Wednesday’s flood watch a result of record-setting weekend rains

South Florida’s record-setting weekend rains and saturated grounds have had a lasting impact, and Broward, Palm Beach and Miami-Dade counties are again under an excessive rainfall risk until 8 a.m. Thursday, according to the National Weather Service.

Also, there’s a flood watch Wednesday for the eastern portions of Broward and Miami-Dade counties.

Some areas in the eastern half of Broward County and the northeast portion of Miami-Dade County received between 11 and 15 inches of rain Saturday, according to the National Weather Service.

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“Anything additional in that area could be concerning,” said NWS meteorologist George Rizzuto.

Wednesday’s forecast calls for seasonal afternoon rains, some of which could have strong wind gusts and frequent lightning.

The record rainfalls experienced Saturday were ushered in by the low-pressure system that eventually became Tropical Storm Alex after it entered the Atlantic Ocean.

• Fort Lauderdale received a record 6.55 inches of rain Saturday, shattering the previous mark of 2.57 inches for June 4 established in 1968.
• West Palm Beach received a record 4.52 inches of rain Saturday, shattering the previous mark of 2.62 for June 4 established in 1978.
• Miami received a record 5.26 inches of rain Saturday, shattering the previous mark of 2.27 inches for June 4 established in 1959.

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Some areas in eastern Broward and Miami-Dade counties received double-digit rainfall totals Saturday, making them especially vulnerable for Wednesday’s expected afternoon rain.

The flood concerns could continue because Thursday’s forecast also calls for seasonal afternoon rains.

Chris Perkins can be reached at chperkins@sunsentinel.com.