Alert archive / North Dakota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 21, NWS Bismarck, ND

June 14, 1986Burke County, Mountrail County, Williams County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 14, 1986, 8:32 PM CDT for Burke County, Mountrail County, Williams County, North Dakota. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1986, 8:32 PM CDT (01:32 UTC)
Expired
Jun 14, 1986, 9:30 PM CDT
In force
58 min
Issued by
NWS Bismarck, ND
Area
Whole counties

Counties Burke County, ND, Mountrail County, ND, Williams 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, 1.5 hours before the alert went out and 243 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 1986-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 350 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 1986-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.193958Sfc1 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
350 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
1495 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
272 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KISN 150132 RRA
SVRISN
NDC013-051-105-150230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLISTON ND
832 PM CDT SAT JUN 14 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTHWEST NORTH DAKOTA...EXTREME SOUTHWEST BURKE...EXTREME NORTHWEST 
 MOUNTRAIL AND WESTERN WILLIAMS

AT 810 PM CDT 1/2 INCH HAIL COVERED THE HIGHWAY 5 MILES NORTH
OF RAY NORTH DAKOTA IN WILLIAMS COUNTY.

REMEMBER A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 60 MPH...LARGE HAIL...DEADLY LIGHTING AND HEAVY RAINS THAT CAN
RAPIDLY FLOOD LOW LYING AREAS.

THESE STORMS CAN AND OCCASIONALY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING.  IF LIFE THREATENING WEATHER APPROACHES SEEK
SAFE SHELTER IMMEDIATLY...YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT
AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER
SERVICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 9:11 PM CDTSevere Thunderstorm WarningBISWilliams64 min
Jun 15, 2:11 PM CDTSevere Thunderstorm WarningBISFoster34 min
Jun 15, 2:53 PM CDTSevere Thunderstorm WarningBISStutsman32 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1986Every severe thunderstorm warning 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.