Alert archive / North Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 40, NWS Bismarck, ND

June 21, 1994Burleigh County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 21, 1994, 8:09 PM CDT for Burleigh County, North Dakota. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jun 21, 1994, 8:09 PM CDT (01:09 UTC)
Expired
Jun 21, 1994, 9:15 PM CDT
In force
66 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Burleigh County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.2 hours before the alert went out and 29 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 00:00Z on 1994-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1250 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 00:00Z on 1994-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
1250 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1872 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.1
Supercell composite
8.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 21, 7:12 PM CDT, 57 minutes before
NDZ021-220115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
712 PM CDT TUE JUN 21 1994

AT 7 PM CDT A STRONG THUNDERSTORM WAS LOCATED 40 MILES NORTH OF
BISMARCK OR 6 MILES NORTH OF WASHBURN. THE THUNDERSTORM WAS MOVING
EAST AT 15 MPH.

THE THUNDERSTORM WILL CONTAIN EXTREMELY HEAVY RAIN WITH FLOODING OF
ROADS AND LOW LYING AREAS LIKELY. THE THUNDERSTORM MAY ALSO CONTAIN
HAIL.

IF YOU LIVE IN SOUTHERN MCLEAN COUNTY...MONITOR WEATHER CONDITIONS AND
TAKE SHELTER IF THREATENING WEATHER MOVES IN YOUR DIRECTION.
IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A
STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

VAN ESS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:29 PM CDTSevere Thunderstorm WarningBISMcLean46 min
Jun 22, 3:34 AM CDTSevere Thunderstorm WarningBISBurleigh56 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1994Every severe thunderstorm warning in 1994

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.