Alert archive / North Dakota / Tornado Warnings in 1993

Tornado Warning 2, NWS Bismarck, ND

June 21, 1993Eddy County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 21, 1993, 7:30 PM CDT for Eddy County, North Dakota. It was in force for 30 min.

The area

The counties it named.

The facts

Issued: Jun 21, 1993, 7:30 PM CDT (00:30 UTC)
Expired: Jun 21, 1993, 8:00 PM CDT
In force: 30 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Eddy County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 172 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: 1422 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 2069 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 27 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 
TTAA00 KBIS 220030
TORBIS
NDC027-220100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE BISMARCK ND
730 PM CDT MON JUN 21 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE EAST CENTRAL PART OF NORTH DAKOTA
      WESTERN EDDY

AT 725 PM CDT...A TORNADO WAS SIGHTED 5 MILES SOUTHEAST OF NEW
ROCKFORD NORTH DAKOTA...50 MILES NORTH NORTHWEST OF JAMESTOWN
MOVING NORTHWEST AT 20 MILES AN HOUR.

THIS WARNING INCLUDES THE TOWN OF NEW ROCKFORD.

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.

 RJR

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, Jun 21, 6:59 PM CDT, 31 minutes before

NDZ012-013-220100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
700 PM CDT MON JUN 21 1993

...STRONG THUNDERSTORMS IN EAST CENTRAL NORTH DAKOTA...

AT 650 PM CDT...AN INTENSE THUNDERSTORM WAS LOCATED OVER NORTHEAST
FOSTER COUNTY...40 MILES NORTH OF JAMESTOWN DRIFTING SLOWLY NORTHWEST.

BRIEF VERY HEAVY RAIN AND SMALL HAIL CAN BE EXPECTED FROM THIS STORM.
WIND GUSTS TO 45 MPH ARE ALSO POSSIBLE FROM THIS THUNDERSTORM.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:14 PM CDT	Tornado Warning	BIS	Foster	31 min
Jun 22, 4:58 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	42 min
Jun 22, 5:59 PM CDT	Tornado Warning	BIS	Burleigh, Sheridan	46 min
Jun 22, 6:29 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Logan	46 min
Jun 22, 6:30 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	45 min
Jun 22, 6:39 PM CDT	Severe Thunderstorm Warning	BIS	Sioux	51 min

Nearby

Tornado Warnings in North Dakota, 1993 Every tornado warning in 1993 Tornadoes 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.