Alert archive / California / Small Craft Advisories in 2026

Small Craft Advisory 3, NWS San Francisco Bay Area, CA

January 3, 2026

NWS San Francisco Bay Area, CA issued this small craft advisory at Jan 3, 2026, 8:12 PM PST. It took effect at Jan 3, 2026, 9:00 PM PST. It was in force for 49 hr.

The area

The counties it named.

The facts

Issued
Jan 3, 2026, 8:12 PM PST (04:12 UTC)
In effect from
Jan 3, 2026, 9:00 PM PST
Expired
Jan 5, 2026, 9:34 PM PST
In force
49 hr
Issued by
NWS San Francisco Bay Area, CA

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Jan 3, 4:48 PM PST, 3 hours 24 minutes earlier.

Area forecast discussion, Jan 3, 4:48 PM PST, 3 hours 24 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>

In the hours before

Local storm report, Jan 3, 7:19 PM PST, 53 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 San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 4, 1:01 AM PSTAreal Flood AdvisoryMTRSan Mateo4 hr
Jan 4, 1:07 AM PSTAreal Flood AdvisoryMTRNapa, Sonoma8 hr
Jan 4, 1:38 AM PSTAreal Flood AdvisoryMTRSan Mateo, Santa Clara, Santa Cruz3 hr
Jan 4, 2:00 AM PSTGale WarningMTR30 hr
Jan 4, 2:00 AM PSTSmall Craft AdvisoryMTR44 hr
Jan 4, 2:01 AM PSTAreal Flood AdvisoryMTRSan Mateo3 hr
Jan 4, 2:05 AM PSTAreal Flood AdvisoryMTRAlameda, Contra Costa3 hr
Jan 4, 2:17 AM PSTAreal Flood AdvisoryMTRCity and County of San Francisco, San Mateo86 min
Jan 4, 3:02 AM PSTSpecial Weather StatementMTRMarin28 min
Jan 4, 4:55 AM PSTAreal Flood AdvisoryMTRMonterey8 hr
Jan 4, 5:40 AM PSTAreal Flood AdvisoryMTRMonterey8 hr
Jan 4, 5:48 AM PSTSpecial Weather StatementMTRMarin27 min
Jan 4, 9:25 AM PSTAreal Flood AdvisoryMTRSanta Clara, Santa Cruz6 hr
Jan 4, 9:35 AM PSTAreal Flood AdvisoryMTRSan Mateo, Santa Clara3 hr
Jan 4, 9:50 AM PSTAreal Flood AdvisoryMTRAlameda, Contra Costa5 hr
Jan 4, 9:55 AM PSTAreal Flood AdvisoryMTRMonterey, San Benito, Santa Clara, Santa Cruz3 hr

Nearby

Small Craft Advisories in California, 2026Every small craft advisory in 2026

Sources

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