Alert archive / Oregon / Frost Advisories in 2013

Frost Advisory 40, NWS Medford, OR

September 18, 2013Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California

NWS Medford, OR issued this frost advisory at Sep 18, 2013, 2:40 PM PDT for Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California. It took effect at Sep 19, 2013, 3:00 AM PDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Sep 18, 2013, 2:40 PM PDT (21:40 UTC)
In effect from: Sep 19, 2013, 3:00 AM PDT
Expired: Sep 19, 2013, 8:00 AM PDT
In force: 5 hr
Issued by: NWS Medford, OR

Counties Modoc County, CA, Siskiyou County, CA, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 115 km from the middle of the area, began a volume at 21:42 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 Medford, OR wrote its last area forecast discussion before this frost advisory went out at Sep 18, 9:01 AM PDT, 5 hours 39 minutes earlier.

Area forecast discussion, Sep 18, 9:01 AM PDT, 5 hours 39 minutes before

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In the hours before

Local storm report, Sep 18, 12:30 PM PDT, 2 hours 10 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 Medford, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 18, 2:40 PM PDT	Freeze Warning	MFR	Klamath, Lake	17 hr
Sep 18, 3:48 PM PDT	Fire Weather Watch	MFR	Klamath, Lake	22 hr

Nearby

Frost Advisories in Oregon, 2013 Frost Advisories in California, 2013 Every frost advisory in 2013

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.