Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
St. Augustine South, 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 7:27AMSunset 7:37PM Wednesday March 20, 2019 4:56 AM EDT (08:56 UTC) Moonrise 6:25PMMoonset 6:25AM Illumination 99% Phase: Full Moon; Moon at 14 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 Expires:201903201545;;639223 Fzus52 Kjax 200742 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 335 Am Edt Wed Mar 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. Amz450-452-454-201545- 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- 335 Am Edt Wed Mar 20 2019
.small craft advisory in effect through this evening...
Today..North northeast winds 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 9 seconds. Inland waters choppy. A chance of showers in the morning.
Tonight..North northwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday..West southwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. Inland waters a light chop.
Thursday night..Northwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters a moderate chop.
Friday..West northwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Friday night..West northwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Saturday..North winds 10 to 15 knots becoming northeast 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Inland waters a light chop.
Saturday night..East winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
Sunday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 335 Am Edt Wed Mar 20 2019
Synopsis.. Strong northeast flow will continue today then weaken tonight and Thursday as weak high pressure builds into the region. A trof will push offshore north of the waters Thursday night and increase the winds and seas into Friday with another small craft advisory possible. High pressure will build northwest of the waters over the weekend with diminishing winds and seas.
Gulf stream.. The approximate location of the west wall of the gulf stream as of mar 19, 2019 at 1200 utc... 65 nautical miles east northeast of flagler beach. 73 nautical miles east of saint augustine beach. 83 nautical miles east of jacksonville beach. 90 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


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


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 200714
afdjax
area forecast discussion
national weather service jacksonville fl
314 am edt Wed mar 20 2019

Northeast flow impacts along the coast continue today with
high surf and rip currents along with minor coastal flooding and
beach erosion during times of high tide...

Near term today-tonight
Today... Northeast flow event will continue today although winds
will not be as strong with sustained winds generally 15-20g25-30
mph along the coast and 10-15g20-25 mph further inland. Rainfall
already shifting off the NE fl coast and only a small chance of a
few coastal showers this morning with mostly cloudy skies and dry
conditions elsewhere. Impacts will linger along the atlc coast
with high surf, rip currents and minor coastal flooding during
times of high tide at the beaches and into some inland waterways
near the coast. MAX temps slightly milder today in the middle 60s
along the coast and upper 60s lower 70s further inland but still
below normal levels.

Tonight... Weak high pressure ridge builds in from the west and
winds continue to weaken and become light n-nw overnight with
skies becoming mostly clear during the overnight hours. Rather
cool temps with widespread lows in the 40s, and even some upper
30s possible over inland SE ga, but still likely too mild for any
frost formation.

Short term Thursday through Friday night
A strong upper trough will move across the SE states on Thursday
but airmass will be too dry for precipitation. The trough will
move off the east coast Thursday night with surface high pressure
building into the area through Friday. Mostly clear skies expected
to prevail with high temperatures in the low mid 70s and lows in
the mid upper 40s.

Long term Saturday through Tuesday
High pressure at surface and aloft will move over SE ga NE fl on
Saturday and then shift east of the area on Sunday. Temperature
and moisture levels will increase as winds veer to the south
Sunday and then southwest on Monday. An approaching upper trough
and associated cold front will bring a chance of showers and
thunderstorms Monday night and Tuesday. Temperatures will be at or
slightly above normal through the period.

Aviation
MainlyVFR CIGS in the 4000-6000 ft range today with some gusty
n-ne winds at 10-15 knots with higher gusts at sgj to 25-28 knots.

LowerVFR CIGS will start to break up this evening at TAF sites
with multi-layerVFR clouds tonight.

Marine
Strong northeast flow will continue today with seas of 7-10 ft
expected and possibly a few brief gusts to gale force this
morning, then decreasing trend starts tonight with SCA conds
ending for the nearshore this evening, but continuing for the
offshore waters as seas remain elevated into Thursday as winds
becoming north tonight then northwest on Thursday as speeds
generally 10-15 knots. A trof pushing offshore Thu night will
increase n-nw winds once again to 15-20 knots and seas back into
the 5-8 ft range and small craft advisories may be required once
again. High pressure builds into the region over the weekend with
winds 15 knots or less and seas falling to 2-5 ft with no
headlines.

Rip currents high surf: strong onshore flow will continue high
risk of rip currents today becoming moderate on Thursday as winds
slowly become offshore. Surf breakers of 5-8 feet along the coast
today will slowly fade by tonight and will allow advisory to
expire this evening at 11 pm.

Coastal flood: minor flooding still on track for this morning's
high tide cycle with tidal departures in the 1-2 ft range and will
keep advisory in place. By this evening as flow weakens still some
chance for some spotty minor flooding during the evening high tide
cycle and will hold advisory in place through 11 pm.

Fire weather Drier air will advect into the area today with
near critically low rhs over interior SE ga and the suwannee
valley. Near critically low rhs with high dispersions are expected
on Thursday.

Preliminary point temps pops
Amg 68 40 71 44 0 0 0 0
ssi 63 48 70 49 0 0 0 0
jax 68 46 74 48 10 0 0 0
sgj 65 50 72 50 10 0 0 0
gnv 71 46 74 47 10 0 0 0
ocf 73 47 74 47 10 0 0 0

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

High surf advisory until 11 pm edt this evening for coastal
duval-coastal flagler-coastal nassau-coastal st. Johns.

Coastal flood advisory until 11 pm edt this evening for coastal
duval-coastal flagler-coastal nassau-coastal st. Johns.

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

High surf advisory until 11 pm edt this evening for coastal
camden-coastal glynn.

Coastal flood advisory until 11 pm edt this evening for coastal
camden-coastal glynn.

Am... Small craft advisory until 5 pm edt Thursday 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.

Hess zibura


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 3 mi56 min N 23 G 25 61°F 62°F1019.6 hPa (-1.4)48°F
RCYF1 14 mi38 min 66°F
41117 15 mi26 min 63°F9 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi71 min N 14 61°F 1021 hPa53°F
LTJF1 36 mi38 min 58°F 43°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 37 mi38 min NNE 14 G 19 58°F 62°F1020.2 hPa
BLIF1 38 mi38 min NNE 9.9 G 12 58°F 1021.7 hPa44°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 mi60 minNNE 16 G 2010.00 miMostly Cloudy59°F46°F64%1020.1 hPa

Wind History from SGJ (wind in knots)
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Last 24hrNW4N9NW7NW5NE12N11N17
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2 days agoNW6N11N11N9N8N15N13
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Tide / Current Tables for State Road 312, Matanzas River, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Crescent Beach, Matanzas River, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
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Weather Map and Satellite Images
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GOES 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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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 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.