Sebastian Inlet to Jupiter Inlet out 20nm Marine Forecast
| Tonight...Northwest Winds 20 To 25 Knots, Becoming North 15 To 20 Knots Late. Seas 5 To 7 Feet, Occasionally To 9 Feet. Wave Detail: Northwest 7 Feet At 6 Seconds And Northeast 4 Feet At 10 Seconds. Rough On The Intracoastal Waters. |
| Friday...North Winds 10 To 15 Knots, Becoming Northeast 5 To 10 Knots In The Afternoon. Seas 4 To 6 Feet, Occasionally To 8 Feet, Subsiding To 3 To 4 Feet In The Afternoon. Wave Detail: North 4 Feet At 10 Seconds, Becoming North 4 Feet At 9 Seconds And Southeast 1 Foot At 3 Seconds In The Afternoon. A Moderate Chop On The Intracoastal Waters. |
| Friday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet. Wave Detail: North 3 Feet At 8 Seconds And Southeast 1 Foot At 3 Seconds. Mostly Smooth On The Intracoastal Waters. |
| Saturday...Northeast Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: North 2 Feet At 7 Seconds And Southeast 1 Foot At 4 Seconds. A Light Chop On The Intracoastal Waters. A Slight Chance Of Showers In The Afternoon. |
| Saturday Night...East Winds 5 To 10 Knots, Becoming Southwest After Midnight. Seas 2 To 3 Feet. Wave Detail: Northeast 2 Feet At 7 Seconds And Southeast 1 Foot At 3 Seconds. Mostly Smooth On The Intracoastal Waters. A Slight Chance Of Showers In The Evening, Then A Chance Of Showers After Midnight. |
| Sunday...West Winds 15 To 20 Knots. Seas 3 To 4 Feet. Wave Detail: Northwest 4 Feet At 5 Seconds And Northeast 2 Feet At 8 Seconds. Choppy On The Intracoastal Waters. A Chance Of Showers In The Morning, Then A Slight Chance Of Showers In The Afternoon. |
| Sunday Night...Northwest Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Choppy On The Intracoastal Waters. |
| Monday...North Winds 15 To 20 Knots, Diminishing To 10 To 15 Knots In The Afternoon. Seas 3 To 5 Feet, Occasionally To 6 Feet. Choppy On The Intracoastal Waters. |
| Monday Night...North Winds 10 To 15 Knots. Seas 3 To 4 Feet. A Light Chop On The Intracoastal Waters. |
| Tuesday...North Winds 15 To 20 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Choppy On The Intracoastal Waters. |
| Tuesday Night...Northeast Winds 15 To 20 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Choppy On The Intracoastal Waters. |
| Area Forecast Discussion National Weather Service Melbourne FL 147pm EST Thu Jan 15 2026 ...New KEY MESSAGES,ARINE,Fire Weather .KEY MESSAGES... Issued at 118pm EST Thu Jan 15 2026 - Windy conditions this afternoon, with gusts up to 40 mph behind a cold front. - A Freeze Warning and Cold Weather Advisory are in effect for much of east central Florida tonight - Temperatures rebound briefly on Saturday, before another strong cold front arrives Sunday afternoon, producing cold mornings and cool afternoons through at least Tuesday Issued at 118pm EST Thu Jan 15 2026 Rest of Today - Tonight The earlier cold front has now worked its way into South Florida. Clouds near and just behind the front will diminish from north to south through the remainder of the afternoon, as drier air advects into the area. CAMs suggest a few lingering, light showers south of Orlando embedded within these clouds and there are light returns on KMLB radar in this area prior to 1PM, so have included ~20% chance through the end of the work day southward into the Treasure Coast. Windy northwest winds have overperformed behind the front, with widespread wind gusts up to 25-30 mph observed and a few gusts to up to 40 mph. These winds will continue through the daytime hours, then diminish this evening, but will blow around unsecured objects. Such sudden wind gusts can also make driving difficult, especially for high profile vehicles. Tonight, clear skies and much drier air (dewpoints in the 20s) will allow for temperatures to plummet after sunset. Freeze Warnings remain in effect and now include all of mainland Brevard. Areas within the Freeze Warning are forecast to see lows between 27-32 degrees. Elsewhere (the Brevard Barrier Island, Martin, and coastal Indian River and St Lucie Counties), will be chilly, but should remain above freezing. Low temperatures there are forecast in the lower to mid-30s. It should be noted that some MOS guidance is a few degrees lower than consensus, likely due to 925 mb winds decreasing right around sunrise. However, have maintained the forecast near the consensus, as tonight's outliers have been noticeably (and incorrectly) colder the last few cold weather events. Regardless, temperatures will be well below normal tonight. 