Marine Weather Net

Volusia-Brevard County Line to Sebastian Inlet out 20 NM Marine Forecast


TODAY

W
WINDS
5 KNOTS

TONIGHT

SE
WINDS
5 - 10
KNOTS

SUNDAY

S
WINDS
5 KNOTS

SUNDAY NIGHT

SE
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
AMZ552 Forecast Issued: 345 AM EDT Sat Aug 08 2020

Today...West Winds 5 Knots Becoming Onshore 5 To 10 Knots In The Afternoon. Seas 1 To 2 Feet With A Dominant Period 9 Seconds. A Light Chop On The Intracoastal Waters. Slight Chance Of Showers And Thunderstorms In The Afternoon.
Tonight...Southeast Winds 5 To 10 Knots Becoming South After Midnight. Seas 1 To 2 Feet With A Dominant Period 8 Seconds. Mostly Smooth On The Intracoastal Waters. Slight Chance Of Showers And Thunderstorms In The Evening.
Sunday...South Winds 5 Knots Becoming East In The Afternoon. Seas 1 To 2 Feet With A Dominant Period 7 Seconds. A Light Chop On The Intracoastal Waters. Slight Chance Of Showers And Thunderstorms.
Sunday Night...Southeast Winds 5 To 10 Knots Becoming South After Midnight. Seas 1 To 2 Feet. Mostly Smooth On The Intracoastal Waters. Slight Chance Of Showers And Thunderstorms In The Evening.
Monday...Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. A Light Chop On The Intracoastal Waters. Slight Chance Of Showers And Thunderstorms In The Morning, Then Chance Of Showers And Thunderstorms In The Afternoon.
Monday Night...Southeast Winds 5 To 10 Knots Becoming South After Midnight. Seas 1 To 2 Feet. Slight Chance Of Showers And Thunderstorms.
Tuesday...South Winds 5 Knots Becoming Southeast In The Afternoon. Seas 1 To 2 Feet. Chance Of Showers And Thunderstorms.
Tuesday Night...South Winds 5 To 10 Knots. Seas 1 To 2 Feet. Slight Chance Of Showers And Thunderstorms.
Wednesday...Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. Chance Of Showers And Thunderstorms.
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Synopsis for Atlantic coastal waters from Flagler Beach to Jupiter Inlet out 60 nm - AMZ500
1032 AM EDT Sat Aug 8 2020

High pressure will bring favorable open water boating conditions this weekend into early next week. Only isolated late night and morning storms are expected mainly over the Gulf Stream.

Gulf Stream Hazards: None.
The approximate location of the west wall of the Gulf Stream based on the Real Time Ocean Forecast System as of Wednesday, August 5th.
39 nautical miles east of Ponce Inlet.
28 nautical miles east of Port Canaveral.
23 nautical miles east of Sebastian Inlet.
14 nautical miles east of Fort Pierce Inlet. 8 nautical miles east of Saint Lucie Inlet.
Area Forecast Discussion
National Weather Service Melbourne FL
340am EDT Sat August 8 2020

Today and Tonight...Broad ridge extending from the Wrn Atlantic basin across the FL peninsula will provide for light winds. By midday sea breezes will develop along both coasts along with other localized boundaries. Abundant moisture and surface heating will lead to development of showers and lightning storms just inland from the coast by early afternoon with slow to erratic movement. The Probability of Precipitation forecast once again favors inland zones for rain coverage and amounts. Storms will have a better chance of nearing the east coast over Volusia county late today. Given the slow movement expected, there is a chance of locally heavy rainfall across inland sites, including the I-4 corridor, Metro Orlando and Osceola county. Highs will make it into the L-M 90s most areas before onset of seabreezes and rain chances. Storms will steadily taper off in coverage past nightfall with most all activity ending over land by 11 PM.

Sun-Mon...The area will be between high pressure over the Gulf and subtropical ridge to the east, keeping a light and somewhat variable wind flow across the region. These weaker winds will allow the sea breeze boundaries to develop along both coasts and push inland, with greatest chance for showers and storms across the interior through late afternoon and sunset as sea breeze and storm outflow boundaries collide. Have Probability of Precipitation ranging from 50-60 percent over the interior, dropping to 40 percent along much of the coast. Models do show some drier air nosing in from the east toward the Lake Okeechobee region on Sunday, so will have rain chances slightly lower around 30 percent directly along the Treasure Coast. Gradual inland movement of the east coast sea breeze and delay in highest storm coverage until later in the day will allow highs to reach the upper 80s to low 90s along the coast to low-mid 90s inland.

Tue-Fri...Ridge axis of high pressure over the west Atlantic will remain across the area into mid week, but will then shift just north of central Florida later in the week. PW values (Precipitable Water values) around 1.8-2.0 inches will largely remain in place Tue-Wed, keeping storm coverage above normal (PoPs up to 60-70%) across the interior from late day boundary collisions. Latest GFS shows a stronger onshore flow developing into late week, which may decrease storm coverage somewhat as afternoon convection concentrates more toward the interior and western side of the FL peninsula. However, ECMWF (European Centre for Medium-Range Weather Forecasts) remains a little more wet for the region, and for now have stayed closer to NBM guidance for rain chances Thu-Fri, up to 50-60 percent. Highs will remain near to above normal through the period.

Marine
Today and Tonight...Favorable weekend conditions expected over the open waters. Very weak flow pattern light and variable early becoming onshore at 10kt near the coast in the afternoon with the sea breeze. Seas 1-2ft, with the threat for any offshore moving storms mainly near the Volusia intracoastal and nearshore waters late today.

Sun-Wed...Surface ridge axis of high pressure over the west Atlantic will generally remain extended across central Florida from Sunday through middle of next week. This will continue favorable boating conditions across the coastal waters, with light southerly winds each morning around 5 to 10 knots becoming E/SE into the afternoon as the east coast sea breeze forms and moves inland. Seas will remain around 1-2 feet.

NOAA Melbourne FL Office: Watches - Warnings - Advisories
FL...None. AM...None.