Wednesday, September30, 2020
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Marine Weather and Tides
Woodbine, GA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:18AMSunset 7:13PM Wednesday September 30, 2020 10:39 AM EDT (14:39 UTC) Moonrise 6:00PMMoonset 5:05AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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- 947 Am Edt Wed Sep 30 2020
.small craft exercise caution...
This afternoon..North winds 15 to 20 knots diminishing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet with a dominant period 8 seconds. Choppy on the intracoastal waters.
Tonight..North winds 5 to 10 knots. Seas 2 to 3 feet with a dominant period 8 seconds. Mostly smooth on the intracoastal waters.
Thursday..North winds 5 to 10 knots becoming northeast in the afternoon. Seas 2 to 3 feet with a dominant period 8 seconds. A light chop on the intracoastal waters.
Thursday night..South winds 5 knots becoming northwest 10 to 15 knots after midnight. Seas 2 to 3 feet. A light chop on the intracoastal waters.
Friday..North winds 10 to 15 knots. Seas 3 to 4 feet. A moderate chop on the intracoastal waters.
Friday night..Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Saturday..Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Slight chance of showers.
Saturday night..Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Chance of showers and slight chance of Thunderstorms.
Sunday..Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Chance of showers and slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 947 Am Edt Wed Sep 30 2020
Synopsis.. High pressure will build into the area through Thursday. A secondary, dry front will come through Thursday night, with strong high pressure building in from the northwest Friday. This ridge will move to the mid- atlantic states over the weekend with a northeast flow. A coastal trough will likely develop over the coastal waters later this weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of sep 29, 2020 at 1200 utc... 62 nautical miles east northeast of flagler beach. 65 nautical miles east of saint augustine beach. 72 nautical miles east of jacksonville beach. 89 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Woodbine, GA
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location: 30.99, -81.59     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 301322 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 922 AM EDT Wed Sep 30 2020

UPDATE. Skies will clear this morning as upper trough axis over the area shifts to the southeast. Surface high will build into the area with light nw winds this morning . becoming northeast this afternoon. Temperatures will only reach the mid/upper 70s this afternoon with lower humidity. Tonights lows will fall into the 50s inland and lower 60s near the coast.

PREV DISCUSSION [723 AM EDT].

NEAR TERM [Through Tonight].

An upper level short wave over the Appalachians to the central Gulf will move east today driving a cold front to south Florida and the Florida Straits were it will become quasi-stationary. Surface high pressure over the western Gulf will ridge eastward with unseasonably cooler and drier conditions building in. The low to mid level cloud deck currently over the region will move offshore soon after sunrise with clearing skies later this morning. High temperatures will be in the mid to upper 70s with lows in the mid 50s inland to the lower 60s near the coast and St Johns River.

SHORT TERM [Thursday Through Friday].

Broad mid/upper level troughing over the eastern US on Thursday will persist and amplify late Thursday into Friday as an embedded shortwave within the longwave trough swings southeast from the Great Lakes towards the Ohio Valley and then into the northeast on Friday. This will deepen the trough southward towards the Florida Gulf coast while mid level riding persists over the western US. This pattern will keep dry, cooler than average conditions over the region on Thursday with a dry cold front passing over the area overnight Thursday into Friday with breezier conditions and another dry airmass reinforcing cooler than average conditions with abundant sunshine over the area as strong high pressure builds in from the northwest. The high will move north of the region on Saturday with an increase in north to northeast onshore flow and clouds increasing along the NE FL coast. The strengtheningonshore flow will raise the potential for coastal hazards including rough surf and erosion this weekend.

Hi Temperatures will be near normal Thursday with highs in the lower 80s and then about 5-10 degrees below average on Friday and Saturday with highs in the mid to upper 70s over SE GA,the upper 70s to near 80 over NE FL with low 80s over north central FL areas. Low temperatures Friday and Saturday morning will be below normal inland with 50s and near normal along the coast with low to mid 60s.

LONG TERM [Saturday Through Wednesday].

The period will begin with mid/upper level ridging east of the region over the western Atlantic waters near Bermuda while a new longwave trough swings southeast from the Great Lakes to the OH and TN Valleys on Sunday into early Monday. Surface high pressure will be northeast of the region on Sunday as inverted troughing develops near the FL and GA offshore waters keeping elevated northeasterly onshore flow with chances for showers over much of coastal NE FL Sunday into Monday.

The latest runs of the GFS and ECMWF diverge on the depth and timing of the mid/upper level trough Monday into Tuesday, with the GFS solution more progressive with the trough while the EMCWF deepens and slows down the trough into the beginning of next week which would take the inverted surface trough off our coast north of the region and then deepen up the Atlantic seaboard. However, both models agree on high pressure arriving north of the region by Tuesday with another dry airmass filtering into the area. At this time, will continue scattered chances of showers along the coastal areas that will make some progress inland in the NE flow while being more confined to the coast over SE GA with. Isolated thunderstorms may also be possible during the afternoon hours over portions of coastal closer to Flagler county where moisture levels will increase to 2.00 inches of Precipitable water. Breezy conditions will continue Sunday into early next week as high pressure stays northeast of the region Sunday into Monday with a front passing through on Tuesday from the NW with high pressure moving in from the northwest to follow. Temperatures will be below normal during the period for SE GA and near normal for NE FL areas due to the moist northeast flow off of the Atlantic waters keeping temperatures more moderate from the NE FL coast to areas inland.

