Saturday, April20, 2019 L-36.com


Marine Weather and Tides
Sawgrass, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:51AMSunset 7:57PM Saturday April 20, 2019 12:13 PM EDT (16:13 UTC) Moonrise 8:25PMMoonset 6:55AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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:201904202030;;214509 Fzus52 Kjax 201228 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 828 Am Edt Sat Apr 20 2019 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. Amz450-452-454-202030- 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- 828 Am Edt Sat Apr 20 2019
.small craft advisory in effect through this evening...
Rest of today..West southwest winds around 20 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A slight chance of showers.
Tonight..West winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 8 seconds. Inland waters a light chop.
Sunday..West northwest winds 5 to 10 knots becoming southwest. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Sunday night..Northwest winds around 5 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters smooth.
Monday..North northeast winds 5 to 10 knots becoming east. Seas 2 to 3 feet. Inland waters a light chop.
Monday night and Tuesday..East northeast winds around 5 knots. Seas 2 to 3 feet. Inland waters smooth.
Tuesday night..Southeast winds around 5 knots becoming southwest after midnight. Seas 2 to 3 feet. Inland waters smooth.
Wednesday..South southwest winds around 5 knots becoming south southeast. Seas 2 to 3 feet. Inland waters smooth.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 828 Am Edt Sat Apr 20 2019
Synopsis.. Troughing will remain across the region through this evening. High pressure will build from the southwest overnight. High pressure will prevail nearly overhead through Tuesday night, then move to the east.
Gulf stream.. The approximate location of the west wall of the gulf stream as of apr 20, 2019 at 1200 utc... 56 nautical miles east of flagler beach. 63 nautical miles east of saint augustine beach. 76 nautical miles east of jacksonville beach. 92 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


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


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 201150
afdjax
area forecast discussion
national weather service jacksonville fl
750 am edt Sat apr 20 2019

Update through this evening ...

a large trough at the surface and aloft will be across the eastern
us today. The base of the upper trough will pivot east across the
forecast area today, helping to produce clouds and a few spotty
showers. The best chance for showers will be over NE fl where
better moisture is available.

Temperatures will trend below normal this afternoon with highs in
the 60s, except low 70s along the NE fl coast.

Aviation 12z TAF period ...

prevailingVFR conditions this 12z TAF period. Gusty winds are
expected today, along with the chance for a few spotty showers.

Preliminary point temps pops
Amg 66 49 76 47 10 10 0 0
ssi 69 55 73 56 10 10 0 0
jax 70 51 76 50 20 10 0 0
sgj 72 53 76 55 20 10 0 0
gnv 70 49 77 47 20 30 0 0
ocf 70 50 77 47 20 30 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 5 am edt Sunday for waters from
altamaha sound ga to fernandina beach fl from 20 to 60 nm-
waters from fernandina beach to st. Augustine fl from 20 to
60 nm-waters from st. Augustine to flagler beach fl from 20
to 60 nm.

Small craft advisory until 11 pm edt this evening for 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.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 14 mi43 min 62°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi43 min W 18 G 26 61°F 66°F1013.7 hPa
BLIF1 16 mi43 min WSW 19 G 26 62°F 1014.8 hPa48°F
41117 20 mi43 min 72°F3 ft
SAUF1 - St. Augustine, FL 24 mi73 min WSW 11 G 15 63°F 71°F1014.2 hPa (+1.9)51°F
RCYF1 29 mi43 min 73°F
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi43 min W 18 G 22 62°F 68°F1014.4 hPa
41112 - Offshore Fernandina Beach, FL (132) 36 mi43 min 67°F3 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi88 min W 8 67°F 1015 hPa60°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 mi20 minWSW 20 G 2910.00 miA Few Clouds and Breezy64°F42°F45%1014 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL14 mi21 minW 17 G 2610.00 miA Few Clouds63°F43°F48%1013.4 hPa
Northeast Florida Regional Airport, FL15 mi17 minW 19 G 2610.00 miA Few Clouds and Breezy65°F48°F54%1014.2 hPa
Jacksonville Naval Air Station, FL17 mi20 minWSW 20 G 2710.00 miPartly Cloudy and Breezy65°F37°F37%1014.1 hPa

Wind History from CRG (wind in knots)
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Last 24hrW20
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SW7W8W8W5W3SW3SW4CalmSW4W12W9W14
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2 days ago4SE7
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E9SE6E5SE5E4E4SE3SE3CalmCalmCalmCalmCalmCalmCalmS5S11
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S13S10

Tide / Current Tables for Palm Valley, ICWW, Florida
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Palm Valley
Click for Map
Sat -- 05:42 AM EDT     -2.84 feet Low Tide
Sat -- 06:53 AM EDT     Sunrise
Sat -- 07:55 AM EDT     Moonset
Sat -- 12:14 PM EDT     2.10 feet High Tide
Sat -- 05:59 PM EDT     -3.10 feet Low Tide
Sat -- 07:55 PM EDT     Sunset
Sat -- 09:25 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.62.31.30.2-1.2-2.5-2.8-1.9-0.80.111.72.11.91.20.1-1.1-2.4-3.1-2.5-1.2-0.111.9

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Sat -- 02:39 AM EDT     -2.67 knots Max Ebb
Sat -- 06:18 AM EDT     0.00 knots Slack
Sat -- 06:53 AM EDT     Sunrise
Sat -- 07:54 AM EDT     Moonset
Sat -- 08:51 AM EDT     2.33 knots Max Flood
Sat -- 11:49 AM EDT     -0.00 knots Slack
Sat -- 02:32 PM EDT     -2.42 knots Max Ebb
Sat -- 06:11 PM EDT     0.00 knots Slack
Sat -- 07:56 PM EDT     Sunset
Sat -- 09:03 PM EDT     2.85 knots Max Flood
Sat -- 09:26 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-2.1-2.6-2.7-2.4-1.7-0.412.12.321.1-0.3-1.7-2.3-2.4-2.1-1.4-0.31.22.42.82.61.8

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (12,3,4,5)
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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 numerious 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.