Alert archive / New Jersey / Dense Fog Advisories in 2026

Dense Fog Advisory 6, NWS Philadelphia/Mount Holly

March 4, 20265 counties in New Jersey; Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this dense fog advisory at Mar 4, 2026, 1:08 PM EST for 5 counties in New Jersey; Sussex County, Delaware. It took effect at Mar 4, 2026, 6:00 PM EST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: Mar 4, 2026, 1:08 PM EST (18:08 UTC)
In effect from: Mar 4, 2026, 6:00 PM EST
Expired: Mar 5, 2026, 5:15 AM EST
In force: 11 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 18:08 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 Mar 4, 10:04 AM EST, 3 hours 4 minutes earlier.

Area forecast discussion, Mar 4, 10:04 AM EST, 3 hours 4 minutes before

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Hazardous weather outlook, Mar 4, 2:30 AM EST, 10 hours 38 minutes before

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  <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>
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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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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 4, 12:51 PM EST	Marine Dense Fog Advisory	PHI		45 hr

Nearby

Dense Fog Advisories in New Jersey, 2026 Dense Fog Advisories in Delaware, 2026 Every dense fog 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; radar from the NEXRAD Level II archive.