Alert archive / North Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 95, NWS Bismarck, ND

July 30, 1995Divide County, Williams County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 30, 1995, 12:11 AM CDT for Divide County, Williams County, North Dakota. It was in force for 64 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 30, 1995, 12:11 AM CDT (05:11 UTC)
Expired
Jul 30, 1995, 1:15 AM CDT
In force
64 min
Issued by
NWS Bismarck, ND
Area
Whole counties

Counties Divide County, ND, Williams County, ND

What was reported inside it

TimeReportWhereRemark
Jul 30, 12:35 AM CDTTornado F0Epping, NDTornado destroyed a barn.

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 5.2 hours before the alert went out and 234 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 300510 RRA
SVRISN
NDC023-105-300615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLISTON ND
1211 AM CDT SUN JUL 30 1995
 
THE NATIONAL WEATHER SERVICE IN WILLISTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST NORTH DAKOTA
 
   ...EASTERN DIVIDE COUNTY...NORTHERN WILLIAMS COUNTY
 
AT 1203 PM CDT WINDS GUSTED TO 62 MPH AT THE AIR PORT IN WILLISTON.
SEVERE THUNDERSTORMS OVER SOUTHERN WILLIAMS COUNTY WERE MOVING NORTHEAST
AT 60 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 WEATHER CONDITIONS.
 
 
 KENNEDY
 
&

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, 10:19 PM CDTSevere Thunderstorm WarningBISWilliams56 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, 12:33 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.