Alert archive / California / Flash Flood Watches in 2019

Flash Flood Watch 5, NWS San Francisco Bay Area, CA

November 26, 2019Marin County, Napa County, Sonoma County, California

NWS San Francisco Bay Area, CA issued this flash flood watch at Nov 26, 2019, 3:41 AM PST for Marin County, Napa County, Sonoma County, California. It took effect at Nov 26, 2019, 2:00 PM PST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Nov 26, 2019, 3:41 AM PST (11:41 UTC)
In effect from: Nov 26, 2019, 2:00 PM PST
Expired: Nov 26, 2019, 10:00 PM PST
In force: 8 hr
Issued by: NWS San Francisco Bay Area, CA
Flood severity: None

Counties Marin County, CA, Napa County, CA, Sonoma County, CA

The radar

The Sacramento radar (KDAX), 88 km from the middle of the area, began a volume at 11:38 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 San Francisco Bay Area, CA wrote its last area forecast discussion before this flash flood watch went out at Nov 25, 1:53 PM PST, 13 hours 48 minutes earlier.

Area forecast discussion, Nov 25, 1:53 PM PST, 13 hours 48 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 San Francisco Bay Area, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 25, 9:03 PM PST	Small Craft Advisory	MTR		19 hr
Nov 26, 3:08 AM PST	Small Craft Advisory for Rough Bar	MTR		20 hr
Nov 26, 3:08 AM PST	Small Craft Advisory	MTR		66 hr
Nov 26, 3:43 AM PST	Winter Weather Advisory	MTR	Monterey	54 hr

Nearby

Flash Flood Watches in California, 2019 Every flash flood watch in 2019

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.