Alert archive / North Dakota / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Bismarck, ND

July 8, 1989Bottineau County, McHenry County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 8, 1989, 7:07 PM CDT for Bottineau County, McHenry County, North Dakota. It was in force for 53 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 8, 1989, 7:07 PM CDT (00:07 UTC)
Expired: Jul 8, 1989, 8:00 PM CDT
In force: 53 min
Issued by: NWS Bismarck, ND
Area: Whole counties

Counties Bottineau County, ND, McHenry County, ND

The radar

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

What was reported inside it

Time	Report	Where	Remark
Jul 8, 7:25 PM CDT	Hail 2.5	Bottineau, ND
Jul 8, 7:34 PM CDT	Hail 2	Mchenry, ND

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.1 hours before the alert went out and 194 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 767 J/kg
Mixed-layer CIN: -194 J/kg
Mixed-layer LCL: 3252 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 312 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 090007
SVRBIS
NDC009-049-090100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE BISMARCK ND
707 PM CDT SAT JUL 8 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF NORTH DAKOTA
      BOTTINEAU...NORTHERN MCHENRY

THIS WARNING INCLUDES THE TOWN OF BOTTINEAU.
.
.
AT 705 PM CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM
40 MILES NORTH OF MINOT MOVING SOUTHEAST AT 35 MPH.

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.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO gADVANCE WARNING SO BE ON THE LOOKOUT.

 LEBLANG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 7:40 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	50 min
Jul 8, 8:19 PM CDT	Severe Thunderstorm Warning	BIS	Benson	41 min
Jul 8, 8:59 PM CDT	Severe Thunderstorm Warning	BIS	Eddy, Wells	46 min
Jul 8, 9:14 PM CDT	Severe Thunderstorm Warning	BIS	Ramsey	31 min
Jul 8, 9:29 PM CDT	Severe Thunderstorm Warning	BIS	Foster	61 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1989 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.