Alert archive / New Jersey / Dense Fog Advisories in 2018

Dense Fog Advisory 14, NWS Philadelphia/Mount Holly

September 12, 201813 counties in New Jersey; 5 counties in Pennsylvania; Kent County, New Castle County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this dense fog advisory at Sep 12, 2018, 2:05 AM EDT for 13 counties in New Jersey; 5 counties in Pennsylvania; Kent County, New Castle County, Sussex County, Delaware. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Sep 12, 2018, 2:05 AM EDT (06:05 UTC)
Expired: Sep 12, 2018, 10:00 AM EDT
In force: 8 hr
Issued by: NWS Philadelphia/Mount Holly

All 21 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 52 km from the middle of the area, began a volume at 06:07 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 Sep 11, 9:44 PM EDT, 4 hours 21 minutes earlier.

Area forecast discussion, Sep 11, 9:44 PM EDT, 4 hours 21 minutes before

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Hazardous weather outlook, Sep 11, 7:55 PM EDT, 6 hours 10 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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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
Sep 12, 2:12 AM EDT	Marine Dense Fog Advisory	PHI		33 hr
Sep 12, 3:41 PM EDT	Dense Fog Advisory	PHI	Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more	14 hr
Sep 12, 3:50 PM EDT	High Surf Advisory	PHI	Atlantic, Cape May, Monmouth, Ocean	52 hr
Sep 12, 4:06 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset	3 hr
Sep 12, 4:39 PM EDT	Areal Flood Warning	PHI	Cumberland, Salem	16 hr
Sep 12, 5:07 PM EDT	Areal Flood Advisory	PHI	Hunterdon	4 hr
Sep 12, 7:25 PM EDT	Areal Flood Warning	PHI	Hunterdon	2 hr
Sep 12, 4:36 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	3 hr

Nearby

Dense Fog Advisories in New Jersey, 2018 Dense Fog Advisories in Pennsylvania, 2018 Dense Fog Advisories in Delaware, 2018 Every dense fog advisory in 2018

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.