Alert archive / North Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 97, NWS Bismarck, ND

July 30, 1995Burke County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 30, 1995, 12:40 AM CDT for Burke County, North Dakota. It was in force for 65 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, 12:40 AM CDT (05:40 UTC)
Expired: Jul 30, 1995, 1:45 AM CDT
In force: 65 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Burke County, ND

What was reported inside it

Time	Report	Where	Remark
Jul 30, 1:12 AM CDT	Tornado F0	Portal, ND	Reported by North Dakota Highway Patrol.

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

Bismarck Municip, ND (KBIS), launched 00:00Z, 5.7 hours before the alert went out and 263 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: 1948 J/kg
Mixed-layer CIN: -364 J/kg
Mixed-layer LCL: 1700 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 308 m²/s²
0-3 km storm-relative helicity: 469 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.

000 
TTAA00 KISN 300539 RRA
SVRISN
NDC013-300645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLISTON ND
1240 AM CDT SUN JUL 30 1995
 
THE NATIONAL WEATHER SERVICE IN WILLISTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST NORTH DAKOTA
 
   ...BURKE COUNTY
 
AT 1240 AM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS OVER
NORTHWEST WILLIAMS COUNTY MOVING NORTHEAST AT 65 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.

Issued	Product	Office	Counties	Lasted
Jul 29, 9:52 PM CDT	Severe Thunderstorm Warning	BIS	Divide	38 min
Jul 29, 10:19 PM CDT	Severe Thunderstorm Warning	BIS	Williams	56 min
Jul 29, 10:54 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	66 min
Jul 29, 11:07 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	68 min
Jul 29, 11:19 PM CDT	Severe Thunderstorm Warning	BIS	Burke	56 min
Jul 29, 11:35 PM CDT	Severe Thunderstorm Warning	BIS	Williams	55 min
Jul 30, 12:11 AM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	64 min
Jul 30, 12:33 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail	57 min
Jul 30, 1:22 AM CDT	Severe Thunderstorm Warning	BIS	Renville	29 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1995 Every 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.