Alert archive / Wyoming / Frost Advisories in 2018

Frost Advisory 1, NWS Cheyenne, WY

September 20, 2018Converse County, Wyoming

NWS Cheyenne, WY issued this frost advisory at Sep 20, 2018, 2:46 PM MDT for Converse County, Wyoming. It took effect at Sep 21, 2018, 12:00 AM MDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Sep 20, 2018, 2:46 PM MDT (20:46 UTC)
In effect from: Sep 21, 2018, 12:00 AM MDT
Expired: Sep 21, 2018, 8:00 AM MDT
In force: 8 hr
Issued by: NWS Cheyenne, WY

County Converse County, WY

The radar

The Cheyenne radar (KCYS), 210 km from the middle of the area, began a volume at 20:47 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 Cheyenne, WY wrote its last area forecast discussion before this frost advisory went out at Sep 20, 11:26 AM MDT, 3 hours 20 minutes earlier.

Area forecast discussion, Sep 20, 11:26 AM MDT, 3 hours 20 minutes before

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Hazardous weather outlook, Sep 20, 3:38 AM MDT, 11 hours 8 minutes before

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In the hours before

Special weather statement, Sep 20, 12:46 PM MDT, 2 hours before

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Special weather statement, Sep 20, 2:06 PM MDT, 40 minutes before

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<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>
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The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 20, 2:46 PM MDT	Freeze Warning	CYS	Albany, Carbon	17 hr
Sep 20, 12:46 PM MDT	Special Weather Statement	CYS	Banner, Kimball	89 min
Sep 20, 2:06 PM MDT	Special Weather Statement	CYS	Cheyenne	39 min
Sep 20, 4:05 PM MDT	Special Weather Statement	CYS	Scotts Bluff	40 min

Nearby

Frost Advisories in Wyoming, 2018 Every frost advisory 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.