A photo of a lone soldier placing a flag during torrential rain at the Tomb of the Unknown Soldier in Arlington, Va., was shared by the Army ahead of the Memorial Day weekend.

The photo was taken during Thursday's massive storm that was accompanied by a tornado warning in the D.C. area, where the tomb and Arlington National Cemetery are located.

"Visitors ran for cover. News media piled into vehicles together. The streets flooded. Trees as old as the cemetery itself broke at the trunk and came crashing down. But America's Regiment endured," the Third U.S. Infantry Regiment posted on Facebook, with photos.

The Third Regiment, or Old Guard, plants flags at Arlington National Cemetery on the Thursday before the holiday as part of a tradition called "flags in."

President Trump participated Thursday in placing flags at headstones before departing on a flight for a four-day visit to Japan.

On Saturday, the U.S. Army tweeted out the photo of the lone sentinel planting flags in the deluge.