Marine Weather and Tide Forecast for Key Biscayne, FL

LONG TERM
(Tuesday night through next Sunday)
Issued at 212 PM EDT Mon Apr 21 2025

Models depict a busy weather pattern across much of the Nation to start the long term with a trough/low complex moving into the E CONUS and pushing further south the ridge across the region. But the ridge remains strong enough to keep SoFlo under overall subsidence, with model soundings still showing PWATs below or around 1 inch, and generally dry air above 850mb through Thursday morning. Therefore, dry and stable weather should continue through that time.

By Thursday afternoon and through Friday, ensembles and Euro guidance show fair agreement in having the aforementioned trough pushing the ridge further to the ENE of SoFlo while eroding it. This will allow for moisture to begin filtering into the area, especially with returning robust onshore flow/sea breeze circulations in the afternoon hours. Unfortunately, the air mass is not expected to modify enough to result in significant rain activity. Latest POps/Wx coverage remains in the 15-25% range Thursday and Friday, and 20-30% by Saturday. Can't rule out an isolated thunderstorm or two with daytime heating, and with sea breeze boundaries becoming the main focal point for taller/deeper convection.

Expect afternoon high temperatures to remain in the mid to upper 80s through much of SoFlo, except for a few interior locations potentially reaching the low 90s at times. Morning lows should remain in the mid-upper 60s inland, and upper 60s to low 70s near the coasts.

AVIATION
(06Z TAFS)
Issued at 108 AM EDT Tue Apr 22 2025

VFR will prevail through the TAF with moderate easterly flow continuing. A brief wind shift onshore will be likely at APF later this afternoon.

MARINE
Issued at 1206 PM EDT Mon Apr 21 2025

Cautionary conditions will persist through the remainder of the week across the Atlantic and Gulf waters. So while boating conditions are expected to slightly improve, they're expected to remain at least somewhat hazardous to small craft through the end of the week.

BEACHES
Issued at 1206 PM EDT Mon Apr 21 2025

Moderate easterly flow will continue through the week and will support a higher than usual risk for life threatening rip currents.
A High Rip Current Risk remains in effect today for the east coast of South Florida.

PRELIMINARY POINT TEMPS/POPS
Miami 83 72 83 72 / 0 0 0 0 West Kendall 85 69 86 69 / 0 0 0 0 Opa-Locka 85 71 85 71 / 0 0 0 0 Homestead 83 71 83 71 / 0 0 0 0 Fort Lauderdale 81 72 82 72 / 0 0 0 0 N Ft Lauderdale 82 72 83 71 / 0 0 0 0 Pembroke Pines 86 72 87 72 / 0 0 0 0 West Palm Beach 83 70 83 70 / 0 0 0 0 Boca Raton 83 71 83 71 / 0 0 0 0 Naples 85 66 87 66 / 0 0 0 0

MFL WATCHES/WARNINGS/ADVISORIES
FL...High Rip Current Risk through this evening for FLZ168-172-173.

AM...None.
GM...None.