Alert archive / North Dakota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 21, NWS Bismarck, ND

June 23, 1993Burleigh County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 23, 1993, 6:26 PM CDT for Burleigh County, North Dakota. It was in force for 64 min.

The area

The counties it named.

The facts

Issued: Jun 23, 1993, 6:26 PM CDT (23:26 UTC)
Expired: Jun 23, 1993, 7:30 PM CDT
In force: 64 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Burleigh County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.4 hours before the alert went out and 29 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1393 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: 126 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 
WUUS1 KBIS 232328 RRA
SVRBIS
NDC015-240030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
626 PM CDT WED JUN 23 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 730 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY

   IN THE CENTRAL PART OF NORTH DAKOTA
      CENTRAL AND EASTERN BURLEIGH

AT 620 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED IN WESTERN
BURLEIGH COUNTY OVER BISMARCK MOVING EAST AT 35 MILES AN HOUR.

AT 620 PM CDT MARBLE SIZE HAI...WIND GUST TO 60 MPH AND HEAVY RAIN
WERE REPORTED IN THE BISMARCK AREA.

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 ADVANCE WARNING SO BE ON THE LOOKOUT.

THESE THUNDERSTORMS MAY CAUSE FLOODING OF SMALL STREAMS
AND UNDERPASSES.

IF YOU ARE IN AN AREA THREATENED BY THE STORM...GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...AND HEAVY RAIN.

 RJR

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, Jun 23, 3:37 PM CDT, 2 hours 49 minutes before

NDZ001>014-232200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
245 PM MDT WED JUN 23 1993

...THUNDERSTORMS PERSIST IN THE SOUTHWEST...

AT 245 PM MDT RADAR INDICATED A CLUSTER OF THUNDERSTORMS IN SOUTHWEST
NORTH DAKOTA...MOSTLY IN WESTERN ADAMS COUNTY. THIS IS EAST OF BOWMAN
AND NORTHWEST OF HETTINGER. AN ADAMS COUNTY DEPUTY REPORTED BRIEF HEAVY
RAIN AND GUSTY WINDS WITH THIS STORM AS IT PASSED OVER BUCYRUS.
THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 35 MPH AND WILL BE
HEADING TOWARDS REGENT. EVERYONE IN THIS AREA SHOULD BE PREPARED TO
TAKE SHELTER AS THIS STORM APPROACHES AS IT MAY PRODUCE LARGE HAIL
AND DAMAGING WINDS.

KAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 7:26 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	64 min
Jun 22, 8:12 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	28 min
Jun 23, 3:58 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	37 min
Jun 23, 4:25 PM CDT	Severe Thunderstorm Warning	BIS	Grant	40 min
Jun 23, 4:58 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	47 min
Jun 23, 5:40 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	65 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1993 Every severe thunderstorm warning in 1993

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.