Alert archive / Iowa / Winter Storm Watches in 2018

Winter Storm Watch 10, NWS Sioux Falls, SD

April 12, 20184 counties in Iowa

NWS Sioux Falls, SD issued this winter storm watch at Apr 12, 2018, 3:45 PM CDT for 4 counties in Iowa. It took effect at Apr 14, 2018, 4:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 12, 2018, 3:45 PM CDT (20:45 UTC)
In effect from
Apr 14, 2018, 4:00 AM CDT
Expired
Apr 13, 2018, 3:25 PM CDT
In force
Issued by
NWS Sioux Falls, SD

Counties Buena Vista County, IA, Cherokee County, IA, Ida County, IA, Woodbury County, IA

The radar

The Sioux Falls radar (KFSD), 147 km from the middle of the area, began a volume at 20:42 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 Apr 12, 12:53 PM CDT, 2 hours 52 minutes earlier.

Area forecast discussion, Apr 12, 12:53 PM CDT, 2 hours 52 minutes before
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Hazardous weather outlook, Apr 12, 3:24 PM CDT, 21 minutes before
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<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>
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</body>
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The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 3:45 PM CDTBlizzard WarningFSDAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more60 hr

Nearby

Winter Storm Watches in Iowa, 2018Every winter storm watch in 2018

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.