Neptune Beach, FL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Neptune Beach, FL

May 27, 2024 8:22 AM EDT (12:22 UTC) Change Location
Sunrise 6:24 AM   Sunset 8:21 PM
Moonrise 11:34 PM   Moonset 8:53 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
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AMZ452 Expires:202405272130;;948897 Fzus52 Kjax 270715 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 315 am edt Mon may 27 2024
atlantic coastal waters from altamaha sound ga to flagler beach fl out to 60 nm.
seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves.
amz450-452-454-272130- coastal waters from altamaha sound to fernandina beach fl out 20 nm- coastal waters from fernandina beach to st. Augustine fl out 20 nm- coastal waters from st. Augustine to flagler beach fl out 20 nm- 315 am edt Mon may 27 2024

Today - West winds near 10 knots, becoming southeast 10 to 15 knots this afternoon. Seas around 2 feet. Wave detail: south 2 feet at 4 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop.

Tonight - Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: south 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers. A slight chance of Thunderstorms in the evening, then a chance of Thunderstorms after midnight.

Tuesday - West winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Wave detail: south 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers and Thunderstorms.

Tuesday night - South winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet. Wave detail: southeast 2 feet at 8 seconds. Intracoastal waters light chop.

Wednesday - North winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet. Intracoastal waters light chop.

Wednesday night - South winds around 5 knots, becoming west after midnight. Seas around 2 feet. Intracoastal waters light chop.

Thursday - Northeast winds 5 to 10 knots, becoming east. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and Thunderstorms.

Friday - Northeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters light chop. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.

Friday night - East winds around 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A slight chance of showers and Thunderstorms in the evening.
winds and waves higher in and near Thunderstorms.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 315 Am Edt Mon May 27 2024

Synopsis -
atlantic ridging will continue to the south of the area today and tonight while a cool front approaches from the northwest. The front will bring a chance of Thunderstorms to area waters later tonight into Tuesday with potential for isolated storms with strong gusty winds. The weak front will move south of the waters Tuesday night and stall. Winds become onshore by late this week as high pressure builds southeastward from the great lakes region.

Gulf stream -
the approximate location of the west wall of the gulf stream as of may 25, 2024 at 1200 utc - .
50 nautical miles east of flagler beach. 59 nautical miles east of saint augustine beach. 72 nautical miles east southeast of jacksonville beach. 101 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Neptune Beach, FL
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Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 271206 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 806 AM EDT Mon May 27 2024

New AVIATION

NEAR TERM
(Today through Tonight)
Issued at 335 AM EDT Mon May 27 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

A transition day begins as the sfc ridge axis will be south of the area today while a cool front moves in from the northwest later tonight. Some low stratus will be possible over the western zones as well as patchy fog which will dissipate by 8-9 AM. Deep layer flow is southwest averaging about 15-20 kt but increasing to near 25 kt as shortwave troughing moves into AL and parts of GA by late aftn and early evening. Anticipate scattered to numerous showers and storms convection to move into our northwest zones by the 22z-03z time frame, as suggested by CAM model solutions. The environment is conducive to a few strong to possibly severe storms with marginal shear values of 30 kt, DCAPE of about 1000 J/kg, MLCAPE of around 1500 to near 2500 J/kg. Strong to damaging wind gusts and marginally severe hail are possible. SPC has placed the far northwest part of the forecast area in a slight risk of severe storms, with marginal risk down to FL/GA state line. Otherwise, it will be a hot and breezy day with southwest to west winds of about 10-15 mph, with Atlantic sea breeze having a tougher time pushing inland compared to yesterday. Max temps in the lower to mid 90s, but fortunately dewpoints will mix lower in the aftn and keep heat indices in check to below 102. Should see increased mid/high clouds coming in from the northwest and west late today.

Tonight, as mentioned, scattered to numerous showers and storms should be ongoing over southeast GA this evening. As the shortwave trough transverses the area, the semi-organized convection, possibly in short segments occasionally generated by outflow boundaries, will shift east to southeast. The airmass will remain unstable as dewpoints will be around 70 or lower 70s. This should further support convection persisting into the overnight hours and pushing into northeast FL near and after midnight. Isolated strong to severe storms may persist through around midnight mainly over southeast GA, but a couple of strong storms possible around the Suwannee Valley area overnight. Lows will be muggy in the lower to mid 70s with light westerly or southwest winds continuing overnight.

SHORT TERM
(Tuesday through Wednesday night)
Issued at 335 AM EDT Mon May 27 2024

A cold front over northeast FL will gradually shift and stall over north-central FL on Wednesday as high pressure ridging builds south across the MS River Valley. Showers and storms will be ongoing along the frontal boundary Tuesday morning. Dry, "cool" air filtering in from the northwest in the wake of the front will mostly suppress convection over SE GA on Tuesday. Best moisture and lift will remain along the frontal boundary focusing convection mainly south of the I-10 corridor. A few showers and storms may form along the pinned Atlantic sea breeze in the afternoon with better chances along the NE FL coast due to the front interacting with the sea breeze. Rain wanes Tuesday night with the loss of daytime heating and the front weakening. Dry airmass builds across the area with PWATs < 1 inch. Mostly dry conditions prevail on Wednesday with a few showers possible in north-central FL along the lingering frontal boundary. Hot days continue with highs in the low to mid 90s each day. Heat indices will be around 100 degrees in NE FL on Tuesday. The drier air will help keep heat indices below 100 on Wednesday.

LONG TERM
(Thursday through Sunday)
Issued at 335 AM EDT Mon May 27 2024

Moisture gradually returns with developing southwesterly flow on Thursday. A frontal boundary stalled over NE FL on Thursday will shift southward Friday into the weekend as high pressure builds to the north and into the mid-Atlantic states this weekend. Rain will primarily be in NE FL on Thursday where the best moisture is and lingering lift from the frontal boundary. Passing upper shortwaves and an increase in moisture will lead to isolated to scattered showers and storms area-wide on Friday. Pattern returns to sea- breeze driven convection for the weekend with high pressure ridging over the SE US. Onshore flow develops over the weekend with highest rain chances focused along the I-75 corridor where the sea breezes will likely collide. Highs will then range from the upper 80s in SE GA to the low 90s in north-central FL.
Overnight lows will be "cool" in the 60s

AVIATION
(12Z TAFS)
Issued at 804 AM EDT Mon May 27 2024

Other than a lifting deck of low stratus across southeast GA, VFR conditions prevail. West to southwest winds will develop through the morning, becoming gusty around 15-20 knots by the afternoon. Appears the sea breeze will push into the immediate coast sites (KSSI, KSGJ, and KCRG) this afternoon for a few hours before it dissipatesthis and southwesterly flow strengthens ahead of an approaching front. Don't anticipate shower or storms until after 00z at KSSI and after 04z at northeast FL airfields as the weak front slowly pushes south. Medium confidence in VFR ceilings overnight but there is some potential for cigs to fall to MVFR with shower activity.

MARINE
Issued at 335 AM EDT Mon May 27 2024

West to southwest winds initially today but will shift to southeast and south during the aftn at 10-15 kt. Seas remain low near 2 ft per buoys but will rise up slightly later today as winds ramp up further. Sustained sfc winds near 15 kt possible by evening, with a weak cool front and upper level disturbance approaching from the northwest. Some t-storm activity possible late tonight and on Tuesday. The front will move south of the area by Wednesday but will stall and become diffuse thereafter. Winds will be onshore later in the week as high pressure ridge builds in from the north.

Rip Currents: A low-end moderate risk again today with surf possibly a tad higher but overall little difference from yesterday. At least initially, up to 3 wave groups noted in buoys this morning, with a long period swell near 14 seconds that is very small. Low risk is in place for southeast GA beaches. Longshore current likely weak from the south. Similar conditions appear for Tuesday.

HYDROLOGY
Issued at 330 AM EDT Mon May 27 2024

Moderate river flooding is forecast end of the week on the Santa Fe at Three Rivers Estates, just touching the moderate category.
The Satilla River basin remains in Minor Flood stage at Atkinson (but coming down) and portions of the Suwannee are expected near Minor Flood stage this week. Minor flooding will be possible towards mid to late for the lower Santa Fe River near the gauge at Hildreth.

