A dramatic pattern flip is bringing summer-like heat to the region this week, with temperatures building toward near-record ...

A quiet weather pattern will continue through the rest of this week into the weekend. A trough in the jet stream aloft is ...

Omega Block pattern traps heat in the Plains and South this week while storms bring severe weather to the Central U.S. and rain to both coasts.

So far this year, the transition toward summer has been uneven — and sustained warmth may not arrive until mid-June.

It’s time to freshen up your Greek letter skills this week. What’s called an Omega block is going to develop this week across ...