Volusia-Brevard County Line to Sebastian Inlet out 20 NM Marine Forecast
| Today...Variable Winds Around 5 Knots, Becoming East 5 To 10 Knots This Afternoon. Seas 1 To 2 Feet. Wave Detail: Southeast 1 Foot At 3 Seconds And Northeast 1 Foot At 9 Seconds. A Light Chop On The Intracoastal Waters. |
| Tonight...East Winds 5 To 10 Knots, Becoming Northwest After Midnight. Seas 2 Feet. Wave Detail: East 1 Foot At 4 Seconds And Northeast 1 Foot At 8 Seconds. Mostly Smooth On The Intracoastal Waters. |
| Sunday...Northwest Winds 5 To 10 Knots, Increasing To 10 To 15 Knots In The Afternoon. Seas 2 To 3 Feet. Wave Detail: North 2 Feet At 3 Seconds And East 2 Feet At 9 Seconds. A Moderate Chop On The Intracoastal Waters. A Slight Chance Of Showers. |
| Sunday Night...North Winds 25 To 30 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet, Building To 7 To 9 Feet, Occasionally To 11 Feet After Midnight. Wave Detail: Northeast 6 Feet At 9 Seconds, Becoming North 9 Feet At 8 Seconds After Midnight. Very Rough On The Intracoastal Waters. A Slight Chance Of Showers And Thunderstorms After Midnight. |
| Monday...Northeast Winds 20 To 25 Knots, Diminishing To 15 To 20 Knots In The Afternoon. Seas 8 To 9 Feet, Occasionally To 11 Feet, Subsiding To 6 To 8 Feet, Occasionally To 10 Feet In The Afternoon. Wave Detail: Northeast 9 Feet At 10 Seconds, Becoming Northeast 8 Feet At 10 Seconds In The Afternoon. Rough On The Intracoastal Waters. A Slight Chance Of Showers. |
| Monday Night...Northeast Winds 10 To 15 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Wave Detail: Northeast 6 Feet At 10 Seconds. A Light Chop On The Intracoastal Waters. |
| Tuesday...Northeast Winds Around 10 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. A Light Chop On The Intracoastal Waters. |
| Tuesday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet. Mostly Smooth On The Intracoastal Waters. |
| Wednesday...East Winds 5 To 10 Knots. Seas 3 To 4 Feet. A Light Chop On The Intracoastal Waters. |
| Wednesday Night...Southeast Winds 5 To 10 Knots. Seas 3 Feet. Mostly Smooth On The Intracoastal Waters. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Melbourne FL 634am EST Sat Dec 13 2025 Issued at 345am EST Sat Dec 13 2025 Today/tonight...High pressure ridge axis draped across north central FL will weaken and push seaward. Dry conditions persist today with light winds turning onshore in a sea breeze around 10 mph south of the Cape. There will be some increase in high clouds filtering the sun at times as well as some fair weather cumulus. Max temps will warm into the mid and upper 70s, slightly above normal for mid Dec. Tonight, moisture lifts northward from south FL. Along with considerable cloudiness there will be scattered showers and possibly a storm or two after midnight lifting northward into Okeechobee and Treasure coast counties. Across northern sections, there is a better chance for fog across Volusia county, spreading southward toward metro Orlando. Sun-Mon...Ongoing showers across southern sections Sunday morning will move NE and offshore onto the Atlantic as a cold front pushes steadily southward across the area during the day. A NW breeze will develop initially behind the front. Then strong high pressure (1040mb) over the central US builds SE into FL and tightens the NW-N pressure gradient late Sunday and esp Sunday night. This will result in a period of windy conditions along the coast with Wind Advisories likely Sunday night into early Monday. While it will become noticeably cooler with max temps holding in the 60s on Monday, because the winds turn onshore so quickly, the cold continental airmass will rapidly modify over EC FL sparing us any freeze concerns. These strong N/NE winds will produce rough, pounding surf and minor beach erosion Sunday night into Mon. Fortunately the duration will be very short as the high pressure weakens steadily as it reaches the Carolina coast late Mon. The high tide of most concern will be early Monday between 4am-5am. A High Surf Advisory may be needed for breaking waves of 7-9 FT. Tue-Fri...The high pressure will shift eastward over the Atlc. A trailing ridge axis will remain near 30N lat so a general easterly flow will dominate Tue-Wednesday at 10-15 mph veering SE Thu 10 mph. The next cold front is forecast to approach Fri but lack of moisture looks to limit rain chances. Temperatures will undergo a warming trend each day reaching the upper 70s/near 80 Thu (mid 70s coastal Volusia). Lows will generally be in the 50s, holding in the lower 60s along the coast by Thu morning. Marine Issued at 345am EST Sat Dec 13 2025 High pressure ridge across the northern (Volusia) waters will produce favorable boating conditions again today. Light and variable winds will turn northeast to east up to 10 knots this afternoon. Seas 1-2 FT nearshore and up to 3 FT offshore Treasure coast. Scattered showers and a few storms will lift north into the southern (Treasure coast) waters tonight and Sunday ahead of a cold front. This next front will sweep across the waters during Sunday with a NW wind shift. Winds will increase out of the north late Sunday and Sunday night as strong high pressure builds over the waters behind the cold front. The tight north-northeast pressure gradient will support wind speeds 20-30 KT with gusts to Gale force Sunday night. Seas will rapidly build 6-9 FT nearshore (up to 10 FT nearshore Volusia) and up to 13 ft in the Gulf Stream. NE winds decrease 15-20 KT by late Monday and 10-15 KT Tuesday as pressure gradient eases. High pressure pushes out to sea Wednesday and winds veer Easterly remaining 10-15 KT. Seas will be slower to subside, reaching 4-5 FT nearshore Tuesday with seas falling below 7 FT in the Gulf Stream late in the day. Seas Wednesday 3 FT nearshore and 4 FT offshore. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...None. AM...None. |
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