Alert archive / California / Areal Flood Warnings in 2019

Areal Flood Warning 13, NWS San Francisco Bay Area, CA

February 26, 2019Sonoma County, California

NWS San Francisco Bay Area, CA issued this areal flood warning at Feb 26, 2019, 5:04 PM PST for Sonoma County, California. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Feb 26, 2019, 5:04 PM PST (01:04 UTC)
Expired: Feb 26, 2019, 8:00 PM PST
In force: 3 hr
Issued by: NWS San Francisco Bay Area, CA
Area: Storm-based polygon
Flood severity: None

County Sonoma County, CA

The radar

The Sacramento radar (KDAX), 108 km from the middle of the area, began a volume at 01:06 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 areal flood warning 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 areal flood warning went out at Feb 26, 4:08 PM PST, 56 minutes earlier.

Area forecast discussion, Feb 26, 4:08 PM PST, 56 minutes before

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In the hours before

Local storm report, Feb 26, 3:51 PM PST, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
351 PM PST TUE FEB 26 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0337 PM     DEBRIS FLOW      1 SSW DEER PARK         38.52N 122.47W
02/26/2019                   NAPA               CA   LAW ENFORCEMENT

            ROCKS AND MUD ARE BLOCKING LANE ONE ON
            SILVERADO TRAIL.

&&

PALMER

Local storm report, Feb 26, 3:54 PM PST, 1 hour 10 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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Local storm report, Feb 26, 3:58 PM PST, 1 hour 6 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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Local storm report, Feb 26, 4:00 PM PST, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
400 PM PST TUE FEB 26 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1233 PM     FLOOD            5 NNW GLEN ELLEN        38.43N 122.56W
02/26/2019                   SONOMA             CA   LAW ENFORCEMENT

            WESTBOUND SR 12 AT HOFF ROAD ARE FLOODED.

&&

PALMER

Local storm report, Feb 26, 4:03 PM PST, 1 hour 1 minute before

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<head>
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  <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
Feb 26, 4:08 PM PST	River Flood Warning	MTR	Monterey	21 days
Feb 26, 4:32 PM PST	Areal Flood Warning	MTR	Marin	12 hr
Feb 26, 7:51 PM PST	Areal Flood Warning	MTR	Sonoma	21 hr
Feb 26, 9:37 PM PST	Areal Flood Warning	MTR	Napa	14 hr
Feb 27, 2:34 AM PST	Small Craft Advisory	MTR		4 hr
Feb 27, 1:29 PM PST	Small Craft Advisory	MTR		6 hr

Nearby

Areal Flood Warnings in California, 2019 Every areal flood warning 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.