925 mb winds 20- 25+kt overnight will keep surface winds elevated, with wind chills in the 20s for most of east central Florida. A Cold Weather Advisory remains in effect for all but coastal Martin County. This afternoon is the time to prepare any sensitive plants and take action to keep people and pets without adequate shelter warm. Use caution with any space heaters. Friday-Saturday...High pressure builds eastward across the peninsula from the Gulf Friday into Saturday. Lingering dry and cooler air will continue temperatures around 8-10 degrees below normal Friday afternoon, before a brief return to near-normal temperatures Saturday. Dry conditions prevail through Saturday afternoon, with very light winds. However, the light winds look to be just onshore enough to rebound dew points into the upper 30s and 40s for most areas. Therefore, overnight lows will remain chilly Friday night into Saturday morning, though not quite as cold as the night before. Forecast temperatures are in the 40s for most locations, with upper 30s north of I-4. Patchy frost will be possible near Lake George, where winds will be lightest and temperatures coldest. By Saturday night, lows look to remain in the 50s, as cloud cover increases and a few showers return ahead of the next cold front. Sunday-Wednesday...A series of upper level troughs will traverse the eastern US late this weekend into early next week. The next surface cold front is forecast to pass through east central Florida on Sunday, bringing another increase in winds. Northwesterly winds Sunday afternoon look to increase to around 15 mph once again, with gusts near 20 mph. While available moisture near and along the front will be fairly modest, models have continued the trend of at least a few, if not scattered, showers passing through northern portions of the forecast area Sunday. Instability is forecast to be minimal, so have not included any mention of thunderstorms. Dry conditions then prevail through mid-week, despite a reinforcing front forecast to push through east central Florida on Tuesday. Below normal temperatures look to return through at least Tuesday, thanks to the series of fronts. Models have trended slightly warmer this cycle for Sunday night into Monday morning. However, cold temperatures are forecast, regardless. Lows in the 30s return, with near freezing temperatures once again for the normally colder locations. Despite lighter winds compared to what is forecast tonight, wind chills near and below 30 are once again expected for nearly all but Martin County. Will need to monitor for additional Cold Weather Advisories, Freeze Warnings, and possible frost. This blast of cold air is forecast to persist longer to start next week, with widespread cold temperatures in the 30s continuing Monday night. Chilly daytime highs in the upper 50s to lower 60s are expected. High pressure and nearer to normal temperatures are forecast by Wednesday. Marine Issued at 118pm EST Thu Jan 15 2026 Hazardous boating conditions today behind a cold front. Strong northwesterly winds 20-30 kts are forecast to become increasingly northerly and continue through this evening, before diminishing overnight. High pressure then builds into the area through Saturday, with light winds. However, seas building to up to 7-10 ft in the Gulf Stream today will be slow to subside, remaining up to 7 ft through much of Friday. Small Craft Advisories remain in effect for all of the local waters. A brief round of favorable conditions Saturday will deteriorate Sunday, as another cold front moves through the local waters. Isolated to scattered showers return Saturday night, then breezy northwesterly winds develop into Sunday at around 20-25 kts. Northerly winds, though lighter, will continue poor boating conditions through early next week. Seas 6-8 ft in the Gulf Stream Sunday will linger at 5-6 ft through Tuesday. Additional Small Craft Advisories are expected to end the weekend. Fire Weather Issued at 118pm EST Thu Jan 15 2026 Sensitive fire weather conditions for portions of the area this afternoon behind a cold front. Windy northwesterly winds, with gusts up to 30-40 mph have been reported. Much drier air will advect into the area through the remainder of the day, with min RH falling to 35-40% north of I-4, prior to winds decreasing. Winds will then diminish into this evening. High pressure will produce light winds Friday and generally onshore flow will help to recover min RH along the coast. However, min RH over the interior is expected to fall to 25-35%. Increasing moisture will lead to less sensitive conditions this weekend. Then, a series of fronts will bring another round of breezy winds and lower min RH early next week. NOAA Melbourne FL Office: Watches - Warnings - Advisories FL...Cold Weather Advisory from 1am to 9am EST Friday for FLZ041- 044>046-053-058-141-144-154-159-247-254-259-264-347-447-547- 647-747. Freeze Warning from 1am to 9am EST Friday for FLZ041-044>046- 053-058-141-144-247-254-259-347-547-647. AM...Small Craft Advisory until 4am EST Friday for AMZ550-552. Small Craft Advisory until 4pm EST Friday for AMZ555-572-575. Small Craft Advisory until 10am EST Friday for AMZ570. |
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