CLEVELAND -- The heat and humidity are cranking up once again, which is why the National Weather Service has issued yet another Heat Advisory from 1-8 p.m. Thursday.
Heat index values are expected to range from 98 to 104 degrees as the day progresses.
A similar Heat Advisory was put in place Wednesday from 1-9 p.m.
Weather forecasters say this heat wave that is gripping most of the nation is courtesy of a strong high pressure system.
A Heat Advisory means that high temperatures and high humidity will combine to create a situation in which heat illnesses are possible.
GUIDE | Staying safe in extreme heat
It's advised to stay in an air-conditioned room, stay out of the sun, drink plenty of water and reduce unnecessary outdoor activities.
Similar heat is expected Friday before a cold front provides relief for the weekend.