Alert archive / North Dakota / Special Weather Statements in 2021
Special Weather Statement, NWS Bismarck, ND
NWS Bismarck, ND issued this special weather statement at May 20, 2021, 6:05 PM CDT for Kidder County, North Dakota. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 20, 2021, 6:05 PM CDT (23:05 UTC)
- Expired
- May 20, 2021, 6:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Bismarck, ND
County Kidder County, ND
The radar
The Bismarck radar (KBIS), 106 km from the middle of the area, began a volume at 23:04 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
Rapid City, SD (KUNR), launched 12:00Z, 11.1 hours before the alert went out and 413 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1629 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Bismarck, ND wrote its last area forecast discussion before this special weather statement went out at May 20, 2:29 PM CDT, 3 hours 36 minutes earlier.
Area forecast discussion, May 20, 2:29 PM CDT, 3 hours 36 minutes before
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<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>
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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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</html>Hazardous weather outlook, May 20, 5:49 PM CDT, 16 minutes before
Hazardous Weather Outlook National Weather Service Bismarck ND 549 PM CDT Thu May 20 2021 NDZ001>005-009>013-212300- Divide-Burke-Renville-Bottineau-Rolette-Williams-Mountrail-Ward- McHenry-Pierce- 549 PM CDT Thu May 20 2021 This Hazardous Weather Outlook is for portions of north central North Dakota and northwest North Dakota. .DAY ONE...Tonight Scattered thunderstorms are possible tonight. Severe weather is not anticipated with these storms, but gusty winds and small hail will be possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Scattered thunderstorms possible on Friday. A few storms could become severe. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. NDZ017>020-031>034-040>045-212300- McKenzie-Dunn-Mercer-Oliver-Golden Valley-Billings-Stark-Morton- Slope-Hettinger-Grant-Bowman-Adams-Sioux- 549 PM CDT Thu May 20 2021 /449 PM MDT Thu May 20 2021/ This Hazardous Weather Outlook is for portions of northwest North Dakota, south central North Dakota, and southwest North Dakota. .DAY ONE...Tonight Scattered thunderstorms are possible late this evening into the overnight hours. A few storms may become strong to severe. The main hazards will be hail up to quarter size and damaging wind gusts up to 60 mph. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Scattered thunderstorms possible on Friday. A few storms could become severe. .SPOTTER INFORMATION STATEMENT... Weather spotters may be needed today. NDZ021>023-025-035>037-046>048-050-051-212300- McLean-Sheridan-Wells-Foster-Burleigh-Kidder-Stutsman-Emmons- Logan-La Moure-McIntosh-Dickey- 549 PM CDT Thu May 20 2021 This Hazardous Weather Outlook is for portions of south central North Dakota and southeast North Dakota. .DAY ONE...Tonight Thunderstorms are expected to continue moving through the area this evening. A few may become strong to severe. The main hazards will be hail up to quarter size and damaging wind gusts up to 60 mph. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Scattered thunderstorms possible on Friday. A few storms could become severe. .SPOTTER INFORMATION STATEMENT... Weather spotters may be needed today.
In the hours before
Local storm report, May 20, 5:12 PM CDT, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
512 PM CDT THU MAY 20 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM HEAVY RAIN GACKLE 46.63N 99.15W
05/20/2021 M2.60 INCH STUTSMAN ND TRAINED SPOTTER
NDARB OBSERVER. 24 HOUR RAIN TOTAL.
&&Special weather statement, May 20, 6:05 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Bismarck ND 605 PM CDT Thu May 20 2021 NDZ036-037-202345- Kidder ND-Stutsman ND- 605 PM CDT Thu May 20 2021 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL KIDDER AND SOUTHWESTERN STUTSMAN COUNTIES UNTIL 645 PM CDT... At 605 PM CDT, a strong thunderstorm was located 5 miles southwest of Medina, moving north at 20 mph. Penny size hail and wind gusts to 50 mph will be possible with this storm. Locations impacted include... Medina, Crystal Springs and Chase Lake. Very heavy rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 4667 9925 4680 9961 4706 9959 4707 9918 TIME...MOT...LOC 2305Z 178DEG 17KT 4686 9941 SCHILD
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:30 PM CDT | Special Weather Statement | BIS | Logan | 30 min |
| May 19, 8:07 PM CDT | Special Weather Statement | BIS | Logan | 38 min |
| May 20, 3:59 AM CDT | Areal Flood Advisory | BIS | Logan, Stutsman | 5 hr |
| May 20, 6:38 PM CDT | Special Weather Statement | BIS | Stutsman | 37 min |
Nearby
Special Weather Statements in North Dakota, 2021Every special weather statement in 2021
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.