Alert archive / Wyoming / Winter Storm Warnings in 2018

Winter Storm Warning 11, NWS Riverton, WY

May 10, 20188 counties in Wyoming

NWS Riverton, WY issued this winter storm warning at May 10, 2018, 8:05 PM MDT for 8 counties in Wyoming. It took effect at May 11, 2018, 11:00 AM MDT. It was in force for 42 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 10, 2018, 8:05 PM MDT (02:05 UTC)
In effect from: May 11, 2018, 11:00 AM MDT
Expired: May 13, 2018, 5:00 AM MDT
In force: 42 hr
Issued by: NWS Riverton, WY

Counties Big Horn County, WY, Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Washakie County, WY

The radar

The Riverton/Lander radar (KRIW), 72 km from the middle of the area, began a volume at 02:04 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Riverton, WY wrote its last area forecast discussion before this winter storm warning went out at May 10, 5:40 PM MDT, 2 hours 25 minutes earlier.

Area forecast discussion, May 10, 5:40 PM MDT, 2 hours 25 minutes before

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Hazardous weather outlook, May 10, 1:46 PM MDT, 6 hours 19 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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The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 8:05 PM MDT	Winter Weather Advisory	RIW	Fremont, Lincoln, Park, Sublette, Teton	53 hr
May 10, 8:21 PM MDT	Special Weather Statement	RIW	Lincoln	39 min
May 10, 10:16 PM MDT	Special Weather Statement	RIW	Fremont	59 min
May 10, 11:34 PM MDT	Special Weather Statement	RIW	Fremont	41 min
May 11, 1:39 PM MDT	Special Weather Statement	RIW	Sweetwater	36 min
May 11, 2:15 PM MDT	Special Weather Statement	RIW	Sweetwater	30 min
May 11, 2:37 PM MDT	Special Weather Statement	RIW	Sweetwater	38 min
May 11, 3:36 PM MDT	Flood Watch	RIW	Fremont	37 hr
May 11, 3:39 PM MDT	Special Weather Statement	RIW		36 min
May 11, 4:24 PM MDT	Special Weather Statement	RIW		36 min
May 11, 4:34 PM MDT	Severe Thunderstorm Warning	RIW	Sweetwater	41 min

Nearby

Winter Storm Warnings in Wyoming, 2018 Every winter storm warning 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.