Volusia-Brevard County Line to Sebastian Inlet 20 - 60 NM Marine Forecast
| Tonight...South Winds 5 To 10 Knots, Becoming Southwest 10 To 15 Knots After Midnight. Seas 2 To 3 Feet. Wave Detail: Southwest 2 Feet At 3 Seconds And East 2 Feet At 9 Seconds. |
| Monday...West Winds 5 To 10 Knots, Becoming South In The Afternoon. Seas 2 To 3 Feet. Wave Detail: South 2 Feet At 3 Seconds And Northwest 2 Feet At 3 Seconds. |
| Monday Night...Southwest Winds 5 To 10 Knots, Becoming West 10 To 15 Knots After Midnight. Seas 2 To 3 Feet. Wave Detail: Northwest 2 Feet At 3 Seconds And East 2 Feet At 9 Seconds. |
| Tuesday...West Winds 10 To 15 Knots, Becoming Southwest 5 To 10 Knots In The Afternoon. Seas 2 To 3 Feet. Wave Detail: Northwest 2 Feet At 4 Seconds And East 2 Feet At 10 Seconds. A Slight Chance Of Showers And Thunderstorms In The Afternoon. |
| Tuesday Night...West Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: Northwest 2 Feet At 4 Seconds And East 2 Feet At 10 Seconds. |
| Wednesday...West Winds 5 To 10 Knots, Becoming South In The Afternoon. Seas 2 To 3 Feet. Wave Detail: Northwest 2 Feet At 4 Seconds And East 2 Feet At 9 Seconds. A Slight Chance Of Showers And Thunderstorms In The Morning. |
| Wednesday Night...South Winds 5 To 10 Knots. Seas 2 Feet. A Slight Chance Of Showers And Thunderstorms In The Evening. |
| Thursday...Southwest Winds Around 5 Knots, Becoming South In The Afternoon. Seas 2 Feet. |
| Thursday Night...South Winds Around 10 Knots. Seas 2 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Friday...Southwest Winds 5 To 10 Knots, Becoming South In The Afternoon. Seas 2 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Friday Night...South Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Chance Of Showers And Thunderstorms In The Evening, Then A Slight Chance Of Showers And Thunderstorms After Midnight. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Melbourne FL 244pm EDT Sunday August 16 2026 ...New KEY MESSAGES,ARINE,Climate .KEY MESSAGES... Issued at 244pm EDT Sunday August 16 2026 - A Heat Advisory remains in effect for all east central Florida counties through 8pm for peak heat indices of 108F to 112F. Practice heat safety! - Heat concerns persist across east central Florida over the next couple of days thanks to above-normal afternoon highs and peak heat indices nearing or reaching Heat Advisory criteria. - Increasing moisture will promote a more seasonable pattern of scattered showers and storms areawide from Tuesday onward. Issued at 244pm EDT Sunday August 16 2026 Current - Tonight GOES-19 PWAT (Precipitable Water) imagery indicates a sharp moisture gradient across central Florida this afternoon with values ranging 2.0-2.1" from Cape Canaveral and Orlando northward and as low as 1.5" further south through Okeechobee and the Treasure Coast. Isolated showers have developed within the deepest moisture across north-cental Florida as the east and west coast sea breezes move inland. Expect more isolated to widely scattered showers and storms near and north of a line from Melbourne to Kissimmee through the afternoon and evening, driven by increased surface heating and a few boundary interactions. A few strong storms which may develop will be capable of wind gusts 35-50 mph, frequent lighting, and locally heavy rainfall. Otherwise, hot conditions continue with highs on track to reach the mid to upper 90s across the interior, and a Heat Advisory continues through 8PM this evening for peak heat index values of 108-112F. Isolated convection along the sea breeze collision may linger into the evening, but dry conditions are expected overnight. Low temperatures should mostly range the mid to upper 70s. Monday... Hot conditions continue as ridging holds mostly stagnant aloft. At the surface, a ridge axis shifts south of the area as a weak frontal boundary sinks into the southeast U.S. This will favor light offshore flow, turning southeast as a delayed sea breeze develops in the afternoon. Above normal temperatures persist with highs mostly in the mid to upper 90s. Peak heat index values widely ranging 106-110F will likely prompt the need for another Heat Advisory. Moisture advecting southward through the Orlando Metro should allow for isolated to scattered afternoon showers and storms (20-45%), providing some relief from the heat late in the day. A few strong storms which develop will be capable of isolated wind gusts 35-50 mph, frequent lighting, and torrential downpours. Drier air to the south should limit rain chances to less than 20% across much of Okeechobee and the Treasure Coast. Tuesday-Saturday... High pressure in the mid levels gradually broadens through late week as troughing digs across the midwest and into the eastern U.S. The surface ridge axis remains mostly south of the area, perhaps inching northward towards Lake Okeechobee late in the period. Offshore flow should maintain hot conditions, especially through Wednesday, as highs continue in the mid 90s across the interior with localized areas reaching the upper 90s. Temperatures then show a decreasing trend, finally returning closer to normal late week. Moisture continues to advect southward into Tuesday, prompting a more seasonal pattern of scattered afternoon showers and storms (40-60%) areawide each day. Marine Issued at 244pm EDT Sunday August 16 2026 A surface ridge axis slides south of the local waters on Monday. This will lead to a period of prevailing light offshore flow, shifting south to southeast late each day as the sea breeze develops. Seas of 1-2 ft build up to 3 ft offshore Tuesday. Isolated to scattered offshore moving storms will be possible north of the Cape on Monday, while remaining mostly dry further south. Moisture continues to spread southward on Tuesday prompting higher coverage (40-60%) of offshore moving storms areawide through late week. Climate Issued at 244pm EDT Sunday August 16 2026 Record high temperatures at local climate sites: Site August 16 August 17 Daytona 97 (2023) 96 (1990) Leesburg 96 (2011) 98 (2005) Sanford 97 (2023) 97 (2005) Orlando 101 (1918) 99 (1929) Melbourne 96 (2022) 97 (2022) Vero Beach 96 (2022) 98 (2022) Fort Pierce 97 (1948) 97 (2022) NOAA Melbourne FL Office: Watches - Warnings - Advisories FL... Heat Advisory until 8pm EDT this evening for FLZ041-044>046-053- 058-141-144-154-159-164-247-254-259-264-347-447-547-647-747. AM...None. |
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