Volusia-Brevard County Line to Sebastian Inlet 20 - 60 NM Marine Forecast
| Rest Of Today...West Winds 10 To 15 Knots, Becoming Southwest 5 To 10 Knots Late This Morning And Afternoon. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms This Morning, Then A Chance Of Showers And Thunderstorms This Afternoon. |
| Tonight...Southwest Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Tuesday...Southwest Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms In The Afternoon. |
| Tuesday Night...Southwest Winds 15 To 20 Knots. Seas 3 To 4 Feet. |
| Wednesday...Southwest Winds 15 To 20 Knots. Seas 3 To 4 Feet. A Slight Chance Of Showers And Thunderstorms In The Afternoon. |
| Wednesday Night...Southwest Winds 15 To 20 Knots. Seas 3 To 4 Feet. A Chance Of Showers. A Chance Of Thunderstorms In The Evening, Then A Slight Chance Of Thunderstorms After Midnight. |
| Thursday...Southwest Winds 15 To 20 Knots. Seas 3 To 4 Feet. A Chance Of Showers And Thunderstorms In The Morning, Then Showers And Thunderstorms Likely In The Afternoon. |
| Thursday Night...Southwest Winds 15 To 20 Knots. Seas 2 To 3 Feet. A Chance Of Showers And Thunderstorms. |
| Friday...Southwest Winds 10 To 15 Knots. Seas 2 To 3 Feet. Showers Likely. A Chance Of Thunderstorms In The Morning, Then Thunderstorms Likely In The Afternoon. |
| Friday Night...Southwest Winds 10 To 15 Knots. Seas 2 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 658am EDT Monday July 27 2026 Issued at 201am EDT Monday July 27 2026 Today - Tonight Troughiness off of the eastern US sea board is forecast today, as strong ridging persists over the central portion of the country. Locally, SW flow prevails, increasing into the afternoon, but remaining near to under 10 mph overall. Regardless, this is expected to be enough to limit the inland extent of the east coast sea breeze today. Thus, there will be little relief from hot and humid temperatures, as highs rise into the 90s. Heat indices up to 109 degrees are forecast from Orange and northern Brevard Counties northward, where a Heat Advisory has been issued, but heat indices 102-107+ are forecast area-wide. When possible, reschedule strenuous activities to early morning or evening today. A limiting factor to the heat will be coverage of showers and storms. CAMs have been consistent in developing an early cluster of showers and storms along the Nature Coast near sunrise, which then moves SW through central Florida into the early afternoon. This activity will likely drive the heat chances today, though the highest coverage is forecast to be along the western half of the peninsula with this first round. The thinking is that this coverage will be widely scattered enough and/or there will be a long enough gap in between rounds of convection to allow temperatures to recover and reach Heat Advisory criteria in the advisory area. Regardless, additional showers and storms are then forecast to develop in the mid to late afternoon, with PoPs generally 40-60% overall today. Storms will be capable of producing frequent lightning strikes, wind gusts up to 50 mph, and heavy downpours that may lead to localized flooding. Activity will move offshore and diminish through the evening and overnight hours. Tuesday-Wednesday...Low pressure drops through the Great Lakes mid-week, flattening the upper level Plains ridge axis over the Florida peninsula. Meanwhile, the Atlantic ridge axis remains south of east central Florida. The pressure gradient tightens between these features through the period, increasing SW flow from around 10 mph Tuesday afternoon to 15 mph, with gusts 20-25 mph, on Wednesday afternoon. Ample moisture (PWATs (Precipitable Waters) 2-2.15") and the pinned east coast sea breeze will maintain Probability of Precipitation 40-60% Tuesday, before increased convergence aloft keeps Probability of Precipitation 30-40% Wednesday. A few strong storms will remain possible, with drier air aloft leading to DCAPE values near 1000 J/kg. Other storm hazards will include lightning strikes and locally heavy downpours, which could produce some localized flooding. W steering flow will see activity push offshore in the afternoon and evening hours, with drier conditions overnight. Hot temperatures in the 90s will continue through mid-week. While any showers or storms will be a limiting factor to heat, near to even slightly below normal Probability of Precipitation will still allow for heat indices to exceed 100 degrees. Will continue to monitor the need for additional Heat Advisories for at least portions of the area. The hottest day this week looks to be Wednesday. Continue to practice heat safety, regardless of whether a Heat Advisory is issued. Thursday-Sunday...The Atlantic ridge axis remains across the Straits of Florida Thursday, as a low pressure system moves offshore from the Northeast. Aloft, a mid/upper level trough digs through the Southeast and into Florida, despite the associated cold front stalling near to just north of the local area. Upper level support and PWATs (Precipitable Waters) near 2" will lead to higher coverage of showers and storms to end the week. Probability of Precipitation 50-70% across the area will linger into Saturday, as continued breezy SW flow pins the east coast sea breeze. Will see a break from the hotter heat indices due to higher coverage of clouds and precipitation. However, highs are still forecast to reach the lower 90s each afternoon. Coverage of showers and storms returns to nearer to normal (40-60%) Sunday into early next week, as ridging develops aloft. Marine Issued at 201am EDT Monday July 27 2026 Today-Tuesday...Generally favorable boating conditions prevail early this week, as the Atlantic ridge axis remains south of the local area. SW flow will increase to around 10 kts, especially in the afternoons, preventing the east coast sea breeze from developing. Near normal shower and thunderstorm coverage (40-60%) is forecast, with activity developing over land, then moving offshore in the afternoons and evenings. Seas 2-3 ft. Tuesday Night-Saturday...A low pressure system moves offshore from the Northeast US mid-week, tightening the pressure gradient locally. SW flow increases to 15-20 kts Tuesday night through Thursday night. Winds could reach 20-25 kts briefly Wednesday night well offshore. Seas build to 2-4 ft, with up to 5 ft possible north of Sebastian Inlet Wednesday night. Boating conditions improve into Friday and the weekend, as SW flow diminishes and seas return to 1-3 ft. However, will see an increase in shower and thunderstorm coverage through the period, with activity moving offshore. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL... Heat Advisory from 11am this morning to 8pm EDT this evening for FLZ041-044>046-141-144-247-347-447. AM...None. |
Melbourne Radar
Southeast Radar