Alert archive / Washington / River Flood Warnings in 2022

River Flood Warning 66, NWS Seattle, WA

November 4, 2022King County, Washington

NWS Seattle, WA issued this river flood warning at Nov 4, 2022, 3:14 PM PDT for King County, Washington. It took effect at Nov 4, 2022, 7:47 PM PDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued: Nov 4, 2022, 3:14 PM PDT (22:14 UTC)
In effect from: Nov 4, 2022, 7:47 PM PDT
Expired: Nov 6, 2022, 3:57 AM PST
In force: 33 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Moderate

County King County, WA

The radar

The Seattle radar (KATX), 92 km from the middle of the area, began a volume at 22:15 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.

The river

Written for the forecast point Snoqualmie River near Carnation (CRNW1). The gauge peaked at 56.90 ft at Nov 5, 2022, 1:00 PM PDT.

Action stage: 50.7 ft
Minor stage: 54 ft
Moderate stage: 56 ft
Major stage: 58 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12149000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Nov 4, 2:56 PM PDT, 18 minutes earlier.

Area forecast discussion, Nov 4, 2:56 PM PDT, 18 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.
      </p>
    </section>
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  <script src="index.js"></script>
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In the hours before

Local storm report, Nov 4, 9:42 AM PDT, 5 hours 32 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, Nov 4, 2:54 PM PDT, 20 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 Seattle, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 4, 3:04 AM PDT	Storm Warning	SEW		26 hr
Nov 4, 3:16 AM PDT	High Wind Warning	SEW		23 hr
Nov 4, 3:16 AM PDT	Wind Advisory	SEW		20 hr
Nov 4, 10:18 AM PDT	River Flood Warning	SEW	Pierce	26 hr
Nov 4, 10:21 AM PDT	River Flood Warning	SEW	King	30 hr
Nov 4, 10:24 AM PDT	River Flood Warning	SEW	King	16 hr
Nov 4, 10:27 AM PDT	River Flood Warning	SEW	Snohomish	24 hr
Nov 4, 10:27 AM PDT	River Flood Warning	SEW	Snohomish	25 hr
Nov 4, 10:27 AM PDT	River Flood Warning	SEW	Mason	30 hr
Nov 4, 12:56 PM PDT	River Flood Warning	SEW	Pierce	16 hr
Nov 4, 1:43 PM PDT	River Flood Warning	SEW	Snohomish	15 hr
Nov 4, 2:59 PM PDT	Gale Warning	SEW		9 hr
Nov 4, 3:05 PM PDT	Winter Weather Advisory	SEW		61 hr
Nov 4, 4:17 PM PDT	River Flood Warning	SEW	Lewis, Pierce	18 hr

Nearby

River Flood Warnings in Washington, 2022 Every river flood warning in 2022

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; the gauge from the NWS water service and the USGS.