Alert archive / North Dakota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS Bismarck, ND

May 31, 1996Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at May 31, 1996, 1:57 PM MDT for Morton County, North Dakota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 31, 1996, 1:57 PM MDT (19:57 UTC)
Expired
May 31, 1996, 2:45 PM MDT
In force
48 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 20:01 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.0 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-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 1996-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 184 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 1996-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
184 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
205 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 KBIS 311957
SVRBIS
NDC059-312045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
257 PM CDT FRI MAY 31 1996
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL NORTH DAKOTA
 
   ...SOUTHERN MORTON COUNTY
 
AT 155 MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN
OF ST ANTHONY...12 MILES SOUTHWEST OF BISMARCK...MOVING NORTHEAST AT 25
MPH. THIS STORM WILL PASS OVER ST ANTHONY AND HUFF.
 
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.

IssuedProductOfficeCountiesLasted
May 30, 6:07 PM MDTSevere Thunderstorm WarningBISBurleigh, Oliver68 min
May 30, 6:14 PM MDTTornado WarningBISMorton31 min
May 30, 7:18 PM MDTSevere Thunderstorm WarningBISBurleigh57 min
May 31, 12:46 PM MDTSevere Thunderstorm WarningBISSioux59 min
May 31, 1:46 PM MDTSevere Thunderstorm WarningBISSioux44 min
May 31, 2:28 PM MDTSevere Thunderstorm WarningBISEmmons62 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.