An area of low pressure developed across the northern plains on Thursday February 7th, tracking eastward. Meanwhile, another area of low pressure developed along the coast of North Carolina, tracking northeast. Both lows approached the area on Friday February 8th with the coastal low intensifying as it moved toward the northeast. The two lows interacted with one another with the coastal low eventually absorbing the inland low late Friday. The system moved off toward New England on Friday night, moving into the Canadian Maritimes by Saturday afternoon.
Wind gusts of 30 to 40 mph were recorded across the state with scattered power outages reported. A peak wind speed of 52 mph was recorded at the Mount Pocono Airport (Monroe County).
Precipitation started to spread across the area during the morning hours on Friday February 8th. Areas across the Lehigh Valley and points north started as all snow and remained snow through the entire event. Some areas started as a mix of snow and rain before changing over to all rain during the daytime hours. A changeover to all snow occurred during the evening. Across eastern Pennsylvania, amounts ranged from an inch or less across parts of Chester County and up to 9 inches in the Southern Poconos. Roads became snow covered and slushy, making travel hazardous. Some schools closed early or remained closed on Friday in advance of the storms arrival. Scattered power outages were also reported. While conditions were not as bad through the Philadelphia metro area, there were at least a hundred flights at Philadelphia International Airport that were cancelled due to the storm.
Representative snowfall included 9.0 inches in Summit Hill (Carbon County), 8.5 inches in Weatherly (Carbon County), 8.0 inches in Pocono Lake (Monroe County), 7.0 inches in Blakeslee and  Emerald Lakes (Monroe County) and Portland (Northampton County), 6.8 inches in Williams Township (Northampton County) and Langhorne (Bucks County), 6.3 inches in Springtown (Bucks County), 5.7 inches at the Lehigh Valley International Airport in Allentown (Lehigh County), 5.2 inches in Slatington (Lehigh County), 5.0 inches in Fleetwood (Berks County), 4.7 inches in Somerton (Philadelphia County), 3.8 inches in Alburtis (Berks County), 3.4 inches in Blue Bell (Montgomery County), 3.0 inches in Wayne (Delaware County), Northeast Philadelphia (Philadelphia County) and Telford (Montgomery County), 1.5 inches in Drexel Hill (Delaware County), 1.4 inches in Devault (Chester County) and at the Philadelphia International Airport (Philadelphia County) and 1.3 inches in Chester Springs (Chester County).

Winter Weather in PHILADELPHIA, PENNSYLVANIA
From 08-FEB-13 19:00:00 to 09-FEB-13 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in LEHIGH, PENNSYLVANIA
From 08-FEB-13 09:30:00 to 09-FEB-13 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MONROE, PENNSYLVANIA
From 08-FEB-13 00:30:00 to 09-FEB-13 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in LOWER BUCKS, PENNSYLVANIA
From 08-FEB-13 19:45:00 to 09-FEB-13 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in UPPER BUCKS, PENNSYLVANIA
From 08-FEB-13 07:00:00 to 09-FEB-13 06:45:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in NORTHAMPTON, PENNSYLVANIA
From 08-FEB-13 09:30:00 to 09-FEB-13 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN MONTGOMERY, PENNSYLVANIA
From 08-FEB-13 19:00:00 to 09-FEB-13 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in BERKS, PENNSYLVANIA
From 08-FEB-13 09:30:00 to 09-FEB-13 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in DELAWARE, PENNSYLVANIA
From 08-FEB-13 19:00:00 to 09-FEB-13 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in CARBON, PENNSYLVANIA
From 08-FEB-13 09:30:00 to 09-FEB-13 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter