Alert archive / Colorado / Flash Flood Watches in 2010

Flash Flood Watch 4, NWS Denver/Boulder, CO

August 1, 201010 counties in Colorado

NWS Denver/Boulder, CO issued this flash flood watch at Aug 1, 2010, 4:36 AM MDT for 10 counties in Colorado. It took effect at Aug 1, 2010, 12:00 PM MDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Aug 1, 2010, 4:36 AM MDT (10:36 UTC)
In effect from
Aug 1, 2010, 12:00 PM MDT
Expired
Aug 1, 2010, 9:00 PM MDT
In force
9 hr
Issued by
NWS Denver/Boulder, CO
Flood severity
None

Counties Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO

The radar

The Denver radar (KFTG), 94 km from the middle of the area, began a volume at 10:36 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 flash flood watch 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 flash flood watch went out at Aug 1, 3:54 AM MDT, 42 minutes earlier.

Area forecast discussion, Aug 1, 3:54 AM MDT, 42 minutes before
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Hazardous weather outlook, Jul 31, 10:31 AM MDT, 18 hours 5 minutes before
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  <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.

IssuedProductOfficeCountiesLasted
Aug 1, 2:00 PM MDTAreal Flood AdvisoryBOULarimer90 min
Aug 1, 2:50 PM MDTAreal Flood AdvisoryBOUWeld85 min
Aug 1, 2:59 PM MDTAreal Flood AdvisoryBOUJefferson91 min
Aug 1, 3:05 PM MDTSpecial Weather StatementBOUWeld25 min
Aug 1, 3:13 PM MDTFlash Flood WarningBOUJefferson2 hr
Aug 1, 3:25 PM MDTSpecial Weather StatementBOUWeld35 min
Aug 1, 3:28 PM MDTAreal Flood AdvisoryBOUWeld92 min
Aug 1, 4:51 PM MDTAreal Flood AdvisoryBOUMorgan, Weld84 min
Aug 1, 4:53 PM MDTSpecial Weather StatementBOUMorgan37 min

Nearby

Flash Flood Watches in Colorado, 2010Every flash flood watch in 2010

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.