Washington, D.C. is preparing for a large July 4th celebration. The event will mark America's 250th anniversary and is expected to draw crowds.

Rehearsal flyovers have already taken place, giving a glimpse of what the skies will look like on Independence Day. The celebration will also be marked by extreme heat and heightened security measures. Details of the security arrangements and heat precautions are not specified, but further information is available from CBS Texas.

For those interested in learning more about the July 4th celebrations in Washington, D.C., additional details can be found through CBS Texas, including information on the expanded security and extreme heat expected during the event.