St. Augustine to Flagler Beach, FL 20 - 60 NM Marine Forecast
| Rest Of Today...East Winds 20 To 25 Knots. Seas 9 To 11 Feet, Occasionally To 14 Feet. Wave Detail: East 11 Feet At 9 Seconds. A Slight Chance Of Showers Late This Morning, Then A Chance Of Showers This Afternoon. |
| Tonight...East Winds 20 To 25 Knots. Seas 9 To 12 Feet, Occasionally To 15 Feet. Wave Detail: East 12 Feet At 10 Seconds. A Chance Of Showers. |
| Sunday...East Winds 20 To 25 Knots, Becoming Northeast 15 To 20 Knots In The Afternoon. Seas 10 To 12 Feet, Occasionally To 15 Feet. Wave Detail: East 12 Feet At 11 Seconds. A Slight Chance Of Showers In The Morning, Then A Chance Of Showers In The Afternoon. |
| Sunday Night...Northeast Winds 15 To 20 Knots. Seas 9 To 11 Feet, Occasionally To 14 Feet. Wave Detail: East 11 Feet At 12 Seconds. A Slight Chance Of Showers. |
| Monday And Monday Night...East Winds 15 To 20 Knots. Seas 7 To 10 Feet, Occasionally To 13 Feet. Wave Detail: East 10 Feet At 12 Seconds. A Slight Chance Of Showers. |
| Tuesday...East Winds 5 To 10 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet, Subsiding To 5 To 6 Feet, Occasionally To 8 Feet After Midnight. Wave Detail: East 8 Feet At 11 Seconds, Becoming East 6 Feet At 10 Seconds. A Slight Chance Of Showers In The Morning, Then A Chance Of Showers In The Afternoon. A Slight Chance Of Thunderstorms. A Slight Chance Of Showers Through The Night. |
| Wednesday...Southeast Winds Around 10 Knots, Becoming Southwest. Seas 5 To 6 Feet, Occasionally To 8 Feet. A Slight Chance Of Thunderstorms Through The Day. A Chance Of Showers. Winds And Seas Higher In And Near Thunderstorms. |
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Area Forecast Discussion National Weather Service Jacksonville FL 1243pm EST Sat Dec 14 2024 Near Term Issued at 219am EST Sat Dec 14 2024 For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf Synopsis...Marine and surf zone hazards continue today under gusty onshore flow and passing coastal showers. Gusty onshore NNE to ENE winds continue today between strong high pressure across New England and coastal troughs over the local waters. Aloft, a couple of relatively weak mid level short wave troughs will passes over the region, enhancing lift at times over the low level convergence. This morning, scattered, brief coastal showers were decreasing in coverage trailing the passage of a mid level short wave trough. Although passing coastal showers will be possible through the day, expect an increase in coverage of coastal showers into the late afternoon and early evening along the NE FL coast as another short wave trough approaches from the west. Partly to mostly cloudy skies will continue with near normal high temperatures today in the mid 60s to mid 70s with mild, above normal overnight lows in the 50s inland to 60s coast tonight. Still to much low level winds for fog potential, but low stratus will be possible across SE GA late tonight into early Sunday morning. .SHORT TERM... (Sunday through Monday night) Issued at 219am EST Sat Dec 14 2024 High pressure in control over the past few days finally starts to weaken by the end of this weekend and into the start of next week as the associated high over the northeast US starts to shift offshore into the Atlantic. This will especially be the case on Monday as a quick moving shortwave traverses across much of the northern US and pushes a trailing cold front towards our area, further breaking down high pressure ridging. Most of the upper level energy passes well off the north, leaving a zonal flow aloft across much of the southeast and therefore a stalling and weakening front just to our north and weak high pressure locally. Enough of an onshore flow (around 10-15 mph with some gusts up to 20-25 mph) will linger on Sunday to allow chances for a few showers to continue near the coast, but dry elsewhere with a mix of sun and clouds. Temps in the 70s will be common from about I-10 southward, and in the upper 60s north. A lighter flow within weakening high pressure Monday will allow widespread 70s area wide and possibly near 80 furthest south and inland, as well as very low chances for any rain. Long Term (Tuesday through Friday) Issued at 219am EST Sat Dec 14 2024 Weak high pressure remains across the area on Tuesday with a diffuse front stalled just to the north, and a coastal trough along the eastern FL coast. Isolated to scattered coastal showers may intrude onshore at times, but most of the activity looks to remain south of our area and/or over the waters. Above normal temperatures well into the 70s and low 80s also will be expected Tuesday. Another more robust upper trough starts to swing across the central US by Wednesday and eventually towards the eastern seaboard Wednesday Night and into Thursday. Flow starts to veer towards the southeast Wednesday as a warm front lifts northward across the region, followed by a cold front sometime around Wednesday Night into Thursday. There is still plenty of discrepancies with respect to timing and impacts associated with the front, however active weather including some much needed rainfall looks likely Wednesday and into Thursday for most. Much drier and cooler high pressure starts to build in behind the front to end the week. Temps will remain above normal Wednesday before crashing to near or below normal around Thursday - Friday. Marine Issued at 219am EST Sat Dec 14 2024 High pressure will dominate north of the region through Tuesday with an extended period of Small Craft Advisory conditions for the local waters. A warm front will lift north across the waters Wednesday with isolated thunderstorms possible ahead of a cold front. The front is expected to push south of the local waters Wednesday night. Extended the Small Craft Advisory for the offshore waters (20-60 NM) out through Tuesday night. Rip Currents Strong onshore wind will continue a high rip current risk at all local beaches through the weekend. Although wind strength decreases Sunday through Tuesday, easterly flow will persist with building long period easterly swells continuing the high rip current risk. Extended the high rip current risk through Tuesday evening. Surf Advisory: Large breakers of 6-8 ft are expected at local beaches today with heigheights building to 7-9 ft Sunday. The high surf advisory remains in place (issued when breakers are 7 ft or greater) and we extended it through Monday evening. Hydrology Issued at 219am EST Sat Dec 14 2024 Coastal water levels continue to increase due to both the persistent and strong onshore flow with the approach of the full "Cold Moon" tomorrow, Dec. 15th. The latest extra-tropical storm surge guidance for both Mayport and Fernandina Beach continues to favor just under 2 ft MHHW of tidal inundation around the higher daily high tides this morning around 7-8 am and again Sunday morning, which keeps most locations within the Minor tidal flooding impact category messaging mainly minor, nuisance tidal flooding in the 'usual' locations. Given the NE wind fetch, anticipate higher tidal values within the SE GA estuaries including the St. Marys River Basin. NOAA Jacksonville FL Office: Watches - Warnings - Advisories FL...High Rip Current Risk through Tuesday evening for FLZ124-125-133- 138. Coastal Flood Advisory until 10am EST Sunday for FLZ124-125-133- 138. High Surf Advisory until 7pm EST Monday for FLZ124-125-133-138. GA...High Rip Current Risk through Tuesday evening for GAZ154-166. Coastal Flood Advisory until 10am EST Sunday for GAZ154-166. High Surf Advisory until 7pm EST Monday for GAZ154-166. AM...Small Craft Advisory until 7pm EST Monday for AMZ450-452-454. Small Craft Advisory until 1am EST Wednesday for AMZ470-472-474. |
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