Sebastian Inlet to Jupiter Inlet out 20nm Marine Forecast
| Rest Of Tonight...South Winds 5 To 10 Knots, Becoming Northwest Early This Morning. Seas 2 Feet. Wave Detail: Southeast 2 Feet At 3 Seconds And Northeast 1 Foot At 8 Seconds. Mostly Smooth On The Intracoastal Waters. A Chance Of Showers And Thunderstorms This Evening. |
| Monday...North Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 3 Seconds And Northeast 2 Feet At 15 Seconds. A Light Chop On The Intracoastal Waters. |
| Monday Night...Northeast Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Northeast 4 Feet At 9 Seconds And Northeast 2 Feet At 14 Seconds. A Light Chop On The Intracoastal Waters. |
| Tuesday...Northeast Winds 5 To 10 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Wave Detail: Northeast 4 Feet At 9 Seconds And Northeast 1 Foot At 13 Seconds. A Light Chop On The Intracoastal Waters. |
| Tuesday Night...East Winds 5 To 10 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Northeast 4 Feet At 9 Seconds. Mostly Smooth On The Intracoastal Waters. |
| Wednesday...Southeast Winds 5 To 10 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Northeast 4 Feet At 12 Seconds. A Light Chop On The Intracoastal Waters. |
| Wednesday Night...South Winds 10 To 15 Knots, Becoming Southwest After Midnight. Seas 3 To 5 Feet, Occasionally To 6 Feet. A Light Chop On The Intracoastal Waters. |
| Thursday...Southwest Winds 5 To 10 Knots, Becoming Southeast 10 To 15 Knots In The Afternoon. Seas 3 To 4 Feet. A Moderate Chop On The Intracoastal Waters. |
| Thursday Night...South Winds 10 To 15 Knots, Becoming West 5 To 10 Knots After Midnight. Seas 3 To 4 Feet. A Light Chop On The Intracoastal Waters. |
| Friday...North Winds 5 To 10 Knots, Becoming Southeast 10 To 15 Knots In The Afternoon. Seas 3 To 4 Feet. A Moderate Chop On The Intracoastal Waters. |
| Friday Night...South Winds 10 To 15 Knots. Seas 3 To 4 Feet. A Light Chop On The Intracoastal Waters. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Melbourne FL 748pm EDT Sunday April 26 2026 Issued at 235pm EDT Sunday April 26 2026 Today - Tonight An upper level trough across the eastern US will steadily push eastward and off the coast into the Atlantic through the day. Much like yesterday, several rounds of shortwave energy will travel across the Florida peninsula through the period. Surface high pressure in the western Atlantic will continue to weaken as its axis loosely remains over the Florida peninsula. Locally, winds will turn southwest to westerly with the sea breeze pattern continuing. However, due to the dominate offshore flow, the west coast sea breeze will dominate, with the east coast sea breeze remaining pinned near I-95 in the afternoon. Although some models are showing a little farther penetration of the sea breeze. Forecast PW values (Precipitable Water values) will be around 1.2-1.3" this afternoon, which will support afternoon showers and storms. There is a medium (30-50 percent) chance of rain in the afternoon across ECFL. The greatest potential for storms will be across the interior and especially across the Treasure Coast counties and in vicinity of Lake Okeechobee where the sea breeze collision is forecast to occur with additional development between outflow boundaries and the sea breeze. There is a strong storm environment environment in vicinity of and just west of the I-95 corridor late in the day, with forecast soundings showing plenty of instability (1200-1600+ J/kg of MUCAPE), cooler temperatures aloft (-10 to -11C at 500mb), negative lifted index values, as well as a decent dry layer in the mid to upper levels which will support downdraft potential (DCAPE around 1000- 1200 J/kg). Because of this, stronger storms (especially those that are coupled with the passing shortwave energy) will be capable of producing frequent lightning strikes, gusty winds of 40-55 mph, brief heavy downpours, and small hail should updrafts be able to overcome the layer of dry air aloft. Any lingering activity will push back towards the coast and offshore through early evening with dry conditions developing overnight. The warming trend continues with afternoon highs in the mid to upper 80s, maybe even a couple locations near 90 degrees. A Minor HeatRisk will expand to most of east central Florida on Sunday. Overnight lows will increase slightly, especially across the south, with lows generally in the 60s. Monday-Monday night...An upper level trough across the Ohio Valley will push eastward towards the eastern seaboard through the day. At the surface, a strengthening low pressure system off the eastern US coast will push a cold front across east central Florida through the day. Current model guidance shows the cold front reaching our northern counties by early morning/sunrise and then steadily pushing southward through the day, clearing ECFL by early evening. Locally, north to northeast winds will increase to around 10 mph by late morning as the cold front pushes through. Moisture will remain sufficient (PW values (Precipitable Water values) around 