Marine Weather Net

Jupiter Inlet to Deerfield Beach, FL out 20nm Marine Forecast


TODAY

W
WINDS
5 KNOTS

TONIGHT

E
WINDS
5 KNOTS

THU

E
WINDS
5 - 10
KNOTS

THU NIGHT

E
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
AMZ650 Forecast Issued: 321 AM EST Wed Jan 07 2026

Today...W Winds Around 5 Kt, Becoming N Late. Seas Around 2 Ft. Wave Detail: Se 1 Foot At 4 Seconds And N 1 Foot At 7 Seconds. Intracoastal Waters Smooth.
Tonight...E Winds Around 5 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: N 1 Foot At 7 Seconds. Intracoastal Waters Smooth.
Thu...E Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less, Then Around 2 Ft In The Afternoon. Wave Detail: E 1 Foot At 2 Seconds, Becoming E 1 Foot At 3 Seconds. Intracoastal Waters Light Chop.
Thu Night...E Winds 10 To 15 Kt. Seas Around 2 Ft. Wave Detail: E 2 Ft At 3 Seconds. Intracoastal Waters A Moderate Chop.
Fri And Fri Night...E Winds 10 To 15 Kt. Seas 2 To 3 Ft. Wave Detail: E 3 Ft At 4 Seconds And N 1 Foot At 4 Seconds. Intracoastal Waters A Moderate Chop.
Sat Through Sun...E Winds 10 To 15 Kt. Seas 2 To 3 Ft. Wave Detail: E 3 Ft At 5 Seconds. Intracoastal Waters A Moderate Chop.
Sun Night...Ne Winds 20 To 25 Kt. Seas 2 To 4 Ft, Occasionally To 5 Ft, Building To 5 To 7 Ft, Occasionally To 9 Ft After Midnight. Intracoastal Waters A Moderate Chop. A Chance Of Showers.
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Area Forecast Discussion
National Weather Service Miami FL
1218am EST Wednesday Jan 7 2026

.SHORT TERM... (Today through Thursday) Issued at 1208am EST Wednesday Jan 7 2026

Large scale ridging remains spread over most of the south-central and southeastern U.S., which will maintain a quiet weather pattern and predominantly dry conditions in place. Temperatures for today and tomorrow are expected to reach the low to mid 80s.

With this rinse and repeat pattern in place, fog development becomes the focus again in the short term period. Interior and Southwest Florida will continue to be the focus area for fog development as radiational cooling looks to be maximized in those areas. Can't rule out some pockets of dense fog forming closer to the east coast metro though either. The latest HREF guidance gives a 50-70% chance for interior and Southwest Florida to see fog development that results in visibilities falling to a half mile or less between 2-9am and about 20-30% for the western edges of the east coast metro. Therefore, Dense Fog Advisories may become necessary again, which will be monitored closely. Otherwise, expect a calm and pleasant couple of days in this mid-to-late week period.

Long Term
(Thursday night through Tuesday) Issued at 1208am EST Wednesday Jan 7 2026

The stagnant weather pattern will persist through the rest of the week and into this weekend as the ridging pattern continues to amplify over the Eastern Seaboard and the western Atlantic waters, which is preventing troughs and frontal boundaries from pushing southwards and into the South Florida region. As a result, quiet weather will be ongoing at least through Saturday and perhaps most of Sunday. Long range ensemble guidance (EPS/GEFS and AI ensembles) continues to hint at the next frontal boundary approaching the region in the Sunday-Monday time frame. The GEFS suite of members seems to be the most progressive, although 50% or more of its members don't have the front crossing into the South Florida region until Sunday night or Monday morning. Other ensembles don't have nearly as many of their members pushing the front through until early Monday or Monday afternoon, so as of now a solution with the front arriving Monday morning is in the forecast.

Regardless of how quickly this frontal boundary approaches, it does appear to be another predominantly dry one as it weakens in its approach. Current 90th percentile Quantitative Precipitation Forecast for this time frame (Sun- Mon) is only up to 0.25", so no impactful weather is expected through the forecast period. High temperatures each day through the weekend will reach the low to mid 80s. Once the front arrives, temperatures will drop back into the 70s for a couple days.

Marine
Issued at 1208am EST Wednesday Jan 7 2026

Light to gentle winds continue across the local waters through mid- week and likely into the late week period as high pressure presides over the area. Seas are expected mostly at 2 feet or less across all local waters.

NOAA Miami FL Office: Watches - Warnings - Advisories
FL...None. AM...None. GM...None.