Alert archive / California / Freeze Warnings in 2022

Freeze Warning 7, NWS San Francisco Bay Area, CA

December 12, 2022Marin County, Napa County, Sonoma County, California

NWS San Francisco Bay Area, CA issued this freeze warning at Dec 12, 2022, 1:49 AM PST for Marin County, Napa County, Sonoma County, California. It took effect at Dec 13, 2022, 1:00 AM PST. It was in force for 8 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: Dec 12, 2022, 1:49 AM PST (09:49 UTC)
In effect from: Dec 13, 2022, 1:00 AM PST
Expired: Dec 13, 2022, 9:00 AM PST
In force: 8 hr
Issued by: NWS San Francisco Bay Area, CA

Counties Marin County, CA, Napa County, CA, Sonoma County, CA

The radar

The Sacramento radar (KDAX), 88 km from the middle of the area, began a volume at 09:50 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 freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Francisco Bay Area, CA wrote its last area forecast discussion before this freeze warning went out at Dec 11, 9:35 PM PST, 4 hours 14 minutes earlier.

Area forecast discussion, Dec 11, 9:35 PM PST, 4 hours 14 minutes before

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In the hours before

Special weather statement, Dec 11, 10:53 PM PST, 2 hours 56 minutes before

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Local storm report, Dec 11, 11:33 PM PST, 2 hours 16 minutes before

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Special weather statement, Dec 11, 11:47 PM PST, 2 hours 2 minutes before

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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.
      </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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Special weather statement, Dec 12, 12:41 AM PST, 1 hour 8 minutes before

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<head>
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  <title>Service Notice</title>
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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.
      </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>
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</body>
</html>

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 11, 10:53 PM PST	Special Weather Statement	MTR	Santa Cruz	37 min

Nearby

Freeze Warnings in California, 2022 Every freeze warning in 2022

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.