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Erie PA Lake Effect Snow Warning Counties: Northern Erie; Southern Erie ...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST TUESDAY... * WHAT...Heavy lake effect snow. Additional snow accumulations between 12 and 22 inches across northern Erie County with 10 to 20 inches possible across southern Erie County. Locally higher amounts are possible, especially across northern Erie County. * WHERE...Northern Erie and Southern Erie Counties. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible, especially along the I-90 corridor and portions of I-86 and I-79 where 30 to 45 inches of snowfall has already occurred. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...The heavy band of lake effect snow is slowly shifting back south where it will again impact Erie County through Tuesday. Periods of snowfall rates of 1 to 2 inches per hour are possible. Highest accumulations are expected to be along and north of I-90. This additional snow would bring the storm total amounts to 4 to 6 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel. Visit www.511pa.com for the latest travel, roadway, and traffic conditions. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. During lake effect snow, the weather can vary from bands of locally heavy snow to dry weather just a few miles away. Visibilities can also vary greatly. Be prepared for rapid changes in weather, visibility, and road conditions. NOAA/NWS Posted on 12/1 #wxpa