An updated tornado warning was issued by the National Weather Service on Tuesday at 5:52 p.m. in effect until 6:30 p.m. for Bucks, Montgomery and Philadelphia counties.

A tornado watch issued earlier Wednesday evening for Rocky View County, including Airdrie and Crossfield, was lifted just before 8 p.m., according to Environment Canada. The watch had been issued at 5:25 p.

On Tuesday at 5:19 p.m. the National Weather Service released a tornado warning in effect until 5:45 p.m. for Bucks County.

In Bowie, Maryland, a breathtaking video of an ominous shelf cloud emerged on social media. Shelf clouds, which often appear along the leading edge of thunderstorms, form when cool air rushes out from a storm and forces the warm, moist air ahead of it to rise, creating a distinctive, rolling cloud formation, The Washington Post reported.

A tornado watch issued earlier Wednesday evening for Rocky View County, including Airdrie and Crossfield, was lifted just before 8 p.m., according to Environment Canada. The watch had been issued at 5:25 p.

Environment and Climate Change Canada has issued a tornado watch for Cochrane and surrounding areas as conditions are favourable for the development of severe thunderstorms that could produce isolated tornadoes.

Another flood watch is in effect from 5 p.m. Wednesday to 2 a.m. Thursday, with another round of potent thunderstorms expected later Thursday.

An updated tornado warning was released by the NWS Raleigh NC on Sunday at 6:58 p.m. in effect until 7:30 p.m. for Alamance and Orange counties.

A tornado warning has been issued for Washington DC, Montgomery County, and Prince George’s County as a severe storm sweeps the region. The storm, capable of producing a tornado, was last tracked near Howard University around 6:42 PM EDT,

Crews are out Tuesday morning cleaning up debris after a possible tornado affected parts of Seneca County and Ontario County. Footage submitted to News 8 WROC Monday evening shows a possible tornado in the town of Romulus in Seneca County.