Marine Weather Net

Biscayne Bay Marine Forecast


TODAY

NE
WINDS
5 - 10
KNOTS

TONIGHT

E
WINDS
5 - 10
KNOTS

WED

S
WINDS
5 - 10
KNOTS

WED NIGHT

SW
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
AMZ630 Forecast Issued: 400 AM EST Tue Feb 18 2025

Today...Ne Winds 5 To 10 Kt. Light Chop. A Slight Chance Of Showers.
Tonight...E Winds 5 To 10 Kt. Light Chop.
Wed...S Winds 5 To 10 Kt. Light Chop.
Wed Night...Sw Winds 5 To 10 Kt. Light Chop.
Thu Through Sat...E Winds 15 To 20 Kt. Choppy.
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Area Forecast Discussion
National Weather Service Miami FL
144am EST Tuesday Feb 18 2025

...New SHORT TERM, LONG TERM,

Marine
EACHES... .SHORT TERM... (Today through Wednesday) Issued at 143am EST Tuesday Feb 18 2025

A weak surface trough is expected to track slowly across the far southeastern portion of the Florida Peninsula and Bahamas today before departing off to the northeast ahead of the next approaching frontal boundary later this week. Further analysis also highligheights a stationary front currently off to the south over the Florida Straits. With the low level flow having shifted to an easterly flow pattern as of yesterday afternoon and the presence of the surface trough, there will be chances for a few isolated showers across primarily the east coast metro areas of South Florida today where Probability of Precipitation are around 20%. However, any rainfall will be limited with any showers as abundantly dry air remains present in the mid-to-upper levels of the atmosphere, especially above the 800mb height level. Thus, any showers would be expected to be light and short-lived due to their shallow nature. Any light showers would taper off for the evening with dry conditions and light winds taking over for tonight. There will be potential for some areas of patchy fog as winds become light and skies clear out overnight into Wednesday morning.

As we move into Wednesday, winds will start to veer southerly and increase as a longwave trough tracks across the Eastern Seaboard and its associated cold frontal boundary will push southeastwards towards the Florida Peninsula. This front is expected to weaken in its approach to South Florida and is unlikely to reach the region until later Wednesday night. Ahead of the cold front, the previously mentioned stationary front over the Florida Straits will lift northwards as a warm front and lead to warmer temperatures across all areas by several degrees on Wednesday versus today. Moisture will still be lacking, so not expecting many if any showers on Wednesday.

Temperatures will be mostly in the upper 70s to low 80s across South Florida today before rising into the mid 80s for most areas on Wednesday. Coastal areas will be the coolest in the low 80s on Wednesday. Overnight lows tonight will range from the low 60s near the Lake Okeechobee area to the mid to upper 60s elsewhere across South Florida.

Long Term
(Wednesday night through Monday) Issued at 143am EST Tuesday Feb 18 2025

Latest ensembles depict increasing moisture across South Florida ahead of an incoming cold front Wednesday night, with increasing chances of showers Wednesday night into Thursday, but mainly for the northern portions of the CWA. Cannot rule out some isolated showers further south into Miami-Dade, but chances remain fairly low at the moment as consensus shows the best pool of moisture reaching and lingering around the Lake region/Palm Beach county before fading out. Additionally, dynamic parameters remain rather unfavorable for deep convection to develop, leading to minimal chances for thunderstorms. A very quiet weather pattern then returns for a few days for the end of the week and beginning of the weekend behind the front. Beyond that, long term guidance is hinting at a trough progressing across the Gulf and potentially into the Florida Peninsula, but some long range models are tracking the low further north or south compared to others. Therefore, while there is potential for a disturbance late this weekend and early next week that could increase rain chances, uncertainty is too high to pinpoint details and thus currently slight chances for showers are forecast across the region.

Temperatures are expected to be in the 70s each day across South Florida late this week and this weekend behind the cold front Wednesday night.

Marine
Issued at 143am EST Tuesday Feb 18 2025

Generally benign conditions today with winds at 10-15 kts and seas at 2-4 feet. There will be chances for a few showers today, mainly over the Atlantic waters. Winds will increase in the Atlantic on Wednesday back to near cautionary levels at 15-20 kts with some gusts up to 20-25 kts, but seas should remain at 2-4 feet.

Beaches
Issued at 143am EST Tuesday Feb 18 2025

A high risk for rip currents is in effect for the Palm beaches with a moderate risk for the rest of the Atlantic beaches today. An elevated risk is likely to continue for the rest of this week as well.

NOAA Miami FL Office: Watches - Warnings - Advisories
FL...High Rip Current Risk from 7am EST this morning through this evening for FLZ168.

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