Alert archive / Iowa / Frost Advisories in 2025

Frost Advisory 1, NWS Des Moines, IA

October 21, 202529 counties in Iowa

NWS Des Moines, IA issued this frost advisory at Oct 21, 2025, 2:00 PM CDT for 29 counties in Iowa. It took effect at Oct 22, 2025, 2:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Oct 21, 2025, 2:00 PM CDT (19:00 UTC)
In effect from: Oct 22, 2025, 2:00 AM CDT
Expired: Oct 22, 2025, 9:00 AM CDT
In force: 7 hr
Issued by: NWS Des Moines, IA

All 29 counties

Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Decatur County, IA, Franklin County, IA, Greene County, IA, Guthrie County, IA, Hamilton County, IA, Hardin County, IA, Humboldt County, IA, Madison County, IA, Marshall County, IA, Pocahontas County, IA, Polk County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Webster County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 39 km from the middle of the area, began a volume at 19:01 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 frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this frost advisory went out at Oct 20, 6:36 PM CDT, 19 hours 24 minutes earlier.

Area forecast discussion, Oct 20, 6:36 PM CDT, 19 hours 24 minutes before

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Hazardous weather outlook, Oct 20, 2:31 PM CDT, 23 hours 29 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.
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Nearby

Frost Advisories in Iowa, 2025 Every frost advisory in 2025

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.