Sebastian Inlet to Jupiter Inlet out 20nm Marine Forecast
| Rest Of Tonight...East Winds Around 10 Knots, Becoming Southeast. Seas 2 To 3 Feet. Wave Detail: Northeast 2 Feet At 8 Seconds And East 2 Feet At 10 Seconds. Mostly Smooth On The Intracoastal Waters. |
| Friday...South Winds Around 10 Knots. Seas 2 To 3 Feet. Wave Detail: Northeast 2 Feet At 8 Seconds And East 2 Feet At 10 Seconds. A Light Chop On The Intracoastal Waters. |
| Friday Night...Southwest Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: Southeast 2 Feet At 3 Seconds And Northeast 2 Feet At 7 Seconds. Mostly Smooth On The Intracoastal Waters. |
| Saturday...South Winds 5 To 10 Knots. Seas 2 Feet. Wave Detail: East 2 Feet At 10 Seconds. A Light Chop On The Intracoastal Waters. |
| Saturday Night...Southwest Winds Around 10 Knots, Becoming West After Midnight. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 10 Seconds And South 1 Foot At 3 Seconds. Mostly Smooth On The Intracoastal Waters. A Slight Chance Of Showers. |
| Sunday...Southwest Winds Around 10 Knots. Seas 2 To 3 Feet. Wave Detail: Northeast 2 Feet At 9 Seconds And East 2 Feet At 10 Seconds. A Light Chop On The Intracoastal Waters. A Chance Of Showers With A Slight Chance Of Thunderstorms In The Afternoon. |
| Sunday Night...West Winds 10 To 15 Knots. Seas 3 To 4 Feet. A Light Chop On The Intracoastal Waters. A Slight Chance Of Thunderstorms In The Evening. A Chance Of Showers. |
| Monday...Northwest Winds 15 To 20 Knots, Becoming North In The Afternoon. Seas 3 To 5 Feet, Occasionally To 6 Feet. Choppy On The Intracoastal Waters. A Chance Of Showers. |
| Monday Night...North Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Choppy On The Intracoastal Waters. |
| Tuesday...Northeast Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. A Moderate Chop On The Intracoastal Waters. A Slight Chance Of Showers In The Afternoon. |
| Tuesday Night...North Winds Around 10 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Mostly Smooth On The Intracoastal Waters. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Melbourne FL 709pm EST Thu Dec 4 2025 Issued at 134pm EST Thu Dec 4 2025 Rest of today-Friday... Upper high pressure across the Caribbean will continue to expand across central Florida through Friday. An upper level low across the Quebec region today will shift eastward into the New Brunswick area by Friday and out into the Atlantic. At the surface, high pressure will remain over Florida while it slowly shifts eastward. A low pressure system will develop across the western Gulf today before shifting eastward across the northern Gulf late today into Friday. This will drag a cold front into north Florida on Friday. Locally, NE to ENE winds at 5-10 mph today will become light and variable over night before becoming S-SW at 5-10 mph on Friday. Despite increasing moisture along and ahead of the approaching front, no mentionable rain chances across east central Florida through Friday. Temperatures will be on a gradual warming trend, with seasonable to slightly above normal temperatures today becoming above normal by Friday. Afternoon highs will be in the low to mid 70s along and north of the I-4 corridor, and upper 70s to low 80s everywhere else today, with low to mid 80s on Friday. Overnight lows will also gradually warm, with lows ranging from low to mid 50s to low 60s across the interior, and low to mid 60s across the coast tonight, and low to mid 60s on Friday. Much like this morning, patchy fog will be possible late tonight into early Friday morning across east central Florida. Remember, if you encounter fog while driving, slow down, use your headlights, and leave plenty of distance ahead of you. Saturday-Monday... Upper high pressure centered over the Caribbean on Saturday will slide southward into early next week as an upper level trough begins to dig across the Midwest and Deep South. A surface cold front across North Florida on Saturday will finally get pushed across east central Florida and into South Florida Sunday into Monday as that trough pushes eastwards towards the eastern US coastline. Surface high pressure will then build down across the Florida peninsula from the Deep South behind the front on Monday, with flow aloft becoming more zonal. Locally, southwest winds around 10 mph or less on Saturday will veer west to northwest Sunday evening ahead of the cold front before shifting north to