Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 2, NWS Grand Junction, CO

May 17, 2026Rio Blanco County, Colorado

NWS Grand Junction, CO issued this severe thunderstorm warning at May 17, 2026, 12:30 PM MDT for Rio Blanco County, Colorado. It was in force for 30 min. 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 17, 2026, 12:30 PM MDT (18:30 UTC)
Expired: May 17, 2026, 1:00 PM MDT
In force: 30 min
Issued by: NWS Grand Junction, CO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Rio Blanco County, CO

The radar

The Grand Junction radar (KGJX), 102 km from the middle of the area, began a volume at 18:31 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Junction, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 11:53 AM MDT, 37 minutes earlier.

Area forecast discussion, May 17, 11:53 AM MDT, 37 minutes before

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In the hours before

Special weather statement, May 17, 12:13 PM MDT, 17 minutes before

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<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 Grand Junction, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 16, 8:44 PM MDT	Winter Weather Advisory	GJT	Moffat, Routt	45 hr
May 17, 11:50 AM MDT	Freeze Watch	GJT	Garfield, Moffat, Rio Blanco, Routt	10 hr
May 17, 12:13 PM MDT	Special Weather Statement	GJT	Rio Blanco	32 min
May 17, 12:59 PM MDT	Severe Thunderstorm Warning	GJT	Rio Blanco	31 min
May 17, 1:21 PM MDT	Tornado Warning	GJT	Moffat, Rio Blanco	39 min
May 17, 1:33 PM MDT	Severe Thunderstorm Warning	GJT	Moffat, Rio Blanco, Routt	27 min
May 17, 2:07 PM MDT	Severe Thunderstorm Warning	GJT	Moffat, Rio Blanco	23 min
May 17, 2:09 PM MDT	Special Weather Statement	GJT	Routt	36 min
May 17, 2:25 PM MDT	Special Weather Statement	GJT	Rio Blanco	35 min
May 17, 2:59 PM MDT	Special Weather Statement	GJT	Routt	31 min
May 17, 3:33 PM MDT	Special Weather Statement	GJT	Mesa	27 min
May 17, 5:21 PM MDT	Special Weather Statement	GJT	Eagle	24 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2026 Every severe thunderstorm warning in 2026

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.