Marine Weather Net

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


TONIGHT

SW
WINDS
10 - 15
KNOTS

MONDAY

N
WINDS
15 - 20
KNOTS

MONDAY NIGHT

N
WINDS
15 - 20
KNOTS

TUESDAY

NE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
AMZ552 Forecast Issued: 858 PM EDT Sun Apr 21 2024

SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH LATE MONDAY NIGHT
Tonight...Southwest Winds 10 To 15 Knots, Becoming West In The Late Evening And Overnight. Seas 2 To 3 Feet. A Dominant Period 9 Seconds. A Light Chop On The Intracoastal Waters. A Chance Of Showers And A Slight Chance Of Thunderstorms After Midnight.
Monday...North Winds 15 To 20 Knots. Seas 2 To 3 Feet, Building To 3 To 5 Feet With Occasional Seas To 6 Feet In The Afternoon. A Dominant Period 5 Seconds. Choppy On The Intracoastal Waters. A Chance Of Showers And A Slight Chance Of Thunderstorms In The Morning, Then A Slight Chance Of Showers In The Afternoon.
Monday Night...North Winds 15 To 20 Knots. Seas 4 To 6 Feet With Occasional Seas To 7 Feet. A Dominant Period 9 Seconds. Choppy On The Intracoastal Waters.
Tuesday...Northeast Winds 10 To 15 Knots. Seas 4 To 6 Feet With Occasional Seas To 7 Feet. A Moderate Chop On The Intracoastal Waters.
Tuesday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet With Occasional Seas To 5 Feet. Mostly Smooth On The Intracoastal Waters.
Wednesday...East Winds 5 To 10 Knots. Seas 3 To 4 Feet With Occasional Seas To 5 Feet. A Light Chop On The Intracoastal Waters.
Wednesday Night...Southeast Winds 5 To 10 Knots. Seas 3 To 4 Feet With Occasional Seas To 5 Feet.
Thursday...East Winds 5 To 10 Knots, Increasing To 10 To 15 Knots In The Afternoon. Seas 2 To 3 Feet.
Thursday Night...East Winds 10 To 15 Knots. Seas 2 To 3 Feet.
Friday...East Winds 10 To 15 Knots. Seas Around 2 Feet. Winds And Waves Higher In And Near Thunderstorms.
SHARE THIS PAGE:           
Area Forecast Discussion
National Weather Service Melbourne FL
854pm EDT Sunday April 21 2024

Current-Overnight...First wave of isolated convection has pushed off of the Treasure Coast, with ECSB pinned along the immediate Space and Treasure coasts with dominant offshore flow. A cold front will approach overnight with ISOLD-SCT showers and isolated lightning storms possible. If any storms are able to develop, primary threats will be occasional lightning, gusty winds, small hail, and locally heavy downpours. Gusty SW/W afternoon winds will diminish this evening. Wind direction will veer W/NW later tonight, post-frontal. We will also see an increase in cloud-cover with ceilings lowering. By sunrise, the front should be located across our southern counties, just north of Lake Okeechobee. Overnight lows remain mild and in the 60s areawide.

Mon...Previous...Models are quicker bringing the front through our southern sections in the morning and bringing drier air into the northern sections. After collaborating with SPC, the MRGL risk for severe storms was pared back slightly to only include Okeechobee and the Treasure Coast counties. Model trends show decreasing CAPE values across the south on Monday so would not be surprised if additional adjustments are needed in the MRGL risk with a focus more on south FL. But if deep convection (thunder) can develop, fairly cold temps aloft (-10 to -11C) could produce gusty winds and hail. Gusty north winds will develop along the Volusia coast mid day behind the front as high pressure builds in, 20 mph gusting near 30 mph, and this will spread southward during the afternoon.

Marine
Overnight/Mon...We continue Cautionary Statements this evening across the offshore waters of Brevard County and the Treasure Coast for S/SW winds 15-20 kts. With a weak cold front approaching, we may see some scattered showers and isolated lightning storms developing from north to south (offshore-moving) across the local waters tonight. The cold front will promote a wind shift to out of the northwest overnight (north to south). Initial wind speeds around 15 kts will increase 18-23 kts with frequent higher gusts out of the north on Mon. A Small Craft Advisory goes into effect at 15Z/11AM Monday for all waters north of Sebastian Inlet. At 20Z/4PM the Advisory gets extended south thru Jupiter Inlet. Initial seas 2-4 ft in the period will build during the day on Monday (esp afternoon) to 4-6 ft near shore and 6-8 ft offshore (north of Sebastian Inlet). Northerly winds will diminish Monday night (north to south) as the cold front pushes further into south FL. Seas 5-6 ft Monday night near shore and 7-8 ft offshore. A few storms on Monday could be on the strong side, mainly south of Sebastian Inlet, though drier air pushing south during the day could take this threat even further south.

Fire Weather
Thru Mon...Rain chances are forecast to increase overnight into Monday ahead of an approaching weak cold front. Isolated lightning storms will also be possible. Any storms that can develop, esp Monday afternoon may be capable of producing lightning strikes, gusty winds, and small hail. West-southwest winds veering to out of the north-northwest behind the front becoming gusty along the coast. Min RH values will be greater than 55 percent along the coast and as low as 45 percent interior Mon. Afternoon smoke dispersion will be Generally Good to Very Good on Mon.

NOAA Melbourne FL Office: Watches - Warnings - Advisories
FL...None. AM...Small Craft Advisory from 11am Monday to 4am EDT Tuesday for AMZ550-552.

Small Craft Advisory from 4pm Monday to 11pm EDT Tuesday for AMZ555-575.

Small Craft Advisory from 11am Monday to 4pm EDT Tuesday for AMZ570.

Small Craft Advisory from 11am Monday to 11pm EDT Tuesday for AMZ572.