Thursday will bring rain--and Friday and the weekend are looking like a deep breath of fresh air for West Virginia

Public health experts advise people to drink plenty of fluids, stay out of the sun, and check up on relatives and neighbors who may be vulnerable to the heat. Young children and pets should never be left unattended in vehicles under any circumstances.

The NWS has issued a bulletin warning that 100-degree temperatures will likely hit residents in the middle of the US today. The cause for that thermometer spike is a growing heat dome in the Mississippi Valley that should expand to the northeast by the end of the week, potentially affecting more than 100 million people, per Accuweather.

A destructive derecho snapped trees and knocked out power to tens of thousands of people as it tore across portions of the northern Plains and Upper Midwest with hurricane-force wind gusts late Monday night and into early Tuesday morning.

Widespread heat indexes of 105 or higher will cover the eastern Plains, the Midwest, Mid-South and Southeast including Florida. Similar conditions are expected up the East Coast to the east of the Appalachians,

Heat dome continues over the South Carolina Midlands and afternoon storms could lead to localized flooding, depending on speed of storms

A heat dome continues to blanket much of the East Coast, driving up temperatures across the Washington, D.C. area on Tuesday.

In the beginning, a heat dome evaporates moisture in the soil. But then, the evaporation will significantly raise humidity.