Alert archive / North Dakota / Tornado Warnings in 1997

Tornado Warning 3, NWS Bismarck, ND

June 28, 1997LaMoure County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 28, 1997, 8:17 AM CDT for LaMoure County, North Dakota. It was in force for 28 min. 1 report 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: Jun 28, 1997, 8:17 AM CDT (13:17 UTC)
Expired: Jun 28, 1997, 8:45 AM CDT
In force: 28 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County LaMoure County, ND

The radar

The Aberdeen radar (KABR), 112 km from the middle of the area, began a volume at 13:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 28, 8:45 AM CDT	Hail 1.25	Verona, 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 1.3 hours before the alert went out and 169 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: 2256 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -116 m²/s²
0-3 km storm-relative helicity: -214 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 281317 RRA
TORBIS
NDC045-281345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE BISMARCK ND
817 AM CDT SAT JUN 28 1997

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 845 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE SOUTHEAST PART OF NORTH DAKOTA
      EASTERN LA MOURE

AT 810 AM CDT DOPPLER WEATHER RADAR INDICATED A TORNADO
FORMING 5 MILES NORTH OF LAMOURE OR 38 MILES SOUTHEAST OF
JAMESTOWN. THE PARENT THUNDERSTORM WAS SEVERE WITH GOLFBALL SIZE
HAIL AND WAS MOVING EAST AT 30 MPH.
.
THIS WARNING INCLUDES THE TOWNS OF LAMOURE AND VERONA

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

 LEBLANG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 8:17 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	43 min
Jun 28, 7:50 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure	40 min
Jun 28, 8:38 AM CDT	Severe Thunderstorm Warning	BIS	Dickey	67 min
Jun 28, 8:50 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure	40 min

Nearby

Tornado Warnings in North Dakota, 1997 Every tornado warning in 1997 Tornadoes in 1997

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; radar from the NEXRAD Level II archive.