Marine Tropical Storm — Deerfield Beach To Ocean Reef Fl 20 To 60nm, Atlantic South

2020-08-01 to 2020-08-02 · Deerfield Beach To Ocean Reef Fl 20 To 60nm, Atlantic South

Event narrative

Sustained tropical storm force winds over the offshore waters were probably in the 40-50 knot range based on data from hurricane hunter aircraft, with gusts possibly as high as 60 knots.

Wider weather episode

A low pressure system moving across the tropical Atlantic into the eastern Caribbean Sea formed into Tropical Storm Isaias on July 28th. While the system briefly became a hurricane near Great Inagua Island on July 30th, it was downgraded back to a Tropical Storm as it moved over Andros Island on August 1st with a minimum central pressure of 993 mb. Isaias gradually turned to the N-NW and the center passed about 30-40 miles east of the Palm Beach County coast during the morning of August 2nd with a minimum central pressure of 995 mb and maximum sustained winds of 65 to 70 mph. Lowest surface pressure measured along the coast of South Florida was 1003.1 mb at Lake Worth Pier on August 2nd. At Settlement Point/West End, Grand Bahama Island, lowest measured surface pressure was 1000.5 mb on August 2nd.

Although the effects from Tropical Storm Isaias were fairly minor for South Florida, there were sustained Tropical Storm force winds over the Atlantic waters and Biscayne Bay which created hazardous marine conditions.

Source: NOAA Storm Events Database, event_id 913998. Narrative written by the NWS forecast office that issued the report.