Sebastian Inlet to Jupiter Inlet out 20nm Marine Forecast
| Today...Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. Wave Detail: Southeast 2 Feet At 3 Seconds And Northeast 1 Foot At 8 Seconds. A Light Chop On The Intracoastal Waters. A Slight Chance Of Showers And Thunderstorms. |
| Tonight...South Winds 5 To 10 Knots. Seas 1 To 2 Feet. Wave Detail: Southeast 2 Feet At 3 Seconds And Northeast 1 Foot At 10 Seconds. Mostly Smooth On The Intracoastal Waters. A Chance Of Showers And Thunderstorms. |
| Thursday...Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds And Northeast 1 Foot At 10 Seconds. A Light Chop On The Intracoastal Waters. A Chance Of Showers. A Slight Chance Of Thunderstorms In The Morning, Then A Chance Of Thunderstorms In The Afternoon. |
| Thursday Night...Southeast Winds 5 To 10 Knots. Seas 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds And Northeast 1 Foot At 10 Seconds. Mostly Smooth On The Intracoastal Waters. A Chance Of Showers. A Chance Of Thunderstorms In The Evening, Then A Slight Chance Of Thunderstorms After Midnight. |
| Friday...Southeast Winds 5 To 10 Knots. Seas 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds And Northeast 2 Feet At 10 Seconds. A Light Chop On The Intracoastal Waters. A Slight Chance Of Showers And Thunderstorms In The Morning, Then A Chance Of Showers And Thunderstorms In The Afternoon. |
| Friday Night...Southeast Winds 5 To 10 Knots. Seas 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds And Northeast 2 Feet At 9 Seconds. Mostly Smooth On The Intracoastal Waters. A Chance Of Showers And Thunderstorms. |
| Saturday...East Winds 5 To 10 Knots. Seas 2 Feet. A Light Chop On The Intracoastal Waters. A Chance Of Showers And Thunderstorms. |
| Saturday Night...Southeast Winds 5 To 10 Knots. Seas 2 Feet. Mostly Smooth On The Intracoastal Waters. A Chance Of Showers And Thunderstorms. |
| Sunday...East Winds 5 To 10 Knots. Seas 2 To 3 Feet. A Light Chop On The Intracoastal Waters. Showers Likely. A Chance Of Thunderstorms In The Morning, Then Thunderstorms Likely In The Afternoon. |
| Sunday Night...East Winds 5 To 10 Knots. Seas 2 Feet. Mostly Smooth On The Intracoastal Waters. A Slight Chance Of Thunderstorms. A Slight Chance Of Showers 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 140am EDT Wednesday August 26 2026 Issued at 140am EDT Wednesday August 26 2026 -----------Synoptic Overview----------- Florida remains beneath a weakness between a pair of mid-level anticyclones early this morning. Near-normal H5 heigheights reside over the state, but subtle vorticity perturbations continue to meander nearby. Total moisture values have returned to near normal over the peninsula. Little change is expected in the overall pattern through the remainder of the work week. The trough over the northeast Gulf is expected to very slowly retrograde and fill, allowing height rises across Florida. This will ensure continued south to southwesterly flow above H85 through at least Friday. At the surface, an axis of high pressure will attempt to move northward, holding close to our latitude through Friday as well. Ensemble guidance remains in strong agreement into the extended forecast. The members bridge the mid-level highs over the Southern U.S. and Gulf by the weekend and into early next week, allowing surface high pressure to lift north of Florida. Near- to slightly above-normal moisture should remain in place, but steering flow for convection should turn onshore and deepen, lasting well into next week. The National Hurricane Center gives a tropical wave in the Atlantic MDR (Main Development Region) a 70% chance of tropical cyclone formation over the next couple of days. While it is far too early to know whether this feature will affect the U.S., it's a reminder to be prepared as peak hurricane season is upon us. -------Sensible Weather & Impacts------- Now - Tonight... A handful of storms have lasted well into the night, with frequent lightning and brief gusty winds affecting parts of Brevard County. This activity should dissipate late in the overnight, leaving us with a quiet start to the day. Hi-res guidance then suggests that a few storms will attempt to form by mid-afternoon along the I-95 corridor as the sea breeze moves inland. Additional storms are likely to flare up along boundary collisions with the Gulf breeze over the interior by early evening. With ample moisture and weak energy aloft, there is little reason to doubt high overall coverage later today (50-60% coast, 60-70% interior). As in recent days, the primary threats remain frequent lightning, wind gusts of 45 to 55 mph, and torrential rainfall. HREF members show a 10% chance of rainfall amounts reaching 3 inches today, especially over the interior. If this occurs over urban areas, localized flooding may result. Widespread low to mid 90s once again today, with max heat indices 100-105. Thursday - Friday... No major changes to the expected weather setup as we wrap the work week. Light surface winds will allow for a fairly robust sea breeze circulation, while moderate south-southwest flow persists above 5,000 ft. This portends daily rounds of showers and storms with fairly high coverage (50-70%) in the afternoon and evening. Storm threats will be similar to what is expected later today. With the light offshore steering flow, a few storms may push back toward the coast, especially on Thursday evening. Beach-goers should monitor the western sky and seek sturdy shelter if you hear thunder. Expect seasonably hot and humid conditions before the storms form both days. Weekend - Middle Of Next Week... As high pressure builds and gains latitude, onshore flow will become established through the lowest 10,000 feet. Scattered storms should form each day on the advancing sea breeze, with an eventual collision with the Gulf breeze either near or west of Orlando and the Kissimmee Basin by evening. Beachside locations will have the best chance of staying dry, while some interior locales will likely see a storm each afternoon. Some modulation may occur from day to day due to moisture fluctuations in the onshore flow regime. Expect no substantial change to our seasonable heat and humidity as we round out August. Marine Issued at 140am EDT Wednesday August 26 2026 An axis of high pressure will slowly move northward, reaching the local Atlantic waters by Thursday and remaining nearly stationary through Friday. Light winds persist, becoming onshore and somewhat enhanced near the coast by the afternoon sea breeze. A few offshore-moving storms with sudden strong wind gusts remain possible through at least Thursday. By the weekend, the surface high lifts north of the area, with favorable boating conditions expected. Light S/SW winds overnight turning SE in the afternoon, up to around 12 kt. Winds become E/SE this weekend. Seas 2 ft or less through Friday, then 2-3 ft this weekend. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...None. AM...None. |
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