Alert archive / North Dakota / Tornado Warnings in 1989

Tornado Warning 5, NWS Bismarck, ND

July 11, 1989McHenry County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 11, 1989, 9:07 PM CDT for McHenry County, North Dakota. It was in force for 23 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1989, 9:07 PM CDT (02:07 UTC)
Expired
Jul 11, 1989, 9:30 PM CDT
In force
23 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County McHenry 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, 2.1 hours before the alert went out and 163 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 1989-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 512 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 1989-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
512 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1864 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 120207
TORBIS
NDC049-120230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE BISMARCK ND
907 PM CDT TUE JUL 11 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE NORTH CENTRAL PART OF NORTH DAKOTA
      SOUTHEAST MCHENRY

AT 905 PM CDT POLICE IN DRAKE SPOTTED A TORNADO JUST WEST OF
DRAKE MOVING SOUTHEAST AT 30 MILES AN HOUR. PERSONS IN THE TOWN OF
DRAKE SHOULD TAKE COVER IMMEDIATELY.

IF YOU ARE IN THE PATH OF THIS TORNADO...GO TO A BASEMENT SHELTER
IF AVAILABLE...OTHERWISE TO A CENTRAL INTERIOR ROOM ON THE LOWEST
FLOOR...STAY AWAY FROM WINDOWS.  ABANDON CARS AND MOBILE HOMES.

 MCMULLEN

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, Jul 11, 6:51 PM CDT, 2 hours 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
645 PM CDT TUE JUL 11 1989

...A THUNDERSTORM IS DEVELOPING RAPIDLY NORTHWEST OF WILLISTON NORTH
   DAKOTA...

  AT 640 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN WILLISTON
INDICATED A RAPIDLY DEVELOPING THUNDERSTORM 14 MILES NORTHWEST OF
WILLISTON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR
AND WILL BE OVER THE CITY OF WILLISTON SHORTLY AFTER 7 PM CDT.

  THIS THUNDERSTORM WILL PRODUCE BRIEF HEAVY ALONG WITH POSSIBLE
STRONG GUSTY WINDS...HAIL AND DEADLY LIGHTNING.

 IF YOU ARE IN THE PATH OF THIS THUNDERSTORM BE PREPARED TO GO TO A
SAFE SHELTER.

KENNEDY
Special weather statement, Jul 11, 6:53 PM CDT, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT ...CORRECTED...
NATIONAL WEATHER SERVICE WILLISTON ND
645 PM CDT TUE JUL 11 1989

...A THUNDERSTORM IS DEVELOPING RAPIDLY NORTHWEST OF WILLISTON NORTH
   DAKOTA...

  AT 640 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN WILLISTON
INDICATED A RAPIDLY DEVELOPING THUNDERSTORM 14 MILES NORTHWEST OF
WILLISTON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR
AND WILL BE OVER THE CITY OF WILLISTON SHORTLY AFTER 7 PM CDT.

  THIS THUNDERSTORM WILL PRODUCE BRIEF HEAVY RAIN ALONG WITH POSSIBLE
STRONG GUSTY WINDS...HAIL AND DEADLY LIGHTNING.

 IF YOU ARE IN THE PATH OF THIS THUNDERSTORM BE PREPARED TO GO TO A
SAFE SHELTER.

KENNEDY
Special weather statement, Jul 11, 7:18 PM CDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
715 PM CDT TUE JUL 11 1989

...THUNDERSTORM MOVING INTO THE CITY OF MINOT...

AT 715 PM CDT A THUNDERSTORM WAS MOVING INTO THE CITY OF MINOT2.
THE THUNDERSTORM HAS INCREASED IN INTENSITY DURING THE PAST 15 MINUTES.
VERY HEAVY RAIN...SMALL HAIL...WIND GUSTING TO 50 MPH AND INTENSE
DANGEROUS LIGHTNING CAN BE EXPECTED IN THE CITY OF MINOT UNTIL 8 PM
CDT.

VAN ESS
Special weather statement, Jul 11, 7:39 PM CDT, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
740 PM CDT TUE JUL 11 1989

...SEVERE THUNDERSTORM WARNING FOR WARD COUNTY INCLUDING THE CITY
OF MINOT UNTIL 8 PM CDT...

