Alert archive / Pennsylvania / Dense Fog Advisories in 2013

Dense Fog Advisory 8, NWS Philadelphia/Mount Holly

October 31, 2013Berks County, Chester County, Pennsylvania

NWS Philadelphia/Mount Holly issued this dense fog advisory at Oct 31, 2013, 1:34 AM EDT for Berks County, Chester County, Pennsylvania. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Oct 31, 2013, 1:34 AM EDT (05:34 UTC)
Expired: Oct 31, 2013, 9:00 AM EDT
In force: 7 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Berks County, PA, Chester County, PA

The radar

The Philadelphia radar (KDIX), 124 km from the middle of the area, began a volume at 05:31 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 Oct 30, 9:04 PM EDT, 4 hours 30 minutes earlier.

Area forecast discussion, Oct 30, 9:04 PM EDT, 4 hours 30 minutes before

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Hazardous weather outlook, Oct 30, 3:56 PM EDT, 9 hours 38 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
Oct 31, 3:35 AM EDT	Gale Warning	PHI		34 hr

Nearby

Dense Fog Advisories in Pennsylvania, 2013 Every dense fog advisory in 2013

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.