1.0-1.3") to support showers and storms with the frontal boundary. There is a low to medium (20-30 percent) chance of showers and storms through the day, with dry air building behind the boundary. Forecast sounding show adequate instability along the coast (600-900 J/kg of MUCAPE),cooler temperatures aloft ( -10 to -11C at 500mb), negative lifted index values, as well as sufficient downdraft potential (DCAPE around 700-900 J/kg). Because of this, stronger storms will be capable of producing frequent lightning, gusty winds of 40-40 mph, and small hail. Temperatures will be a few degrees cooler due to the northeast flow and increasing cloud cover, brining temperatures closer to normal along the coast (low to mid 80s) and through the Orlando metro area (mid 80s). However, temperatures will remain above normal (mid to upper 80s) across the far interior, including portions of western Lake/Osceola, and Okeechobee as well as the western portions of the Treasure Coast. Tuesday-Sunday... An upper level trough across the eastern US will push eastward and off the eastern seaboard on Tuesday. An upper level low pressure over Canada will drop down into the Great Lakes region mid to late week before it deepens across the Mid Atlantic States and moves out into the Atlantic by late week/early weekend. At the surface, high pressure will continue to build down from the eastern US across the Florida peninsula and remain in place through mid week. Models are coming into better agreement that a cold front across the Deep South will then approach the local area on Thursday. However, uncertainty remains in how cleanly the front will pass through, with WPC showing the front clearing ECFL by early Friday morning. Another cold front (perhaps a little stronger than the previous front) will approach the local area Saturday, pushing through ECFL on Sunday. Drier air behind the front on Monday will keep conditions dry through mid week. Rain chances then return on Thursday with the next frontal passage, with lingering moisture maintaining scattered showers and storms each day through the weekend. Due to the fact that the trend in rain chances have increased through that time frame, additional increases in rain chances are possible in future forecast packages. Will continue to monitor those trends carefully. As of now, the highest rain chances (50 percent area wide) occur on Sunday with the frontal passage. Temperatures will be on a general warming trend through early weekend. Afternoon highs will reach low 90s across the interior by mid week, with low 90s expanding across much of ECFL by Saturday. Temperatures cool down slightly on Sunday behind the front, with temperatures becoming near normal from Brevard to Osceola northward, and slightly above normal across the Treasure Coast and Okeechobee counties. Overnight lows will be near to slightly above normal with lows generally in the 60s with low 70s possible by the weekend along the southern Treasure Coast. Marine Issued at 235pm EDT Sunday April 26 2026 Today-Thursday... Favorable boating conditions through Sunday before seas begin to build again as a weak cold front moves through, producing poor to hazardous boating conditions. Light winds shift south to southeast (onshore) each afternoon as the sea breeze develops. Seas 2-3 ft through Sunday before building up to 7 ft in the offshore waters on Monday with the frontal passage. Seas begin to gradually decrease on Tuesday, with seas subsiding to 4-6 ft on Tuesday, 3-5ft on Wednesday, and 2-4ft on Thursday as high pressure builds over the local waters. South to southeast winds today will shift north to northeast on Monday behind the front. Winds will then shift north to northeast on Tuesday, south to southeast on Wednesday, and westerly on Thursday as another front approaches and pushes through the local waters. Speeds will generally be around 10 KT. Isolated to scattered showers and storms are forecast across the local waters this afternoon and evening with isolated showers possible on Monday and again on Thursday, but mainly north of Cape Canaveral as the next front moves through. Mostly dry conditions Tuesday and Wednesday. A Small Craft Advisory and Small Craft Exercise Statements will most likely be needed on Monday as seas build to 7 ft. Fire Weather Issued at 301am EDT Sunday April 26 2026 Light westerly flow will push the west coast sea breeze far inland today, eventually colliding with the east coast breeze just west of the I-95 corridor. Scattered showers and storms are forecast along the collision late this afternoon and evening with a few storms becoming strong. New fire starts are a concern with lightning activity today. Winds shift overnight, becoming northeast 10-15 mph behind a cold front passage tomorrow. MinRH recovers today and tomorrow before a drier airmass builds again Tuesday into mid week. Good to very good smoke dispersion is forecast early this week. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...None. AM...None. |
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