Alert archive / North Dakota / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 148, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 31, 2019, 9:42 PM CDT for Cavalier County, North Dakota. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 31, 2019, 9:42 PM CDT (02:42 UTC)
- Expired
- Jul 31, 2019, 10:45 PM CDT
- In force
- 63 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cavalier County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 162 km from the middle of the area, began a volume at 02:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.7 hours before the alert went out and 278 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
- 1631 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 6:14 PM CDT, 3 hours 28 minutes earlier.
Area forecast discussion, Jul 31, 6:14 PM CDT, 3 hours 28 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>Hazardous weather outlook, Jul 31, 3:39 PM CDT, 6 hours 3 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 339 PM CDT Wed Jul 31 2019 MNZ001>009-013>017-022>024-027>032-040-NDZ016-026>030-038-039-049- 052-053-012045- West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods- West Marshall-East Marshall-North Beltrami-Pennington-Red Lake- East Polk-North Clearwater-South Beltrami-Mahnomen- South Clearwater-Hubbard-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Wadena-Grant-Eastern Walsh County- Nelson-Grand Forks-Griggs-Steele-Traill-Barnes-Cass-Ransom- Sargent-Richland- 339 PM CDT Wed Jul 31 2019 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Isolated thunderstorms are possible each afternoon and evening Thursday through Saturday. The best chance for storms will be along and north of Highway 200 for Thursday. Confidence in storm locations remains low for Friday and Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. NDZ006>008-014-015-024-054-012045- Towner-Cavalier-Pembina-Benson-Ramsey-Eddy-Western Walsh County- 339 PM CDT Wed Jul 31 2019 This hazardous weather outlook is for portions of eastern North Dakota. .DAY ONE...This Afternoon and Tonight Isolated severe thunderstorms are possible after 8 PM, with 1 inch hail and 60 mph wind gusts being the main hazard. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Isolated thunderstorms are possible each afternoon and evening Thursday through Saturday. The best chance for storms will be along and north of Highway 200 for Thursday. Confidence in storm locations remains low for Friday and Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
In the hours before
Local storm report, Jul 31, 4:00 PM CDT, 5 hours 42 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>Local storm report, Jul 31, 4:25 PM CDT, 5 hours 17 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 31, 9:26 PM CDT, 16 minutes before
Special Weather Statement National Weather Service Grand Forks ND 926 PM CDT Wed Jul 31 2019 NDZ007-010330- Cavalier ND- 926 PM CDT Wed Jul 31 2019 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CAVALIER COUNTY UNTIL 1030 PM CDT... At 925 PM CDT, Doppler radar was tracking a strong thunderstorm over Maida, or 17 miles north of Langdon, moving southeast at 25 mph. Penny size hail and winds in excess of 40 mph will be possible with this storm. This strong thunderstorm will be near... Mount Carmel around 940 PM CDT. Langdon around 1005 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Grand Forks. && LAT...LON 4900 9822 4875 9803 4861 9845 4900 9872 TIME...MOT...LOC 0225Z 335DEG 22KT 4902 9839 Hopkins
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 3:19 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 26 min |
| Aug 1, 3:38 PM CDT | Severe Thunderstorm Warning | FGF | Lake of the Woods | 37 min |
| Aug 1, 4:18 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 57 min |
| Jul 31, 9:26 PM CDT | Special Weather Statement | FGF | Cavalier | 64 min |
| Jul 31, 10:45 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 45 min |
| Jul 31, 11:09 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 51 min |
| Jul 31, 11:29 PM CDT | Special Weather Statement | FGF | Walsh | 61 min |
| Jul 31, 11:50 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 40 min |
| Jul 31, 11:58 PM CDT | Special Weather Statement | FGF | Cavalier | 47 min |
| Aug 1, 12:14 AM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 25 min |
| Aug 1, 12:36 AM CDT | Special Weather Statement | FGF | Cavalier | 54 min |
| Aug 1, 1:25 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey, Walsh | 35 min |
| Aug 1, 2:00 AM CDT | Special Weather Statement | FGF | Walsh | 30 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2019Every severe thunderstorm warning in 2019
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; radar from the NEXRAD Level II archive.