Monday, October23, 2017 L-36.com


Marine Weather and Tides
Sawgrass, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:32AMSunset 6:46PM Monday October 23, 2017 2:08 AM EDT (06:08 UTC) Moonrise 9:51AMMoonset 8:42PM Illumination 10% 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 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- 945 Pm Edt Sun Oct 22 2017
.small craft exercise caution...
Rest of tonight..Southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Inland waters a moderate chop. A chance of showers.
Monday..South winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Inland waters a moderate chop. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Monday night..Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the morning. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers likely and a chance of Thunderstorms in the evening, then a chance of showers and a slight chance of Thunderstorms after midnight.
Tuesday..Northwest winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the morning.
Tuesday night..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop.
Wednesday and Wednesday night..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters choppy.
Thursday..West northwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Thursday night..South winds 5 to 10 knots becoming west southwest after midnight. Seas 2 to 3 feet. Inland waters a light chop.
Friday..North northeast winds 5 to 10 knots becoming east southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 945 Pm Edt Sun Oct 22 2017
Synopsis..High pressure continues to strengthen northeast of the area waters. A strong cold front will sweep across the region from the west Monday into early Tuesday. A strong line of storms will be possible as this front moves across the area. High pressure will build over the region the remainder of the week.

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 230138
afdjax
area forecast discussion
national weather service jacksonville fl
938 pm edt Sun oct 22 2017

Update An increasingly moist south to southeast flow... Ahead
of a potent deep layer trough... Will continue to produce isolated
showers mainly across areas west of the i-75 corridor tonight.

While radar has indicated a weakening trend with this activity
the last several hours... Isolated showers will persist across
this area. Another area of scattered showers and isolated storms
extended from the offshore atlantic waters to the upper SE ga
coast. This activity was associated with a coastal trough that
will weaken and lift north tonight which will keep most of
the activity offshore but an isolated shower still possible
near the coast.

Aviation Have continued with low endVFR CIGS at the terminals
although a brief period of MVFR is possible. Isolated showers
possible near the coast late tonight into Monday morning.

Marine Small craft exercise caution tonight. Southeast winds
15 to 20 knots. Seas 4 to 6 feet. Scattered showers mainly
offshore with a few isolated showers near shore.

Rip currents: a moderate risk is expected for Monday.

Preliminary point temps pops
Amg 72 79 59 75 30 70 50 0
ssi 75 79 67 79 60 60 60 10
jax 74 82 65 79 20 50 50 10
sgj 75 82 68 79 20 50 50 20
gnv 73 81 64 79 20 60 60 10
ocf 73 81 66 80 20 50 60 10

Jax watches warnings advisories
Fl... High rip current risk until 6 am edt Monday for coastal duval-
coastal nassau-flagler-st. Johns.

Coastal flood advisory until 6 am edt Monday for clay-coastal
duval-flagler-inland duval-st. Johns.

Coastal flood warning until 6 am edt Monday for putnam.

Ga... High rip current risk until 6 am edt Monday for coastal camden-
coastal glynn.

Am... None.

Pp ak nm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 14 mi51 min 78°F 75°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi51 min SE 5.1 G 7 78°F 77°F1019.5 hPa
BLIF1 16 mi51 min SE 4.1 G 6 78°F 1020.1 hPa78°F
DMSF1 17 mi51 min 77°F
JXUF1 18 mi51 min 77°F
41117 20 mi47 min 78°F5 ft
SAUF1 - St. Augustine, FL 24 mi69 min SSE 13 G 14 79°F 78°F1019.2 hPa (-0.9)
RCYF1 29 mi51 min 77°F
FRDF1 - 8720030 - Fernandina Beach, FL 34 mi51 min SE 5.1 G 9.9 77°F 76°F1020 hPa
41112 - Offshore Fernandina Beach, FL (132) 36 mi39 min 76°F4 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 37 mi84 min SSE 4.1 78°F 1021 hPa76°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 mi76 minSSE 79.00 miFair78°F72°F82%1019.2 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL14 mi77 minSE 99.00 miMostly Cloudy0°F0°F%1019.4 hPa
Northeast Florida Regional Airport, FL15 mi73 minSSE 69.00 miFair78°F73°F87%1019.3 hPa
Jacksonville Naval Air Station, FL17 mi76 minSE 79.00 miOvercast78°F75°F90%1018.7 hPa

Wind History from CRG (wind in knots)
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Last 24hrE9E5E9E6E6E4E3E8E9E11
G18
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G21
SE8SE10E7SE8E7SE8SE8SE9SE11SE7SE7SE6
1 day agoE4E4CalmE5E4E5E7E8E12
G20
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E11NE6NE5E6E6E8E9SE7S6Calm
2 days agoNE6NE6NE9NE7NE8NE5NE7NE10NE10
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NE14NE11NE13E11E6NE9NE9E10E10E8NE6NE6

Tide / Current Tables for Palm Valley, ICWW, Florida
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Palm Valley
Click for Map
Mon -- 01:30 AM EDT     4.75 feet High Tide
Mon -- 07:04 AM EDT     0.39 feet Low Tide
Mon -- 07:33 AM EDT     Sunrise
Mon -- 10:50 AM EDT     Moonrise
Mon -- 01:57 PM EDT     5.21 feet High Tide
Mon -- 06:46 PM EDT     Sunset
Mon -- 07:47 PM EDT     0.56 feet Low Tide
Mon -- 09:42 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.24.74.742.91.70.80.40.71.52.53.54.455.24.93.92.71.60.80.611.82.7

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Mon -- 01:07 AM EDT     -0.00 knots Slack
Mon -- 03:37 AM EDT     -1.98 knots Max Ebb
Mon -- 07:28 AM EDT     0.00 knots Slack
Mon -- 07:33 AM EDT     Sunrise
Mon -- 10:12 AM EDT     2.21 knots Max Flood
Mon -- 10:51 AM EDT     Moonrise
Mon -- 01:34 PM EDT     -0.00 knots Slack
Mon -- 04:08 PM EDT     -2.02 knots Max Ebb
Mon -- 06:45 PM EDT     Sunset
Mon -- 08:24 PM EDT     0.00 knots Slack
Mon -- 09:42 PM EDT     Moonset
Mon -- 10:44 PM EDT     1.61 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.1-1.1-1.9-1.9-1.7-1.2-0.50.61.62.221.50.7-0.5-1.6-2-1.9-1.7-1.2-0.40.61.41.6

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jacksonville, FL (2,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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.