Fernandina Beach to St. Augustine, FL Out 20 NM Marine Forecast
| Today...Northwest Winds 15 To 20 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet This Afternoon. Wave Detail: North 4 Feet At 5 Seconds And East 2 Feet At 8 Seconds. Intracoastal Waters Choppy. |
| Tonight...Northwest Winds 20 To 25 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet. Wave Detail: North 7 Feet At 7 Seconds. Intracoastal Waters Rough. |
| Friday...North Winds 20 To 25 Knots, Diminishing To 15 To 20 Knots In The Afternoon. Seas 5 To 7 Feet, Occasionally To 9 Feet. Wave Detail: North 7 Feet At 6 Seconds. Intracoastal Waters Rough. |
| Friday Night...Northeast Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Wave Detail: North 5 Feet At 6 Seconds. Intracoastal Waters Choppy. |
| Saturday And Saturday Night...Southeast Winds 15 To 20 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. Wave Detail: East 5 Feet At 7 Seconds. Intracoastal Waters Choppy. |
| Sunday...East Winds Around 10 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Northeast 4 Feet At 7 Seconds And Southeast 4 Feet At 8 Seconds. Intracoastal Waters Light Chop. A Slight Chance Of Showers Through The Night. A Chance Of Showers After Midnight. |
| Monday...Northeast Winds 10 To 15 Knots, Becoming Southeast. Seas 4 To 5 Feet, Occasionally To 6 Feet. Intracoastal Waters A Moderate Chop. A Slight Chance Of Thunderstorms. A Chance Of Showers. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Jacksonville FL 734pm EST Thu Nov 27 2025 .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 - Elevated Fire Danger Conditions through Friday afternoon. Be Very Cautious with Outdoor Fires Check for Local Burn Bans as Severe to - Extreme Drought Conditions Continue at Inland Locations - Light Freezes on Friday & Saturday Mornings Inland. Freeze Warnings Issued Late Tonight & Early Fri for Most Inland Locations. Widespread Frost Potential Inland Late Sat Night & Early Sunday Morning - Small Craft Advisories this Afternoon through Fri Evening - Beneficial Rainfall Expected Monday Night through Tuesday. Strong Thunderstorm Potential on Tuesday A chilly Thanksgiving airmass is push into the region on a breezy northwesterly flow. Gradients will relax some overnight as cold area of high pressure pushes eastward across the Deep South tonight. However, a light breeze will continue tonight as temperatures drop inot the 30s inland and potentially the upper 20s for locations in far inland SE GA. The breeze will make it feel chillier with Wind Chill temperatures in the mid/upper 20s. Those cold wind chill values will push into the Suwannee River valley of NE FL as well, nearing Cold Weather Advisory. Decided against issuing the advisory, as winds are generally going to be less than 10 mph, more likely to be in the 3-6 mph range with the weaking pressure gradient. The light breeze should mitigate frost development, except on structures/vehicles that are sheltered from the north winds. Otherwise, the temperatures were adjusted downward a few degrees for the lighter than anticipated winds at this hour. An expansive Freeze Warning remains in effect with no extensions to the warning area. Marine High pressure will build to the northwest through Friday, to the north Friday night, then northeast Saturday. The low will weaken as it moves further away Sunday into early next week. An area of low pressure will lift northeast out of the Gulf Monday night into Tuesday, with the associated cold front moving southeast across area Tuesday into Tuesday night. Rip Currents SE GA Moderate Friday NE FL High Friday Fire Weather ...LONG DURATIONS OF CRITICALLY LOW HUMIDITY VALUES FOR INLAND AREAS ON FRIDAY AFTERNOON... A very dry air mass will persist across our region on Friday, creating long durations of critically low humidity values at all inland locations. Breezy northerly transport winds during the morning hours will weaken slightly during the afternoon hours, with surface speeds expected to remain below Red Flag Warning criteria. Fair to good daytime dispersion values are expected area-wide. Surface and transport winds will shift to east-northeasterly by early Saturday morning and then easterly by Saturday afternoon, with breezy transport speeds area-wide and breezy surface winds developing by early afternoon along the Interstate 95 corridor. These breezy winds will create good daytime dispersion values region- wide, with marginally high values possible in the Ocala National Forest. Surface and transport winds will then diminish as they shift to southeasterly by Sunday morning and southerly at inland locations by Sunday afternoon, with elevated mixing heigheights yielding fair to good daytime dispersion values throughout our area. FOG POTENTIAL AND OTHER REMARKS...A Freeze Warning is in effect for all of inland southeast Georgia, the Suwannee Valley, and portions of inland northeast and north central Florida late tonight and early Friday morning. A light northwesterly breeze should prevent widespread frost formation, but patchy areas of frost will be possible towards sunrise at wind sheltered, inland locations. Another light freeze is expected Friday night and early Saturday morning for inland southeast Georgia and the Suwannee Valley, where areas to widespread frost formation is forecast due to lighter winds. Patchy to areas of frost will be possible elsewhere inland late Friday night and early Saturday morning. Otherwise, patchy to areas of fog formation will be possible at inland locations late Saturday night and early Sunday morning. NOAA Jacksonville FL Office: Watches - Warnings - Advisories FL...Freeze Warning from 3am to 9am EST Friday for FLZ021-023-024- 030-031-035-120-136-220-225-232-236-237-322-422-425-522. GA...Freeze Warning from 3am to 9am EST Friday for GAZ132>136-149- 151>153-162-163-165-250-264-350-364. Marine Small Craft Advisory until 1pm EST Friday for AMZ450-470. Small Craft Advisory until 7pm EST Friday for AMZ452-454-472- 474. |
Jacksonville Radar
Southeast Radar