Alert archive / North Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 117, NWS Bismarck, ND

September 15, 1994Bottineau County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 15, 1994, 12:28 AM CDT for Bottineau County, North Dakota. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Sep 15, 1994, 12:28 AM CDT (05:28 UTC)
Expired
Sep 15, 1994, 12:55 AM CDT
In force
27 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Bottineau County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 5.5 hours before the alert went out and 225 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 1994-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2312 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 1994-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939587897Sfc1 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
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

Local storm report, Sep 14, 10:57 PM CDT, 1 hour 31 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE WILLISTON ND
1045 PM CDT WED SEP 14 1994

TIME         EVENT                       LOCATION

645 PM MDT   MOSTLY PEA SIZE HAIL        10 MILES WEST OF FAIRFIELD
             BUT A FEW STONES AS         NORTHERN BILLINGS COUNTY
             BIG AS A DIME.  LASTED
             5 TO 10 MINUTES.
             NO DAMAGE.

JP MARTIN
Special weather statement, Sep 14, 11:00 PM CDT, 1 hour 28 minutes before
NDZ001>053-MNZ001>003-150130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1100 PM CDT WED SEP 14 1994

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MORTON COUNTY HAS
EXPIRED...
...THE SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR WESTERN AND
MUCH OF CENTRAL NORTH DAKOTA UNTIL 1 AM CDT...

THE SEVERE THUNDERSTORM IN WESTERN MORTON COUNTY HAS WEAKENED AND
THE SEVERE THUNDERSTORM WARNING HAS EXPIRED. AT 1044 PM CDT...
HEBRON REPORTED PEA SIZE HAIL AND VERY HEAVY RAIN. THE OBSERVER AT
HEBRON ALSO REPORTED A LITTLE MORE THAN AN INCH OF RAIN IN 20 MINUTES.

ELSEWHERE...A NARROW BAND OF THUNDERSTORMS 20 MILES WIDE EXTENDED
FROM JUST WEST OF MINOT TO THE STORM IN WESTERN MORTON COUNTY. THIS
BAND OF THUNDERSTORMS WAS MOVING EAST 25 MPH. PERSONS IN THE PATH OF
THESE STORMS SHOULD FIND SHELTER INDOORS.
LM
Special weather statement, Sep 14, 11:03 PM CDT, 1 hour 25 minutes before
NDZ001>053-MNZ001>003-150130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1100 PM CDT WED SEP 14 1994

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MORTON COUNTY HAS
EXPIRED...
...THE SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR WESTERN AND
MUCH OF CENTRAL NORTH DAKOTA UNTIL 1 AM CDT...

THE SEVERE THUNDERSTORM IN WESTERN MORTON COUNTY HAS WEAKENED AND
THE SEVERE THUNDERSTORM WARNING HAS EXPIRED. AT 1044 PM CDT...
HEBRON REPORTED PEA SIZE HAIL AND VERY HEAVY RAIN. THE OBSERVER AT
HEBRON ALSO REPORTED A LITTLE MORE THAN AN INCH OF RAIN IN 20 MINUTES.

ELSEWHERE...A NARROW BAND OF THUNDERSTORMS 20 MILES WIDE EXTENDED
FROM JUST WEST OF MINOT TO THE STORM IN WESTERN MORTON COUNTY. THIS
BAND OF THUNDERSTORMS WAS MOVING EAST 25 MPH. PERSONS IN THE PATH OF
THESE STORMS SHOULD FIND SHELTER INDOORS.
LM
Special weather statement, Sep 14, 11:34 PM CDT, 54 minutes before
NDZ001-002-009-010-017-018-031-032-150540-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLISTON ND
1135 PM CDT (1035 PM MDT) WED SEP 14 1994

...THUNDERSTORMS WERE STARTING TO DECREASE IN INTENSITY OVER
WESTERN NORTH DAKOTA...
...A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 1 AM CDT FOR WESTERN
NORTH DAKOTA...

AT 1130 PM CDT...1030 MOUNTAIN...THUNDERSTORMS WERE SCATTERED OVER
WESTERN NORTH DAKOTA AND NORTHEAST MONTANA.  THE STRONGEST STORMS
WERE FROM 25 MILES WEST TO 15 MILES SOUTHWEST OF WILLISTON...ALONG
THE MONTANA/NORTH DAKOTA BORDER.  OTHER THUNDERSTORMS WERE ALONG THE
NORTH DAKOTA/SASKATCHEWAN BORDER...SCATTERED BETWEEN FORTUNA AND
BOWBELLS.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT ABOUT 25 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE DEADLY LIGHTNING AND A BRIEF PERIOD OF
HEAVY RAIN.  SMALL HAIL IS ALSO POSSIBLE.

JP MARTIN
Local storm report, Sep 14, 11:55 PM CDT, 33 minutes before
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Local storm report, Sep 15, 12:02 AM CDT, 26 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 7:15 PM CDTSevere Thunderstorm WarningBISBillings60 min
Sep 14, 7:43 PM CDTSevere Thunderstorm WarningBISBowman, Slope20 min
Sep 14, 7:57 PM CDTSevere Thunderstorm WarningBISWilliams63 min
Sep 14, 9:16 PM CDTSevere Thunderstorm WarningBISStark44 min
Sep 14, 9:29 PM CDTSevere Thunderstorm WarningBISDunn61 min
Sep 14, 10:09 PM CDTSevere Thunderstorm WarningBISStark21 min
Sep 14, 10:09 PM CDTSevere Thunderstorm WarningBISMorton51 min
Sep 14, 11:35 PM CDTTornado WarningBISWard40 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.