PRELIMINARY POINT TEMPS/POPS
AMG 93 71 92 67 / 30 60 10 10 SSI 92 73 91 72 / 10 50 20 10 JAX 95 72 94 69 / 0 30 20 10 SGJ 95 74 93 72 / 0 10 30 10 GNV 93 71 93 67 / 0 20 30 10 OCF 93 72 93 70 / 0 10 40 10

JAX WATCHES/WARNINGS/ADVISORIES
FL...None.
GA...None.
AM...None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
LTJF1 5 mi64 min 76°F 73°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 6 mi64 min WSW 7G8.9 76°F 82°F29.95
BLIF1 8 mi64 min SW 7G7 77°F 29.9575°F
DMSF1 9 mi64 min 83°F
JXUF1 10 mi64 min 82°F
NFDF1 12 mi64 min WSW 2.9G5.1 76°F 29.9476°F
BKBF1 16 mi64 min WSW 4.1G8 77°F 29.93
FRDF1 - 8720030 - Fernandina Beach, FL 25 mi64 min SW 4.1G7 79°F 82°F29.93
41117 28 mi56 min 79°F2 ft
41112 - Offshore Fernandina Beach, FL (132) 29 mi82 min 78°F 79°F2 ft
KBMG1 32 mi64 min 75°F 29.94
SAUF1 - St. Augustine, FL 33 mi82 min W 2.9G5.1 75°F 79°F29.9375°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 46 mi97 min WSW 1 72°F 29.9869°F


Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KCRG JACKSONVILLE EXECUTIVE AT CRAIG,FL 5 sm29 minW 0510 smClear77°F72°F83%29.95
KNRB MAYPORT NS (ADM DAVID L MCDONALD FIELD),FL 6 sm30 minW 0710 smClear81°F72°F74%29.94
KNIP JACKSONVILLE NAS (TOWERS FLD),FL 14 sm29 minW 0810 smClear79°F70°F74%29.96
KJAX JACKSONVILLE INTL,FL 19 sm26 minSW 0610 smA Few Clouds75°F72°F89%29.94
KHEG HERLONG RECREATIONAL,FL 20 sm27 minSW 039 smClear73°F72°F94%29.97
KFHB FERNANDINA BEACH MUNI,FL 21 sm27 minWSW 0510 smClear77°F72°F83%29.95
Link to 5 minute data for KCRG


Wind History from CRG
(wind in knots)
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Tide / Current for Pablo Creek, ICWW bridge, St. Johns River, Florida
   
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Pablo Creek
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Mon -- 01:04 AM EDT     4.15 feet High Tide
Mon -- 06:25 AM EDT     Sunrise
Mon -- 07:12 AM EDT     0.19 feet Low Tide
Mon -- 09:53 AM EDT     Moonset
Mon -- 01:29 PM EDT     3.30 feet High Tide
Mon -- 07:03 PM EDT     0.17 feet Low Tide
Mon -- 08:20 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Pablo Creek, ICWW bridge, St. Johns River, Florida, Tide feet
12
am
3.9
1
am
4.1
2
am
4
3
am
3.3
4
am
2.3
5
am
1.3
6
am
0.5
7
am
0.2
8
am
0.3
9
am
0.8
10
am
1.5
11
am
2.3
12
pm
2.9
1
pm
3.3
2
pm
3.3
3
pm
2.9
4
pm
2.1
5
pm
1.2
6
pm
0.4
7
pm
0.2
8
pm
0.4
9
pm
0.9
10
pm
1.8
11
pm
2.7


Tide / Current for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
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Mon -- 01:44 AM EDT     -0.00 knots Slack
Mon -- 04:22 AM EDT     -2.03 knots Max Ebb
Mon -- 06:25 AM EDT     Sunrise
Mon -- 08:49 AM EDT     0.00 knots Slack
Mon -- 09:52 AM EDT     Moonset
Mon -- 11:06 AM EDT     1.43 knots Max Flood
Mon -- 01:49 PM EDT     -0.00 knots Slack
Mon -- 04:30 PM EDT     -1.84 knots Max Ebb
Mon -- 08:17 PM EDT     0.00 knots Slack
Mon -- 08:20 PM EDT     Sunset
Mon -- 11:23 PM EDT     2.28 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

St. Johns River Entrance, Florida Current, knots
12
am
1.6
1
am
0.8
2
am
-0.3
3
am
-1.4
4
am
-2
5
am
-1.9
6
am
-1.6
7
am
-1.3
8
am
-0.7
9
am
0.2
10
am
1
11
am
1.4
12
pm
1.2
1
pm
0.6
2
pm
-0.1
3
pm
-1.1
4
pm
-1.7
5
pm
-1.8
6
pm
-1.3
7
pm
-0.8
8
pm
-0.2
9
pm
0.6
10
pm
1.6
11
pm
2.2


Weather Map
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GEOS Local Image of Southeast   
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Jacksonville, FL,




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