Alert archive / North Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 99, NWS Bismarck, ND

August 2, 1995Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 2, 1995, 4:24 PM MDT for Morton County, North Dakota. It was in force for 66 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: Aug 2, 1995, 4:24 PM MDT (22:24 UTC)
Expired: Aug 2, 1995, 5:30 PM MDT
In force: 66 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Morton County, ND

The radar

The Bismarck radar (KBIS), 40 km from the middle of the area, began a volume at 22:26 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.

What was reported inside it

Time	Report	Where	Remark
Aug 2, 5:23 PM MDT	Tornado 0	Bismarck, ND

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 12:00Z, 10.4 hours before the alert went out and 45 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: 55 J/kg
Mixed-layer CIN: -484 J/kg
Mixed-layer LCL: 2004 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 250 m²/s²
0-3 km storm-relative helicity: 240 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 022227 RRA
SVRBIS
NDC059-022330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
524 PM CDT WED AUG 2 1995
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL NORTH DAKOTA
 
   ...EASTERN MORTON COUNTY
 
AT 525 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES
SOUTHWEST OF MANDAN...OVER THE CITY OF ALMONT...MOVING NORTHEAST AT 35
MPH.
 
THE STORM WILL MOVE NEAR THE CITY OF MANDAN AROUND 600 PM CDT.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
 
ABELING

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 4:53 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh	52 min
Aug 2, 4:56 PM MDT	Tornado Warning	BIS	Burleigh, Morton	49 min
Aug 2, 5:03 PM MDT	Severe Thunderstorm Warning	BIS	Oliver	42 min
Aug 2, 5:36 PM MDT	Severe Thunderstorm Warning	BIS	Morton	54 min
Aug 2, 5:48 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh	42 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; radar from the NEXRAD Level II archive.