An area of weak low pressure over the northern Great Lakes at daybreak on December 29th moved southeast and eventually passed to the north of Lake Erie during the early morning hours of the 30th.  Snow associated with the low developed around midday on the 29th and transitioned completely to lake effect by early on the 30th as cold northwest winds behind the low interacted with Lake Erie.  The transition began first along the immediate lakeshore areas during the evening of the 29th.  The snow showers continued to intensify and shifted further onshore during the predawn hours of the 30th with moderate to heavy snow reported during the daylight hours of the 30th over about the northern half of the county.  Visibilities much of that time were under one half mile and sometimes less than a quarter of a mile.  Snowfall rates of 1 to 2 inches per hour occurred.  The snow showers tapered to flurries by early evening.  Northwest winds gusted to as much as 30 mph on the 30th causing considerable blowing and drifting.  Much of Erie County saw a foot or more of snow during this event, most of it on the 30th.  A peak total of 19.1 inches was reported at Harborcreek with 18.2 inches at Erie International Airport on the 29th and 30th.  Other totals included: 17.5 inches at Colt Station; 15.5 inches in Erie; 15.4 inches at Lake City; 15.0 inches in Greene Township; 14.0 inches at North East and 13.4 inches in Millcreek.  Travel was hampered by this event and many accidents were reported.

Lake-Effect Snow in NORTHERN ERIE, PENNSYLVANIA
From 29-DEC-17 11:00:00 to 30-DEC-17 19:00:00 (EST-5)
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An area of weak low pressure over the northern Great Lakes at daybreak on December 29th moved southeast and eventually passed to the north of Lake Erie during the early morning hours of the 30th. Snow associated with the low developed around midday on the 29th and transitioned completely to lake effect by early on the 30th as cold northwest winds behind the low interacted with Lake Erie. The transition began first along the immediate lakeshore areas during the evening of the 29th. The snow showers continued to intensify and shifted further onshore during the predawn hours of the 30th with moderate to heavy snow reported during the daylight hours of the 30th over about the northern half of the county. Visibilities much of that time were under one half mile and sometimes less than a quarter of a mile. Snowfall rates of 1 to 2 inches per hour occurred. The snow showers tapered to flurries by early evening. Northwest winds gusted to as much as 30 mph on the 30th causing considerable blowing and drifting. Much of Erie County saw a foot or more of snow during this event, most of it on the 30th. A peak total of 19.1 inches was reported at Harborcreek with 18.2 inches at Erie International Airport on the 29th and 30th. Other totals included: 17.5 inches at Colt Station; 15.5 inches in Erie; 15.4 inches at Lake City; 15.0 inches in Greene Township; 14.0 inches at North East and 13.4 inches in Millcreek. Travel was hampered by this event and many accidents were reported.

Lake-Effect Snow in SOUTHERN ERIE, PENNSYLVANIA
From 29-DEC-17 11:00:00 to 30-DEC-17 19:00:00 (EST-5)
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An area of weak low pressure over the northern Great Lakes at daybreak on December 29th moved southeast and eventually passed to the north of Lake Erie during the early morning hours of the 30th. Snow associated with the low developed around midday on the 29th and transitioned completely to lake effect by early on the 30th as cold northwest winds behind the low interacted with Lake Erie. The transition began first along the immediate lakeshore areas during the evening of the 29th. The snow showers continued to intensify and shifted further onshore during the predawn hours of the 30th with moderate to heavy snow reported during the daylight hours of the 30th over about the northern half of the county. Visibilities much of that time were under one half mile and sometimes less than a quarter of a mile. Snowfall rates of 1 to 2 inches per hour occurred. The snow showers tapered to flurries by early evening. Northwest winds gusted to as much as 30 mph on the 30th causing considerable blowing and drifting. Much of Erie County saw a foot or more of snow during this event, most of it on the 30th. A peak total of 19.1 inches was reported at Harborcreek with 18.2 inches at Erie International Airport on the 29th and 30th. Other totals included: 17.5 inches at Colt Station; 15.5 inches in Erie; 15.4 inches at Lake City; 15.0 inches in Greene Township; 14.0 inches at North East and 13.4 inches in Millcreek. Travel was hampered by this event and many accidents were reported.