Alert archive / North Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 73, NWS Bismarck, ND

July 18, 1994Logan County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 18, 1994, 8:33 PM CDT for Logan County, North Dakota. It was in force for 42 min.

The area

The counties it named.

The facts

Issued: Jul 18, 1994, 8:33 PM CDT (01:33 UTC)
Expired: Jul 18, 1994, 9:15 PM CDT
In force: 42 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Logan County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.6 hours before the alert went out and 100 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: 692 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 3657 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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, Jul 18, 4:36 PM CDT, 3 hours 57 minutes before

NDZ003>006-011>015-019>025-034>037-042-045>047-050-182235-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
432 PM CDT (332 PM MDT) MON JUL 18 1994

...TORNADO WATCH FOR MUCH OF CENTRAL NORTH DAKOTA UNTIL 10 PM CDT...

A TORNADO WATCH IS IN EFFECT FOR MUCH OF CENTRAL NORTH DAKOT UNTIL
10 PM CDT. THE POTENTIAL FOR SEVERE WEATHER WITH THIS SYSTEM IS
UNUSUALLY HIGH.

AT 430 PM CDT...WEATHER RADAR IN BISMARCK SHOWED STRONG THUNDERSTORMS
DEVELOPING NEAR SELFRIDGE OR ABOUT 50 MILES SOUTH/SOUTHWEST OF
BISMARCK. THESE STORMS WERE MOVING TO THE EAST AT 25 MPH.

ANOTHER AREA OF THUNDERSTORMS WAS IN WESTERN WARD AND RENVILLE
COUNTIES ABOUT 25 MILES WEST/NORTHWEST OF MINOT. A FUNNEL CLOUD
WAS REPORTED BRIEFLY BY PERSONNEL FROM THE MINOT AIR FORCE BASE.
HEAVY RAIN...GUSTY WINDS AND SMALL HAIL ARE LIKELY WITH THESE
STORMS.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.

FORS

Special weather statement, Jul 18, 5:43 PM CDT, 2 hours 50 minutes before

NDZ003>006-011>015-019>025-034>037-042-045>047-050-182340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
540 PM CDT (440 PM MDT) MON JUL 18 1994

...TORNADO WATCH FOR MUCH OF CENTRAL NORTH DAKOTA UNTIL 10 PM CDT...

AT 535 PM CDT...WEATHER RADAR IN BISMARCK SHOWED TWO AREAS OF STRONG
THUNDERSTORMS ACROSS CENTRAL NORTH DAKOTA. THESE STORMS WERE MOVING
TO THE EAST AT 25 MPH.

ONE AREA WAS IN EASTERN SIOUX AND WESTERN EMMONS COUNTIES OF SOUTH
CENTRAL NORTH DAKOTA. THESE STORMS WERE ALONG THE MISSOURI RIVER
ABOUT 45 MILES SOUTH OF BISMARCK.

ANOTHER AREA OF STRONG STORMS WAS IN EASTERN WARD COUNTY...EAST OF
THE MINOT AREA. THESE STORMS WILL BE MOVING INTO WESTERN MCHENRY
COUNTY INTO THE VELVA...BERGEN AND DEERING AREAS.

IF THREATENING WEATHER APPROACHES...SEEK SHELTER INDOORS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION
FOR LATER STATEMENTS OR WARNINGS CONCERNING THIS SEVERE WEATHER
SITUATION.

FORS

Special weather statement, Jul 18, 6:55 PM CDT, 1 hour 38 minutes before

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Special weather statement, Jul 18, 6:57 PM CDT, 1 hour 36 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.
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        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.

Issued	Product	Office	Counties	Lasted
Jul 18, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	46 min
Jul 18, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	28 min
Jul 18, 7:48 PM CDT	Severe Thunderstorm Warning	BIS	Logan, Stutsman	42 min
Jul 18, 8:18 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	42 min
Jul 18, 8:23 PM CDT	Severe Thunderstorm Warning	BIS	Ramsey	67 min
Jul 18, 9:24 PM CDT	Severe Thunderstorm Warning	BIS	Ramsey	36 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.