Alert archive / Colorado / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 114, NWS Denver/Boulder, CO

July 4, 2009Douglas County, Elbert County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 4, 2009, 5:24 PM MDT for Douglas County, Elbert County, Colorado. It was in force for 24 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: Jul 4, 2009, 5:24 PM MDT (23:24 UTC)
Expired: Jul 4, 2009, 5:48 PM MDT
In force: 24 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon

Counties Douglas County, CO, Elbert County, CO

The radar

The Denver radar (KFTG), 53 km from the middle of the area, began a volume at 23:26 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 Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 4, 3:00 PM MDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jul 4, 3:00 PM MDT, 2 hours 24 minutes before

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Hazardous weather outlook, Jul 4, 10:38 AM MDT, 6 hours 46 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 Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 6:16 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	44 min
Jul 3, 7:08 PM MDT	Special Weather Statement	BOU	Lincoln	52 min
Jul 3, 9:04 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Weld	29 min
Jul 3, 9:45 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Washington	45 min
Jul 3, 10:12 PM MDT	Flash Flood Warning	BOU	Morgan	5 hr
Jul 3, 10:26 PM MDT	Severe Thunderstorm Warning	BOU	Washington	33 min
Jul 4, 3:43 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Weld	62 min
Jul 4, 5:11 PM MDT	Areal Flood Advisory	BOU	Douglas	94 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2009 Every severe thunderstorm warning in 2009

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.