Alert archive / California / Special Marine Warnings in 2023

Special Marine Warning 21, NWS San Francisco Bay Area, CA

January 10, 2023

NWS San Francisco Bay Area, CA issued this special marine warning at Jan 10, 2023, 8:28 AM PST. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 10, 2023, 8:28 AM PST (16:28 UTC)
Expired: Jan 10, 2023, 9:00 AM PST
In force: 32 min
Issued by: NWS San Francisco Bay Area, CA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 40.0 mph

What forecasters said that day

The local office's own words before this special marine 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 special marine warning went out at Jan 10, 4:57 AM PST, 3 hours 31 minutes earlier.

Area forecast discussion, Jan 10, 4:57 AM PST, 3 hours 31 minutes before

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In the hours before

Special weather statement, Jan 10, 8:09 AM PST, 19 minutes before

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<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Local storm report, Jan 10, 8:11 AM PST, 17 minutes before

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  <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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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jan 10, 8:17 AM PST, 11 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.
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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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Special weather statement, Jan 10, 8:18 AM PST, 10 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, Jan 10, 8:23 AM PST, 5 minutes before

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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>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jan 10, 8:24 AM PST, 4 minutes before

<!doctype html>
<html lang="en">
<head>
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  <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 San Francisco Bay Area, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 10, 12:17 AM PST	Special Marine Warning	MTR		28 min
Jan 10, 12:55 AM PST	Areal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more	3 hr
Jan 10, 12:59 AM PST	Special Marine Warning	MTR		31 min
Jan 10, 1:28 AM PST	Special Marine Warning	MTR		32 min
Jan 10, 1:57 AM PST	Special Weather Statement	MTR	San Mateo	18 min
Jan 10, 2:03 AM PST	Special Marine Warning	MTR		12 min
Jan 10, 2:17 AM PST	Special Weather Statement	MTR	Alameda, Contra Costa, Napa	28 min
Jan 10, 2:21 AM PST	Special Weather Statement	MTR	San Benito, Santa Clara, Santa Cruz	24 min
Jan 10, 2:50 AM PST	Special Weather Statement	MTR	Alameda	10 min
Jan 10, 5:20 AM PST	Special Weather Statement	MTR	Sonoma	25 min
Jan 10, 5:51 AM PST	Special Weather Statement	MTR	San Mateo	24 min
Jan 10, 5:55 AM PST	Special Marine Warning	MTR		20 min
Jan 10, 6:13 AM PST	Special Weather Statement	MTR	Contra Costa	32 min
Jan 10, 6:17 AM PST	Special Marine Warning	MTR		28 min
Jan 10, 6:31 AM PST	River Flood Warning	MTR	Monterey	36 hr
Jan 10, 6:38 AM PST	Special Marine Warning	MTR		37 min
Jan 10, 6:39 AM PST	Special Marine Warning	MTR		36 min
Jan 10, 6:41 AM PST	Special Marine Warning	MTR		34 min
Jan 10, 6:45 AM PST	Special Weather Statement	MTR	Contra Costa	15 min
Jan 10, 6:56 AM PST	Special Weather Statement	MTR	Santa Clara	34 min
Jan 10, 6:59 AM PST	Special Marine Warning	MTR		16 min
Jan 10, 7:02 AM PST	Special Weather Statement	MTR	Marin	43 min
Jan 10, 7:07 AM PST	Special Weather Statement	MTR	Alameda, Contra Costa	38 min
Jan 10, 7:08 AM PST	Special Weather Statement	MTR	San Mateo, Santa Cruz	22 min
