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Memorial Day rain chance: 90 percent for South Florida

Tropical moisture will bring thunderstorms, persistent downpours across Miami-Dade, Broward

PEMBROKE PARK, Fla. – Forget the outdoor barbecue, Memorial Day is going to be a washout. Chance of rain? 90 percent. The National Weather Service in Miami has a flood watch in effect for much of South Florida from Sunday through Tuesday.

Torrential rainfall is possible in the strongest storms, which will lead to possible flooding of poor drainage areas, small streams, creeks, and canals.

A few strong storms are possible with gusty winds and lightning.

(Watch Luke Dorris’ forecast below.)

Check the radar and updates with Local 10′s Weather Authority.

Monday morning continues showers from Sunday and there’s a chance of thunderstorms in the morning, then showers with thunderstorms are likely in the afternoon. On Monday night, things pretty much continue with showers and a slight chance of thunderstorms, then showers likely with another slight chance of thunderstorms after midnight. Chance of rain is 80 percent Monday night.

And Tuesday, the first day that Broward County re-opens its beaches since the mid-March shutdown over coronavirus, the National Weather Service in Miami says there’s a 70 percent chance of rain. Forecast? Showers likely with a chance of thunderstorms.

There’s an Areal Flood Watch for all of South Florida until 8 p.m. Monday evening. After all is said and done, 3-5″ of rain are expected across South Florida.

Keys under Marginal Risk for severe weather
Keys under Marginal Risk for severe weather

A marginal risk of severe weather extends to encompass all of South Florida on Monday. Localized spots of flooding are likely as well as wind gusts near 40mph at times in these storms. Brief rotation sparking funnel clouds or water spouts is also possible.

Marginal risk for all of south florida Monday
Marginal risk for all of south florida Monday

By Tuesday, this area of low pressure will begin to move into the Atlantic waters and away from South Florida. We will start seeing a slight decrease in shower coverage on Tuesday, with a more typical sea-breeze pattern moving in for the second half of the week.