Tuesday, January28, 2020
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Marine Weather and Tides
Sawgrass, FL

Version 3.4
NOTICE
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 7:17AMSunset 5:59PM Tuesday January 28, 2020 4:47 AM EST (09:47 UTC) Moonrise 9:47AMMoonset 9:30PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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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AMZ452 Expires:202001281700;;633153 Fzus52 Kjax 280715 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 215 Am Est Tue Jan 28 2020 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. Amz450-452-454-281700- 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- 215 Am Est Tue Jan 28 2020
Today..North northwest winds 10 to 15 knots early this morning. Winds becoming north northeast 10 to 15 knots this afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet this morning. Seas subsiding to 2 to 4 feet this afternoon. Dominant period 11 seconds. Inland waters a moderate chop.
Tonight..North winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 11 seconds. Inland waters smooth.
Wednesday..Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 11 seconds. Inland waters a light chop. A chance of showers.
Wednesday night..Northeast winds 10 to 15 knots. Seas 2 to 3 feet building to 3 to 5 feet with occasional seas up to 6 feet after midnight. Dominant period 4 seconds. Inland waters a moderate chop. Showers likely.
Thursday..North northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 5 seconds. Inland waters choppy. A chance of showers.
Thursday night..Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. A chance of showers.
Friday..East winds 10 to 15 knots. Seas 2 to 4 feet. Showers likely.
Friday night..Southeast winds 10 to 15 knots becoming west southwest after midnight. Seas 2 to 4 feet. Showers likely.
Saturday..Northwest winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 215 Am Est Tue Jan 28 2020
Synopsis.. Weak high pressure will dominate north of the region today and tonight. An area of low pressure will track east across the gulf of mexico Wednesday. This low will cross central florida and exit offshore of the atlantic coast Wednesday night. A brief period of small craft advisory conditions will be possible Thursday as the low departs and high pressure strengthens north of the region. Another gulf low will track across the local waters late Friday. High pressure will build east across the gulf of mexico this weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 28, 2020 at 1200 utc... 49 nautical miles east northeast of flagler beach. 48 nautical miles east northeast of saint augustine beach. 49 nautical miles east of jacksonville beach. 63 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Sawgrass CDP, FL
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location: 30.19, -81.36     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 280723 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 223 AM EST Tue Jan 28 2020

. SUNNY AND SEASONALLY WARM TODAY .

. COOL TONIGHT WITH PATCHY FROST POTENTIAL WELL INLAND .

NEAR TERM [Through Tonight].

Sunny with near climo highs in the 60s today as a distant surface ridge centered over the Midwest extends a ridge axis across the deep south. Under the ridge axis this morning, could have some patchy fog form over inland SE GA and parts of the Suwannee River Valley while elevated NNW winds will keep areas farther east more mixed with little fog potential.

Tonight the ridge builds eastward across the Great Lakes region with the ridge axis extending southward over the local area. NNE drainage flow will funnel cool and dry air southward across the forecast area with widespread lows tonight falling into the mid/upper 30s inland to low 40s along the coast where winds will gradually become NNE toward daybreak. With dew pts expected to mix down into the lower 30s this afternoon across inland SE GA and Suwannee River Valley and calm winds and mostly clear skies tonight, there is potential for frost across inland SE GA and the Suwannee River Valley of NE FL.

SHORT TERM [Wednesday Through Thursday].

High pressure will lift off to the north on Wednesday as low pressure from out of the Gulf treks across southeast Georgia and northeast Florida, traveling from west to east. This will bring in showers throughout the region from Wednesday afternoon on through early Thursday, with convective developments lingering along the coastline into the evening hours with dry conditions expected for inland areas for much of the day on Thursday. Temperatures will be near seasonal averages for midweek, with max temps ranging predominantly within the 60s and with overnight min temps dropping into the mid to upper 40s.

LONG TERM [Friday Through Tuesday].

A Gulf low ahead of a cold front will move in over the region on Friday, with showers passing over the area throughout the day and on into early Saturday. High pressure from behind the front will settle in over the region on Saturday and Sunday, bringing in dry weather conditions and clear skies. Forecast shows temperatures will be near seasonal averages through the end of the week and into the weekend, with temps arming slightly on Monday.

AVIATION. [Through 06Z Wednesday]

A fading deck of MVFR ceilings will bring the potential for restrictions to JAX/VQQ/CRG over the next couple of hours, but erosion is expected before the deck nears SGJ/GNV. After this deck of clouds fades, prevailing VFR conditions are expected through the forecast period as NNW winds near 5 kts early this morning transition to more NNE into the afternoon with speeds nearing 10 kts at coastal terminals. This evening winds go calm inland with a light E flow along the coast 3-5 kts at SGJ/CRG.

MARINE.

