Tuesday, July27, 2021
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Marine Weather and Tides
Nicholls, GA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:46AMSunset 8:34PM Tuesday July 27, 2021 1:48 AM EDT (05:48 UTC) Moonrise 10:16PMMoonset 9:15AM Illumination 92% Phase: Waning Gibbous; Moon at 18 days in cycle
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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AMZ450 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- 833 Pm Edt Mon Jul 26 2021
Tonight..South winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet with a dominant period 6 seconds. A light chop on the intracoastal waters. Chance of showers in the evening. Slight chance of Thunderstorms. Slight chance of showers after midnight.
Tuesday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet with a dominant period 9 seconds. A moderate chop on the intracoastal waters. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southwest winds 5 to 10 knots. Seas 3 to 4 feet with a dominant period 9 seconds. Mostly smooth on the intracoastal waters. Chance of showers in the evening. Slight chance of Thunderstorms. Slight chance of showers after midnight.
Wednesday..West winds 5 to 10 knots becoming south in the afternoon. Seas 2 to 3 feet. A light chop on the intracoastal waters. Chance of showers and slight chance of Thunderstorms in the morning, then showers likely and chance of Thunderstorms in the afternoon.
Wednesday night..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Mostly smooth on the intracoastal waters. Chance of showers in the evening. Slight chance of Thunderstorms. Slight chance of showers after midnight.
Thursday..Southwest winds 5 knots becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet. A light chop on the intracoastal waters. Chance of showers and Thunderstorms.
Thursday night..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Slight chance of showers and Thunderstorms.
Friday..Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Slight chance of showers and Thunderstorms.
Friday night..Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Saturday..Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 833 Pm Edt Mon Jul 26 2021
Synopsis.. A weakening surface low near the southeast georgia atlantic coast will continue to drift northward and inland tonight. A couple of surface troughs will edge southward across the local waters through the week bringing increased daily rain chances with high pressure remaining south of the region.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 24, 2021 at 1200 utc... 66 nautical miles east of flagler beach. 64 nautical miles east northeast of saint augustine beach. 67 nautical miles east of jacksonville beach. 79 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Nicholls, GA
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location: 31.54, -82.71     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 270546 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 146 AM EDT Tue Jul 27 2021

AVIATION. [Through 06Z Wednesday]

Light southerly winds across NE FL terminals to southeasterly near SSI, just east of the surface low. Winds will continue back further WSW this morning across FL terminals and the surface low drifts farther north, while winds at SSI veer SE to SSW through sunrise and during the daylight morning hours trailing the low. Most terminals are low end VFR this early morning, with SSI will be just below with MVFR cigs through sunrise. After sunrise all terminals will be VFR. SW winds will bring showers and isolated tstorms inland from the Gulf Coast region toward GNV through midday. A weaker east coast sea breeze will back winds at coastal terminals to SSE in the early afternoon. Giving lingering tropical moisture, a couple weak surface troughs meandering over the area and both west and east coast sea breezes, expect an increase in shower and thunderstorm coverage this afternoon and into the evening and indicated VCTS for all terminals beginning near 17z for GNV to 20z for Atlantic coast terminals with TEMPO thunderstorms between 20z and 24z with reduced VSBYS with the ' convection.

PREV DISCUSSION [903 PM EDT].

NEAR TERM [Through Tonight].

The area of weak low pressure is positioned along the NE FL and SE GA coastline, centered near the FL/GA border, and it will continue to slowly move inland through tonight while weakening. Bands of showers with embedded thunderstorms continue to swirl around the low, but coverage is expected to decrease overnight. GOES-16 imagery indicates PWATs over the area are high near 2-2.5 inches due to the plume of tropical moisture associated with the low. High moisture will continue the threat for heavy rainfall and localized flooding through this evening. Overnight low temperatures will drop into the middle 70s, slightly cooler inland than at the coast where sea surface temperatures in the lower 80s will keep temperatures a little warmer. Late tonight into early Tuesday morning, patchy light fog will be possible.

SHORT TERM [Tuesday Through Wednesday Night].

Tuesday, the low will continue to gradually weaken as it drifts over southern GA. The latest GFS model run shows the low potentially drifting towards the South Carolina coast, but remaining very weak. Ample moisture will remain over the area in the wake of the low, PWATs are expected to remain over 2 inches. An upper level shortwave trough over the US east coast will reach down into southern GA, which will result in numerous afternoon and evening showers and storms along the sea breezes. Precipitation coverage will decrease overnight.

High temperatures on Tuesday will be in the lower 90s with heat index values in the 102-106F range. Tuesday night, low temperatures will drop into the middle 70s.

