An area of low pressure over western Pennsylvania during the afternoon of March 10th moved north to near Buffalo during the evening hours.  The low then lingered over southeastern Ontario through the early afternoon hours of the 11th while slowly weakening.  Areas of light freezing rain developed during the evening hours in association with this low. The freezing rain changed to snow by late in the evening.  Periods of moderate to heavy snow were then reported from around midnight on the 11th through midday. A few rumbles of thunder were reported during the early morning hours.  The snow finally tapered to flurries during the early evening hours of the 11th. Snowfall totals ranged six to twelve inches over much of Erie and Crawford Counties.  A peak total of 13.1 inches was measured at Franklin Center in Erie County with a peak of 12.0 inches at Conneautville in Crawford County. North to northwest winds gusting to as much as 25 mph accompanied the snow and caused some blowing and drifting initially. Temperatures eventually warmed to near the freezing mark resulting in less blowing but very wet and heavy snow. Travel was difficult during this storm and many accidents were reported. Many school districts either delayed or canceled classes on the 11th.

Winter Storm in SOUTHERN ERIE, PENNSYLVANIA
From 10-MAR-11 20:00:00 to 11-MAR-11 17:00:00 (EST-5)
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain began during the evening hours of March 10th and changed to snow toward midnight.   Periods of moderate to heavy snow were reported from around midnight on the 11th through midday.  The snow tapered to flurries during the late afternoon hours of the 11th.  Snowfall totals over inland Erie County ranged from six to twelve inches with a peak of 13.1 inches reported at Franklin Center.  A slight glaze of ice of was also reported.  North to northwest winds gusting to as much as 25 mph accompanied the snow and caused some blowing and drifting initially. Temperatures eventually warmed to near the freezing mark resulting in less blowing but very wet and heavy snow. Travel was difficult during this storm and many accidents were reported. Many school districts either delayed or canceled classes on the 11th.

Winter Storm in CRAWFORD, PENNSYLVANIA
From 10-MAR-11 20:00:00 to 11-MAR-11 18:00:00 (EST-5)
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snow began during the evening hours of March 10th.  Some patchy freezing rain or drizzle mixed with the snow initially.  Periods of moderate to heavy snow were reported from around midnight on the 11th through midday.  The snow tapered to flurries during the early evening hours of the 11th.  Snowfall totals over Crawford County ranged from six to ten inches with a peak of 12.0 inches at Conneautville.  North to northwest winds gusting to as much as 25 mph accompanied the snow and caused some blowing and drifting initially. Temperatures eventually warmed to near the freezing mark resulting in less blowing but very wet and heavy snow. Travel was difficult during this storm and many accidents were reported. Many school districts either delayed or canceled classes on the 11th.

Winter Storm in NORTHERN ERIE, PENNSYLVANIA
From 10-MAR-11 20:00:00 to 11-MAR-11 16:00:00 (EST-5)
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain began during the evening hours of March 10th and changed to snow toward midnight.   Periods of moderate to heavy snow were reported from around midnight on the 11th through midday.  The snow tapered to flurries during the late afternoon hours of the 11th.  Snowfall totals over northern Erie County ranged from six to ten inches.  A slight glaze of ice of was also reported.  Officially, 8.5 inches of snow was reported at Erie International Airport.  North to northwest winds gusting to as much as 25 mph accompanied the snow and caused some blowing and drifting initially. Temperatures eventually warmed to near the freezing mark resulting in less blowing but very wet and heavy snow. Travel was difficult during this storm and many accidents were reported. Many school districts either delayed or canceled classes on the 11th.