / Tornado Warnings in 1986

Tornado Warning 3, NWS Bismarck, ND

June 27, 1986Dunn County, McKenzie County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 27, 1986, 6:03 PM MDT for Dunn County, McKenzie County, North Dakota. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1986, 6:03 PM MDT (00:03 UTC)
Expired
Jun 27, 1986, 7:00 PM MDT
In force
57 min
Issued by
NWS Bismarck, ND
Area
Whole counties

Counties Dunn County, ND, McKenzie 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, 0.1 hours before the alert went out and 195 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 1986-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 1986-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2526 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
173 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 KISN 280003
TORISN
NDC025-053-280100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE WILLISTON ND
603 PM MDT FRI JUN 27 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

WEST CENTRAL NORTH DAKOTA...WESTERN DUNN AND EASTERN MCKENZIE

AT 553 PM MDT RADAR INDICATED A TORNADO 16 MILES SOUTHEAST OF
ARNEGARD MOVING TOWARD THE SOUTHEAST AT 30 MPH.

IF A TORNADO APPROACHES ...SEEK SAFE SHELTER...TAKE COVER
IMMEDIATLY.  A BASEMENT IS YOUR BEST PROTECTION...OTHERWISE
AN INTERIOR HALLWAY OR A ROOM ON THE LOWEST LEVEL OF THE BUILDING.
STAY AWAY FROM WINDOWS AND DOORS...IF CAUGHT OUTSIDE GET INTO A
DITCH...GULLY...RAVINE...OR EVEN A LOW LYING SPOT ON THE GROUND.
PROTECT YOUR HEAD.  ABANDON CARS AND MOBILE HOMES.

THIS IS A DANGEROUS STORM.  TAKE COVER IMMEDIATELY !

THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING AND STRONG GUSTY
WINDS.

NEWKIRK 0001 Z

What forecasters said that day

The local office's own words before this tornado 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, Jun 27, 4:05 PM MDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
510 PM CDT FRI JUN 27 1986

...DEVELOPING THUNDERSTORMS IN WESTERN NORTH DAKOTA...

AT 500 4PM MDT STRONG THUNDERSTORMS WITH HEAVY RAIN AND SMALL HAIL
FORMED IN EASTERN MCKENZIE AND WESTERN DUNN COUNTIES OF NORTH DAKOTA.
THE STRONGER THUNDERSTORMS WERE SOUTHEAST OF KEENE NORTH DAKOTA AND
NORTHWEST OF KILLDEER NORTH DAKOTA. MOVEMENT OF THUNDERSTORMS WAS
EAST AT 45 MPH.

PEOPLE IN OR NEAR THE THUNDERSTORM AREA SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.
SEAL
Special weather statement, Jun 27, 4:07 PM MDT, 1 hour 56 minutes before
SPECIAL WEATHER STATEMENT..CORRECTION
NATIONAL WEATHER SERVICE BISMARCK ND
510 PM CDT FRI JUN 27 1986

...DEVELOPING THUNDERSTORMS IN WESTERN NORTH DAKOTA...

AT 500 PM CDT 4PM MDT STRONG THUNDERSTORMS WITH HEAVY RAIN AND SMALL
HAIL FORMED IN EASTERN MCKENZIE AND WESTERN DUNN COUNTIES OF NORTH
DAKOTA. THE STRONGER THUNDERSTORMS WERE SOUTHEAST OF KEENE NORTH
DAKOTA AND NORTHWEST OF KILLDEER NORTH DAKOTA. MOVEMENT OF THUNDERSTORMS
WAS EAST AT 45 MPH.

PEOPLE IN OR NEAR THE THUNDERSTORM AREA SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.
SEAL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 6:26 PM MDTSevere Thunderstorm WarningBISDunn19 min
Jun 27, 6:34 PM MDTSevere Thunderstorm WarningBISMorton60 min
Jun 27, 7:46 PM MDTSevere Thunderstorm WarningBISGrant, Morton29 min
Jun 27, 8:15 PM MDTSevere Thunderstorm WarningBISMorton, Sioux45 min

Nearby

Tornado Warnings in North Dakota, 1986Every tornado warning in 1986Tornadoes in 1986

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.