Marine Tropical Depression — Jupiter Inlet To Deerfield Beach Fl 20 To 60nm, Atlantic South

2020-09-12 to 2020-09-13 · Jupiter Inlet To Deerfield Beach Fl 20 To 60nm, Atlantic South

Event narrative

Sustained tropical depression force winds over the offshore waters were probably in the 25 to 33 knot range based on data from hurricane hunter aircraft, with gusts possibly as high as 40 to 45 knots.

Wider weather episode

A low pressure system, turned tropical disturbance, moving across the western Atlantic and over the Bahamas abruptly formed into Tropical Depression Nineteen on September 11th. Tropical Depression Nineteen gradually continued westward and the center passed about 10 to 20 miles SSE of Miami, Florida during the morning of September 12th with a minimum central pressure of 1007 mb and maximum sustained winds of 35 mph. As Tropical Depression Nineteen moved westward over the South Florida peninsula, it continued to strengthen into a Tropical Storm known as Tropical Storm Sally. Lowest surface pressure recorded over the South Florida Atlantic Coast was 1005.5 mb at Fowey Rocks and maximum sustained winds of 46 mph/40 knots at Fowey Rocks on September 12.

Although the effects from Tropical Depression Nineteen were generally minor for wind, there were sustained Tropical Storm force winds across Biscayne Bay and the near-shore Atlantic waters with sustained Tropical Depression force winds over the outer Atlantic waters, which created hazardous marine conditions.

Source: NOAA Storm Events Database, event_id 918365. Narrative written by the NWS forecast office that issued the report.