The phenomenon, which has left parts of the bay as dry as a beach, is caused by strong offshore winds from the historically powerful storm.
PHOTOS: Hurricane Irma lashes Florida
The Jacksonville Sheriff's Office posted this photo on Monday for those thinking of driving around, writing, ''#JSO recommends not.''none
Streets are flooded and scattered with debris in Jacksonville, Fla.none
Former NASCAR driver Sean Murphy posted this with a caption that read, in part, ''She's tattered, but we're still standing. Nothing muffles the American Spirit.''none
A toppled gas station is shown in Brunswick, Georgia on Monday.none
Flood waters lap up by the doors of a home in Charleston, S.C. on Monday.none
A National Guard soldier sang ''Happy Birthday'' to Shelby Johnson, 80, while passing out cookies.none
A DoubleTree hotel by the Orlando Airport had part of its side ripped off by Hurricane Irma.none
Joe Murphy wipes the sweat off his face while standing in knee deep water from Tropical Storm Irma outside his house, Monday, Sept., 11, 2017, on Tybee Island, Ga.none
The National Guard, along with Orange County Fire and Rescue, were out rescuing pets in the storm.none
The aftermath of Irma is shown in the inland city of Arcadia, Fla.none
A baby girl was delivered at home in Coral Springs, Fla. during Hurricane Irma with help from fire fighters and police officers.none
A road sign was toppled by Irma at Disney's Magic Kingdom in Orlando.none
Damage is shown near the ''World's Most Famous Beach'' sign in Daytona Beach on Monday.none
''The big slide at Daytona Lagoon didn't fare so well,'' wrote the city's police department.none
Ponce Inlet boardwalk near Daytona Beach was destroyed by the storm.none
An aerial photo shows flooding in the Orlo Vista area of Orange County.none
A van remains in a sinkhole in Winter Springs, Fla., during Hurricane Irma. The glass on the ground (left) is the window that the driver punched out to escape.none
Palm trees stand ripped of their fronds in the aftermath of Hurricane Irma in Marco Island, Fla., Monday, Sept. 11, 2017Creative Content
Floodwaters surround a marina in the aftermath of Hurricane Irma, Monday, Sept. 11, 2017, in Key Largo, Fla.Creative Content
Kelly McClenthen returns to see the flood damage to her home with her boyfriend Daniel Harrison in the aftermath of Hurricane Irma in Bonita Springs, Fla., Monday, Sept. 11, 2017.Creative Content
No injuries were reported when a massive tree fell on a home in Lakeland, Fla. Eight people were displaced.none
No injuries were reported when a massive tree fell on a home in Lakeland, Fla. Eight people were displaced.none
The Daytona Beach Fire Department posted this photo to warn residents to stay inside early Monday morning.none
A car sits abandoned in storm surge along N. Fort Lauderdale Beach Boulevard as Hurricane Irma hits the southern part of the state September 10, 2017 in Fort Lauderdale, Florida.none
A car sits abandoned in storm surge along N. Fort Lauderdale Beach Boulevard as Hurricane Irma hits the southern part of the state September 10, 2017 in Fort Lauderdale, Florida.none
Residents inspect the extreme receding water in Tampa Bay ahead of Hurricane Irma on September 10, 2017 in Tampa, Florida.none
Fallen trees blocks a parking lot along North Federal Highway 1 as tropical storm strength winds produced by Hurricane Irma slam into the southern part of the state on Sunday.none
''Using satellite before pictures @CityofMiamiFire was able to confirm a roof peeled off a two story apt Bldg at 2642 NE 5th Ave in #Miami,'' the city posted on Sunday.none
People walk on the dry bay in Tampa on Sunday. Strong winds from Irma caused the waters to recede while the eye was still hours from reaching Tampa.none
Stranded motorists try to get back in their car after a breakdown as Hurricane Irma bears down on the Florida Keys, Sunday, Sept. 10, 2017, in Hialeah, Fla.none
A fallen tree blocks a street in Miami Springs, Fla., on Sunday, Sept. 10, 2017.none
An Egyptian Goose stands in the middle of a debris-strewn road as Hurricane Irma passes by, Sunday, Sept. 10, 2017, in Coral Gables, Fla.none
