City of Key Colony Beach Official City Website

Weather Brief (Final) – Hurricane Idalia – 30 AUG 2023

From the National Weather Service:

Good morning,

Attached is our final weather brief concerning Hurricane Idalia for the Florida Keys of Monroe County.  Idalia made landfall around 7:45 am this morning near Keaton Beach, Florida, as a category 3 hurricane (125 mph winds).

This briefing will be posted at

through early this afternoon.

A Coastal Flood Warning remains in effect for the Lower Florida Keys, and a Coastal Flood Advisory remains in effect for the Middle Florida Keys

Saltwater flooding of low elevation streets, overflowing storm drains, and some seawalls and docks will be overtopped. Due to wave action, saltwater overwash can be expected along the oceanside of the Lower and Middle Keys around this morning’s high tide.

Coastal Flooding is expected to abate later this afternoon as the high spring tide ebbs and the lower low tide of the day approaches.

While the coastal flooding is expected to peak Wednesday morning and south to southwest winds decrease later Wednesday through Thursday, minor coastal flooding will likely linger through the end of the week and become more prominent on the gulfside/bayside.

A Wind Advisory is in effect this morning for the Lower Florida Keys. South to southwest winds sustained at 20 to 30 mph with gusts over 35 mph are expected to decrease to sustained 15 to 20 mph with gusts near 25 mph during the afternoon.