Alert archive / North Dakota / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 30, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 11, 1989, 7:24 PM CDT for McKenzie County, Williams County, North Dakota. It was in force for 66 min. 4 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 11, 1989, 7:24 PM CDT (00:24 UTC)
- Expired
- Jul 11, 1989, 8:30 PM CDT
- In force
- 66 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties McKenzie County, ND, Williams County, ND
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 11, 7:25 PM CDT | Hail 1.75 | Mckenzie, ND | |
| Jul 11, 7:30 PM CDT | Hail 1 | Williams, ND | |
| Jul 11, 7:50 PM CDT | Hail 1.5 | Mckenzie, ND | |
| Jul 11, 8:16 PM CDT | Hail 1.75 | Mckenzie, ND |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 0.4 hours before the alert went out and 250 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.
- Mixed-layer CAPE
- 512 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1864 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 11, 6:13 PM CDT, 1 hour 11 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 11, 6:31 PM CDT, 53 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 11, 6:38 PM CDT, 46 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 11, 6:51 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 645 PM CDT TUE JUL 11 1989 ...A THUNDERSTORM IS DEVELOPING RAPIDLY NORTHWEST OF WILLISTON NORTH DAKOTA... AT 640 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED A RAPIDLY DEVELOPING THUNDERSTORM 14 MILES NORTHWEST OF WILLISTON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE OVER THE CITY OF WILLISTON SHORTLY AFTER 7 PM CDT. THIS THUNDERSTORM WILL PRODUCE BRIEF HEAVY ALONG WITH POSSIBLE STRONG GUSTY WINDS...HAIL AND DEADLY LIGHTNING. IF YOU ARE IN THE PATH OF THIS THUNDERSTORM BE PREPARED TO GO TO A SAFE SHELTER. KENNEDY
Special weather statement, Jul 11, 6:53 PM CDT, 31 minutes before
SPECIAL WEATHER STATEMENT ...CORRECTED... NATIONAL WEATHER SERVICE WILLISTON ND 645 PM CDT TUE JUL 11 1989 ...A THUNDERSTORM IS DEVELOPING RAPIDLY NORTHWEST OF WILLISTON NORTH DAKOTA... AT 640 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN WILLISTON INDICATED A RAPIDLY DEVELOPING THUNDERSTORM 14 MILES NORTHWEST OF WILLISTON. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE OVER THE CITY OF WILLISTON SHORTLY AFTER 7 PM CDT. THIS THUNDERSTORM WILL PRODUCE BRIEF HEAVY RAIN ALONG WITH POSSIBLE STRONG GUSTY WINDS...HAIL AND DEADLY LIGHTNING. IF YOU ARE IN THE PATH OF THIS THUNDERSTORM BE PREPARED TO GO TO A SAFE SHELTER. KENNEDY
Special weather statement, Jul 11, 7:18 PM CDT, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 715 PM CDT TUE JUL 11 1989 ...THUNDERSTORM MOVING INTO THE CITY OF MINOT... AT 715 PM CDT A THUNDERSTORM WAS MOVING INTO THE CITY OF MINOT2. THE THUNDERSTORM HAS INCREASED IN INTENSITY DURING THE PAST 15 MINUTES. VERY HEAVY RAIN...SMALL HAIL...WIND GUSTING TO 50 MPH AND INTENSE DANGEROUS LIGHTNING CAN BE EXPECTED IN THE CITY OF MINOT UNTIL 8 PM CDT. VAN ESS
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 7:09 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 66 min |
| Jul 11, 7:21 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 39 min |
| Jul 11, 8:28 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 32 min |
| Jul 11, 8:40 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 35 min |
| Jul 11, 8:42 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 48 min |
| Jul 11, 8:52 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 68 min |
| Jul 11, 9:07 PM CDT | Tornado Warning | BIS | McHenry | 23 min |
| Jul 11, 9:34 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 56 min |
| Jul 11, 10:55 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton | 35 min |
| Jul 11, 11:10 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 65 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1989Every severe thunderstorm warning in 1989
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.