Sailboats moored near Watson Island ride out the winds and waves as Hurricane Irma passes by, Sunday, Sept. 10, 2017, in Miami Beach, Fla.none
Debris fills the tree-lined streets of a residential area, Sunday, Sept. 10, 2017, in Coral Gables, Fla.none
A news crew sets up to film increasing winds and surf in advance of Hurricane Irma, in Sanibel Island, Fla., Sunday, Sept. 10, 2017.none
Recently planted palm trees lie strewn across the road as Hurricane Irma passes by, Sunday, Sept. 10, 2017, in Miami Beach, Fla.none
High winds blow through Brickell Avenue as Hurricane Irma arrives on September 10, 2017 in Miami, Florida.none
''There seems to be some sort of tarp that is blowing off the top of the Heat's practice facility,'' wrote Will Manso of Miami.none
A large crane snapped from the force of the storm in Miami.none
This is a screenshot from a video taken by a Key West Naval Air Station, who wrote, ''Rough conditions north side of #KeyWest from #Irma. Our building is strong. Still no power.'none
Trees and branches are seen after being knocked down by the high winds as hurricane Irma arrives on September 10, 2017 in Miami, Florida.none
Empty roads are seen as the outer bands of Hurricane Irma arrive on Saturday September 09, 2017 in Miami, FL.none
Evacuees stand in line to enter the Germain Arena, which is being used as a fallout shelter, in advance of Hurricane Irma, in Estero, Fla., Saturday, Sept. 9, 2017.Creative Content
People stand next to palm trees as they look at churning waves and high winds along Hollywood Beach, Fla., on Saturday, Sept. 9, 2017.Creative Content
People arrive, many with their animals, a shelter at Alico Arena where thousands of Floridians are hoping to ride out Hurricane Irma on September 9, 2017 in Fort Myers, Florida.Creative Content
Danny Calvo secures lumber he intends to use to board up his home before evacuating as residents and visitors in Florida prepare for, and evacuate ahead of, Hurricane Irma.Creative Content
Tampa residents load sandbags with beach sand at Gandy Beach as residents and visitors in Florida prepare for, and evacuate ahead of, Hurricane Irma on September 09, 2017.Creative Content
James Sampero waits for the correct currents to head out and surf in the churning ocean as Hurricane Irma approaches on September 9, 2017 in Miami Beach, Florida.Creative Content
Evacuees are moved to another building with more bathrooms while sheltering at Florida International University ahead of Hurricane Irma in Miami, Saturday, Sept. 9, 2017.Creative Content
Flamingos at Zoo Miami, are shown in a temporary enclosure in a hurricane resistant structure within the zoo, Saturday, Sept. 9, 2017 in Miami.Creative Content
People walk down the street as winds and rain begin to hit as outer bands of Hurricane Irma arrive in Miami Beach, Florida, September 9, 2017.Creative Content
People gather around the beach in Naples before the arrival of Hurricane Irma into Southwest Florida on September 9, 2017 in Naples, Florida.Creative Content
The skyline is seen as the outerbands of Hurricane Irma start to reach Florida on September 9, 2017 in Miami, Florida.Creative Content
Brian Collins wheels cut wood he plans to use to protect the thrid floor of his home past empty plywood racks ahead of the arrival of Hurricane Irma at Lowes September 9, 2017.Creative Content
Storm clouds are seen over Fisher Island as Hurricane Irma approaches on September 9, 2017 in Miami Beach, Florida.Creative Content
Caleb Rich and his wife Rachel Rich put metal shutters over windows on their home ahead of the arrival of Hurricane Irma September 9, 2017 in Daytona Beach, Florida.Creative Content
Police enter one the few remaining businesses open in Naples before the arrival of Hurricane Irma into Southwest Florida on September 9, 2017 in Naples, Florida.Creative Content
Video taken by ABC affiliate WFTS shows that people were out walking on the dry bay ahead of the 6 p.m. curfew.
Officials have urged residents to shelter in place during the dangerous storm. The eye of the storm is expected to pass over Tampa or nearby sometime late Sunday or early Monday.