Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 70, NWS Bismarck, ND

July 10, 1997Burke County, Mountrail County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 10, 1997, 7:45 PM CDT for Burke County, Mountrail County, North Dakota. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 10, 1997, 7:45 PM CDT (00:45 UTC)
Expired
Jul 10, 1997, 8:45 PM CDT
In force
60 min
Issued by
NWS Bismarck, ND
Area
Whole counties

Counties Burke County, ND, Mountrail County, ND

The radar

The Minot AFB radar (KMBX), 117 km from the middle of the area, began a volume at 00:45 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 10, 5:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.8 hours before the alert went out and 232 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 1997-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4434 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 1997-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 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
4434 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1269 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
176 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 110046 RRA
SVRBIS
NDC013-061-110145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
745 PM CDT THU JUL 10 1997
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST NORTH DAKOTA
 
   ...EASTERN BURKE COUNTY...MOUNTRAIL COUNTY
 
AT 742 PM CDT WEATHER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
FROM 85 MILES SOUTHWEST OF MINOT NEAR CHARLSON TO 70 MILES WEST OF MINOT
NEAR BATTLEVIEW. THE STORMS WERE MOVING NORTH NORTHEAST AT 15 MPH. TOWNS
NEAR THE PATH OF THE STORMS INCLUDE BATTLEVIEW..BOWBELLS..STANLEY.. AND
NEW TOWN. BECAUSE OF THEIR SLOW MOVEMENT THESE STORMS MAY PRODUCE
LOCALIZED FLOODING.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
 
LEBLANG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 7:11 PM CDTSevere Thunderstorm WarningBISDunn64 min
Jul 10, 8:00 PM CDTSevere Thunderstorm WarningBISMcLean, Mercer60 min
Jul 10, 8:25 PM CDTSevere Thunderstorm WarningBISGrant, Sioux65 min
Jul 10, 8:41 PM CDTTornado WarningBISMercer34 min
Jul 10, 8:51 PM CDTSevere Thunderstorm WarningBISMorton54 min
Jul 10, 8:52 PM CDTSevere Thunderstorm WarningBISMountrail, Ward68 min
Jul 10, 9:09 PM CDTSevere Thunderstorm WarningBISBottineau, Renville66 min
Jul 10, 9:15 PM CDTTornado WarningBISWard30 min
Jul 10, 9:25 PM CDTSevere Thunderstorm WarningBISBurleigh, Morton65 min
Jul 10, 9:49 PM CDTSevere Thunderstorm WarningBISBottineau, McHenry56 min
Jul 10, 9:51 PM CDTSevere Thunderstorm WarningBISMcLean, Mercer69 min
Jul 10, 9:57 PM CDTTornado WarningBISMcHenry33 min
Jul 10, 10:10 PM CDTSevere Thunderstorm WarningBISSioux50 min
Jul 10, 10:50 PM CDTSevere Thunderstorm WarningBISMcHenry, Pierce40 min
Jul 10, 10:50 PM CDTSevere Thunderstorm WarningBISEmmons40 min
Jul 10, 11:29 PM CDTSevere Thunderstorm WarningBISPierce, Rolette46 min
Jul 11, 12:01 AM CDTSevere Thunderstorm WarningBISStutsman44 min
Jul 11, 4:31 PM CDTSevere Thunderstorm WarningBISRenville, Ward44 min
Jul 11, 4:54 PM CDTSevere Thunderstorm WarningBISBurke66 min
Jul 11, 6:23 PM CDTSevere Thunderstorm WarningBISMcLean, Oliver67 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1997Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.