Fernandina Beach to St. Augustine, FL Out 20 NM Marine Forecast
| Rest Of Today...North Winds Around 5 Knots. Seas Around 2 Feet. Wave Detail: East 2 Feet At 7 Seconds. Intracoastal Waters Smooth. |
| Tonight...Northwest Winds 5 To 10 Knots, Increasing To 10 To 15 Knots After Midnight. Seas 2 To 3 Feet. Wave Detail: Northwest 2 Feet At 3 Seconds And East 2 Feet At 8 Seconds. Intracoastal Waters A Moderate Chop. |
| Saturday...Northwest Winds 20 To 25 Knots, Becoming West 30 To 40 Knots In The Afternoon. Seas 2 To 4 Feet, Occasionally To 5 Feet, Building To 5 To 7 Feet, Occasionally To 9 Feet In The Afternoon. Wave Detail: Northwest 3 Feet At 4 Seconds And Northeast 2 Feet At 8 Seconds, Becoming Northwest 7 Feet At 5 Seconds And East 2 Feet At 9 Seconds. Intracoastal Waters Extremely Rough. |
| Saturday Night...Northwest Winds 35 To 45 Knots. Seas 7 To 10 Feet, Occasionally To 13 Feet. Wave Detail: Northwest 9 Feet At 6 Seconds. Intracoastal Waters Extremely Rough. A Chance Of Snow Showers. |
| Sunday...Northwest Winds 30 To 35 Knots, Diminishing To 15 To 20 Knots In The Afternoon. Seas 5 To 8 Feet, Occasionally To 10 Feet, Subsiding To 4 To 6 Feet, Occasionally To 8 Feet In The Afternoon. Wave Detail: Northwest 8 Feet At 6 Seconds And Northeast 2 Feet At 10 Seconds, Becoming Northwest 6 Feet At 7 Seconds And Northeast 3 Feet At 9 Seconds. Intracoastal Waters Extremely Rough. |
| Sunday Night...Northwest Winds 20 To 25 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Wave Detail: Northwest 5 Feet At 5 Seconds And East 4 Feet At 11 Seconds. Intracoastal Waters Rough. |
| Monday...Northwest Winds 15 To 20 Knots, Becoming West 5 To 10 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet, Subsiding To 3 To 5 Feet, Occasionally To 6 Feet. Intracoastal Waters Choppy. |
| Tuesday...West Winds 5 To 10 Knots, Becoming Southwest. Seas 2 To 4 Feet, Occasionally To 5 Feet. Intracoastal Waters Light Chop. |
| Area Forecast Discussion National Weather Service Jacksonville FL 548am EST Fri Jan 30 2026 .KEY MESSAGES... For the latest NE FL and SE GA Daily Key Messages please visit: https:/www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf - Cold Weather Outbreak This Weekend & Early Next Week. Extreme Cold Watch Saturday Night & Early Sunday Morning. Lows in the Teens Possible Inland and Lower 20s at Coastal Locations. Dangerously Cold Wind Chills in the Teens & Single Digits - Windy Coastal Conditions Saturday and Saturday Night. Gusts up to 40 MPH at NE FL Beaches. Gale Conditions Across Coastal Waters - Slight Chance of Light Snowfall Saturday and Saturday Evening. Probabilities for Minor Transportation Impacts are 10-30% across Southeast GA. Little to No Snow Accumulation is Expected Marine High pressure will diminish and a weak trough will develop over the water through the day. This trough will develop into a low pressure system as it drifts to the northeast tonight. As that system deepens to the northwest winds will strengthen to gale-force Saturday afternoon through Sunday morning, with the peak winds expected over night Saturday into Sunday with gusts as high as 45 knots. Anticipate seas to rise quickly with waves building up to 15 feet offshore near the Gulf stream. There will be a low and diminishing chance of a mix of rain and snow showers across the waters Saturday night as moisture wraps around the low. High pressure will build from the west and over the waters during the early and middle part of next week. Rip Currents Low risk of rip currents today with building risk over the weekend as breakers build to 4-7 feet, especially along the NE FL coast. Fire Weather - MinRH levels below 30 percent will be common Sunday and Monday - Widespread High daytime Dispersions Saturday and Sunday - Areas of high dispersions Monday - Low daytime Dispersions inland Wednesday Low pressure will develop northeast of the region Today, then track away to the northeast over the weekend. A very cold airmass will be in place over the weekend. High pressure will build early in the week. A cold front will move Southeast across area Wednesday night and Thursday, bringing chances for rain. FOG POTENTIAL AND OTHER REMARKS: Significant fog is not expected this morning or Tonight. Snow may mix with rain at times over SE GA and coastal NE FL Saturday and Saturday night. NOAA Jacksonville FL Office: Watches - Warnings - Advisories FL...Frost Advisory until 8am EST this morning for FLZ021-023-024- 030-031-035-120-136-220-225-232-236-237-240-322-340-422- 425-522. Extreme Cold Watch from Saturday evening through Sunday afternoon for FLZ021-023-024-030-031-035-038-120-124-125- 132-136>138-140-220-225-232-233-236-237-240-322-325-333- 340-422-425-433-522-533-633. Freeze Watch from Saturday evening through Sunday afternoon for FLZ021-023-024-030-031-035-038-120-124-125-132- 136>138-140-220-225-232-233-236-237-240-322-325-333-340- 422-425-433-522-533-633. GA...Frost Advisory until 8am EST this morning for GAZ153-165. Extreme Cold Watch from Saturday evening through Sunday afternoon for GAZ132>136-149-151>154-162-163-165-166-250- 264-350-364. Freeze Watch from Saturday evening through Sunday afternoon for GAZ132>136-149-151>154-162-163-165-166-250-264-350- 364. Freeze Warning until 8am EST this morning for GAZ132>136-149- 151-152-162-163-250-264-350-364. Marine Gale Watch from Saturday afternoon through Sunday afternoon for AMZ450-452-454-470-472-474. |
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