The Latest Breaking News from the National Weather Service

LAS VEGAS — Sweltering high summer temperatures in the Las Vegas Valley could tie or exceed records on Saturday and Sunday and an excessive heat warning for the area will remain in effect until Tuesday, according to the National Weather Service.

Air-conditioned casinos offer a welcome respite for people visiting Las Vegas as the city is hit by an intense heat wave that's put nearly one-third of Americans under heat advisories and warnings

Recent floods in the Northeast highlight the dangers of flash floods, prompting the need for preparedness and evacuation.

The National Weather Service says a tornado outbreak in the Chicago area this week produced at least 11 twisters

Weather forecasts have gotten quite good over the years, but their temperatures aren’t always spot on — and the result when they underplay extremes can be lethal. Even a 1-degree difference in a forecast’s accuracy can be the difference between life and death, our research shows.

Over a third of Americans under extreme heat warnings as Vermont, still recovering from historic flooding, prepares for more storms

In the daily heat records race. it’s a marathon. And Marathon is in for the win.

Eleven tornadoes have been confirmed from Wednesday’s storms. An EF1 twister tore through Burr Ridge with winds up to 110 mph. Two tornadoes were reported near O’Hare.

Death Valley is expected to hit 123 degrees.

WASHINGTON: Across the US, 103 million people, or just over 30% of the population, from Oregon to Florida are under excessive heat warnings, watches and advisories, according to the National Weather Service.

Latest storm warning comes just days after areas of Vermont and New York were hit with flash flooding, raising concerns over more damage