Alert archive / North Dakota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 49, NWS Bismarck, ND

August 8, 1993Stutsman County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 8, 1993, 9:04 PM CDT for Stutsman County, North Dakota. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Aug 8, 1993, 9:04 PM CDT (02:04 UTC)
Expired
Aug 8, 1993, 9:30 PM CDT
In force
26 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Stutsman County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.1 hours before the alert went out and 134 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 1993-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1480 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 1993-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897Sfc1 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
1480 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1514 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 090202 RRA
SVRBIS
NDC093-090230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
904 PM CDT SUN AUG 8 1993
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL NORTH DAKOTA
 
   ...NORTHEASTERN STUTSMAN COUNTY
 
AT 9 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR COURTENAY...25
MILES NORTH NORTHEAST OF JAMESTOWN. THIS THUNDERSTORM WAS MOVING
NORTHEAST AT 20 MPH.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
KM

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, Aug 8, 6:08 PM CDT, 2 hours 56 minutes before
NDZ005-018-090000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
605 PM CDT SUN AUG 8 1993

...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR BOTTINEAU...MCHENRY
   AND SHERIDAN COUNTIES OF NORTH DAKOTA...
...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF CENTRAL AND EASTERN
NORTH DAKOTA UNTIL 11 PM CDT...

AT 6 PM CDT...RADAR INDICATED SCATTERED THUNDERSTORMS FROM 30 MILES
NORTHEAST OF DEVILS LAKE NORTH DAKOTA SOUTH TO 30 MILES SOUTH OF
JAMESTOWN.

THE STRONGEST THUNDERSTORM WAS LOCATED IN SOUTHEAST RAMSEY COUNTY
15 MILES EAST OF DEVILS LAKE.

ALL OF THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR.
Special weather statement, Aug 8, 6:51 PM CDT, 2 hours 13 minutes before
NDZ001>018-090100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
650 PM CDT SUN AUG 8 1993

...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR ROLETTE...TOWNER...
   PIERCE...WELLS AND KIDDER COUNTIES OF NORTH DAKOTA...
...THE TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF THE EASTERN HALF OF
NORTH DAKOTA UNTIL 11 PM CDT...

AT 640 PM CDT...SCATTERED THUNDERSTORMS WERE OCCURRING FROM 40 MILES
NORTHEAST OF DEVILS LAKE NORTH DAKOTA SOUTHWARD TO 30 MILES SOUTHEAST
OF JAMESTOWN. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES
AN HOUR.

OTHER THUNDERSTORMS WERE LOCATED IN SOUTHEAST MONTANA...75 MILES
SOUTHWEST OF DICKINSON NORTH DAKOTA MOVING EAST AT 35 MILES AN HOUR.
THESE TXHUNDERSTORMS PRODUCED WIND GUSTS TO 58 MPH AS THEY MOVED THROUGH
MILES CITY MONTANA THIS AFTERNOON.
RR
Special weather statement, Aug 8, 7:43 PM CDT, 1 hour 21 minutes before
NDZALL-090200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
745 PM CDT SUN AUG 8 1993

...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR BENSON AND EDDY
   COUNTIES OF NORTH DAKOTA...
...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EASTERN NORTH
DAKOTA UNTIL 11 PM CDT...

AT 740 PM CDT...SCATTERED THUNDERSTORMS WERE FOUND OVER EAST CENTRAL
NORTH DAKOTA WITH THE STRONGEST ACTIVITY 25 MILES SOUTHWEST OF
JAMESTOWN. THESE THUNDERSTORMS CONTINUE TO MOVE NORTHEAST AT 30 MILES
AN HOUR.

ANOTHER AREA OF THUNDERSTORMS WAS LOCATED IN SOUTHWEST NORTH DAKOTA
MOVING EAST AT 40 MILES AN HOUR. AT 730 PM CDT...THE WIND GUSTED TO
52 MPH AT BOWMAN NORTH DAKOTA.

RR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 8:22 PM CDTSevere Thunderstorm WarningBISTowner53 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1993Every 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.