Portions of New England and the Great Lakes will be the target of violent thunderstorms.

New England Severe Storm Threat

Eastern New England will be the target of violent thunderstorms, especially during the afternoon and evening hours, as a cold front pushes through the region.

Southeastern Maine to eastern Massachusetts is the zone at risk for thunderstorms capable of producing wind gusts over 60 mph, hail larger than quarters, numerous lightning strikes and torrential downpours.

Power outages and damage to vehicles and homes is possible as gusts will be high enough to down trees.

Portland, Maine, and Boston, Mass., are among the cities that may be threatened by damaging thunderstorms.

Great Lakes Severe Storm Threat

Severe thunderstorms will also erupt back across the Great Lakes region, while another storm system pushes east across the region. Cooler and drier air to the west will clash with hot and humid air that has been building across the Midwest, allowing the nasty thunderstorms to ignite.

Green Bay, Chicago, Detroit and Des Moines will be in the line of fire of thunderstorms through tonight.

Threats will be similar to the storms erupting in New England with high winds over 60 mph, large hail and heavy rain. A few tornadoes cannot be ruled out.

More isolated severe thunderstorms will also spark back across portions of the central Plains along the northern rim of extreme heat. Central Kansas and southeastern Nebraska could have a few big thunderstorms.

To the north of the severe thunderstorms, very heavy rain will pour down from showers and thunderstorms. Flash flooding will be a threat across the Upper Peninsula of Michigan and northern portions of Lower Michigan.

Parts of western New York and northern Pennsylvania could endure flooding thunderstorms through the overnight hours as the heavy thunderstorms follow the upper-level steering flow into the area.