National Weather Service

A storm system developing in the Atlantic is forecast to bring tropical storm conditions to parts of the U.S. East Coast as the fall season officially begins.

The two victims can be seen collapsing just before the person filming runs and flees the scene.

Hurricane Lee is expected to bring flash floods and storm conditions to parts of the U.S. and Canada this weekend.

Entire roadways were submerged and several residents were evacuated as parts of northern Worcester County faced a flash flood emergency.

Several thunderstorms passed over parts of North and South Dakota as well as Missouri and Minnesota, bringing heavy rainfall and high wind speeds.

Flash flooding warnings were in place ahead of the weekend, with residents bracing for more rainfall.

Swathes of the East Coast states are at risk of flash flooding after the tropical storm made landfall, with eastern North Carolina the likeliest to be deluged.

The occupants of a plane evacuating from MacDill Air Force Base due to Hurricane Idalia recorded a jaw-dropping video of the "lightning-like" rarity.

Idalia was forecast to become a major hurricane over the northeastern Gulf of Mexico by early Wednesday, according to the National Hurricane Center.

Several individuals are missing after being washed away by floodwater, as a deluge of post-cyclone rain hits Sin City.

Mudflow caused by Tropical Storm Hilary inundated a neighborhood in Cathedral City, requiring residents to be rescued.

As Hilary pours over California, three more cyclones are moving westwards in the Atlantic Ocean, with the potential for a fourth in the Gulf of Mexico.

Tropical Storm Hilary led to "the most significant rainfall over a 60-minute period anytime in the history of Palm Springs," Governor Gavin Newsom said Sunday.

Forecasters said "catastrophic and life-threatening" flooding is likely through August 22 as Tropical Storm Hilary hurtles across the southwestern U.S.

"Widespread & possibly destructive flash flooding is possible," Dr. Daniel Swain wrote about the incoming storm.

Parts of southern California could be hit with up to 10-15 inches of rain at the storm passes.

Hurricane Hilary is expected to hit southern California by Sunday night, though by this point it is forecast to have been reduced to tropical storm strength.

Southern California could be hit with the first tropical storm to make landfall since 1997 later this week, as Storm Hilary creeps up the Mexican coast.

Wind advisories have been canceled Thursday as weather agencies expect a more typical dry pattern to emerge.

An imposing dust cloud arched over the state capital on Wednesday night, brought on by the first serious rain storm after weeks of baking heat.

At least 13 people were injured and nearly 90 structures were damaged by the "severe" EF-3 tornado, a local official confirmed to Newsweek.

"Any type of extreme heat that is going to occur might catch people off guard," one medical expert told Newsweek.

One Twitter user shared an incredible clip of a tornado with a rainbow near Elgin, Illinois.

The latest update by the National Weather Service says flooding is occurring in Burlington, the state capital, Montpelier, and Middlebury, among other places.

Residents have been trapped in their homes and cars are being washed from the road amid potentially "catastrophic" flooding.

A giant blue blip heading for Tooele, Utah, had residents fearing a massive grasshopper swarm of biblical proportions.

Heavy rain produced "life-threatening flash flooding" on Sunday across New York's Hudson Valley region.

A deadly heat wave in Texas has entered its third week now, with high temperatures expected to expand to other states in the coming days.

National Weather Service Indianapolis confirmed to Newsweek in an email that two tornadoes touched down.

Two Chicago suburbs are now under Tier 1 water restrictions after a lack of rain parched the city.