Alert archive / California / Areal Flood Warnings in 2025

Areal Flood Warning 2, NWS Eureka, CA

December 21, 2025Humboldt County, California

NWS Eureka, CA issued this areal flood warning at Dec 21, 2025, 6:10 AM PST for Humboldt County, California. It was in force for 17 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: Dec 21, 2025, 6:10 AM PST (14:10 UTC)
Expired: Dec 21, 2025, 11:00 PM PST
In force: 17 hr
Issued by: NWS Eureka, CA
Area: Storm-based polygon
Flood severity: None

County Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 39 km from the middle of the area, began a volume at 14:13 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 Eureka, CA wrote its last area forecast discussion before this areal flood warning went out at Dec 21, 12:42 AM PST, 5 hours 28 minutes earlier.

Area forecast discussion, Dec 21, 12:42 AM PST, 5 hours 28 minutes before

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      <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.
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      <p id="message2">
        Please try again in a few minutes.
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      <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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In the hours before

Local storm report, Dec 21, 12:20 AM PST, 5 hours 50 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>
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Local storm report, Dec 21, 12:22 AM PST, 5 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>

Local storm report, Dec 21, 4:49 AM PST, 1 hour 21 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 Eureka, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 20, 7:55 PM PST	Wind Advisory	EKA	Humboldt, Lake, Mendocino	18 hr
Dec 20, 7:58 PM PST	Gale Warning	EKA		17 hr
Dec 21, 12:21 AM PST	River Flood Watch	EKA	Mendocino	9 hr
Dec 21, 2:29 AM PST	Areal Flood Advisory	EKA	Humboldt, Mendocino, Trinity	4 hr
Dec 21, 4:13 AM PST	Areal Flood Advisory	EKA	Humboldt, Trinity	6 hr
Dec 21, 5:53 AM PST	Small Craft Advisory	EKA		4 hr
Dec 21, 6:34 AM PST	River Flood Watch	EKA	Humboldt	2 hr
Dec 21, 6:43 AM PST	Areal Flood Advisory	EKA	Del Norte, Humboldt, Mendocino, Trinity	4 hr
Dec 21, 8:52 AM PST	River Flood Warning	EKA	Mendocino	26 hr
Dec 21, 9:02 AM PST	River Flood Warning	EKA	Humboldt	32 hr
Dec 21, 9:05 AM PST	River Flood Warning	EKA	Humboldt	18 hr
Dec 21, 10:01 AM PST	Small Craft Advisory	EKA		119 min
Dec 21, 10:37 AM PST	Areal Flood Warning	EKA	Humboldt, Trinity	15 hr
Dec 21, 10:51 AM PST	Flash Flood Warning	EKA	Humboldt, Trinity	62 min
Dec 21, 11:05 AM PST	Areal Flood Warning	EKA	Lake, Mendocino	9 hr
Dec 21, 11:07 AM PST	Areal Flood Advisory	EKA	Lake	5 hr
Dec 21, 12:03 PM PST	Areal Flood Warning	EKA	Humboldt, Trinity	7 hr
Dec 21, 2:25 PM PST	River Flood Warning	EKA	Humboldt	6 hr
Dec 21, 3:50 PM PST	Areal Flood Warning	EKA	Lake	7 hr

Nearby

Areal Flood Warnings in California, 2025 Every areal 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.