Jupiter Inlet to Deerfield Beach, FL out 20nm Marine Forecast
| Tonight...S Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt After Midnight. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. |
| Sun...S Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 4 Seconds. Intracoastal Waters Light Chop. |
| Sun Night...S Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. |
| Mon...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. |
| Mon Night...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. |
| Tue...Se Winds Around 5 Kt, Increasing To 5 To 10 Kt In The Afternoon. Seas Less Than 2 Ft Or Less. Wave Detail: Se 1 Foot At 3 Seconds. Intracoastal Waters Light Chop. |
| Tue Night...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Intracoastal Waters Light Chop. |
| Wed...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Intracoastal Waters Light Chop. A Chance Of Showers And Tstms Until Late Afternoon. |
| Wed Night...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Intracoastal Waters Light Chop. A Chance Of Showers And Tstms After Midnight. |
| Thu...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Intracoastal Waters Light Chop. A Chance Of Showers And Tstms Until Late Afternoon. |
| Thu Night...Se Winds 5 To 10 Kt. Seas Less Than 2 Ft Or Less. Intracoastal Waters Light Chop. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Miami FL 746pm EDT Sat August 22 2026 ...New .KEY MESSAGES... Updated at 741pm EDT Sat August 22 2026 - Smoke from wildfires in the area could produce lower visibilities over portions of the Everglades and western suburbs overnight. Issued at 741pm EDT Sat August 22 2026 Minor updates from earlier to account for wildfire smoke which could retreat back towards the western suburbs overnight. Will continue to monitor plumes to see if reduced visibilities materialize which could impact roadways like US 41/Tamiami Trail, SR 997/Krome Avenue, US 27/Okeechobee Road, etc. Otherwise, forecast is on track with no additional updates planned. Have a great evening! Issued at 651pm EDT Sat August 22 2026 With the increasingly isolated nature of instability and the upcoming loss of insolation, the window for additional convective activity is coming to a timely end across the region as the one, two combo of overspreading cold pools and anvil debris act to suppress the threat of additional convective development outside of a few spotty locales. With shower and thunderstorm activity coming to a conclusion in short order, attention overnight will turn to the continuation of a robust bout of wildfire development and growth across the region even while isolated thunderstorms have propagated across South Florida yet again today. The development of a nocturnal inversion and stratification overnight may keep smoke close to the ground which could result in pockets of reduced air quality across portions of the western east coast metro. A new wildfire has recently been picked up on KAMX (Miami Radar) and has been documented by the Florida Forest Service just west of the intersection of Krome and US-27 in northern Miami-Dade County. This wildfire as well as several others actively burning in southwestern Miami-Dade County could produce smoke as they smolder overnight. This threat of reduced air quality and/or inland visibility will be monitored overnight. .SHORT TERM... (Today through Sunday) Issued at 133am EDT Sat August 22 2026 There has not been much change in the pattern evolution for this weekend. From a synoptic standpoint, the ridge in the Southwestern US continues to strengthen and allows for increased jet dynamics to strengthen the trough over the Eastern Seaboard. The base of the trough is still not expected to make it into South Florida and the overall flow pattern will remain largely on the weaker side, but this enhanced troughing pattern is expected to keep a prevailing southerly/south-southwesterly flow pattern in place through the weekend. Therefore, with deep moisture advection continuing and elevated PWATs (Precipitable Waters) of 1.7-2.0" or even more in some areas, diurnal heating and sea breeze circulations each day will have the necessary ingredients to produce scattered to numerous showers and thunderstorms. With the primary south to south-southwest flow, this will favor interior and Southeast Florida for highest rain chances this weekend as showers and storms are expected to be the most widespread in these areas. The most robust activity will occur in the later afternoon during peak diurnal heating and once the sea breeze boundaries advance inland. Model soundings do highlight adequate SBCAPE of 3000-4000 J/kg as well as inverted-V signatures and steep low level lapse rates leading to DCAPE values of 1000-1200 J/kg, so there will be an outside chance for an isolated severe storm or two via gusty winds again both days this weekend. Otherwise, the primary hazards will continue to be heavy rainfall that could lead to localized flooding in poor drainage areas, and sub-severe strong wind gusts. High temperatures this weekend will remain in the low to mid 90s. The deeper moisture will also keep dew points in the mid to upper 70s for most areas each day, thus maximum heat index values are anticipated to remain elevated up to the 105-110F range. With the expectation of some increased cloud cover and an earlier initiation time for convection to develop, have opted to not issue a Heat Advisory today, which will end the streak of 13 consecutive days with at least a portion of the region being under a Heat Advisory unless a short-fused one is issued later today. HREF probabilities highlight a 10-20% or less chance for heat indices to reach 105F or higher at any point of day, which is even lower for occurring over two or more consecutive hours. Long Term (Sunday night through Friday) Issued at 133am EDT Sat August 22 2026 As the trough draped across the Eastern Seaboard starts to erode early next week, the local wind regime will start to shift back to what we typically see in the summer time here in South Florida with low level flow being dominated by the Atlantic sea breeze. This will cause diurnal convection to start focusing back over both the interior and Southwest Florida rather than Southeast Florida like has been observed recently. Starting Monday, the highest rain chances (60-80%) will begin to focus across Southwest Florida and this will last through the end of the long term period. Other than the rain potential, there is also potential for another Saharan Air Layer (SAL) to impact the area early next week, but guidance highligheights this SAL (Saharan Air Layer) breaking up upon it's arrival and thus it's influence on a return to hot conditions should be less than the previous round. The SAL (Saharan Air Layer) could lower rain chances for a day or two, but with this being a thinner layer that clears out much faster, not expecting there to be any days with limited to no rainfall across the region. High temperatures are projected to remain in the low to mid 90s each day. Overnight lows range from the low 70s across the interior and lake regions to the upper 70s and low 80s along the coastal metros. Marine Issued at 133am EDT Sat August 22 2026 Gentle west-southwest winds are expected across the Gulf waters this weekend with southeasterly winds across the Atlantic. Seas will remain at 1-2 feet or less each day across all local waters. Scattered showers and thunderstorms are possible late each day and in the late night hours over the waters, 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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