Jupiter Inlet to Deerfield Beach, FL out 20nm Marine Forecast
| Today...E Winds 15 To 20 Kt. Seas 4 To 5 Ft, Occasionally To 6 Ft. Wave Detail: E 5 Ft At 6 Seconds And Nw 1 Foot At 6 Seconds. Intracoastal Waters Choppy In Exposed Areas. A Slight Chance Of Showers And Tstms This Afternoon. |
| Tonight...E Winds Around 20 Kt With Gusts Up To 25 Kt. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: E 5 Ft At 6 Seconds And Nw 1 Foot At 6 Seconds. Intracoastal Waters Choppy In Exposed Areas. A Chance Of Showers In The Evening. |
| Sun...E Winds 15 To 20 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft. Wave Detail: E 5 Ft At 7 Seconds And Nw 1 Foot At 6 Seconds. Intracoastal Waters Choppy In Exposed Areas. A Chance Of Showers. |
| Sun Night...E Winds 10 To 15 Kt. Seas 2 To 4 Ft, Occasionally To 5 Ft. Wave Detail: E 3 Ft At 6 Seconds And Nw 1 Foot At 6 Seconds. Intracoastal Waters A Moderate Chop. A Chance Of Showers. |
| Mon...E Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 5 Seconds And Nw 1 Foot At 5 Seconds. Intracoastal Waters Light Chop. A Chance Of Showers. |
| Mon Night...E Winds Around 10 Kt. Seas Around 2 Ft. Wave Detail: E 2 Ft At 4 Seconds And Nw 1 Foot At 5 Seconds. Intracoastal Waters Light Chop. Showers Likely With A Chance Of Tstms. |
| Tue...E Winds Around 10 Kt, Becoming Ne In The Afternoon. Seas 2 To 4 Ft, Occasionally To 5 Ft. Intracoastal Waters A Moderate Chop. Showers With A Chance Of Tstms. |
| Tue Night...Ne Winds 20 To 25 Kt. Seas 5 To 7 Ft, Occasionally To 9 Ft, Building To 7 To 10 Ft, Occasionally To 13 Ft After Midnight. Intracoastal Waters Rough In Exposed Areas. Showers With A Chance Of Tstms. |
| Wed...E Winds 25 To 30 Kt. Seas 8 To 11 Ft, Occasionally To 14 Ft, Building To 9 To 13 Ft, Occasionally To 17 Ft In The Afternoon. Intracoastal Waters Very Rough In Exposed Areas. Showers With A Chance Of Tstms. |
| Wed Night...E Winds 30 To 35 Kt. Seas 10 To 14 Ft, Occasionally To 18 Ft. Intracoastal Waters Extremely Rough In Exposed Areas. Showers With A Chance Of Tstms In The Evening, Then Showers Likely After Midnight. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Miami FL 647am EDT Sat April 4 2026 .SHORT TERM... (Today through Sunday) Issued at 135am EDT Sat April 4 2026 The surface high pressure will preside over South Florida for one more day before beginning to break down on Sunday, maintaining the brisk and steady easterly flow across the region. The development of diurnal sea breeze circulations and diurnal heating will continue to be the primary influencers in some isolated shower activity and perhaps a couple of thunderstorms. 500mb temperatures are still very cold for this time of year (-11 to -12C), which will support steeper mid-level lapse rates that can cause a core or two to become taller and result in downdraft potential given the drier air aloft and an inverted-V being present on many of the hi-res model soundings. Nevertheless, with high pressure dominance this is expected to be an extremely isolated threat as it relates to storm potential. With the ongoing easterly regime, highest rain chances are likely to favor the Gulf coast areas during the afternoon hours with chances for some isolated activity in the morning hours near the Atlantic coast. For the second half of the weekend, a more unsettled pattern begins to take shape. The previously mentioned robust trough traversing across the central U.S. will approach and advect across the Eastern Seaboard by the end of day on Sunday. An attendant cold front to this trough will be advecting southwards along the leading edge of the trough axis, but will start waning in strength as it mixes with a warmer environment in Northern Florida. However, we will begin to see some deeper moisture return occurring both from the tropics of the Caribbean and from the front forcing some moisture from the central U.S. southwards. All in all, PWATs (Precipitable Waters) rise to around 1.3-1.6" for Sunday afternoon and evening when the frontal boundary starts to slow down in the vicinity of northern Florida. As the deeper moisture starts to settle in, the potential for enhanced convection will be along the