Henry Margusity

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Latest Snow Map...This Weekend and Next Week

February 13, 2013; 12:48 PM ET


The storm coming trough the Ohio Valley this morning has produced 1-3 inches of snow along the Ohio River. The snow should come over the mountains tonight and go right down the PA turnpike as a reference. Interestingly, the HRRR model has a max of snow over Philly tonight. Even the NAM and GFS hold back a swath of heavier precipitation hanging back into southeastern Pennsylvania and southern New Jersey. So while I have a coating to 3-inch swath through that area, I would not be surprised to see over 3 inches tonight.

The storm this weekend continues to avoid the operational models. I am not letting my guard down on the storm this weekend. I have seen times when a storm can spin up along the arctic front at the last second and produce a swath of heavy snow with high ratios. So anyone from North Carolina to Maine, it's not a done deal just yet.

Next week, a more potent storm will cut into the Great Lakes. What impresses me about the storm is the potential for severe weather in the Tennessee Valley. It would appear the Gulf of Mexico will open up which would fuel the storms. On the flip side, a swath of snow will go from the Ozarks to Ontario, and it's possible some areas could have a foot of snow.

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Henry Margusity
AccuWeather.com severe weather expert, Henry Margusity, offers the Meteorological Madness blog including detailed analysis of severe weather across the US.