Alert archive / Hawaii / Flash Flood Warnings in 2023

Flash Flood Warning 11, NWS Honolulu, HI

February 17, 2023Hawaii County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Feb 17, 2023, 10:30 AM HST for Hawaii County, Hawaii. It was in force for 18 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: Feb 17, 2023, 10:30 AM HST (20:30 UTC)
Expired: Feb 18, 2023, 4:00 AM HST
In force: 18 hr
Issued by: NWS Honolulu, HI
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Hawaii County, HI

The radar

The South Shore radar (PHWA), 57 km from the middle of the area, began a volume at 20:32 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Honolulu, HI wrote its last area forecast discussion before this flash flood warning went out at Feb 17, 10:00 AM HST, 30 minutes earlier.

Area forecast discussion, Feb 17, 10:00 AM HST, 30 minutes before

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In the hours before

Local storm report, Feb 17, 9:39 AM HST, 51 minutes before

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<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.
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The office that day

Everything else NWS Honolulu, HI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 16, 3:35 PM HST	High Surf Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	48 hr
Feb 17, 12:07 AM HST	Areal Flood Advisory	HFO	Hawaii	10 hr
Feb 17, 4:56 AM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Feb 17, 6:58 AM HST	Areal Flood Advisory	HFO	Kalawao	5 hr
Feb 17, 9:18 AM HST	Flash Flood Warning	HFO	Hawaii	3 hr
Feb 17, 1:23 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr

Nearby

Flash Flood Warnings in Hawaii, 2023 Every flash flood warning in 2023

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.