AVIATION. [Through 12Z Thursday] VFR conditions today and tonight. NW winds this morning will be 5 to 10 knots . becoming northeastly this afternoon.

MARINE.

A strong cold front will move well south the region today with high pressure building in from the Gulf. High pressure will stretch across the area on Thursday. A secondary, dry front will come though Thursday night, with strong high pressure building in from the northwest Friday. This ridge will move to the Mid- Atlantic States over the weekend with a strong northeast flow. A coastal trough will likely develop over the coastal waters later this weekend. Rip Currents: SE GA: Low through Wednesday NE FL: Low through Wednesday

HYDROLOGY.

Minor flooding continues on the Altamaha river near Baxley but is forecast to dip below minor flood levels by tomorrow.

PRELIMINARY POINT TEMPS/POPS.

AMG 76 53 82 57 75 / 0 0 0 0 0 SSI 77 61 80 62 77 / 0 0 0 0 0 JAX 78 58 82 61 79 / 0 0 0 0 0 SGJ 78 63 82 64 80 / 0 0 0 0 0 GNV 78 55 82 58 80 / 0 0 0 0 0 OCF 79 58 83 60 82 / 0 0 0 0 0

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
FRDF1 - 8720030 - Fernandina Beach, FL 23 mi52 min NNW 7 G 11 69°F 78°F
41112 - Offshore Fernandina Beach, FL (132) 25 mi40 min 67°F 79°F3 ft
SAXG1 - Sapelo Island Reserve, GA 33 mi100 min NNW 8 62°F 1018 hPa (+3.0)60°F
BLIF1 41 mi52 min NNW 9.9 G 13
NFDF1 41 mi52 min NNW 2.9 G 6 62°F
DMSF1 42 mi52 min 80°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 42 mi52 min NNW 9.9 G 16 64°F 79°F
LTJF1 43 mi58 min 64°F 56°F
JXUF1 44 mi52 min 78°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 48 mi50 min NNW 18 G 19 66°F 79°F3 ft1017.5 hPa (+2.4)57°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick, Malcolm McKinnon Airport, GA16 mi47 minNNW 810.00 miFair65°F55°F73%1018.5 hPa
Brunswick / Glynco, GA20 mi45 minNNW 710.00 miFair63°F56°F78%1018.6 hPa

Link to 5 minute data for KSSI

Wind History from SSI (wind in knots)
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1 day agoSW9S7SW7SE5E5E7S63S5S3S54S3SW4SW5CalmS3S4S5SW4SW6SW7W7SW7
2 days agoE10E9E7E10E10E8E4NE4N4CalmE6E7E8E6E6E5E5E6CalmCalmS3SW6SW5SW6

Tide / Current Tables for Bailey Cut, 0.8 mile west of, Satilla River, Georgia
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Bailey Cut
Click for Map
Wed -- 03:17 AM EDT     -0.33 feet Low Tide
Wed -- 06:05 AM EDT     Moonset
Wed -- 07:19 AM EDT     Sunrise
Wed -- 08:39 AM EDT     6.52 feet High Tide
Wed -- 03:31 PM EDT     -0.27 feet Low Tide
Wed -- 07:00 PM EDT     Moonrise
Wed -- 07:12 PM EDT     Sunset
Wed -- 09:05 PM EDT     6.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.31.70.3-0.301.43.35.16.36.55.94.83.420.6-0.2-0.112.84.76.16.86.55.6

Tide / Current Tables for St. Johns River Entrance, Florida Current (3)
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St. Johns River Entrance
Click for Map
Wed -- 01:27 AM EDT     -1.78 knots Max Ebb
Wed -- 04:58 AM EDT     0.00 knots Slack
Wed -- 06:05 AM EDT     Moonset
Wed -- 07:19 AM EDT     Sunrise
Wed -- 07:31 AM EDT     2.29 knots Max Flood
Wed -- 10:33 AM EDT     -0.00 knots Slack
Wed -- 01:38 PM EDT     -1.86 knots Max Ebb
Wed -- 05:18 PM EDT     0.00 knots Slack
Wed -- 06:59 PM EDT     Moonrise
Wed -- 07:11 PM EDT     Sunset
Wed -- 07:51 PM EDT     2.36 knots Max Flood
Wed -- 10:57 PM EDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.5-1.8-1.7-1.5-101.42.22.21.70.7-0.5-1.4-1.8-1.8-1.6-1.2-0.412.12.421.2-0.1

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Jacksonville, FL
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