Alert archive / Washington / River Flood Warnings in 2025

River Flood Warning 63, NWS Seattle, WA

December 15, 2025Snohomish County, Washington

NWS Seattle, WA issued this river flood warning at Dec 15, 2025, 2:42 PM PST for Snohomish County, Washington. It took effect at Dec 15, 2025, 3:14 PM PST. It was in force for 49 hr.

The area

The counties it named.

The facts

Issued: Dec 15, 2025, 2:42 PM PST (22:42 UTC)
In effect from: Dec 15, 2025, 3:14 PM PST
Expired: Dec 17, 2025, 4:27 PM PST
In force: 49 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Moderate

County Snohomish County, WA

The radar

The Seattle radar (KATX), 60 km from the middle of the area, began a volume at 22:42 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 Skykomish River near Gold Bar (GLBW1). The gauge peaked at 17.97 ft at Dec 17, 2025, 5:00 AM PST.

Action stage: 12.2 ft
Minor stage: 15 ft
Moderate stage: 17 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12134500, 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 Dec 15, 10:16 AM PST, 4 hours 26 minutes earlier.

Area forecast discussion, Dec 15, 10:16 AM PST, 4 hours 26 minutes before

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In the hours before

Local storm report, Dec 15, 1:14 PM PST, 1 hour 28 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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Local storm report, Dec 15, 1:19 PM PST, 1 hour 23 minutes before

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<head>
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<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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Local storm report, Dec 15, 1:26 PM PST, 1 hour 16 minutes before

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<head>
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  <title>Service Notice</title>
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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>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Dec 15, 1:55 PM PST, 47 minutes before

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<head>
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  <title>Service Notice</title>
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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>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Dec 15, 2:21 PM PST, 21 minutes before

<!doctype html>
<html lang="en">
<head>
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  <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, Dec 15, 2:23 PM PST, 19 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
Dec 15, 12:45 AM PST	High Wind Watch	SEW	Clallam, Grays Harbor, Island, Jefferson, King, Kitsap and 8 more	13 hr
Dec 15, 1:03 AM PST	River Flood Warning	SEW	Skagit	70 hr
Dec 15, 1:27 AM PST	Winter Storm Watch	SEW	Clallam, Grays Harbor, Jefferson, King, Lewis, Mason and 4 more	12 hr
Dec 15, 3:01 AM PST	Gale Watch	SEW		24 hr
Dec 15, 3:01 AM PST	Small Craft Advisory	SEW		5 days
Dec 15, 5:34 AM PST	River Flood Warning	SEW	Mason	9 days
Dec 15, 8:04 AM PST	Areal Flood Advisory	SEW	Grays Harbor, Mason	3 hr
Dec 15, 11:51 AM PST	Flash Flood Warning Considerable damage threat	SEW	King	5 hr
Dec 15, 1:55 PM PST	Winter Storm Warning	SEW	Clallam, Grays Harbor, Jefferson, King, Lewis, Mason and 4 more	23 hr
Dec 15, 1:55 PM PST	Winter Weather Advisory	SEW	Clallam, Grays Harbor, Jefferson, King, Lewis, Mason and 1 more	13 hr
Dec 15, 2:06 PM PST	Wind Advisory	SEW	Clallam, Grays Harbor, Island, Jefferson, King, Kitsap and 8 more	13 hr

Nearby

River Flood Warnings in Washington, 2025 Every river flood warning in 2025

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.