Head’s up D.C. — or maybe heads down.

The U.S. Army and Air Force will be conducting an “emergency preparedness training exercise” on Thursday, flying helicopters over the D.C. region as low as 200 feet.

The exercises will take place throughout the day.

https://twitter.com/VOBOE/status/1395039298957844480

A U.S. Army spokesperson wrote in an email to DCist that the flyovers are a part of annual training that takes place around this time every year. They’re intended to continue “refining and improving the military’s ability to respond to natural and manmade disasters,” according to a U.S. Army statement.

For context on what a helicopter hovering 200 feet above the ground looks like (or sounds like), an investigation into the National Guard’s response to last summer’s protests confirmed that aircrew members flew a helicopter as low as 100 feet above a downtown D.C. street.

https://twitter.com/DaniellaCheslow/status/1267638389421072384?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1267638389421072384%7Ctwgr%5E%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fdcist.com%2Fstory%2F21%2F04%2F14%2Farmy-report-identifies-failures-in-use-of-helicopters-during-june-protests%2F

Around 1:50 this afternoon, you might also see (or hear) four fighter jets flying over D.C, heading to Langley Air Force base in Virginia.

After last month’s unexpected fighter jet flyover startled residents, warning in advance is now much appreciated.

This post has been updated with a statement from U.S. Army spokesperson.