Weather Map below shows clipper low moving toward New England coast...giving the Northeast a 2-4" snowfall today into tonight. Elsewhere the very cold weather in the Northern Plains will hold...while it gets milder elsewhere. That milder weather works to the East coast this weekend with some rain.
Satellite picture shows that clipper low near The Gt.Lakes....look closely. Next color enhancement in the Northwest will affect the Nation late week into the weekend with more rain than snow.
Below...maps show expected highs across N.A. - this pattern holds for another day or two. Following map...shows reported cases of the flu. As usual...it took a big jump since November with people moving about more so. Stay warm..safe...later.