Marine Weather and Tide Forecast for North Key Largo, FL

LONG TERM
(Saturday night through Thursday)
Issued at 303 AM EDT Fri Apr 18 2025

Throughout the weekend, the forecast will continue to be heavily influenced by the strong Atlantic surface high, as well as the mid level ridging and high pressure. These atmospheric features will prevent much needed moisture with model guidance forecasting approximately 60-70% of normal precipitable water and afternoon dew points in the low 60s in South Florida. Therefore, even with the easterly breeze and warm temperatures, conditions are expected to remain dry and stable throughout the weekend and into next week.
There will be a slow warming trend bringing high temperatures into the mid-to-upper 80s across a majority of the region, with a potential for abnormal near 90 across SW Florida by Sunday.
Overnight temperatures will be cool and comfortable, with outgoing longwave radiation and little sky coverage, allowing for lows to drop into the 60s, except low 70s along the east coast. With very dry air and very dry fuels regionwide, winds and RH values will be watched carefully as the conditions will be prime for ignition and rapid burns.

As we move into early to mid next week, the west Atlantic high will maintain a stronghold of our weather with dry and stable conditions continuing. Pressure gradients tighten which will lead to potential for windy conditions across the east coast metro and Atlantic waters. There will not be a sufficient increase in the moisture levels with the air mass still projected to be too dry for precipitation. Temperatures will continue to reach the mid 80s to low 90s in the afternoon for a majority of the region - slightly cooler in the east coast metro. Low temperatures will drop into the 60s, except for low 70s across the east coast.

AVIATION
(18Z TAFS)
Issued at 1202 PM EDT Fri Apr 18 2025

VFR conditions prevail with dry and breezy easterly flow through the period.

MARINE
Issued at 1202 PM EDT Fri Apr 18 2025

Increasingly breezy easterly flow continues this afternoon and a Small Craft Advisory has been issued through Sunday morning for Atlantic waters, and starting early Saturday morning for some southern marine waters on the Gulf side. Conditions may remain hazardous for small craft through the rest of the weekend and into early next week.

The seas are expected to gradually increase and reach the 4-6 feet range by this afternoon, and last through Saturday morning. Can't rule out occasional 7 ft seas, mainly over the southern-most Atlantic waters.

BEACHES
Issued at 1202 PM EDT Fri Apr 18 2025

Breezy easterly winds will bring a high risk of rip currents for all Atlantic beaches today and through at least Sunday. Elevated surf will also affect portions of the Atlantic beaches with surf heights in the 4-5 feet range later today and through Saturday.

PRELIMINARY POINT TEMPS/POPS
Miami 73 81 73 83 / 0 0 0 0 West Kendall 69 83 69 85 / 0 0 0 0 Opa-Locka 71 83 71 85 / 0 0 0 0 Homestead 71 82 71 83 / 0 0 0 0 Fort Lauderdale 72 80 72 81 / 0 0 0 0 N Ft Lauderdale 72 80 72 82 / 0 0 0 0 Pembroke Pines 72 85 72 86 / 0 0 0 0 West Palm Beach 70 81 71 82 / 0 0 0 0 Boca Raton 71 82 71 83 / 0 0 0 0 Naples 65 88 66 87 / 0 0 0 0

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

AM...Small Craft Advisory from 4 PM this afternoon to 8 AM EDT Sunday for AMZ630.

Small Craft Advisory until 8 AM EDT Sunday for AMZ650-651-670- 671.

GM...Small Craft Advisory from 8 AM Saturday to 8 AM EDT Sunday for GMZ657.