A cold front swinging into the Northeast will bring the threat of severe weather to part of the region into Tuesday evening.
Showers and thunderstorms were developing ahead of the cold front and will track eastward and reach the I-81 corridor during the evening commute.
The area at most risk of being hit by a severe thunderstorm packing damaging winds will stretch from central Vermont, across central Pennsylvania and over northeastern Kentucky.
However, any thunderstorm that develops over the region can bring the dangers of torrential downpours and frequent lightning.
Syracuse and Binghamton, New York; Pittsburgh and State College, Pennsylvania; Charleston and Morgantown, West Virginia; and Lexington, Kentucky, are several cities that may be impacted by a severe thunderstorm.
Wind gusts may occasionally gust past 60 mph in this zone which is strong enough to blow over trees and cause localized power outages.
Although thunderstorms are not forecast to turn severe from Washington, D.C., to Philadelphia and New York City, spotty showers and thunderstorms will survive the trip to the I-95 corridor Tuesday night.
With much of the day being dry, temperatures along the I-95 corridor will soar past 90 F with factors such as humidity making it feel even hotter.
AccuWeather.com RealFeel® temperatures will top in the 90s in many places east of the Appalachian Mountains and even reach the the 100-degree mark in some places.
Some cooler and less humid air will reach the central and northern Appalachians and New England at midweek. However, the reduction in warmth and humidity will be limited at midweek over the coastal mid-Atlantic and non-existent in the South.
Unsettled weather for the extended Labor Day weekend will be across the Southeast, Upper Midwest, northern Rockies and the Four Corners.
Tropical Depression 14-E is several hundred miles southwest of Mexico and is expected to strengthen slowly into a tropical storm.
A stormy weather pattern will prevail through September across much of southern South America.
While lulls in tropical activity in the Atlantic will continue, a rapid end to the hurricane season in September does not always occur during an El Niño.
The combination of moisture from Erika and a non-tropical system will drench areas from Florida to the South Carolina coast through the middle of the week.
Heat will be erased by an autumnlike air mass across parts of northern Europe.