Sebastian Inlet to Jupiter Inlet out 20nm Marine Forecast
| Rest Of Today...East Winds 15 To 20 Knots. Seas 8 To 10 Feet, Occasionally To 13 Feet. Wave Detail: Northeast 9 Feet At 12 Seconds. Choppy On The Intracoastal Waters. Showers Likely With A Chance Of Thunderstorms. |
| Tonight...East Winds 15 To 20 Knots. Seas 8 To 10 Feet, Occasionally To 13 Feet. Wave Detail: Northeast 10 Feet At 12 Seconds. Choppy On The Intracoastal Waters. Showers Likely With A Chance Of Thunderstorms. |
| Friday...East Winds 15 To 20 Knots. Seas 9 To 11 Feet, Occasionally To 14 Feet. Wave Detail: Northeast 10 Feet At 13 Seconds. Choppy On The Intracoastal Waters. Showers With A Chance Of Thunderstorms. |
| Friday Night...East Winds 15 To 20 Knots. Seas 8 To 10 Feet, Occasionally To 13 Feet. Wave Detail: Northeast 10 Feet At 13 Seconds. Choppy On The Intracoastal Waters. Showers. Thunderstorms Likely In The Evening, Then A Chance Of Thunderstorms After Midnight. |
| Saturday...East Winds 15 To 20 Knots. Seas 8 To 9 Feet, Occasionally To 11 Feet. Wave Detail: Northeast 9 Feet At 12 Seconds. Choppy On The Intracoastal Waters. Showers. A Chance Of Thunderstorms In The Morning, Then Thunderstorms Likely In The Afternoon. |
| Saturday Night...Southeast Winds 15 To 20 Knots. Seas 7 To 9 Feet, Occasionally To 11 Feet. Wave Detail: Northeast 8 Feet At 12 Seconds. Choppy On The Intracoastal Waters. Showers With A Chance Of Thunderstorms. |
| Sunday...Southeast Winds Around 15 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. A Moderate Chop On The Intracoastal Waters. A Chance Of Thunderstorms. Showers. |
| Sunday Night...Southeast Winds 10 To 15 Knots. Seas 6 To 7 Feet, Occasionally To 9 Feet. A Light Chop On The Intracoastal Waters. Showers With A Chance Of Thunderstorms In The Evening, Then Showers Likely With A Slight Chance Of Thunderstorms After Midnight. |
| Monday...East Winds 10 To 15 Knots. Seas 6 To 7 Feet, Occasionally To 9 Feet. A Moderate Chop On The Intracoastal Waters. Showers Likely With A Chance Of Thunderstorms. |
| Monday Night...East Winds 15 To 20 Knots. Seas 6 To 7 Feet, Occasionally To 9 Feet. Choppy On The Intracoastal Waters. Showers Likely With A Chance Of Thunderstorms In The Evening, Then A Chance Of Showers After Midnight. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Melbourne FL 218pm EDT Thu Oct 2 2025 Issued at 1011am EDT Thu Oct 2 2025 Heavy rainfall threat for this morning materialized across the northern counties where onshore flow increased earlier, producing training bands of moderate to at times heavy showers north of the Beachline, including the Daytona Beach area and portions of the northern Orlando Metro. Widespread rainfall amounts of 0.5-2" and locally high amounts to 4" have been occuring in these bands. This activity will gradually push west and south through the rest of the day, while additional showers and storms continue to move onshore, shifting the threat for heavy rainfall to southern coast and possibly inland by the afternoon and evening. Ponding of water on roads and minor flooding of low-lying and poor drainage areas will be the primary storm impact in this low instability/high moisture environment, with occasional cloud to ground lighting and some gusty winds also possible. Dangerous coastal and marine conditions continue, and beach goers are urged to not enter the life-threatening surf. A Small Craft Advisory remains in effect for all Central Florida Atlantic waters. Issued at 318am EDT Thu Oct 2 2025 Today-Fri...High pressure wedging down the eastern seaboard today will increase the NE-E wind flow and produce a breezy/gusty day. This onshore flow will support a moistening of the atmos and result in widespread showers and embedded storms. There is support aloft in the form of a weak nearly stationary trough as well as a developing coastal (inverted) low level trough. With MUCAPE near 1000 J/Kg and PWATs (Precipitable Waters) 1.8"-2.0", ingredients are coming together to produce a risk of excessive rainfall (with efficient rain rates) for portions of the central FL Atlantic coast. Coastal convergence as well as back-building storms forming bands of heavy rain will affect portions of the Space and Treasure coasts. Given the strength of the onshore flow, some of these showers will push well inland and affect Orlando metro. Rainfall amounts of 1-3" will occur with locally 4"+ and the highest amounts should occur near the coast. One or more Flood Advisories look likely over this period. The tightening pressure gradient around the high pressure to the north will produce northeast to east winds 15-25mph with higher gusts esp along the coast. There will not be significant diurnal range in temps esp along the coast due to very mild low temps holding in the mid to upper 70s and max temps only in the low to mid 80s. A little larger diurnal range will occur over the interior. Sat-Wed...Some model guidance show a weak low developing near the NW Bahamas Fri night and track NW across south FL Sat. NHC has started outlooking this area for low prob (10%) for tropical development. If this occurs, even a weak (non tropical) low would enhance low level convergence and heavy rain threat further across east central FL. If more heavy rain is anticipated this weekend, we may need a Flood Watch. By Sunday, the deepest moisture is forecast to lift north and the pressure gradient eases though remaining onshore. Rain chances should gradually decrease next week though remaining at least scattered (50 percent). Would not be surprised if we are able to lower Probability of Precipitation further by mid week. Temps look close to seasonable in the mid to upper 80s. Marine Issued at 318am EDT Thu Oct 2 2025 Tight NE to E pressure gradient will develop over the local Atlantic waters today around high pressure wedging down the eastern seaboard. Thus, hazardous to dangerous boating conditions are forecast to continue across the local Atlantic waters over the next several days. Wind speeds 15-25 knots with combined seas (wind wave and swell) of 7-12 feet. Small Craft Advisory (SCA) will continue through Sat for all the waters. There should be some relaxation of the pressure gradient Sun-Monday as winds turn E-SE but seas will be slow to subside so an extension of the SCA (Small Craft Advisory) appears likely to include Sunday, at least for the offshore waters. Meanwhile, moisture increases locally which will promote a high coverage of showers and isolated storms containing heavy rain and cloud to water lightning. Brief waterspouts will also be possible especially where cell mergers occur or spin-ups driven by coastal convergence. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...High Surf Advisory until 4am EDT Sunday for FLZ141-154-159-164- 347-447-647-747. AM...Small Craft Advisory until 4am EDT Sunday for AMZ550-552-555- 570-572-575. |
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