Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 90, NWS Bismarck, ND

July 13, 1997McLean County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 13, 1997, 1:47 PM CDT for McLean County, North Dakota. It was in force for 58 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
Jul 13, 1997, 1:47 PM CDT (18:47 UTC)
Expired
Jul 13, 1997, 2:45 PM CDT
In force
58 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County McLean County, ND

What was reported inside it

TimeReportWhereRemark
Jul 13, 1:55 PM CDTHail 0.75Riverdale, NDhail occurred 2 NE of Riverdale

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, 6.8 hours before the alert went out and 104 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 12:00Z on 1997-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 545 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 12:00Z on 1997-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 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
545 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
108 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 131848 RRA
SVRBIS
NDC055-131945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
147 PM CDT SUN JUL 13 1997
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL NORTH DAKOTA
 
   ...WESTERN MCLEAN COUNTY
 
AT 147 PM CDT RADAR DETECTED A SEVERE THUNDERSTORM 8 SOUTH OF RAUB OR 45
SOUTHWEST OF MINOT. MOVEMENT WAS NORTH AT 20 MPH. LARGE HAIL IS POSSIBLE
WITH THIS STORM.
 
RAUB IS IN THE DIRECT PATH OF THIS STORM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
NOAH

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.