Heavy snow and strong winds developed across the region associated with a classic Colorado Low type storm system around mid-day Wednesday, February 22, with strong winds lingering into the early morning hours of Thursday, February 23rd. 5 inches observed in LaBolt, and 8 inches reported 6 miles east of Hayes.
Every event with a place to put it; 23 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ABR wrote it up.
Heavy snow and strong winds developed across the region associated with a classic Colorado Low type storm system around mid-day Wednesday, February 22, with strong winds lingering into the early morning hours of Thursday, February 23rd. The highest total of 9.6 inches was observed 4 miles west-northwest of the Lake Cochrane State Recreational Area, with 8.5 inches observed in LaBolt, and 8 inches reported 6 miles east of Hayes. Official observations from Pierre, Watertown and Aberdeen were 7.5, 7.5 and 7.2 inches respectively. A peak wind gust of 56 mph was recorded at Macs Corner, and 54 mph at Summit, and many other locations experienced peak gusts between 40 and 50 mph.
Between the afternoon of Wednesday, February 22nd and Thursday, February 23rd, wind chills fell as low as 41 below zero in Eureka, and 40 below zero in Ridgeview and Selby, while most of the rest of central, north central and northeast South Dakota experienced wind chills of between 30 below zero to 40 below zero.
Travel was severely impacted by this system. The South Dakota Department of Transportation had already closed Interstate 29 on February 21st, and closed Interstate 90 on February 22nd, in addition to advising no travel for just about every route east of Highway 83. Additionally, law enforcement in 10 counties also issued no travel advised during the course of the storm. It took well into Thursday, February 23rd to open many of these roads as many of them had drifted shut.
In the midst of the storm, with moderate intensity snow, winds of 30 mph and temperatures around zero producing wind chills of 25 below zero, Mobridge fire department was dispatched to fight a structure fire.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Aberdeen, SD wrote its last area forecast discussion before the first event at Feb 22, 7:38 AM CST, 22 minutes earlier.
<!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 National Weather Service Aberdeen SD 411 AM CST Wed Feb 22 2023 SDZ003-015-033-045-048-231015- Corson-Dewey-Stanley-Jones-Lyman- 411 AM CST Wed Feb 22 2023 /311 AM MST Wed Feb 22 2023/ This Hazardous Weather Outlook is for central South Dakota and north central South Dakota. .DAY ONE...Today and tonight. A strong winter storm system will affect the area today and tonight. Widespread significant snowfall accumulations are expected. Strong winds, with gusts up to 35 mph, will lead to greatly reduced visibilities in blowing snow today and tonight. A Winter Storm Warning is in effect through Thursday morning. Much colder temperatures will push into the region, and when combined with the strong winds, will result in dangerous wind chill values. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Snow and strong wind will still occur Thursday morning, but will begin to taper off and come to an end Thursday afternoon. Dangerously cold wind chills will occur Thursday night into Friday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MNZ039-046-SDZ004>011-016>023-034>037-051-231015- Traverse-Big Stone-Campbell-McPherson-Brown-Marshall-Roberts- Walworth-Edmunds-Day-Potter-Faulk-Spink-Clark-Codington-Grant-Hamlin- Deuel-Sully-Hughes-Hyde-Hand-Buffalo- 411 AM CST Wed Feb 22 2023 This Hazardous Weather Outlook is for west central Minnesota, central South Dakota, north central South Dakota and northeast South Dakota. .DAY ONE...Today and tonight. A strong winter storm system will affect the area today and tonight. Widespread significant snowfall accumulations are expected. Strong winds, with gusts of 40 to 50 mph, will lead to greatly reduced visibilities in blowing snow today and tonight. A Blizzard Warning is in effect through Thursday morning. Much colder temperatures will push into the region, and when combined with the strong winds, will result in dangerous wind chill values. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Snow and strong wind will still occur Thursday morning, but will begin to taper off and come to an end Thursday afternoon. Dangerously cold wind chills will occur Thursday night into Friday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. Parkin
<!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><!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>The national radar mosaic for the moment the first event began.
21 blizzard, 2 heavy snow. Local standard time, as filed.
CoCoRaHS observer 7 miles north-northeast of Vivian reports 6 inches of snow.
Eight inches of snow was measured 6 miles east of Hayes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2023Every state in 2023This day in weather historyWarnings in South Dakota, February 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1078094, 1078095, 1077818, 1077820, 1077821, 1078092, 1078093, 1077823, 1077834, 1077839, 1077824, 1077833, 1077835, 1077825, 1077827, 1077828, 1077829, 1080215, 1077836, 1077830, 1077838, 1077831, 1077832.