Alert archive / California / Areal Flood Warnings in 2024

Areal Flood Warning 3, NWS Eureka, CA

November 22, 2024Mendocino County, California

NWS Eureka, CA issued this areal flood warning at Nov 22, 2024, 7:58 PM PST for Mendocino County, California. It was in force for 9 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: Nov 22, 2024, 7:58 PM PST (03:58 UTC)
Expired: Nov 23, 2024, 4:46 AM PST
In force: 9 hr
Issued by: NWS Eureka, CA
Area: Storm-based polygon
Flood severity: None

County Mendocino County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 139 km from the middle of the area, began a volume at 03:57 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 nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 4.0 hours before the alert went out and 449 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1724 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Nov 22, 2:47 PM PST, 5 hours 11 minutes earlier.

Area forecast discussion, Nov 22, 2:47 PM PST, 5 hours 11 minutes before

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In the hours before

Local storm report, Nov 22, 2:06 PM PST, 5 hours 52 minutes before

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Local storm report, Nov 22, 2:07 PM PST, 5 hours 51 minutes before

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Local storm report, Nov 22, 2:08 PM PST, 5 hours 50 minutes before

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Local storm report, Nov 22, 2:09 PM PST, 5 hours 49 minutes before

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Local storm report, Nov 22, 2:11 PM PST, 5 hours 47 minutes before

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      <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.
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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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Local storm report, Nov 22, 6:17 PM PST, 1 hour 41 minutes before

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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>
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</body>
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The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 23, 1:18 AM PST	Special Weather Statement	EKA	Humboldt	12 min
Nov 23, 3:05 AM PST	Special Weather Statement	EKA	Humboldt	10 min
Nov 23, 8:51 AM PST	Gale Warning	EKA		34 hr
Nov 23, 1:02 PM PST	Winter Storm Warning	EKA		51 hr
Nov 23, 1:07 PM PST	Wind Advisory	EKA	Del Norte, Humboldt	30 hr

Nearby

Areal Flood Warnings in California, 2024 Every areal flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.