Severe Weather

The father was swimming and boating with his 17-year-old son this weekend when thunderstorms impacted Willard Bay State Park near Eagle Beach in Utah, authorities said.

Debby was downgraded to a post-tropical storm Friday, but flooding and severe storm threats are still possible for some regions of the Northeast this weekend.

Last year Earth was 2.66 degrees warmer than it was before pre-industrial times. It may sound insignificant, but it can be harmful to human health.

Video from the National Weather Service Buffalo office shows the vortex spinning in Lake Erie and then coming onshore in LaSalle Park. According to Erie County, the waterspout continued onto Niagara Street where it ripped off the roof of a building.

Death Valley experienced its warmest month on record with an average temperature of 108.5 degrees.

Bill Brucks of Cherry Grove Beach, South Carolina, had his hand on the refrigerator door when a bolt of lightning struck his home and electrified him.

On the evening of July 15, a powerful complex of thunderstorms swept through Chicagoland, producing widespread damaging winds and a record-breaking amount of tornadoes.

Cooling centers opened across Chicago starting Monday as the city braces for a week-long heatwave.  

Officials said the temperature got to 106 degrees.

The Death Valley tourist burned his feet walking barefoot on the popular Mesquite Flat Sand Dunes, where temperatures exceeded 123 degrees F, park rangers said.

The National Weather Service confirmed Friday that two more tornadoes touched down in the Chicago area during Monday night's derecho.