Alert archive / Colorado / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 253, NWS Denver/Boulder, CO

July 5, 2023Jefferson County, Park County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 5, 2023, 1:01 PM MDT for Jefferson County, Park County, Colorado. It was in force for 29 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 5, 2023, 1:01 PM MDT (19:01 UTC)
Expired
Jul 5, 2023, 1:30 PM MDT
In force
29 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Jefferson County, CO, Park County, CO

The radar

The Denver radar (KFTG), 94 km from the middle of the area, began a volume at 19:03 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 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 5, 12:04 PM MDT, 57 minutes earlier.

Area forecast discussion, Jul 5, 12:04 PM MDT, 57 minutes before
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Hazardous weather outlook, Jul 5, 11:30 AM MDT, 1 hour 31 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.
      </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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In the hours before

Special weather statement, Jul 5, 12:53 PM MDT, 8 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.
      </p>
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 6:02 PM MDTSevere Thunderstorm WarningBOULarimer28 min
Jul 4, 6:04 PM MDTSevere Thunderstorm WarningBOUWeld26 min
Jul 4, 6:21 PM MDTSpecial Weather StatementBOUGrand39 min
Jul 4, 6:26 PM MDTSevere Thunderstorm Warning Considerable damage threatBOUWeld34 min
Jul 4, 6:36 PM MDTAreal Flood AdvisoryBOUGrand3 hr
Jul 4, 6:38 PM MDTSpecial Weather StatementBOUPark37 min
Jul 4, 6:54 PM MDTSpecial Weather StatementBOUBoulder36 min
Jul 4, 7:50 PM MDTSpecial Weather StatementBOUBroomfield, Denver25 min
Jul 4, 8:03 PM MDTAreal Flood AdvisoryBOUAdams, Boulder, Broomfield, Denver, Jefferson87 min
Jul 4, 8:15 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Denver16 min
Jul 4, 8:25 PM MDTSevere Thunderstorm Warning Considerable damage threatBOUAdams, Arapahoe35 min
Jul 4, 8:44 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert31 min
Jul 4, 9:15 PM MDTSpecial Weather StatementBOUElbert30 min
Jul 4, 9:46 PM MDTSpecial Weather StatementBOULincoln44 min
Jul 4, 10:11 PM MDTSpecial Weather StatementBOUDenver, Jefferson49 min
Jul 4, 10:18 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln42 min
Jul 4, 10:48 PM MDTSevere Thunderstorm WarningBOULincoln42 min
Jul 4, 11:27 PM MDTSpecial Weather StatementBOULincoln33 min
Jul 4, 11:52 PM MDTSpecial Weather StatementBOUDenver38 min
Jul 5, 12:53 PM MDTSpecial Weather StatementBOUPark37 min
Jul 5, 1:59 PM MDTSpecial Weather StatementBOUJefferson31 min
Jul 5, 2:18 PM MDTSevere Thunderstorm WarningBOUDouglas27 min
Jul 5, 2:52 PM MDTSpecial Weather StatementBOUDouglas23 min
Jul 5, 3:45 PM MDTSpecial Weather StatementBOUGrand30 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2023Every severe thunderstorm warning in 2023

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.