Alert archive / South Dakota / Winter Storm Watches in 2020

Winter Storm Watch 1, NWS Sioux Falls, SD

January 15, 202017 counties in South Dakota; 11 counties in Iowa; 8 counties in Minnesota

NWS Sioux Falls, SD issued this winter storm watch at Jan 15, 2020, 2:44 PM CST for 17 counties in South Dakota; 11 counties in Iowa; 8 counties in Minnesota. It took effect at Jan 18, 2020, 12:00 AM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 15, 2020, 2:44 PM CST (20:44 UTC)
In effect from: Jan 18, 2020, 12:00 AM CST
Expired: Jan 17, 2020, 3:57 AM CST
In force
Issued by: NWS Sioux Falls, SD

All 36 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Clay County, SD, Hanson County, SD, Hutchinson County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 22 km from the middle of the area, began a volume at 20:44 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.

What forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this winter storm watch went out at Jan 15, 11:19 AM CST, 3 hours 25 minutes earlier.

Area forecast discussion, Jan 15, 11:19 AM CST, 3 hours 25 minutes before

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Hazardous weather outlook, Jan 15, 5:55 AM CST, 8 hours 49 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>
      <p class="small" id="detail">
        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 Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 15, 2:44 PM CST	Wind Chill Advisory	FSD	Beadle, Brookings, Kingsbury, Lake, Miner, Moody and 1 more	18 hr

Nearby

Winter Storm Watches in South Dakota, 2020 Winter Storm Watches in Iowa, 2020 Winter Storm Watches in Minnesota, 2020 Every winter storm watch in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.