Alert archive / California / Flash Flood Watches in 2014

Flash Flood Watch 1, NWS Sacramento, CA

July 20, 2014Tuolumne County, California

NWS Sacramento, CA issued this flash flood watch at Jul 20, 2014, 12:00 PM PDT for Tuolumne County, California. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jul 20, 2014, 12:00 PM PDT (19:00 UTC)
Expired: Jul 20, 2014, 8:00 PM PDT
In force: 8 hr
Issued by: NWS Sacramento, CA
Flood severity: None

County Tuolumne County, CA

The radar

The Sacramento radar (KDAX), 159 km from the middle of the area, began a volume at 19:01 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 Sacramento, CA wrote its last area forecast discussion before this flash flood watch went out at Jul 20, 9:36 AM PDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jul 20, 9:36 AM PDT, 2 hours 24 minutes before

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In the hours before

Local storm report, Jul 20, 8:24 AM PDT, 3 hours 36 minutes before

<!doctype html>
<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>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Sacramento, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 19, 7:44 PM PDT	Severe Thunderstorm Warning	STO	Plumas	31 min
Jul 20, 1:07 PM PDT	Flash Flood Warning	STO	Tuolumne	6 hr

Nearby

Flash Flood Watches in California, 2014 Every flash flood watch in 2014

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.