Alert archive / California / Heat Advisories in 2021

Heat Advisory 6, NWS Los Angeles, CA

August 2, 2021Los Angeles County, Santa Barbara County, California

NWS Los Angeles, CA issued this heat advisory at Aug 2, 2021, 2:28 AM PDT for Los Angeles County, Santa Barbara County, California. It took effect at Aug 2, 2021, 9:43 AM PDT. It was in force for 58 hr.

The area

The counties it named.

The facts

Issued
Aug 2, 2021, 2:28 AM PDT (09:28 UTC)
In effect from
Aug 2, 2021, 9:43 AM PDT
Expired
Aug 4, 2021, 8:00 PM PDT
In force
58 hr
Issued by
NWS Los Angeles, CA

Counties Los Angeles County, CA, Santa Barbara County, CA

The radar

The Los Angeles radar (KVTX), 6 km from the middle of the area, began a volume at 09:30 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 heat 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 heat advisory went out at Aug 2, 1:42 AM PDT, 46 minutes earlier.

Area forecast discussion, Aug 2, 1:42 AM PDT, 46 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 Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 2:28 AM PDTExcessive Heat WatchLOX9 hr
Aug 2, 2:28 AM PDTWind AdvisoryLOX25 hr
Aug 2, 11:55 AM PDTExcessive Heat WarningLOX56 hr

Nearby

Heat Advisories in California, 2021Every heat advisory in 2021

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.