The National Weather Service issued a flood watch at 12:38 p.m. on Thursday valid from Saturday 2 p.m. until Monday 2 p.m. The watch is for the Missoula Area as ...

The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans.

Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains on the heels of weekend storms that pummeled the Eastern U.S. with floods, killing at ...

Multiple states were under winter storm warnings or winter weather advisories from the National Weather Service on Thursday ...

While Virginia and North Carolina were grappling with a snowstorm, an Arctic blast brought dangerously low temperatures to a ...

Officials urged people to stay off the roads Wednesday in portions of Virginia and North Carolina where a storm dropped heavy ...

While widespread flooding from melting snowpack is unlikely in the Gallatin Valley, there is a possibility of localized ...

More than 95 million people were facing gripping cold Tuesday as a polar vortex sent temperatures plunging to record levels, closing schools, bursting pipes and forcing communities to set up more ...

The Associated Press The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps ...

Temperatures will warm up this weekend while an atmospheric river could bring in more water to western Montana.

After enduring brutally cold temperatures at times during the month, Billings will try to finally climb back above the ...