Alert archive / North Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 111, NWS Bismarck, ND

September 14, 1994Bowman County, Slope County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 14, 1994, 6:43 PM MDT for Bowman County, Slope County, North Dakota. It was in force for 20 min.

The area

The counties it named.

The facts

Issued: Sep 14, 1994, 6:43 PM MDT (00:43 UTC)
Expired: Sep 14, 1994, 7:03 PM MDT
In force: 20 min
Issued by: NWS Bismarck, ND
Area: Whole counties

Counties Bowman County, ND, Slope County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.7 hours before the alert went out and 220 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: 2312 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 963 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.5

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, Sep 14, 2:32 PM MDT, 4 hours 11 minutes before

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Special weather statement, Sep 14, 2:34 PM MDT, 4 hours 9 minutes before

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Special weather statement, Sep 14, 3:44 PM MDT, 2 hours 59 minutes before

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Special weather statement, Sep 14, 6:20 PM MDT, 23 minutes before

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Special weather statement, Sep 14, 6:22 PM MDT, 21 minutes before

NDZ001>053-MNZ001>003-150130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
720 PM CDT WED SEP 14 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN AND MUCH
OF CENTRAL NORTH DAKOTA UNTIL 1 AM CDT...

AT 715 PM CDT...TWO THUNDERSTORMS WERE WITHIN THE RANGE OF BISMARCK
WEATHER RADAR. THE FIRST WAS LOCATED 10 MILES WEST OF DICKINSON AND
IT WAS MOVING NORTH 15 MPH. THE SECOND WAS 60 MILES SOUTHWEST OF
BISMARCK NEAR THE SO1UTH DAKOTA BORDER. IT WAS ALSO MOVING NORTH 15
MPH.

BOTH OF THESE STORMS LIKELY CONTAINED BRIEF HEAVY RAIN...DEADLY
LIGHTNING AND POSSIBLE SMALL HAIL. PERSONS IN THE PATH OF THESE STORMS
SHOULD SEEK SHELTER INDOORS.

LM

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 14, 6:15 PM MDT	Severe Thunderstorm Warning	BIS	Billings	60 min
Sep 14, 6:57 PM MDT	Severe Thunderstorm Warning	BIS	Williams	63 min
Sep 14, 8:16 PM MDT	Severe Thunderstorm Warning	BIS	Stark	44 min
Sep 14, 8:29 PM MDT	Severe Thunderstorm Warning	BIS	Dunn	61 min
Sep 14, 9:09 PM MDT	Severe Thunderstorm Warning	BIS	Stark	21 min
Sep 14, 9:09 PM MDT	Severe Thunderstorm Warning	BIS	Morton	51 min
Sep 14, 10:35 PM MDT	Tornado Warning	BIS	Ward	40 min
Sep 14, 11:28 PM MDT	Severe Thunderstorm Warning	BIS	Bottineau	27 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1994 Every 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.