Severe thunderstorms swept through Washington DC on Saturday, forcing organisers to evacuate thousands of attendees from the National Mall during United States Semiquincentennial celebrations marking 250 years of American independence — an event months in the making that President Donald Trump had vowed to attend regardless of the conditions.

Evacuation Orders Issued as Storms Close In

With dangerous weather building over the capital, event organisers directed the large crowds gathered on the National Mall to seek shelter in nearby museums and federal buildings. Freedom 250 spokesperson Danielle Alvarez urged attendees to move to safety and promised updates on when programming would resume and doors would reopen.

The disruption caused lengthy delays to what had been planned as a landmark evening of celebration. Some attendees were unable to return to the venue after the evacuation, missing the president's address entirely.

Trump Vows to Speak "No Matter What"

Despite the chaos, Trump remained defiant, taking to Truth Social to reassure supporters he would not be deterred by the weather. "Storms bring luck to whatever the occasion. They also make events a little bit more exciting!" he wrote, adding that he was prepared to wait until 2am if necessary to deliver his speech.

Drawing a comparison to a recent UFC event that had been forecast for heavy rain but remained dry, Trump expressed confidence the storms would pass. "It's not going to stop us either! I'm not going to let some rain stop our 250th," he wrote, signing off with "God Bless America."

After the lengthy delay, Trump eventually took to the stage to address those who had stayed. "If you think that was easy, it wasn't. And I want to thank everybody because they did the right thing," he told the crowd, acknowledging those who had been unable to return after sheltering from the storm.

Trump's Speech: Space, Freedom and a Swipe at Communism

When he finally addressed the gathered crowd, Trump struck a wide-ranging tone. He described the United States as the "hope, the promise, the light, and the glory among all of the nations of the world" across its 250 years of existence.

The president used the occasion to attack communism directly, declaring: "Communism is a loser, and it always will be," and adding that the American flag had cast the hammer and sickle "into oblivion before, and we will do it again if necessary." He contrasted that with what he described as American values: freedom of speech, freedom of religion, and equal justice under the law.

Trump also spoke of the United States' ambitions in space, saying the country was now leading China and Russia "by giant steps" and that American astronauts would be heading to Mars in the near future. "We're going to do the moon, and we're going to go from there, we're going to go to Mars," he said. He closed his remarks by speaking of the "dawn of the golden age of America."

Celebrations Across the Country Pushed On

While Washington bore the brunt of the disruption, fireworks plans in other major cities were still moving ahead. In New York, tall ships passed the Statue of Liberty earlier in the day, echoing the fanfare that marked America's 200th anniversary celebrations in 1976. Chicago was also preparing its own displays.

Across much of the East Coast, the celebrations had already faced pressure from sweltering heat that approached and in many cases exceeded extreme thresholds, forcing organisers in various cities to adjust or cancel activities. For more on the broader challenges facing the anniversary events, see our coverage of the storms, heat and other disruptions that marked America's chaotic 250th anniversary.

Trump had been at Mount Rushmore on Friday ahead of the Washington celebrations before travelling to the capital for the main event.