A significant winter storm affected much of Central Pennsylvania from the evening of the 15th through the 16th. Heavy snow fell over the northern tier Counties, with a mixture of snow, sleet and freezing rain over the South Central Mountains and Middle/Lower Susquehanna Valley.
Numerous reports of hazardous road conditions and downed utility lines and trees were received as the storm moved north across the Commonwealth. County 911 centers reported numerous vehicle accidents and power outages.  The Public Utility Commission reported more than one-hundred thousand customers were without power. Utility crews from Pennsylvania and Ohio were dispatched to make repairs and restore service. The affected counties coordinated with local emergency units and the American Red Cross to establish shelters for residents who were without power.

Winter Storm in LANCASTER, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A moderate to heavy coating of ice was common across the entire Lower Susquehanna Valley. Lancaster County emergency management along with trained spotters reported numerous trees and wires down, which resulted in over 11,000 reported power outages. MetEd electric company reported approximately 64,000 customers without power across the Lower Susquehanna Valley.
A brief period of sleet was observed at the onset of precipitation, but the heavy ice build-up was primarily due to freezing rain.

Winter Storm in SCHUYLKILL, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Schuylkill County emergency management reported numerous trees and wires down county-wide due to a heavy coating of ice.
Some sleet was observed at the onset of precipitation, but the heavy ice build-up was primarily due to a a prolonged period of freezing rain.

Winter Storm in ADAMS, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A moderate to heavy coating of ice was common across the entire Lower Susquehanna Valley, with approximately 64,000 power outages. Trained spotters reported over a half-inch of ice accretion on trees and wires. The heavy coating of ice brought down tree limbs and power lines, resulting in sporadic power outages across Adams County. Over three thousand people were without power in Gettysburg.
There was a brief period of sleet, but the ice build-up was primarily due to freezing rain.

Winter Storm in LEBANON, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A moderate to heavy coating of ice was common across the entire Lower Susquehanna Valley. Lebanon County emergency management along with trained spotters reported numerous trees and wires down. MetEd electric company reported approximately 64,000 customers without power across the Lower Susquehanna Valley.
A brief period of sleet was observed at the onset of precipitation, but the heavy ice build-up was primarily due to freezing rain.

Winter Storm in ELK, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

COOP observer reports from Elk County indicated six or more inches of sleet and snow.

Winter Storm in MCKEAN, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

COOP observer reports indicated six or more inches of sleet and snow across much of McKean County.

Winter Storm in WARREN, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

COOP observer reports indicated six or more inches of snow and sleet fell across Warren County.

Winter Storm in CAMBRIA, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A mixture of snow, sleet and freezing rain fell across Cambria County. Light accumulations of snow and sleet were observed along with significant ice build-up from freezing rain, especially across the highest elevations. The ice accretion brought down a few trees and wires, closing some secondary roads.

Winter Storm in SOMERSET, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A mixture of snow, sleet and freezing rain fell across Somerset County. Light accumulations of snow and sleet were observed along with significant ice build-up from freezing rain, especially across the highest elevations. The ice accretion brought down a few trees and wires.

Winter Storm in CLEARFIELD, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A mixture of snow, sleet and freezing rain fell across Clearfield County. However, most of the precipitation fell as sleet and snow. The COOP observer in Grampian reported ten inches of sleet and snow.

Winter Storm in CUMBERLAND, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A moderate to heavy coating of ice was common across the entire Lower Susquehanna Valley, with over 64,000 power outages. Reports from emergency management officials, spotters and local web cams suggested a quarter to one-half inch of ice build-up, which brought down numerous trees and wires county-wide.
A brief period of sleet was observed at the onset of precipitation, but the primary cause of the icing was freezing rain.

Winter Storm in DAUPHIN, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A moderate to heavy coating of ice was common across the entire Lower Susquehanna Valley, with over 64,000 power outages. Reports from emergency management officials, spotters and local web cams suggested a quarter to one-half inch of ice build-up, which brought down numerous trees and wires across the southern half of Dauphin County.
A brief period of sleet was observed at the onset of precipitation, but the primary cause of the icing was freezing rain.
Over 25,000 customers were without power in Dauphin County - many of them in the Harrisburg and Hershey areas.

Winter Storm in FRANKLIN, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A moderate to heavy coating of ice was common across the entire Lower Susquehanna Valley, with over 64,000 power outages. Trained Spotters reported one-quarter inch ice build-up on trees and and wires. Franklin County emergency management reported numerous downed trees and wires as a result of the heavy ice coating. Gusty winds brought down ice-laden trees, resulting in power outages in the Mont Alto area. Trained spotters in Green Castle also reported strong winds.
A brief period of sleet was observed at the onset of precipitation, but the ice build-up was primarily due to freezing rain.

Winter Storm in YORK, PENNSYLVANIA
From 15-DEC-07 20:00:00 to 16-DEC-07 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

York County emergency management reported numerous trees and wires down county-wide due to a heavy coating of ice. The ice build up resulted in widespread power outages, with over 22,000 MetEd customers without power. Over 9,000 of these outages were in the York city area with approximately 4,100 customers without power in Hanover and around 6,000 in Dillsburg.
Overall, 64,000 customers were affected by power outages throughout the Lower Susquehanna Valley.
Some sleet was observed at the onset of precipitation, but the heavy coasting of ice was primarily due to freezing rain.