Alert archive / New Jersey / Dense Fog Advisories in 2024

Dense Fog Advisory 2, NWS Philadelphia/Mount Holly

January 24, 202410 counties in New Jersey; 8 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this dense fog advisory at Jan 24, 2024, 2:14 PM EST for 10 counties in New Jersey; 8 counties in Pennsylvania. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Jan 24, 2024, 2:14 PM EST (19:14 UTC)
Expired
Jan 25, 2024, 1:00 AM EST
In force
11 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 19:15 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 dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this dense fog advisory went out at Jan 24, 12:27 PM EST, 1 hour 47 minutes earlier.

Area forecast discussion, Jan 24, 12:27 PM EST, 1 hour 47 minutes before
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Hazardous weather outlook, Jan 24, 11:40 AM EST, 2 hours 34 minutes before
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  <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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In the hours before

Special weather statement, Jan 24, 11:37 AM EST, 2 hours 37 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 24, 1:58 AM ESTSmall Craft AdvisoryPHI29 hr
Jan 24, 2:19 PM ESTMarine Dense Fog AdvisoryPHI7 hr
Jan 24, 10:59 AM ESTDense Fog AdvisoryPHIBucks, Chester, Delaware, Montgomery3 hr

Nearby

Dense Fog Advisories in New Jersey, 2024Dense Fog Advisories in Pennsylvania, 2024Every dense fog advisory in 2024

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.