Weak high pressure will dominate north of the region today and tonight. A NNW wind surge near 15 kts this morning will relax into the afternoon as winds veer NNE with sustained speeds 10-15 kts. Elevated combined seas near 6 ft early this morning near the Fl Gulf Stream waters will continue Small Craft Exercise Caution headline to start the day for the outer legs, then seas will further subside below SCEC criteria into the afternoon. An area of low pressure will track east across the Gulf of Mexico Wednesday. This low will cross central Florida and exit offshore of the Atlantic coast Wednesday night. A brief period of Small Craft Advisory conditions will be possible Thursday as the low departs and high pressure strengthens north of the region. Another Gulf low will track across the local waters late Friday. High pressure will build east across the Gulf of Mexico this weekend with persistent, elevated WNW flow.

Rip Currents: Low risk of rip currents today due to light NNW flow. Low risk expected for SE GA on Wed with Moderate risk for NE FL beaches due to slightly stronger NE flow along the coast.

HYDROLOGY.

Minor river flooding continued along portions of the Altamaha River basin.

PRELIMINARY POINT TEMPS/POPS.

AMG 63 36 62 45 62 / 0 0 40 60 20 SSI 60 43 61 50 59 / 0 0 30 70 10 JAX 65 39 65 50 64 / 0 0 30 60 20 SGJ 62 44 66 52 65 / 0 0 30 50 20 GNV 67 39 67 49 66 / 0 0 30 40 10 OCF 68 40 70 50 70 / 0 0 30 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 WavesPressureDewPt
LTJF1 14 mi53 min 51°F 48°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi53 min 50°F 58°F1014.5 hPa
BLIF1 16 mi53 min 51°F 1015.2 hPa51°F
DMSF1 17 mi53 min 59°F
41117 20 mi47 min 61°F3 ft
NFDF1 20 mi53 min 48°F
SAUF1 - St. Augustine, FL 24 mi47 min NNW 8.9 G 12 52°F 58°F1014.2 hPa (-0.0)
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi53 min 54°F 57°F1014.5 hPa
41112 - Offshore Fernandina Beach, FL (132) 36 mi47 min 57°F2 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi62 min NW 1.9 51°F 1016 hPa47°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL13 mi54 minN 910.00 miFair50°F46°F89%1014.5 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL14 mi55 minNNW 510.00 miFair50°F46°F89%1014.4 hPa
Northeast Florida Regional Airport, FL15 mi51 minNW 610.00 miFair49°F46°F90%1014.7 hPa
Jacksonville Naval Air Station, FL17 mi54 minNNW 710.00 miFair53°F46°F77%1014.4 hPa

Link to 5 minute data for KCRG

Wind History from CRG (wind in knots)
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Last 24hrCalmCalmNE4CalmN3E4Calm3S7W9S6SW6SW5SW5W3NW4NW6N8N6N3NW8NW6NW7N9
1 day agoNW6NW6NW6CalmW3NW9NW9W6W9N10NW9NW10NW5NW4NW3NW4CalmCalmCalmE3N3CalmS5Calm
2 days agoNW8W5W6W3NW8NW11NW10NW8NW13W8NW9NW12NW8W6W4W4NW7NW7NW8NW7W4CalmNW6W4

Tide / Current Tables for Palm Valley, ICWW, Florida
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Palm Valley
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Tue -- 12:33 AM EST     1.29 feet High Tide
Tue -- 06:25 AM EST     -2.47 feet Low Tide
Tue -- 07:18 AM EST     Sunrise
Tue -- 09:46 AM EST     Moonrise
Tue -- 01:03 PM EST     2.06 feet High Tide
Tue -- 05:58 PM EST     Sunset
Tue -- 07:00 PM EST     -2.22 feet Low Tide
Tue -- 09:29 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.30.90.2-0.6-1.6-2.4-2.3-1.3-0.10.81.51.92.11.91.20.3-0.7-1.7-2.2-1.7-0.70.10.7

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
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Tue -- 12:21 AM EST     -0.00 knots Slack
Tue -- 02:54 AM EST     -1.84 knots Max Ebb
Tue -- 06:49 AM EST     0.00 knots Slack
Tue -- 07:18 AM EST     Sunrise
Tue -- 09:30 AM EST     1.94 knots Max Flood
Tue -- 09:46 AM EST     Moonrise
Tue -- 12:47 PM EST     -0.00 knots Slack
Tue -- 03:27 PM EST     -1.93 knots Max Ebb
Tue -- 05:58 PM EST     Sunset
Tue -- 07:29 PM EST     0.00 knots Slack
Tue -- 09:29 PM EST     Moonset
Tue -- 09:56 PM EST     1.74 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.4-0.7-1.6-1.8-1.7-1.4-0.80.21.21.91.91.50.8-0.3-1.4-1.9-1.9-1.7-1.3-0.50.51.41.71.5

Weather Map
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wmap_A
GEOS Local Image of Southeast    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (4,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.