Slow-moving showers and storms set to drop 1 to 3 inches of rain across Treasure Coast

Scattered showers and storms dropping 1 to 3 inches of rain, possibly 4-plus inches in isolated areas, are expected as slow-moving sea breeze thunderstorms roll across the Treasure Coast into the weekend, a weather forecaster said.

There's a 50 to 60 percent chance of showers and storms in Indian River, St. Lucie and Martin counties, said meteorologist Kole Fehling with the National Weather Service Forecast Office in Melbourne.

“These storms are going to be really slow movers,” said Fehling, describing some as, “maybe stationary. They’ll be able to drop a lot of rainfall in one spot.”

Flooding in some low-lying areas across the Treasure Coast is possible through Saturday, he said.

The weather pattern is part of what Fehling said was a normal seasonal shift to “wet-season thunderstorms.”

But these particular storms have a “little higher chance of flooding” due to their slow movement, he said.

By Sunday, Fehling said drier air would make its way into the East Central Florida region, bringing less chances for rain or storms.

“The rain chances after the weekend … really start to lower,” he said.

Temperatures will remain near normal with highs in the mid-80s for the most part. Highs could approach the 90s by mid-week.

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The Treasure Coast is expected to see little to no effects from Tropical Storm Arlene, which formed as a depression on the Gulf Coast Thursday, the first day of the Atlantic hurricane season, and became Arlene Friday afternoon.

By Friday, that system was moving south at 5 mph at its nearest point still hundreds of miles west of the Treasure Coast in the Gulf. It wasn't expected to remain a tropical storm for long.

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Arlene was forecast to weaken by Friday night and become a remnant low on Saturday, dissipating by early Sunday.

Corey Arwood is a breaking news reporter for TCPalm. Follow Corey on Twitter @coreyarwood, or reach him by phone at 772-978-2246.

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