Alert archive / Hawaii / Winter Weather Advisories in 2021

Winter Weather Advisory 1, NWS Honolulu, HI

January 18, 2021Hawaii County, Hawaii

NWS Honolulu, HI issued this winter weather advisory at Jan 18, 2021, 3:49 AM HST for Hawaii County, Hawaii. It took effect at Jan 18, 2021, 12:00 PM HST. It was in force for 28 hr.

The area

The counties it named.

The facts

Issued: Jan 18, 2021, 3:49 AM HST (13:49 UTC)
In effect from: Jan 18, 2021, 12:00 PM HST
Expired: Jan 19, 2021, 3:38 PM HST
In force: 28 hr
Issued by: NWS Honolulu, HI

County Hawaii County, HI

The radar

The South Shore radar (PHWA), 57 km from the middle of the area, began a volume at 13:52 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 winter weather advisory 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 winter weather advisory went out at Jan 17, 9:08 PM HST, 6 hours 41 minutes earlier.

Area forecast discussion, Jan 17, 9:08 PM HST, 6 hours 41 minutes before

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In the hours before

Local storm report, Jan 17, 9:53 PM HST, 5 hours 56 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
Jan 17, 3:37 PM HST	Wind Advisory	HFO	Honolulu, Kauai, Kalawao	48 hr
Jan 17, 3:45 PM HST	Gale Warning	HFO		36 hr
Jan 17, 3:45 PM HST	Small Craft Advisory	HFO		24 hr
Jan 17, 4:37 PM HST	Areal Flood Advisory	HFO	Kauai	3 hr
Jan 17, 7:07 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 17, 7:17 PM HST	Areal Flood Advisory	HFO	Kauai	2 hr
Jan 18, 12:06 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 12:51 AM HST	Flash Flood Warning	HFO	Kalawao	6 hr
Jan 18, 3:03 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 5:16 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 8:53 AM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 18, 10:17 AM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Jan 18, 10:50 AM HST	Areal Flood Advisory	HFO	Kalawao	6 hr
Jan 18, 11:50 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr

Nearby

Winter Weather Advisories in Hawaii, 2021 Every winter weather advisory in 2021

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.