Forecasters are warning of dangerous heat in the Tri-State Thursday.
The National Weather Service replaced its Heat Advisory with a more serious Excessive Heat Warning, after temperatures reached the 90’s and heat index factors topped 100 degrees by mid-morning.
The mercury was expected to flirt with triple digits this afternoon with heat indeces as high as 114.
Forecasters say the heat index will run at or above 100 degrees into the early evening.
The weather service says the hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely.
The very young, the elderly, those without air conditioning, and anyone participating in strenuous outdoor activities will be the most susceptible.
Forecasters also warn that car interiors can reach lethal temperatures in a matter of minutes.
If you are outdoors, you’re urged to take frequent breaks in air conditioning, drink plenty of non-alcoholic fluids, and check on vulnerable people -- like those without air conditioning or in poor health.