ORLANDO, Fla. — The first tropical threat of Florida’s hurricane season inundated the southern part of the state, leaving behind flooded streets, motorists calling for help from stranded cars and even an overflow of sewage. .

In Miami, drivers faced driving rain and impassable streets that disrupted the city and surrounding areas throughout Saturday. The city’s fire department responded to several people caught in cars amid rising waters, rescuing residents from flooded areas and getting them to higher ground. Six ocean-going vehicles fitted with gigantic tires were deployed in the city, the department said on Twitter.

Winds of 40 miles per hour did not reach the threshold necessary for the system to be classified as Tropical Storm Alex, but they threw water into the downtown area, which brushed against bags of sand and door frames.

The storm brought more than 10 inches of rain to Miami over a 72-hour period, according to AccuWeather. Key Largo, about 70 miles south of the city, received 11 inches, and Biscayne Park, north of Miami, was hit with 11.6.

The storm spilled 310 million gallons of sewage and rainwater into the Miami-Dade County Wastewater Treatment Plant, more than double the average daily limit, according to the county. The overflow had “the potential to mix with floodwater from the facility and flow to adjacent surface waters,” the county said in a statement.

“Mother Nature has flooded the system,” said Jennifer Messemer, spokeswoman for the Miami-Dade County Water and Sewerage Department.

The county issued a no-swimming notice as a precaution, also advising against fishing and boating. He also asked residents to reduce their water use “as much as possible” until the flooding subsides.

Flooding was also reported in communities outside of Miami, including Hialeah and Hollywood, as well as in Naples on the Gulf Coast. Late Saturday afternoon, fire trucks in Coral Gables, west of Miami, prepared an effort to clean up flooded blocks in that city, a process officials say could take up to sunday.

However, power outages did not increase after the storm. On Saturday morning, Miami-Dade County recorded 4,083 outages according to PowerOutage.us, although that number had fallen to 3,111 by early afternoon.

By noon, all tropical storm warnings were canceled for most of southwest Florida as the storm pounded the Treasure Coast in the southeast region, according to the National Weather Service.

In Key Largo, a moored 25-foot boat sank after being filled with rainwater, according to Key Largo Fire Department spokesman David Garrido. However, there was no lingering power loss – just a few downed trees.

Meteorologists said that although the storm never fully organized as it moved from the Gulf of Mexico towards the Florida Keys, it could still develop into a tropical storm as it leaves the Atlantic coast. And Floridians know it doesn’t take a lot of storms to wreak havoc in Miami, especially on a weekend night when many people are away.

Goncalo Gil, 26, stayed indoors as the streets were clogged with water outside his apartment in Miami’s Brickell neighborhood. Mr Gil, a student pilot, who posted a video of flooded streets on Twitter, questioned whether the city’s flood prevention system, which included stormwater pumps and levees, had worked as intended . “From midnight everything was flooded, all the cars stalled,” he said.

Kash Kashmiri, 30, arrived at the store he runs, Total Nutrition, in Brickell at 10 a.m. and found water inside his sandbag driveway. He debated whether to allow a customer into the store and eventually offered to collect some products for him and conduct a cash transaction at the front door.

“It’s normal here for a heavy storm, you can expect some light flooding,” he said by phone. “Any type of tropical storm, you can expect flooding for sure.”

More than two hours into Mr Kashmiri’s shift, the rain started again and he noticed people in the area tying down furniture.

Warnings about continuing possible weather hazards remained for the weekend.

Early Saturday, the National Hurricane Center in Miami warned of ‘considerable flash and urban flooding’ in South Florida. Rainfall totals were expected to be extended as the storm was expected to move towards Bermuda, possibly causing strong currents along the Atlantic coast as it moved away from the mainland.

At the Clock Tower in Palm Beach, about 70 miles north of Miami, Matt Davies, 50, of Delray Beach called the storm system “surf weather.” Ten surfers and a paddle boarder braved the conditions to navigate the four-foot waves.

The forecast for Florida included the possibility of tornadoes over the southern part of the state through Saturday. The Hurricane Center also said some cities in the state could see storm surge of up to three feet.

People who live in flood-prone areas of South Florida should identify a safe place to go if the waters begin to rise and be careful not to cross standing water, said Maria Torres, spokeswoman for the National Hurricane Center. Friday.

“Turn around, don’t drown,” she said.

Still, the area was dotted with drivers trying their luck in the early morning and afternoon, even as downpours flooded the neighborhoods.

At an intersection in Little Havana in Miami, dozens of cars stopped at traffic lights to survey the flooded streets beyond. Most of the van drivers rode through the rising waters, sending white spray in all directions.

Drivers of smaller cars could be heard through open windows discussing with their passengers the likelihood of crossing or getting stuck with a flooded engine – the fate of many vehicles elsewhere in the region. Tow trucks were running all over the place, doing a quick activity.

“In which direction should I go?” a man in a small SUV asked a passerby. “I have to go to the liquor store.”

Regardless of their priorities, many drivers took to the streets as the storm began to ease in the afternoon, causing worse than usual traffic jams in slippery, flooded conditions.

“It’s like the Rio Grande,” said one woman as she surveyed two flooded blocks.

But not everyone was impressed with the effects of the storm. “It’s nothing,” said Luis Garay, a 64-year-old handyman who has lived in Miami for 25 years and remembers several hurricanes hitting his native Honduras when he still lived there. “We’ve been through much worse than that.”

Mr Garay blamed the flooded streets on sewers clogged with rubbish. “People throw their garbage everywhere and the city doesn’t always pick it up,” he said. “Now look at the mess.”

Nearby, a man on a bicycle was speeding up as the flood approached. “¡Hay que mojarse!” he said. (“You must get wet!”)

Concerns about hazardous weather in the Atlantic Ocean began this week, almost as hurricane season hits on June 1. Hurricane Agatha, the first named storm in the Eastern Pacific region, hit Mexico as a Category 2 storm with heavy rain and damaging winds. It killed at least nine people and left five others missing, the governor of the southern state of Oaxaca, Alejandro Murat, said friday morning.

Meteorologists are expecting an “above normal” Atlantic hurricane season, running through Nov. 30, with 14 to 21 named storms considered likely. Up to 10 of them are expected to reach hurricane strength.

Frances Robles, Alanis ThamesJane Smith and Jesus Jiménez contributed report.