Alert archive / Hawaii / Winter Weather Advisories in 2021

Winter Weather Advisory 9, NWS Honolulu, HI

March 12, 2021Hawaii County, Hawaii

NWS Honolulu, HI issued this winter weather advisory at Mar 12, 2021, 3:12 PM HST for Hawaii County, Hawaii. It took effect at Mar 13, 2021, 3:27 AM HST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Mar 12, 2021, 3:12 PM HST (01:12 UTC)
In effect from
Mar 13, 2021, 3:27 AM HST
Expired
Mar 14, 2021, 3:32 PM HST
In force
36 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 01:14 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 Mar 12, 12:33 PM HST, 2 hours 39 minutes earlier.

Area forecast discussion, Mar 12, 12:33 PM HST, 2 hours 39 minutes before
<!doctype html>
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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.
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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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    </section>
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  <script src="index.js"></script>
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In the hours before

Local storm report, Mar 12, 1:59 PM HST, 1 hour 13 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.

IssuedProductOfficeCountiesLasted
Mar 12, 3:13 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Mar 12, 4:08 PM HSTFlash Flood WarningHFOHonolulu3 hr
Mar 12, 4:16 PM HSTHigh Surf AdvisoryHFOHonolulu, Kauai, Kalawao3 days
Mar 12, 5:46 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Mar 12, 8:36 PM HSTFlash Flood WarningHFOKalawao18 hr
Mar 12, 10:59 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Mar 12, 11:01 PM HSTAreal Flood AdvisoryHFOKalawao6 hr
Mar 13, 3:23 AM HSTAreal Flood AdvisoryHFOKalawao119 min
Mar 13, 3:27 AM HSTWind AdvisoryHFOKauai12 hr
Mar 13, 4:05 AM HSTAreal Flood AdvisoryHFOKauai2 hr
Mar 13, 4:43 AM HSTAreal Flood AdvisoryHFOHawaii6 hr
Mar 13, 5:22 AM HSTFlash Flood WarningHFOKalawao2 hr
Mar 13, 5:38 AM HSTSpecial Marine WarningHFO112 min
Mar 13, 6:03 AM HSTSpecial Weather StatementHFOHawaii87 min
Mar 13, 6:22 AM HSTFlash Flood WarningHFOKauai2 hr
Mar 13, 7:28 AM HSTSpecial Marine WarningHFO2 hr
Mar 13, 9:19 AM HSTSpecial Marine WarningHFO116 min
Mar 13, 9:24 AM HSTSpecial Marine WarningHFO111 min
Mar 13, 10:31 AM HSTAreal Flood AdvisoryHFOHawaii7 hr
Mar 13, 11:07 AM HSTSpecial Marine WarningHFO113 min
Mar 13, 11:09 AM HSTSpecial Marine WarningHFO2 hr
Mar 13, 11:19 AM HSTSpecial Marine WarningHFO116 min
Mar 13, 12:38 PM HSTAreal Flood AdvisoryHFOKauai15 hr
Mar 13, 12:47 PM HSTSpecial Marine WarningHFO118 min
Mar 13, 12:47 PM HSTSpecial Marine WarningHFO108 min

Nearby

Winter Weather Advisories in Hawaii, 2021Every 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.