SPRINGFIELD, Mo.- The Greene County Office of Emergency Management has confirmed what caused the loud boom heard over southwest Missouri late Monday morning.
According to officials, Boeing was running a test loop starting in St. Louis and made its way to the Ozarks.
The military aircraft reached a certain speed to create the sound.
On September 26, the Mountain Grove Fire Department reported that another sonic boom was heard in that area.
“Sonic boom is an impulsive noise similar to thunder. It is caused by an object moving faster than sound — about 750 mph. An aircraft traveling through the atmosphere continuously produces air-pressure waves,” the post states.
According to the fire department, the U.S. military has acknowledged the testing of a new jet called the F-15EX Strike Eagle released in April of 2021.
The fire department believes that is what caused the boom on Sunday.