Volusia-Brevard County Line to Sebastian Inlet 20 - 60 NM Marine Forecast
| Rest Of Today...East Winds 20 To 25 Knots. Seas 10 To 12 Feet, Occasionally To 15 Feet. Wave Detail: Northeast 11 Feet At 13 Seconds And North 3 Feet At 9 Seconds. Showers Likely With A Chance Of Thunderstorms. |
| Tonight...East Winds 20 To 25 Knots. Seas 9 To 11 Feet, Occasionally To 14 Feet. Wave Detail: Northeast 11 Feet At 12 Seconds And North 3 Feet At 9 Seconds. Showers Likely. A Chance Of Thunderstorms In The Evening, Then Thunderstorms Likely After Midnight. |
| Saturday...East Winds 20 To 25 Knots. Seas 10 To 11 Feet, Occasionally To 14 Feet. Wave Detail: Northeast 11 Feet At 11 Seconds And North 2 Feet At 8 Seconds. Showers With A Chance Of Thunderstorms. |
| Saturday Night...East Winds 20 To 25 Knots, Becoming Southeast 15 To 20 Knots After Midnight. Seas 8 To 10 Feet, Occasionally To 13 Feet. Wave Detail: East 10 Feet At 9 Seconds And North 2 Feet At 8 Seconds. Showers With Thunderstorms Likely. |
| Sunday...Southeast Winds 15 To 20 Knots. Seas 8 To 9 Feet, Occasionally To 11 Feet. Wave Detail: East 9 Feet At 10 Seconds. A Chance Of Thunderstorms. Showers. |
| Sunday Night...Southeast Winds 15 To 20 Knots, Diminishing To 10 To 15 Knots After Midnight. Seas 7 To 8 Feet, Occasionally To 10 Feet. Wave Detail: East 8 Feet At 12 Seconds. Showers Likely. A Chance Of Thunderstorms In The Evening, Then A Slight Chance Of Thunderstorms After Midnight. |
| Monday...Southeast Winds 10 To 15 Knots. Seas 7 To 8 Feet, Occasionally To 10 Feet. Showers Likely With A Slight Chance Of Thunderstorms. |
| Monday Night...East Winds 15 To 20 Knots. Seas 7 To 8 Feet, Occasionally To 10 Feet. Showers Likely With A Chance Of Thunderstorms. |
| Tuesday...East Winds 15 To 20 Knots. Seas 7 Feet, Occasionally To 9 Feet. A Chance Of Showers. A Slight Chance Of Thunderstorms In The Morning, Then A Chance Of Thunderstorms In The Afternoon. |
| Tuesday Night...East Winds 15 To 20 Knots. Seas 6 To 7 Feet, Occasionally To 9 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Melbourne FL 210pm EDT Fri Oct 3 2025 Issued at 330am EDT Fri Oct 3 2025 Today-Sat...Fairly tight E/NE pressure gradient around strong high pressure over the NE U.S. will produce breezy/gusty conditions with fast moving showers pushing onshore. PWATs (Precipitable Waters) are 1.5-1.8" today which will support locally heavy and persistent rains with a flood threat materializing where any bands set up across the coast from the Atlc. Concern increases tonight and Sat as deeper moisture (PWATs (Precipitable Waters) 2.0-2.1") propagates westward from the Bahamas, a remnant flux of moisture possible left over from Imelda. A weak wave of low pressure may develop near the NW Bahamas tonight/Sat and track NW across S FL. This would increase the easterly winds across the area as well as enhance the convergence resulting in a higher coverage and intensity of rain expanding northward. As a result, WPC has drawn a Slight risk of excessive rain for much of the central FL Atlantic coast Sat. While most areas will see less than 2 inches of rain, rainbands with highly efficient rain rates will be capable of localized 3-5". Confidence where these locally higher rainfall amounts will occur is low, but there has been a fairly consistent signal for the coast south of the Cape today, shifting northward to include most of the coast Saturday. The evolution of this surface low will be key to determining the extent of the heavy rain threat esp on Sat. Areas where soils are reaching saturation from previous heavy rainfall will have higher sensitivity to flooding, particularly coastal Volusia and portions of the Treasure Coast. A Flood watch remains in effect through Sat night. Will monitor the need for a Wind Advisory Sat along the coast if sustained winds can get to 25 mph and/or gusts to 35 mph. On the St Johns River, Astor is already flirting with Moderate Flood stage (3.0 ft) and heavy rainfall should cause rises on other sections of the basin such as Cocoa and Geneva. At the beaches, large breaking wave of 5-8 ft are will continue to pound the coast, producing high/rough surf and numerous life- threatening rip currents. Wave run-up to the dune will continue to cause minor to moderate erosion near the times of high tide which will occur between 4-7am and again 4-7pm the next few days. Sun-Thu...Moist onshore flow is forecast to continue with high (60-70%) rain chances Sun-Mon. Eventually some drier air is forecast to move in from the E/NE either Tuesday or Wednesday temporarily lowering rain chances. But model guidance is consistent showing another strong high pressure developing over the eastern CONUS mid week, keeping a brisk onshore flow with increasing moisture and fast moving showers pushing onshore. Marine Issued at 330am EDT Fri Oct 3 2025 Solid Small Craft Advisory conditions are occurring over the local Atlantic waters as tight NE to E pressure gradient around surface high along the eastern seaboard supports 20-25 knots. These winds and swell have built seas 7-12 feet and these very hazardous conditions will persist through the weekend. A weak low or wave of low pressure is forecast to develop near the NW Bahamas in the next 24-36 hours and this tighten the gradient a little further. Occasional gusts to Gale Force (34 knots) will be possible tonight and Sat. There should be some relaxation of the pressure gradient Sun-Monday as winds turn E-SE. While speeds should dip below 20 knots esp across the southern waters, seas will be slow to subside so have extended the SCA (Small Craft Advisory) to include Sunday for all the waters. A further extension of the SCA (Small Craft Advisory) appears likely for the offshore waters into early next week. Meanwhile, moisture increases locally which will promote a high coverage of showers and isolated storms containing heavy rain and cloud to water lightning this weekend into early next week. Some drying should eventually move in from the northeast Tue-Wednesday but it looks short-lived. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...Flood Watch through Sunday morning for FLZ041-141-154-159-164- 247-254-259-264-347-447-547-647-747. Coastal Flood Advisory until 11pm EDT Sunday for FLZ141-154-159- 164-347-447-647-747. High Surf Advisory until 4am EDT Monday for FLZ141-154-159-164- 347-447-647-747. AM...Small Craft Advisory until 4am EDT Monday for AMZ550-552-555- 570-572-575. |
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