Deerfield Beach to Ocean Reef, FL Out 20 - 60 NM Marine Forecast
| Tonight...S Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: S 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. A Chance Of Showers And Tstms. |
| Tue...S Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: S 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. Showers Likely With A Chance Of Tstms. |
| Tue Night...S Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: S 1 Foot At 4 Seconds And Nw 1 Foot At 5 Seconds. Intracoastal Waters Light Chop. A Chance Of Tstms. A Chance Of Showers In The Evening, Then Showers Likely After Midnight. |
| Wed...Sw Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: S 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. A Chance Of Tstms. Showers. |
| Wed Night...Ne Winds Around 5 Kt, Becoming Sw After Midnight. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 3 Seconds. Intracoastal Waters Smooth. A Chance Of Tstms. Showers. |
| Thu...Nw Winds Around 5 Kt, Becoming Ne Around 5 Kt In The Afternoon. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 2 Seconds And Nw 1 Foot At 3 Seconds. Intracoastal Waters Smooth. A Chance Of Tstms. Showers Likely Until Late Afternoon, Then A Chance Of Showers Late. |
| Thu Night...N Winds Around 5 Kt. Seas Around 2 Ft. Intracoastal Waters Smooth. A Chance Of Tstms Until Early Morning. A Chance Of Showers. |
| Fri...N Winds 5 To 10 Kt. Seas 2 To 4 Ft, Occasionally To 5 Ft. Intracoastal Waters Light Chop. A Chance Of Tstms. A Chance Of Showers In The Morning, Then Showers Likely In The Afternoon. |
| Fri Night...Ne Winds 5 To 10 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft. Intracoastal Waters Light Chop. A Chance Of Tstms. Showers Likely Until Early Morning, Then A Chance Of Showers Late. |
| Sat...Ne Winds 5 To 10 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft. Intracoastal Waters Light Chop. A Chance Of Tstms. A Chance Of Showers In The Morning, Then Showers Likely In The Afternoon. |
| Sat Night...Ne Winds 5 To 10 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft. Intracoastal Waters Light Chop. A Chance Of Tstms. Showers Likely Until Early Morning, Then A Chance Of Showers Late. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Miami FL 629pm EDT Monday September 21 2026 .SHORT TERM... (Rest of today through Tuesday) Issued at 310pm EDT Monday September 21 2026 Ensemble and global solutions remain in fair agreement in depicting an upper-level low lingering around the Florida west coast through the rest of today, then gradually migrating northeast tomorrow. It will continue to influence the area with a flow pattern very favorable for deep moisture to keep streaming across SoFlo. MFL 12Z sounding data confirms PWATs (Precipitable Waters) above 2 inches (2.18), and model soundings keep values in the 2.1-2.4" through the short term. Scattered to numerous showers and thunderstorms will continue through the rest of this afternoon and into the evening hours, with best chances along sea breeze boundaries. Subsequent outflow boundary collisions from early thunderstorms may also produce additional convection that could last into the evening hours, especially along the east coast. 500mb temps remain in the -7C to - 8C, so a few strong storms can't be ruled out. The greater concern remains in the potential for slow-moving, or even stationary downpours, resulting in localized flooding. Rainfall amounts of 1-2" are expected, and up to 4" in isolated cases. This may result in urban flooding, especially in areas with poor drainage. WPC continues to keep the east coast metro areas under a marginal risk of excessive rainfall for the rest of today and Tuesday. Similar forecast scenario for Tuesday, except for the departure of the aforementioned low, which will help in warming up by one or two degrees the temperatures aloft. This may help in having less stronger storms, but still expecting widespread coverage in the afternoon (max POPs in the 70% range). Lows tonight will be in the low-mid 70s, then afternoon highs on Tuesday will again reach the upper 80s to around 90. Long Term (Tuesday night through Sunday) Issued at 104am EDT Monday September 21 2026 Mid to late week an upper level low moves into the eastern US and then lingers off the New England coast through the weekend. A frontal boundary will slide south across the state on Thursday and settle either over far southern FL or across the Straits Friday and remain there through the upcoming weekend. Some drier air will likely filter at least down to the lake region late in the week, but will struggle to make it all the way through South FL. This is reflected in the Probability of Precipitation for late in the week into the weekend with the highest Probability of Precipitation over the far southern peninsula and lower chance Probability of Precipitation across the northern half of the forecast area. Overall it will remain a wet and unsettled period across South FL, with at least isolated instances of urban flooding remaining possible each day. Temperatures through the extended period remain near normal with highs each day generally in the upper 80s to lower 90s. Low temperatures will be in the low to middle 70s. Marine Issued at 104am EDT Monday September 21 2026 Gentle southerly flow is expected over the area waters today. Seas generally 2 ft or less. Scattered thunderstorms expected each day this week which may result in locally hazardous winds and seas. NOAA Miami FL Office: Watches - Warnings - Advisories FL...None. AM...None. GM...None. |
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