Already, flash flood warnings have been issued in for central Miami-Dade's Homestead, Redlands, Florida City, and Naranja areas until 8:30 p.m. Saturday night. NWS expects 1-3" inches of rain on top of 3-5.5" already fallen, with street flooding already occurring.
Forecasters say heavy rainfall could lead to potential significant street and structural flooding throughout the coastal tri-county area, and minor flooding in ow-lying areas is possible across the interior of South Florida.
There is also a slight risk of severe thunderstorms over Miami-Dade, Broward, Palm Beach and mainland Monroe Counties, which would bring winds of up to 60 mph, occasional lightning strikes and hail.
Forecasters say a risk of tornados may develop Saturday night.