The storm's heavy rain will pelt much of the Northeast on Monday into Tuesday with rainfall of 1-2 inches. Gales will rake the New England coast.
Severe thunderstorms will be possible farther south, between the Delmarva and northeastern Florida. Damaging winds and hail could hit the southern I-95 corridor.
Farther west, a blast of sharp cold winds will sweep southeastward over the Mississippi Valley to the Appalachians, lending a feel of winter for millions of people. This cold outbreak will set up late-season frost and freeze over the mid-South and the Southeast.
Showers of snow and rain will spread widely over the Midwest to the Appalachians. An area of Michigan, northern Ohio, western New York and western Pennsylvania will have some accumulating snow.
Story by AccuWeather Senior Meteorologist Jim Andrews.