Alert archive / New Jersey / Dense Fog Advisories in 2023

Dense Fog Advisory 9, NWS Philadelphia/Mount Holly

August 17, 2023Atlantic County, Cape May County, New Jersey; Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this dense fog advisory at Aug 17, 2023, 6:46 AM EDT for Atlantic County, Cape May County, New Jersey; Sussex County, Delaware. It took effect at Aug 17, 2023, 7:00 AM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Aug 17, 2023, 6:46 AM EDT (10:46 UTC)
In effect from: Aug 17, 2023, 7:00 AM EDT
Expired: Aug 17, 2023, 10:00 AM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Sussex County, DE, Atlantic County, NJ, Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 52 km from the middle of the area, began a volume at 10:48 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 Aug 17, 3:35 AM EDT, 3 hours 11 minutes earlier.

Area forecast discussion, Aug 17, 3:35 AM EDT, 3 hours 11 minutes before

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Hazardous weather outlook, Aug 17, 4:51 AM EDT, 1 hour 55 minutes before

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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
Aug 17, 3:28 AM EDT	Small Craft Advisory	PHI		31 hr
Aug 17, 6:45 AM EDT	Marine Dense Fog Advisory	PHI		5 hr

Nearby

Dense Fog Advisories in New Jersey, 2023 Dense Fog Advisories in Delaware, 2023 Every dense fog advisory 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; radar from the NEXRAD Level II archive.