Alert archive / Colorado / Winter Weather Advisories in 2021

Winter Weather Advisory 30, NWS Denver/Boulder, CO

October 25, 2021Grand County, Jackson County, Colorado

NWS Denver/Boulder, CO issued this winter weather advisory at Oct 25, 2021, 3:02 PM MDT for Grand County, Jackson County, Colorado. It took effect at Oct 26, 2021, 6:00 AM MDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Oct 25, 2021, 3:02 PM MDT (21:02 UTC)
In effect from: Oct 26, 2021, 6:00 AM MDT
Expired: Oct 27, 2021, 12:00 AM MDT
In force: 18 hr
Issued by: NWS Denver/Boulder, CO

Counties Grand County, CO, Jackson County, CO

The radar

The Cheyenne radar (KCYS), 147 km from the middle of the area, began a volume at 21:03 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 weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this winter weather advisory went out at Oct 25, 10:45 AM MDT, 4 hours 17 minutes earlier.

Area forecast discussion, Oct 25, 10:45 AM MDT, 4 hours 17 minutes before

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Hazardous weather outlook, Oct 25, 10:40 AM MDT, 4 hours 22 minutes before

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</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.
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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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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 25, 4:01 AM MDT	Red Flag Warning	BOU	Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert	14 hr

Nearby

Winter Weather Advisories in Colorado, 2021 Every winter weather advisory 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; radar from the NEXRAD Level II archive.