northeast Monday afternoon behind the front. The pressure gradient will tighten slightly, especially over the Atlantic waters, on Monday, with winds becoming breezy at times with speeds at 10-15 mph with gusts up to 20-25 mph possible. Moisture will increase through the weekend ahead of the front (forecast PW values (Precipitable Water values) around 1.75-2.1") before drier air moves in behind the front on Monday with PW values (Precipitable Water values) forecast to drop to 0.7-1.0" in the afternoon. Rain chances return to the forecast on Saturday as moisture is increasing over the area, with a low to medium (20-40 percent) chance of rain Saturday afternoon, with the highest chances occurring along and north of the I-4 corridor. Rain chances continue Sunday, with a medium to high (30-70 percent) chance of rain through the day as the cold front approaches the local area. The highest potential for rain will be from Brevard to Osceola counties northward. The threat for lightning storms will return on Sunday, with a low threat (20 percent) for lightning storms across all of east central Florida in the afternoon through early evening. Lingering isolated to scattered showers area wide on Monday, with the highest potential (30-40 percent) occurring from southern Brevard to southern Osceola counties southward. Drier air will begin filter down across the area behind the front Monday afternoon, with mostly dry conditions forecast from Cape Canaveral to Kissimmee northward, expanding to all land areas in the evening and overnight hours. Temperatures will remain above normal on Saturday and Sunday with highs generally ranging from upper 70s to low 80s across the north, and low to mid 80s across the south. Seasonable to slightly below normal temperatures will spread across the local area on Monday behind the front. Afternoon highs will range from upper 60s to low 70s across the north, and low to mid 70s across the south. Overnight lows will generally be in the 60s Saturday night before dropping to upper 50s to near 60 degrees along and north of the I-4 corridor and low to mid 60s everywhere else on Sunday night as the front is pushing through. Overnight temperatures continue to drop Monday night with temperatures ranging from upper 40s to low 50s across the interior, and low to mid 50s along the coast, except for low 60s along the immediate Martin county coast. Tuesday-Thursday... High pressure will continue to build over the Florida peninsula from the eastern US through the period. Locally, drier air (forecast PW values (Precipitable Water values) around 0.8-1.2") will settle over the area, resulting in mostly dry conditions (rain chances less than 10 percent each day) over land areas through mid-week. However, isolated showers will continue to be possible over the Atlantic waters each day. North to northeast winds at 5-10 mph on Tuesday will veer north to northwest on Wednesday, and west to northwest on Thursday. Cooler conditions into mid-week with seasonable to slightly below normal temperatures are forecast. Afternoon highs will be in the upper 60s to low 70s across the north, and low to mid 70s across the south Tuesday and Wednesday, before warming slightly on Thursday to low to mid 70s. Overnight lows will be range from mid to upper 40s to low 50s across the interior, and low to upper 50s along the coast. Marine Issued at 134pm EST Thu Dec 4 2025 Today-Monday... Generally favorable boating conditions through the weekend, with conditions deteriorating Monday due to a cold front pushing through the local waters Sunday night into Monday. High pressure will continue to build across the local waters through late week before shifting southward during the weekend. N/NE winds at around 10 KT today will begin to increase on Friday as the pressure gradient tightens. Winds will veer S/SW and increase to 10-15 KT on Friday through Sunday before becoming W/NW on Monday and increasing to 10-15 KT nearshore and 15-20 KT offshore. Seas 2-4 ft today, increasing to 5ft in the offshore waters on Friday before decreasing back to 2-4 ft on Saturday. Seas build on Sunday to 5ft in the offshore waters, and 4-5ft in the nearshore and up to 8ft in the offshore waters on Monday. Small Craft Advisories and cautionary headlines will likely be needed. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...None. AM...None. |
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