Alert archive / Hawaii / Flash Flood Warnings in 2023

Flash Flood Warning 28, NWS Honolulu, HI

November 30, 2023Hawaii County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Nov 30, 2023, 5:28 AM HST for Hawaii County, Hawaii. It was in force for 3 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 30, 2023, 5:28 AM HST (15:28 UTC)
Expired: Nov 30, 2023, 8:15 AM HST
In force: 3 hr
Issued by: NWS Honolulu, HI
Area: Storm-based polygon
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 15:31 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 Nov 30, 3:43 AM HST, 1 hour 45 minutes earlier.

Area forecast discussion, Nov 30, 3:43 AM HST, 1 hour 45 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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In the hours before

Local storm report, Nov 30, 3:45 AM HST, 1 hour 43 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 30, 4:04 AM HST, 1 hour 24 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 Honolulu, HI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 29, 3:39 PM HST	Special Weather Statement	HFO	Kalawao	51 min
Nov 29, 4:57 PM HST	Special Weather Statement	HFO	Kalawao	63 min
Nov 29, 6:09 PM HST	Special Marine Warning	HFO		2 hr
Nov 29, 8:09 PM HST	Special Marine Warning	HFO		2 hr
Nov 29, 8:49 PM HST	Small Craft Advisory	HFO		42 hr
Nov 30, 12:54 AM HST	Areal Flood Advisory	HFO	Kalawao	70 min
Nov 30, 1:46 AM HST	Areal Flood Advisory	HFO	Hawaii	4 hr
Nov 30, 2:04 AM HST	Flash Flood Warning	HFO	Kalawao	5 hr
Nov 30, 6:37 AM HST	Flash Flood Warning Considerable damage threat	HFO	Kalawao	8 hr
Nov 30, 7:18 AM HST	Flash Flood Warning	HFO	Hawaii	6 hr
Nov 30, 10:25 AM HST	Areal Flood Advisory	HFO	Honolulu	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.