Alert archive / Washington / Areal Flood Advisories in 2021

Areal Flood Advisory 2, NWS Seattle, WA

January 2, 20215 counties in Washington

NWS Seattle, WA issued this areal flood advisory at Jan 2, 2021, 11:41 PM PST for 5 counties in Washington. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Jan 2, 2021, 11:41 PM PST (07:41 UTC)
Expired: Jan 3, 2021, 1:45 AM PST
In force: 2 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon

Counties King County, WA, Lewis County, WA, Pierce County, WA, Snohomish County, WA, Thurston County, WA

The radar

The Seattle radar (KATX), 111 km from the middle of the area, began a volume at 07:45 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 advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Seattle, WA wrote its last area forecast discussion before this areal flood advisory went out at Jan 2, 7:40 PM PST, 4 hours 1 minute earlier.

Area forecast discussion, Jan 2, 7:40 PM PST, 4 hours 1 minute before

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In the hours before

Local storm report, Jan 2, 10:45 PM PST, 56 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>

Local storm report, Jan 2, 10:53 PM PST, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1053 PM PST SAT JAN 2 2021

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

0843 PM     DEBRIS FLOW      1.6 SE SKOKOMISH        47.32N 123.13W
01/02/2021                   MASON              WA   LAW ENFORCEMENT

0703 PM     DEBRIS FLOW      BRINNON                 47.68N 122.90W
01/02/2021                   JEFFERSON          WA   LAW ENFORCEMENT

&&

The office that day

Everything else NWS Seattle, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 2, 5:17 PM PST	River Flood Warning	SEW	Clallam	11 hr
Jan 2, 8:00 PM PST	River Flood Warning	SEW	Grays Harbor	26 hr
Jan 2, 8:48 PM PST	Areal Flood Warning	SEW	Grays Harbor, Island, Jefferson, King, Kitsap, Mason and 3 more	56 min
Jan 2, 9:40 PM PST	Areal Flood Advisory	SEW	Island, King, Kitsap, Mason, Pierce, Snohomish	2 hr
Jan 3, 12:42 AM PST	River Flood Warning	SEW	Lewis	5 hr
Jan 3, 3:06 AM PST	Gale Watch	SEW		11 hr
Jan 3, 3:06 AM PST	Small Craft Advisory	SEW		51 hr
Jan 3, 3:21 AM PST	River Flood Warning	SEW	Lewis	18 hr
Jan 3, 4:31 AM PST	River Flood Warning	SEW	Thurston	35 hr
Jan 3, 6:16 AM PST	River Flood Warning	SEW	Grays Harbor, Thurston	4 days
Jan 3, 6:16 AM PST	River Flood Warning	SEW	Grays Harbor	6 days
Jan 3, 6:18 AM PST	Winter Storm Watch	SEW		6 hr
Jan 3, 12:37 PM PST	Winter Storm Warning	SEW		37 hr
Jan 3, 2:20 PM PST	Gale Warning	SEW		20 hr
Jan 3, 2:20 PM PST	Small Craft Advisory	SEW		9 days
Jan 3, 2:27 PM PST	Wind Advisory	SEW		14 hr

Nearby

Areal Flood Advisories in Washington, 2021 Every areal flood advisory in 2021

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.