Low pressure will develop near Texas on Friday and move ENE to the Tenn Valley by Saturday morning. Once again, a large area of snow, ice, and rain will breakout ahead of this storm over the Deep South and Tenn Valley, then move into VA and the M/A States on Saturday and Saturday Night.
Initially cold air will be in place for much of Saturday, so snow will develop early Saturday morning over SW and Central VA, then spread rapidly Northeastward into the northern M/A and Del Valley by noon.
For SW and Central VA, Snow will quickly become moderate to heavy at times, with a 4-6 hour thump of heavier snow during the late morning and afternoon hours. Warmer air aloft will work in from the southwest and snow will mix with and change to sleet and freezing rain towards evening and continue until around midnight, before changing to rain.
I'm forecasting a general 3"-6" of snow for ROA / LYH / CHO, VA Areas, then around .10" to .25" of Ice accumulation during the evening hours. Some light rain can be expected during the overnight hours and into Sunday morning before ending.
Temps will moderate to the low and mid 40's on Sunday, but that will be short lived as more very cold air drives back in behind this system for Monday and into all of next week. Another snow and or ice event is possible later next week.
For The Delaware Valley, you can expect a general 1"-3" for PHL / Interior Southern NJ / and Northern DE.
For Central / Southern DE and Coastal Southern NJ, only a C-1" (Mostly Rain)
For N & W Suburbs of PHL / SE PA around 3"-5" for Saturday afternoon and evening, before changing to some ice then rain.
If needed, I'll do an update later Friday, this is a very tricky system and changes may be needed to this call later tomorrow. For now this is my best estimate and call on the upcoming storm !
Take Care,
Ruggie
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