A Florida sheriff has warned people not to shoot their guns into Hurricane Irma after more than tens of thousands of people said they were "attending" a Facebook event encouraging Floridians to do so.

"To clarify, DO NOT shoot weapons @ #Irma. You won't make it turn around & it will have very dangerous side effects," the Pasco County Sheriff's Office, located north of Tampa, wrote on Twitter Saturday.

The warning follows more than 26,000 people saying they would attending a Facebook event called "Shoot At Hurricane Irma," with about 53,000 more indicating they were "interested."

"YO SO THIS GOOFY," event hosts Ryon Edwards and Zeke Murphy wrote on the group's page. "LOOKING WINDY HEADASS NAMED IRMA SAID THEY PULLING UP ON US, LETS SHOW IRMA THAT WE SHOOT FIRST."

Edwards, 22, said he started the event out of "a combination of stress and boredom."

"The response is a complete and total surprise to me," Edwards told the BBC. "I never envisioned this event becoming some kind of crazy idea larger than myself. It has become something a little out of my control."

Hurricane Irma made landfall over the Florida Keys on Sunday as a Category 4 hurricane, with the storm surge and hurricane-force winds expected to cause havoc all over the Sunshine State.