sea breezes and any boundary collisions (sea breezes and outflows) on Sunday. Convective parameters are not popping out in a way that supports much severe activity, but there is always a chance for one or two storms to become stronger than the rest, particularly among boundary collisions. These collisions are most likely to occur over interior and Gulf coast areas as easterly flow continues for most of Sunday, which is where the highest Probability of Precipitation (50-60%) are on Sunday. East coast metro areas are closer to 40%. High temperatures for the next couple of days will still be in the 80s with the hotter temperatures (upper 80s) being felt across the Gulf coast areas under the persistent easterly wind regime. Long Term (Sunday night through Friday) Issued at 135am EDT Sat April 4 2026 Heading into the new week, the large synoptic trough continues to swing through the Eastern Seaboard while the aforementioned frontal boundary washes out and begins to sag more southwards. Long-range guidance still is uncertain in regards to how far south the boundary may get as some ensemble suites have it pushing through as a weak front while others have the boundary stalling completely around the Central Florida area. Regardless of the solution, the overall results will not differ a ton in terms of overall rain chances as deeper moisture pools across the region and the nearby presence of the frontal boundary will help provide extra instability for continued unsettled conditions on Monday. By mid-week, an increasingly active and wet pattern has the potential to take shape, although the potential range of solutions still very pretty drastically. On the large scale, a secondary shortwave trough is anticipated to advect across the Gulf and towards the Florida Peninsula that will provide extra forcing for ascent via consistent positive vorticity advection. This will be in tandem with the diurnal sea breeze circulations and enhanced jet stream dynamics as the subtropical jet streams across Florida and increases divergence aloft. Therefore, with multiple forcing mechanisms and deep moisture anticipated to pool over South Florida (PWATs (Precipitable Waters) rising to 1.5-1.8 inches or higher), the potential exists for some widespread rainfall heading towards the middle of the week. Total Quantitative Precipitation Forecast ranges will have to be ironed out over the next several days, but all in all this time frame is trending to be wetter than normal. The troughing pattern could linger into the end of the week as well, keeping the wetter and more unsettled pattern in place although this being at the tail end of the forecast period also creates the most uncertainty. High temperatures are expected in the low to mid 80s on Monday with exception for the upper 80s for Gulf coast metro areas. By Tuesday and into the mid-week time frame, temperatures may fall back into the upper 70s for many areas for a couple of days as the front stalls and rain cooled air occurs. Temperatures are then likely to Marine Issued at 135am EDT Sat April 4 2026 A fresh to strong easterly breeze will continue across the Atlantic waters through today and tonight before starting to decrease on Sunday. During this same time frame, a moderate breeze will be observed over the Gulf waters. A Small Craft Advisory remains in effect for the Atlantic waters and Biscayne Bay through this evening due to sustained winds expected at 20-25 kts. A few showers are possible today with increasing rain chances beginning Sunday and into next week. Seas across the Atlantic waters will mainly be in the 4-6 ft range while Gulf seas are forecast to remain in the 2-3 ft range. Beaches Issued at 135am EDT Sat April 4 2026 The high risk for dangerous rip currents will continue at all Atlantic beaches through this weekend as gusty onshore winds persist. NOAA Miami FL Office: Watches - Warnings - Advisories FL...High Rip Current Risk through Sunday evening for FLZ168-172-173. AM...Small Craft Advisory until 1am EDT Sunday for AMZ630. Small Craft Advisory until 6am EDT Sunday for AMZ650-651-670- 671. GM...None. |
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