Marine Weather and Tide Forecast for Fisher Island, FL

SHORT TERM
(This afternoon through Monday)
Issued at 1153 AM EDT Sun Apr 12 2026

Stout mid-level ridging (500mb height values around the 97th-99th percentile when compared to historical norms) continues to gradually settle in across the region as 500mb wind flow remains out of a northeasterly direction. Deep-layer ridging also extends down to the surface as the axis of surface ridging currently situated across the western Atlantic waters continues to usher in a dry airmass into the region with precipitable water values (0.6-0.8 inches) near or just above the 10th percentile for today's date.
Winds will be strongest today with gusts generally around 25-30 mph, though occasional gusts could be closer to 35 mph, especially along the immediate east coast and at non-sheltered locations. On Monday, winds and gusts should be about 5 mph weaker across south Florida. Outside of cumulus clouds, the ridging pattern and dry air will result in benign conditions with no meaningful precip expected outside of a few sprinkles.

A temperature gradient will continue across the region both during the day and overnight as onshore winds keep temperatures along the east coast cooler during the day and warmer overnight. High temperatures today and tomorrow will range from the upper 70s to low 80s across the east coast metro to upper 80s across the western half of South Florida. Overnight temperatures will range from the low 70s along the immediate east coast to upper 50s to low 60s across inland portions of the region tonight into early Monday morning.

LONG TERM
(Monday night through next Saturday)
Issued at 1153 AM EDT Sun Apr 12 2026

Deep layer ridging and copious amounts of dry air will remain throughout the vertical atmospheric column for much of the upcoming work week. Although surface ridging will remain entrenched across the region over the next several days, a weakening pressure gradient will result in a gradual relaxing of surface winds during the early week period. Subsidence, low precipitable water values compared to historical climatological norms, and a lack of any rainfall & sufficient cloud cover will result in a continued warming trend across the majority of the region with the potential of high temperatures in the low 90s across the western half of South Florida by mid- week. An onshore breeze will keep high temperatures slightly cooler along the east coast but temperatures in the middle to upper 80s will be possible across the east coast metro during the second half of the week.

Mid-level ridging will gradually elongate and flatten during the second half of the week as transient lobes (troughing) of mid- level vorticity advect eastward across the central United States.
At the surface, residual dry air and surface ridging will keep conditions on the dry side with the stretch of minimal rain chances continuing into the end of the extended period.
Deterministic and ensemble guidance continues to hint at the potential of a lobe of vorticity being pinched off from the larger trough axis advecting into the western Atlantic while the axis itself continues to advect northeastward. Model guidance continues to highlight the potential of this cut-off low feature being steered back towards the vicinity of our region early next week. This remains the main source of forecast uncertainty late in the period. Ensembles agree on the continual weakening of the trough as it moves westward, but the timing and spatial extent of the moisture advection is less clear. Generally speaking though, by the end of the week there may be some more shower activity along the east coast in the mornings, with some scattered seabreeze convection across the interior and west coast in the afternoons.

AVIATION
(00Z TAFS)
Issued at 637 PM EDT Sun Apr 12 2026

VFR and breezy easterly flow throughout the TAF period at all terminals. Winds may lessen slightly overnight but will once again enhance after daybreak on Monday.



MARINE
Issued at 1153 AM EDT Sun Apr 12 2026

Solid advisory levels winds with occasional gusts at the top-end of advisory levels are expected for the rest of today across Atlantic waters, with only a slight decrease on Monday. Seas will reach their peak by tonight and crest in the 6-8 foot range across the Gulf Stream. While winds and seas will subside a bit for the remainder of the week, cautionary conditions will continue across the Atlantic as winds and gusts likely won't drop below 15 knots through the end of the week.

BEACHES
Issued at 1153 AM EDT Sun Apr 12 2026

While the strongest and most frequent rip currents are expected today and tomorrow, the high risk for deadly rip currents will most likely continue for much of the week. The strong onshore flow around the surface ridge will also result in elevated surf, with breakers around 4-6 ft through Monday.

PRELIMINARY POINT TEMPS/POPS
Miami 69 80 70 81 / 0 0 0 0 West Kendall 65 82 67 83 / 0 0 0 0 Opa-Locka 68 82 70 82 / 0 0 0 0 Homestead 70 81 70 82 / 0 0 0 0 Fort Lauderdale 70 79 71 79 / 0 0 0 0 N Ft Lauderdale 69 79 70 80 / 0 0 0 0 Pembroke Pines 70 82 71 83 / 0 0 0 0 West Palm Beach 68 80 69 80 / 0 0 0 0 Boca Raton 69 80 70 80 / 0 0 0 0 Naples 64 87 66 87 / 0 0 0 0

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

AM...Small Craft Advisory until 8 PM EDT Monday for AMZ630-651-671.

Small Craft Advisory until 8 AM EDT Monday for AMZ650-670.

GM...None.