Saturday, September23, 2017 L-36.com


Marine Weather and Tides
St. Augustine South, 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 7:13AMSunset 7:20PM Saturday September 23, 2017 2:18 PM EDT (18:18 UTC) Moonrise 9:19AMMoonset 8:47PM 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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AMZ454 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- 937 Am Edt Sat Sep 23 2017
.small craft advisory in effect through late Monday night...
Rest of today..East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 14 seconds. Inland waters a moderate chop. Scattered showers and Thunderstorms.
Tonight..Northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 15 seconds. Inland waters a moderate chop. A slight chance of showers and Thunderstorms late in the evening.
Sunday..Northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 14 seconds. Inland waters a moderate chop.
Sunday night..North northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 14 seconds. Inland waters a moderate chop.
Monday..North northeast winds 10 to 15 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Inland waters a moderate chop.
Monday night..North northeast winds 5 to 10 knots becoming north northwest after midnight. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters a light chop.
Tuesday..North winds 5 to 10 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters a light chop.
Tuesday night and Wednesday..Northwest winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters mostly smooth.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 937 Am Edt Sat Sep 23 2017
Synopsis.. High pressure will remain positioned to the north of our waters as hurricane maria passes well to the east of the northeast florida and southeast georgia coasts late this weekend. Onshore winds will gradually strengthen and seas will build, with small craft advisory level seas expected through at least Tuesday night in the near shore waters and persisting offshore throughout much of next week. Winds will turn to a north northwesterly direction on Tuesday, with gradually decreasing speeds.

7 Day Forecast for Marine Location Near St. Augustine South, FL
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location: 29.87, -81.31     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 231358
afdjax
area forecast discussion
national weather service jacksonville fl
958 am edt Sat sep 23 2017

Update
12z sounding this morning showed flow aloft has shifted to the
south, and this is due to the upper low over the florida panhandle
continuing to slowly retrograde westward. Precipitable water
values were slowly increasing, and were up to near 1.6 inches.

Moisture will continue to increase today in the breezy east
northeasterly flow. Locally heavy rainfall is possible along the
coastal areas through the early to mid afternoon, with showers and
storms then moving across the interior. The heaviest rainfall is
expected for southern st johns and flagler counties, and heavy
rain is also possible across coastal southeast georgia. Highs are
forecast to be in the low to mid 80s for the coastal areas and the
mid to upper 80s well inland.

Aviation
Coastal showers will continue to move inland this morning, mainly
affecting kssi and ksgj. Showers and storms will then move inland
in the mid to late afternoon, possibly impacting kgnv.VFR
conditions are expected outside of showers storms. Northeast winds
10-15 knots will prevail this afternoon, with lighter winds
overnight.

Marine
East northeast winds 15-20 knots will prevail today. Seas will
build today and tonight as large swells from hurricane maria move
into the region. A small craft advisory is in effect for seas
through at least early next week. A high surf advisory is also in
effect beginning late tonight for the northeast florida beaches.

Rip currents: high risk of rip currents through Sunday night.

Preliminary point temps pops
Amg 87 68 87 68 40 10 10 0
ssi 83 75 84 73 30 10 10 0
jax 85 73 85 71 50 20 20 10
sgj 85 75 85 73 50 20 10 10
gnv 87 71 87 69 50 10 20 0
ocf 87 71 88 70 50 20 10 0

Jax watches warnings advisories
Fl... High rip current risk through Monday evening for coastal duval-
coastal nassau-flagler-st. Johns.

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

High surf advisory from 11 pm this evening to 5 am edt Monday
for coastal duval-flagler-st. Johns.

Ga... High rip current risk through Monday evening for coastal camden-
coastal glynn.

Am... Small craft advisory until 5 am edt Tuesday 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-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.

Kennedy nelson mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 3 mi79 min NE 11 G 12 81°F 82°F1014.8 hPa (+0.3)81°F
RCYF1 14 mi49 min 82°F
41117 15 mi57 min 82°F5 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi94 min NE 8 76°F 1017 hPa73°F
LTJF1 36 mi49 min 81°F 74°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 37 mi49 min NE 13 G 15 81°F 82°F1015.5 hPa
BLIF1 38 mi49 min NE 8.9 G 12 81°F 1016 hPa79°F
DMSF1 38 mi49 min 83°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL7 mi23 minNNE 115.00 miFog/Mist81°F77°F88%1014.3 hPa

Wind History from SGJ (wind in knots)
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Last 24hrE14NE12NE13E11NE12NE13
G16
E10--E9----E9--NE12NE4CalmNE9NE10NE11E14
G19
NE13E13NE4NE11
1 day agoNE9E8E10E8E9E7E7E8E8E10E9E7NE6E7NE6NE7NE7NE7NE14NE11NE11NE11E21E13
2 days agoE9SE9SE11SE11SE8SE7SE7SE7S6S4SW3CalmW3--W4NW3CalmNW4NW4N5N4NE7NE9NE9

Tide / Current Tables for State Road 312, Matanzas River, Florida
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State Road 312
Click for Map
Sat -- 05:20 AM EDT     -0.01 feet Low Tide
Sat -- 07:14 AM EDT     Sunrise
Sat -- 10:19 AM EDT     Moonrise
Sat -- 11:43 AM EDT     4.68 feet High Tide
Sat -- 05:53 PM EDT     0.29 feet Low Tide
Sat -- 07:20 PM EDT     Sunset
Sat -- 09:47 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.43.62.61.50.600.20.91.92.93.84.54.74.23.22.21.30.50.30.71.52.43.24

Tide / Current Tables for Crescent Beach, Matanzas River, Florida
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Crescent Beach
Click for Map
Sat -- 06:14 AM EDT     0.85 feet Low Tide
Sat -- 07:14 AM EDT     Sunrise
Sat -- 10:18 AM EDT     Moonrise
Sat -- 12:17 PM EDT     5.25 feet High Tide
Sat -- 06:46 PM EDT     1.04 feet Low Tide
Sat -- 07:19 PM EDT     Sunset
Sat -- 09:47 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.14.63.82.92.11.40.91.1233.94.75.25.14.43.52.721.31.11.62.53.44.1

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 (14,3,4,5)
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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.