The National Weather Service issued an extreme heat warning for a second day as the heat index surpasses 100. See how hot it ...

The National Weather Service issued an extreme heat warning nearly all of Delaware lasting through June 25. See how hot ...

Each local National Weather Service office issues 3 different heat alerts to classify the appropriate level of risk posed by ...

The National Weather Service office in Wakefield says 100-degree temperatures will feel at least 10 degrees hotter, thanks to humidity levels ...

Flash flooding, possible severe storms and heat risks will be in effect for Delaware as the remnants of tropical cyclone ...

The criteria to issue a heat advisory, excessive heat watch and excessive heat warning is not clear-cut in NJ. Here's maps, ...

The National Weather Service has issued an extreme heat warning for nearly all of Delaware through Wednesday, June 25. That warning is issued when extremely dangerous heat is expected or occurring.

With a heat wave causing excessive heat warnings in Delaware, you'll hear a lot about the heat index this week. What to know ...

A heat advisory is issued when the heat index values will be greater than 105 degrees for two hours. Excessive heat warnings are issued when heat index values over 110 degrees are expected.

The National Weather Service has issued an extreme heat warning for New Castle County that started Sunday, June 22 that will last through 8 p.m. Wednesday, June 25.