DC parade canceled as excessive heat further upends America 250 festivities

US Independence Day Parade Canceled in DC Due to Extreme Heat

America’s 250th birthday also marks the final stretch of one of the most intense eastern US heat waves in years — one made worse by climate change — and it could fuel an added storm threat as the nation gathers to celebrate.

Several visitors to Washington, D.C.'s Great American State Fair required life support and were hospitalized as extreme heat swept across the capital on Friday, prompting organizers to temporarily shut down the event amid triple-digit temperatures.

A powerful heat dome has brought dangerously high temperatures and humidity across the central and eastern United States and parts of southern Canada.