Volusia-Brevard County Line to Sebastian Inlet out 20 NM Marine Forecast
|Tonight...East Winds 20 Knots. Seas 7 To 10 Feet With A Dominant Period 13 Seconds. Choppy On The Intracoastal Waters. Slight Chance Of Sprinkles.|
|Sunday...East Winds 15 To 20 Knots. Seas 6 To 9 Feet With A Dominant Period 13 Seconds. Choppy On The Intracoastal Waters.|
|Sunday Night...East Winds 10 To 15 Knots. Seas 5 To 7 Feet With A Dominant Period 12 Seconds. A Light Chop On The Intracoastal Waters.|
|Monday...Northeast Winds 10 To 15 Knots. Seas 4 To 6 Feet. A Moderate Chop On The Intracoastal Waters.|
|Monday Night...Northeast Winds 10 To 15 Knots Diminishing To 5 To 10 Knots After Midnight. Seas 4 To 6 Feet. A Light Chop On The Intracoastal Waters.|
|Tuesday...Northeast Winds 5 To 10 Knots. Seas 3 To 5 Feet. A Light Chop On The Intracoastal Waters.|
|Tuesday Night...East Winds 5 To 10 Knots Becoming South After Midnight. Seas 3 To 4 Feet.|
|Wednesday...Southwest Winds 5 Knots Becoming East 5 To 10 Knots In The Afternoon. Seas 3 To 4 Feet.|
|Wednesday Night...South Winds 5 To 10 Knots. Seas 2 To 3 Feet.|
|Thursday...South Winds 5 Knots Becoming Southeast 5 To 10 Knots In The Afternoon. Seas 2 To 3 Feet.|
Synopsis for Atlantic coastal waters from Flagler Beach to Jupiter Inlet out 60 nm - AMZ500|
814 PM EDT Sat Sep 21 2019
Large northeast swells will combine with moderate to fresh easterly winds to produce hazardous boating conditions on the Atlantic and intracoastal waters through the weekend.
Gulf Stream Hazards: East to east-northeast winds around 20 knots with higher gusts through tonight. Combined seas 10 to 11 feet.
The approximate location of the west wall of the Gulf Stream based on the Real Time Ocean Forecast System as of Wednesday September 18th. 50 nautical miles east of Ponce Inlet.
41 nautical miles east of Port Canaveral.
31 nautical miles east of Sebastian Inlet.
25 nautical miles east of Fort Pierce Inlet.
20 nautical miles east of Saint Lucie Inlet.
Area Forecast Discussion|
National Weather Service Melbourne FL
351am EDT Sunday September 22 2019
...Hazardous Boating and Surf Conditions Continue Today... Today - Tonight
Dry conditions expected over the next 24 hours with high pressure well in control. Precipitable water is forecast to be between 0.75" and 0.90" across the area with forecast soundings continuing to show a very strong subsidence inversion right around 900 mb (approx. 4000 ft AGL). Except the small possibility of a few sprinkles possible along the coast, no other precipitation will develop in this environment. E/ENE will become breezy again by late morning with speeds 15-20 mph gusting to around 25 mph through the early evening hours. Skies will range from partly sunny to partly cloudy with temperatures in the mid 80s along the coast and upper 80s to near 90 inland.
Winds will gradually diminish after sunset but are expected to stay up for a while longer along the Space and Treasure Coasts. With lighter winds, less cloud cover, and dewpoints forecast to be in the mid 60s, temperatures will likely fall into the mid-upper 60s over inland areas tonight. This would be the coolest night since late May for many areas. Along the coast, temperatures should stay in the low to mid 70s, especially where the winds do not drop off as much.
Conditions are still hazardous at area beaches. A High Surf Advisory remains in effect for rough, pounding surf along with a high risk for rip currents.
Mon-Tue...A very dry airmass will remain in place, with no rain chances forecast. Max temps will warm slightly but remain near normal, ranging from the mid-upper 80s along the coast to upper 80s/low 90s across the interior through the period.
Extended...Not much change in the pattern with a dominant ridge over the SE through this upcoming week. The feature will become quite broad while extending northward across Mid Atlantic region during the latter half of the week. A gentle onshore flow will keep temperature range restricted, especially near the coast with rain chances in the absence of any notable moisture return remaining silent until late in the week. Some small rain chances will begin to develop around Fri into Sat as moisture creeps back into the area underneath the ridge in a developing SE flow. Expect highs in the U80s to L90s with lows in the 70s.
Today - Tonight
Hazardous conditions still in place, but winds and seas are expected to follow a gradual downward trend. The Small Craft Advisory will expire for the Volusia nearshore waters at 20Z/4pm this afternoon only to be replaced with a cautionary statement. The Small Craft Advisory for the Brevard and Treasure Coast nearshore waters has been extended through tonight, and for all offshore zones, through Monday afternoon.
Tue-Extended...Headlines for wind/wave combinations near 6 ft should finally be lowered incrementally over the waters early in the week. Decaying swell should continue to make up the primary wave component into at least Wed. High pressure as dominant feature locally will bring favorable sea conditions for the area due to rather light winds from midweek onward.
A River Flood Warning remains in effect for the St Johns River at Astor. The river level on the St Johns River at Astor is forecast to remain nearly steady today and then slowly decline through the early to middle part of this week. The river level at Astor will remain in Minor Flood Stage the next five days.
NOAA Melbourne FL Office: Watches - Warnings - Advisories
FL...High Surf Advisory until 8pm EDT this evening for Coastal Volusia-Indian River-Martin-Northern Brevard-Southern Brevard-St. Lucie.
AM...Small Craft Advisory until 4pm EDT this afternoon for Flagler Beach to Volusia-Brevard County Line 0-20 nm.
Small Craft Advisory until 4am EDT Monday for Sebastian Inlet to Jupiter Inlet 0-20 nm-Volusia-Brevard County Line to Sebastian Inlet 0-20 nm.
Small Craft Advisory until 4pm EDT Monday for Flagler Beach to Volusia-Brevard County Line 20-60 nm-Sebastian Inlet to Jupiter Inlet 20-60 nm-Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.