Jan 10, 7:28 AM PST	Special Marine Warning	MTR		47 min
Jan 10, 7:30 AM PST	Special Marine Warning	MTR		45 min
Jan 10, 7:44 AM PST	Special Weather Statement	MTR	Alameda	31 min
Jan 10, 7:50 AM PST	Special Marine Warning	MTR		25 min
Jan 10, 7:53 AM PST	Special Weather Statement	MTR	Marin	37 min
Jan 10, 7:55 AM PST	Special Weather Statement	MTR	Alameda, San Mateo	35 min
Jan 10, 8:09 AM PST	Special Weather Statement	MTR	Santa Clara	36 min
Jan 10, 8:18 AM PST	Special Weather Statement	MTR	Santa Cruz	27 min
Jan 10, 8:23 AM PST	Special Weather Statement	MTR	Marin	37 min
Jan 10, 8:30 AM PST	Special Weather Statement	MTR	Alameda	30 min
Jan 10, 8:34 AM PST	Special Weather Statement	MTR	Alameda	26 min
Jan 10, 8:50 AM PST	Special Weather Statement	MTR	Contra Costa	25 min
Jan 10, 8:55 AM PST	Small Craft Advisory	MTR		3 days
Jan 10, 9:04 AM PST	Special Weather Statement	MTR	Santa Clara	26 min
Jan 10, 9:14 AM PST	Special Weather Statement	MTR	Contra Costa	31 min
Jan 10, 9:23 AM PST	Special Weather Statement	MTR	Monterey	37 min
Jan 10, 9:38 AM PST	Special Weather Statement	MTR	Alameda	37 min
Jan 10, 9:43 AM PST	Special Weather Statement	MTR	San Mateo	47 min
Jan 10, 9:49 AM PST	Special Weather Statement	MTR	Contra Costa	26 min
Jan 10, 10:11 AM PST	Special Weather Statement	MTR	Contra Costa	34 min
Jan 10, 10:21 AM PST	Special Weather Statement	MTR	Contra Costa	24 min
Jan 10, 10:21 AM PST	Special Weather Statement	MTR	Alameda	39 min
Jan 10, 10:43 AM PST	Special Marine Warning	MTR		62 min
Jan 10, 10:54 AM PST	Special Weather Statement	MTR	Monterey, San Benito	36 min
Jan 10, 11:20 AM PST	Special Weather Statement	MTR	San Mateo	40 min
Jan 10, 11:29 AM PST	Special Marine Warning	MTR		61 min
Jan 10, 11:36 AM PST	Special Weather Statement	MTR	Contra Costa	39 min
Jan 10, 11:37 AM PST	Special Weather Statement	MTR	Sonoma	38 min
Jan 10, 11:44 AM PST	Special Weather Statement	MTR	Marin	46 min
Jan 10, 11:56 AM PST	Special Weather Statement	MTR	San Mateo	34 min
Jan 10, 11:59 AM PST	Special Marine Warning	MTR		31 min
Jan 10, 12:11 PM PST	Areal Flood Warning	MTR	City and County of San Francisco, San Mateo	3 hr
Jan 10, 12:19 PM PST	Flash Flood Warning Considerable damage threat	MTR	City and County of San Francisco, San Mateo	85 min
Jan 10, 12:19 PM PST	Special Weather Statement	MTR	Contra Costa	41 min
Jan 10, 12:25 PM PST	Special Marine Warning	MTR		35 min
Jan 10, 12:26 PM PST	Areal Flood Warning	MTR	Alameda, Contra Costa	3 hr
Jan 10, 12:37 PM PST	Special Weather Statement	MTR	Contra Costa	38 min
Jan 10, 12:49 PM PST	Areal Flood Warning	MTR	Marin	3 hr
Jan 10, 12:58 PM PST	Special Weather Statement	MTR	Contra Costa, Marin	62 min
Jan 10, 1:08 PM PST	Special Marine Warning	MTR		37 min
Jan 10, 1:09 PM PST	Special Weather Statement	MTR	Contra Costa	36 min
Jan 10, 1:11 PM PST	Flash Flood Warning Considerable damage threat	MTR	Monterey	6 hr
Jan 10, 1:41 PM PST	Special Marine Warning	MTR		49 min
Jan 10, 2:00 PM PST	Special Weather Statement	MTR	Marin	45 min
Jan 10, 2:02 PM PST	Special Marine Warning	MTR		43 min
Jan 10, 2:36 PM PST	Special Weather Statement	MTR	Contra Costa	24 min
Jan 10, 2:38 PM PST	Special Marine Warning	MTR		37 min
Jan 10, 2:57 PM PST	Special Weather Statement	MTR	Contra Costa	33 min
Jan 10, 3:03 PM PST	Special Weather Statement	MTR	Contra Costa	57 min
Jan 10, 3:16 PM PST	Special Weather Statement	MTR	Contra Costa	29 min
Jan 10, 3:57 PM PST	Special Weather Statement	MTR	Sonoma	33 min
Jan 10, 3:58 PM PST	Small Craft Advisory	MTR		29 hr

Nearby

Special Marine Warnings in California, 2023 Every special marine warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.