Alert archive / California / Frost Advisories in 2015

Frost Advisory 25, NWS Los Angeles, CA

December 28, 2015Los Angeles County, California

NWS Los Angeles, CA issued this frost advisory at Dec 28, 2015, 2:34 PM PST for Los Angeles County, California. It took effect at Dec 29, 2015, 12:00 AM PST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Dec 28, 2015, 2:34 PM PST (22:34 UTC)
In effect from: Dec 29, 2015, 12:00 AM PST
Expired: Dec 29, 2015, 8:28 AM PST
In force: 8 hr
Issued by: NWS Los Angeles, CA

County Los Angeles County, CA

The radar

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 22:37 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 frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this frost advisory went out at Dec 28, 1:45 PM PST, 49 minutes earlier.

Area forecast discussion, Dec 28, 1:45 PM PST, 49 minutes before

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Hazardous weather outlook, Dec 28, 6:00 AM PST, 8 hours 34 minutes before

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</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.
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        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 Los Angeles, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 27, 8:14 PM PST	Gale Watch	LOX		7 hr
Dec 27, 8:14 PM PST	Small Craft Advisory	LOX		55 hr
Dec 28, 3:24 AM PST	Gale Warning	LOX		11 hr
Dec 28, 5:18 AM PST	Wind Advisory	LOX	Los Angeles	27 hr
Dec 28, 2:34 PM PST	Freeze Warning	LOX		18 hr

Nearby

Frost Advisories in California, 2015 Every frost advisory in 2015

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.