Wednesday, upper level troughing over the US east coast will shift slightly offshore over the Atlantic, but will continue to enhance convection over NE FL and SE GA. Expect numerous afternoon and evening showers and storms again along the sea breezes.

High temperatures on Wednesday will be in the upper 80s to lower 90s with heat index values in the 102-108F range. Wednesday night, low temperatures will drop into the middle 70s.

LONG TERM [Thursday Through Monday].

Upper level troughing will build over the US northeast and surface high pressure will develop to our southwest over the Gulf of Mexico. This pattern will push several shortwave troughs over the deep south that will interact with the sea breezes. Daily showers and storms are expected. High temperatures through the long term will be in the lower and middle 90s with heat indices over 100F. Late this week we may see heat indices reach above 108F. Low temperatures through the long term will be in the 70s.

MARINE.

Elevated SSE winds continued near 15-20 kts at buoy 41008 this evening with combined seas 4.8 ft. Updated the forecast to advertised Small Craft Exercise Caution conditions this evening for our outer waters. Winds weaken further after midnight into the 10-15 kt range as they become SSW toward sunrise.

Rip Currents: Moderate risk through Tuesday expected.

FIRE WEATHER.

Weak low pressure along the NE FL and SE GA coastline will continue to move inland through tonight. Locally heavy rainfall will be possible with showers and storms, coverage will decrease overnight. A trough over the US east coast will remain through mid-week, enhancing afternoon and evening thunderstorms each day. Weak transport winds will result in patchy areas of low dispersions area-wide on Tuesday and in SE GA on Wednesday. Light patchy fog possible early Tuesday morning.

HYDROLOGY.

An area of low pressure along the coast will continue to move inland. Rainfall rates of 1-3 inches per hour are possible along the coastal counties. This will lead to locally heavy rainfall, with ponding on roads and localized flooding possible.

Rivers levels continue to fall with minor flooding ongoing along the lower portions of the Santa Fe River.

PRELIMINARY POINT TEMPS/POPS.

AMG 92 74 89 73 93 / 60 60 80 20 30 SSI 90 77 89 77 91 / 60 50 70 40 30 JAX 92 76 90 75 91 / 60 40 70 40 50 SGJ 91 76 90 75 90 / 50 30 60 40 50 GNV 90 74 89 74 89 / 50 30 80 30 70 OCF 91 74 90 74 90 / 50 30 70 30 70

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 75 mi48 min SSE 7 80°F 1014 hPa (+0.0)80°F
FRDF1 - 8720030 - Fernandina Beach, FL 89 mi138 min SSE 5.1 G 8 84°F 84°F1014.9 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 98 mi58 min S 14 G 16 83°F 83°F4 ft1014.2 hPa (+0.7)80°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Douglas, Douglas Municipal Airport, GA9 mi73 minN 010.00 miPartly Cloudy77°F75°F94%1015.9 hPa
Alma, Bacon County Airport, GA11 mi55 minN 08.00 miFair76°F76°F100%1014.7 hPa

Link to 5 minute data for KDQH

Wind History from DQH (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalm----NE9
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N6N9NE9NE7E6NE6CalmCalmNE3E4NE8NE4CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmNE5NE5E5NE4NE4E5E7
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2 days agoCalmCalmCalmCalmCalmCalmNE5NE4E5E5NE8E4NE5E6E8E4E5E4E5E4E3CalmCalmCalm

Tide / Current Tables for Burnt Fort, Satilla River, Georgia
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Burnt Fort
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Tue -- 03:49 AM EDT     3.86 feet High Tide
Tue -- 06:41 AM EDT     Sunrise
Tue -- 10:12 AM EDT     Moonset
Tue -- 10:52 AM EDT     0.04 feet Low Tide
Tue -- 04:08 PM EDT     3.45 feet High Tide
Tue -- 08:25 PM EDT     Sunset
Tue -- 11:02 PM EDT     0.23 feet Low Tide
Tue -- 11:12 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1233.73.93.63.12.31.50.70.20.10.51.32.33.13.43.32.92.31.60.90.40.2

Tide / Current Tables for Below Spring Bluff, Little Satilla River, Georgia
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Below Spring Bluff
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Tue -- 01:03 AM EDT     8.96 feet High Tide
Tue -- 06:40 AM EDT     Sunrise
Tue -- 07:18 AM EDT     0.10 feet Low Tide
Tue -- 10:11 AM EDT     Moonset
Tue -- 01:22 PM EDT     8.00 feet High Tide
Tue -- 07:28 PM EDT     0.53 feet Low Tide
Tue -- 08:25 PM EDT     Sunset
Tue -- 11:11 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.498.57.15.12.91.10.20.41.73.55.57.17.97.86.85.13.21.60.60.71.83.55.3

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