Alert archive / North Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 90, NWS Bismarck, ND

July 29, 1995Williams County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 29, 1995, 10:19 PM CDT for Williams County, North Dakota. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Jul 29, 1995, 10:19 PM CDT (03:19 UTC)
Expired
Jul 29, 1995, 11:15 PM CDT
In force
56 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Williams County, ND

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.3 hours before the alert went out and 231 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, Glasgow Intl Airport, MT at 00:00Z on 1995-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1113 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, Glasgow Intl Airport, MT at 00:00Z on 1995-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
1113 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
2761 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KISN 300318 RRA
SVRISN
NDC105-300415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLISTON ND
1019 PM CDT SAT JUL 29 1995
 
THE NATIONAL WEATHER SERVICE IN WILLISTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST NORTH DAKOTA
 
   ...SOUTHERN WILLIAMS COUNTY
 
AT 1018 CDT RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF
WILLISTON MOVING NORTHEAST AT 35 MPH.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEDATHER CONDITIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 9:52 PM CDTSevere Thunderstorm WarningBISDivide38 min
Jul 29, 10:54 PM CDTSevere Thunderstorm WarningBISDivide, Williams66 min
Jul 29, 11:07 PM CDTSevere Thunderstorm WarningBISMcKenzie68 min
Jul 29, 11:19 PM CDTSevere Thunderstorm WarningBISBurke56 min
Jul 29, 11:35 PM CDTSevere Thunderstorm WarningBISWilliams55 min
Jul 30, 12:11 AM CDTSevere Thunderstorm WarningBISDivide, Williams64 min
Jul 30, 12:33 AM CDTSevere Thunderstorm WarningBISMountrail57 min
Jul 30, 12:40 AM CDTSevere Thunderstorm WarningBISBurke65 min
Jul 30, 1:22 AM CDTSevere Thunderstorm WarningBISRenville29 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1995Every severe thunderstorm warning in 1995

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.