Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 46, NWS Bismarck, ND

June 28, 1997Bottineau County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 28, 1997, 9:32 PM CDT for Bottineau County, North Dakota. It was in force for 43 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, 9:32 PM CDT (02:32 UTC)
Expired: Jun 28, 1997, 10:15 PM CDT
In force: 43 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Bottineau County, ND

What was reported inside it

Time	Report	Where	Remark
Jun 28, 10:06 PM CDT	Tornado F0	Eckman, ND	brief tornado touchdown.

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 00:00Z, 2.5 hours before the alert went out and 225 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: 547 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 2546 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 25 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

956 
WUUS1 KBIS 290232 RRA
SVRBIS
NDC009-290315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
932 PM CDT SAT JUN 28 1997
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL NORTH DAKOTA
 
   ...WESTERN BOTTINEAU COUNTY
 
AT 927 PM CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 40 MILES
NORTH OF MINOT OR 7 MILES NORTH OF LANSFORD. THE STORM WAS MOVING
SOUTHEAST 15 MPH. THE TOWNS OF LANSFORD...MAXBASS AND ECKMAN ARE IN ITS
PATH.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 10:07 PM CDT	Tornado Warning	BIS	Bottineau, McHenry	53 min
Jun 28, 11:06 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	69 min
Jun 28, 11:17 PM CDT	Tornado Warning	BIS	McHenry	28 min
Jun 28, 11:46 PM CDT	Tornado Warning	BIS	McHenry	44 min
Jun 29, 12:16 AM CDT	Severe Thunderstorm Warning	BIS	Stark	59 min
Jun 29, 12:32 AM CDT	Severe Thunderstorm Warning	BIS	McKenzie	58 min
Jun 29, 12:33 AM CDT	Severe Thunderstorm Warning	BIS	McHenry	57 min
Jun 29, 2:06 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	69 min
Jun 29, 4:45 PM CDT	Severe Thunderstorm Warning	BIS	Williams	60 min
Jun 29, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	Williams	56 min
Jun 29, 6:56 PM CDT	Severe Thunderstorm Warning	BIS	Williams	64 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1997 Every severe thunderstorm warning 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.