A strong cold front encountered a record warm airmass across central Pennsylvania during the afternoon of February 25, generating widespread showers and thunderstorms. Some of the storms became severe across the Lower Susquehanna Valley. One cell displayed strong rotation and produced quarter-sized hail as it pushed from east-central York County northeastward across northern Lancaster County. Then, a line of storms followed the rotating cell, producing a bow echo and widespread wind damage as it crossed northern Lancaster County.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 15:32:00 to 25-FEB-17 15:32:00 (EST-5)
Location: LITITZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced quarter-sized hail near Lititz.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 14:33:00 to 25-FEB-17 14:33:00 (EST-5)
Location: KLINESVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced penny-sized hail just north of Columbia.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 14:38:00 to 25-FEB-17 14:38:00 (EST-5)
Location: MAYTOWN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced penny-sized hail in near Donegal Springs.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 14:42:00 to 25-FEB-17 14:42:00 (EST-5)
Location: FLORIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A severe thunderstorm produced quarter-sized hail near Mount Joy.

Hail in ADAMS, PENNSYLVANIA
From 25-FEB-17 14:50:00 to 25-FEB-17 14:50:00 (EST-5)
Location: MC SHERRYSTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail in near McSherrystown.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 14:44:00 to 25-FEB-17 14:44:00 (EST-5)
Location: MASTERSONVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm produced quarter-sized hail in in Mastersonville.

Hail in LEBANON, PENNSYLVANIA
From 25-FEB-17 15:05:00 to 25-FEB-17 15:05:00 (EST-5)
Location: MYERSTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced quarter-sized hail in Myerstown.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 15:28:00 to 25-FEB-17 15:28:00 (EST-5)
Location: MANHEIM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail near Manheim.

Funnel Cloud in LANCASTER, PENNSYLVANIA
From 25-FEB-17 14:33:00 to 25-FEB-17 14:33:00 (EST-5)
Location: KLINESVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced funnel clouds north of Columbia.

Hail in YORK, PENNSYLVANIA
From 25-FEB-17 14:22:00 to 25-FEB-17 14:22:00 (EST-5)
Location: YORKSHIRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced quarter-sized hail in Springettsbury Township.

Hail in LANCASTER, PENNSYLVANIA
From 25-FEB-17 14:38:00 to 25-FEB-17 14:38:00 (EST-5)
Location: MAYTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail near Maytown.

Hail in YORK, PENNSYLVANIA
From 25-FEB-17 14:50:00 to 25-FEB-17 14:50:00 (EST-5)
Location: HANOVER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail near Hanover.

Hail in LEBANON, PENNSYLVANIA
From 25-FEB-17 15:05:00 to 25-FEB-17 15:05:00 (EST-5)
Location: RICHLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A severe thunderstorm produced quarter-sized hail in Richland.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 25-FEB-17 15:20:00 to 25-FEB-17 15:20:00 (EST-5)
Location: MILLERSVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down a few trees near Millersville.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 25-FEB-17 15:00:00 to 25-FEB-17 15:00:00 (EST-5)
Location: LOGANVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced winds estimated near 60 mph and knocked down trees near Loganville.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 25-FEB-17 15:35:00 to 25-FEB-17 15:35:00 (EST-5)
Location: LEXINGTON
Magnitude: 78.00 EG
Property damage: 5.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst produced straight line winds of 70 to 90 mph, producing a 9 mile path of wind damage that was about 1/2 a mile in width.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 25-FEB-17 15:12:00 to 25-FEB-17 15:12:00 (EST-5)
Location: YOE
Magnitude: 70.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst produced straight line winds of 70 to 80 mph, producing a nine mile swath of wind damage that was approximately one mile in width across east-central York County and into far western Lancaster County. Numerous trees were toppled or snapped along the damage path, and several structures sustained roof damage. The damage path ran from just northwest of Freysville in York County east-northeastward to Columbia in Lancaster County.