On Monday at 1:52 p.m. an extreme heat warning was issued by the National Weather Service in effect until Tuesday at 10 p.m.

On Tuesday at 4:18 a.m. the NWS Medford OR issued an extreme heat warning in effect until Wednesday at 2 a.m. for Western ...

An extreme heat warning is issued when dangerous heat is happening or about to happen. Florida has different criteria, depending on the region, for when the National Weather Service will issue an ...