AT 740 PM CDT A SEVERE THUNDERSTORM WAS MOVING THROUGH THE CITY OF
MINOT. THIS STORM WAS MOVING SOUTHEAST AT 25 MPH AND WILL BE OUT OF
MINOT BY 8 PM CDT.

THIS STORM WILL PRODUCE LARGE HAIL...HEAVY RAIN...FREQUENT CLOUD TO
GROUND LIGHTNING AND WINDS GUSTING TO OVEXR 60 MPH.

AT 721 PM CDT WINDS WERE GUSTING TO 58 MPH AT THE MINOT AIRPORT.

AT 726 PM CDT WINDS DOWNED TREES IN BURLINGTON OR ABOUT 8 MILES
NORTHWEST OF MINOT.

MCMULLEN
Special weather statement, Jul 11, 7:50 PM CDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
750 PM CDT TUE JUL 11 1989

...SEVERE THUNDERSTORMS CONTINUE OVER NORTHWEST NORTH DAKOTA...

  SEVERE THUNDERSTORM WARNINGS REMAIN IN EFFECT FOR SOUTHWEST
MOUNTRAIL COUNTY UNTIL 815 PM CDT AND FOR SOUTHERN WILLIAMS AND
NORTHERN MCKENZIE COUNTIES UNTIL 830 PM CDT.
  AT 745 PM CDT SEVERE THUNDERSTORMS WERE 20 MILES SOUTHEAST OF WILLISTON
AND 5 MILES NORTHWEST OF NEW TOWN MOVING SOUTHEAST AT 25 MILES AN HOUR.
  HAIL UP TO 1 INCH AND WIND GUSTS TO NEAR 65 MILES AN HOUR WERE
PRODUCED BY THE SEVERE THUNDERSTORM THAT PASS THROUGH THE WILLISTON
AREA.
 THESE ARE DANGEROUS THUNDERSTORMS. IF THEY APPROACH YOUR AREA GO TO
A SAFE SHELTERi.

KENNEDY
Special weather statement, Jul 11, 8:11 PM CDT, 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
810 PM CDT TUE JUL 11 1989

...SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN AND CENTRAL NORTH
DAKOTA UNTIL 1 AM CDT...

AT 810 PM CDT A THUNDERSTORM WAS LOCATED IN WESTERN MCHENRY COUNTY
12 MILES SOUTHEAST OF MINOT. THE THUNDERSTORM WAS LOCATED BETWEEN
GRANVILLE...KARLSRUHE AND VELVA AND HEADING FOR THE TOWN OF KARLSRUHE.

THIS THUNDERSTORM UPROOTED TREES...DISRUPTED POWER...PRODUCED LARGE
HAIL AND WIND GUSTING TO NEAR 60 MPH IN MINOT. DURING THE PAST 15
MINUTES THE STORM HAS DECREASED RAPIDLY IN INTENSITY.

THE THUNDERSTORM WILL MOVE INTO THE TOWN OF KARLSRUHE BETWEEN 830 AND
9 PM CDT. IT WILL LIKELY PRODUCE VERY HEAVY RAIN...HAIL AND GUSTY
WINDS.
VAN ESS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 7:09 PM CDTSevere Thunderstorm WarningBISMcKenzie, Mountrail66 min
Jul 11, 7:21 PM CDTSevere Thunderstorm WarningBISWard39 min
Jul 11, 7:24 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams66 min
Jul 11, 8:28 PM CDTSevere Thunderstorm WarningBISMountrail32 min
Jul 11, 8:40 PM CDTSevere Thunderstorm WarningBISMcHenry35 min
Jul 11, 8:42 PM CDTSevere Thunderstorm WarningBISDunn, McKenzie48 min
Jul 11, 8:52 PM CDTSevere Thunderstorm WarningBISMcLean68 min
Jul 11, 9:34 PM CDTSevere Thunderstorm WarningBISDunn56 min
Jul 11, 10:55 PM CDTSevere Thunderstorm WarningBISMercer, Morton35 min
Jul 11, 11:10 PM CDTSevere Thunderstorm WarningBISGrant65 min

Nearby

Tornado Warnings in North Dakota, 1989Every tornado warning in 1989Tornadoes in 1989

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.