A low pressure system emerging from the Gulf of Mexico combining with a cold air mass in place produced a wintry mix of precipitation at the onset of the event across the far northwest Philadelphia suburbs, Berks County, the Lehigh Valley and the Poconos on the 26th. The most protracted wintry precipitation occurred on the Pocono Plateau where a couple of inches of snow was followed by a couple of tenths of an inch of ice.  South of the Poconos, most of the wintry precipitation was in the form of freezing rain as pockets of ice were reported as far south as some of the Philadelphia northwest suburbs. In the Poconos, precipitation started as snow during the early morning of the 26th and changed over to sleet and then freezing rain during the afternoon of the 26th. Precipitation changed over to plain rain late that evening. Elsewhere, precipitation started briefly as snow and sleet on the morning of the 26th before changing over to rain and freezing rain. Temperatures hovered right around the freezing mark, so freezing rain was elevation dependent. Enough warm air moved in by the early evening of the 26th to change the precipitation over to plain rain.  Until the changeover, untreated roadways were hazardous. In Monroe County, dozens of cars skidded off roadways, but no serious injuries were reported.
Snowfall included 3.1 inches in Tobyhanna (Monroe County), 0.5 inches in Pocono Summit and Reeders in Monroe County and in Albrightsville (Carbon County).  Ice accumulations included 0.20 in Tobyhanna (Monroe County) and 0.15 inches in East Nantmeal Township (Chester County).

The wintry mix was caused by a low pressure system that emerged from the Gulf of Mexico on the morning of the 26th. The low tracked northeastward through the Florida Panhandle on the afternoon of the 26th and into the Carolinas on the evening of the 26th.  Enough cold air was initially in place to cause the wintry mix until the circulation around the low brought in sufficient warm air near the surface from the Atlantic Ocean.

Winter Weather in CARBON, PENNSYLVANIA
From 26-NOV-13 07:00:00 to 26-NOV-13 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MONROE, PENNSYLVANIA
From 26-NOV-13 07:00:00 to 26-NOV-13 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LEHIGH, PENNSYLVANIA
From 26-NOV-13 10:00:00 to 26-NOV-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in BERKS, PENNSYLVANIA
From 26-NOV-13 10:00:00 to 26-NOV-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in NORTHAMPTON, PENNSYLVANIA
From 26-NOV-13 10:00:00 to 26-NOV-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in UPPER BUCKS, PENNSYLVANIA
From 26-NOV-13 10:00:00 to 26-NOV-13 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN CHESTER, PENNSYLVANIA
From 26-NOV-13 10:00:00 to 26-NOV-13 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN MONTGOMERY, PENNSYLVANIA
From 26-NOV-13 10:00:00 to 26-NOV-13 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter