Original story posted Sunday afternoon...

A tropical weather system is likely to produce heavy rain and gusty winds across South Florida on Labor Day, before moving into the Gulf of Mexico where it could intensify into a tropical storm.

  1. Likely develops near South Florida Monday
  2. Heavy rain, gusty winds, waterspouts
  3. No impacts expected near/north of I-4

On Sunday afternoon, the weather feature of interest was located near the southern Bahamas and approaching the Straits of Florida just north of Cuba, producing a large area of showers and thunderstorms. The convection was easily seen from space on the GOES 16 visible satellite imagery, which was largely enhanced by the spin of a nearby upper-level area of low pressure.

Impressive convection near #Invest91 this morning. Working on a complete #Florida forecast...

Heavy rain for sure in #SoFla starting tonight. Daily thunderstorm enhancement rest of the state Mon-Tue. Possible heavy rain in #FLPanhandle Tuesday.

GIF via @CODMeteorology ... pic.twitter.com/P0OujsNDqY

— Jeff Huffman (@HuffmanHeadsUp) September 2, 2018


In its 2 pm tropical outlook, the National Hurricane Center said the tropical wave now has a “high chance” of developing near South Florida Monday or in the Gulf of Mexico Tuesday. On its way there, the disturbance, known to meteorologists as “Invest 91,” will approach South Florida Sunday Night and Monday.To most Floridians across central and northern sections of the state, the presence of a nearby tropical system will likely go unnoticed. A slight uptick in the daily shower and thunderstorm activity is possible Monday and Tuesday, both in terms of intensity and coverage. There might be an increase in onshore winds along the Space Coast and First Coast early in the week that leads to an elevated risk or rip currents. However, significant impacts from Invest 91 are locations near and north of I-4 or east of Panama City at the present time.

The tropical system will continue moving northwest toward the central Gulf Coast states Wednesday, allowing normal weather conditions to return to much of Florida by Thursday. However, the tropical Atlantic is likely to stay active in the coming weeks as multiple systems move across the Atlantic Ocean, including newly formed Tropical Storm Florence. As the heart of hurricane season approaches, Floridians are urged to stay persistent in their awareness and vigilant in their preparations.

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