Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
St. Augustine Beach, FL

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:10AMSunset 7:25PM Wednesday September 19, 2018 10:46 PM EDT (02:46 UTC) Moonrise 3:20PMMoonset 1:14AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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- 900 Pm Edt Wed Sep 19 2018
Rest of tonight..South southeast winds 5 to 10 knots becoming northeast in the morning. Seas 2 to 3 feet. Dominant period 10 seconds. Inland waters smooth.
Thursday..East northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 10 seconds becoming 4 seconds in the afternoon. Inland waters a light chop.
Thursday night..East winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms after midnight.
Friday..East northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.
Friday night..East northeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Saturday..East northeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Saturday night..East winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters smooth. A slight chance of showers and Thunderstorms.
Sunday..East northeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Sunday night and Monday..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters mostly smooth. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 900 Pm Edt Wed Sep 19 2018
Synopsis.. Weak high pressure has built over the southeast u.s. With a weak frontal boundary sliding southward over the water tonight. The front will mix out tomorrow with north- easterly to easterly flow dominating. High pressure will weaken just north of our region during the weekend, while a long period swell potentially impacts our waters.


7 Day Forecast for Marine Location Near St. Augustine Beach, FL
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location: 29.87, -81.26     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 200049
afdjax
area forecast discussion
national weather service jacksonville fl
849 pm edt Wed sep 19 2018

Update
Still a few scattered showers and thunderstorms across inland
areas this evening, but the overall intensity of the storms has
decreased from a few hours ago. These will fade over the next
couple of hours with a dry overnight expected. Pressure regime
changes tomorrow with high pressure building to north. This will
bring the onset of easterly flow and cooler conditions for eastern
zones Thursday afternoon. Temperatures will warm up into the lower
to mid 90s west of i-95, with only upper 80s for coastal areas
east of i-95. With easterly flow, expecting a much different day
with regards to precipitation. Easterly flow will reduce the
amount of convergence on the east coast sea-breeze keeping any
showers and thunderstorms west toward the i-75 corridor. But even
this activity is supposed to fairly isolated.

Aviation 00z taf
showers and thunderstorms decreasing in coverage this evening with
remnant cloud debris gradually clearly overnight. Kept vcts in for
gnv until 02z to cover current threat. With the onset of easterly
flow tomorrow, likely to see marine stratocumulus moving inland
off the waters. Scattered ceilings around two thousand feet added
for mainly coastal TAF sites. Much drier air over the area
tomorrow so excluded any precipitation wording for now.

Marine
Pressure regime introduces north-easterly flow over the waters
tomorrow as high pressure builds to the north. Winds 10-15 knots
with gust over 20 knots tomorrow afternoon with dry conditions
expected given the dry airmass.

Rip currents: moderate risk.

Preliminary point temps pops
Amg 71 92 71 90 0 0 0 20
ssi 78 87 77 87 0 0 10 20
jax 73 90 74 88 20 10 10 20
sgj 77 88 75 85 20 10 20 20
gnv 73 92 72 91 30 30 10 20
ocf 74 92 72 91 30 30 10 10

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 1 mi46 min NNW 4.1 G 5.1 81°F 83°F1015.9 hPa (+1.6)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi61 min WSW 1.9 79°F 1016 hPa76°F
RCYF1 16 mi28 min 88°F
LTJF1 37 mi28 min 79°F 73°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 38 mi28 min W 2.9 G 5.1 78°F 85°F1016.2 hPa
DMSF1 39 mi34 min 86°F
BLIF1 39 mi34 min Calm G 1.9 78°F 1016.8 hPa78°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, FL8 mi50 minN 010.00 miFair79°F73°F85%1015.8 hPa

Wind History from SGJ (wind in knots)
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Last 24hrS4SW4SW4SW4SW3SW4SW3CalmSW3SW6SW5W664N7--E7S4SW4W3NW3N6SW3Calm
1 day agoW3SW3S4S5SW4S4CalmSW6SW5SW5W6W74NW5NW5SE10SE9SE11SE9S11SE8SW7SW4SW3
2 days agoS6S5S5S6SW4CalmSW3S3S5S4S8S6S6SE11SE114SE6E9SE9S10S8S5----

Tide / Current Tables for St. Augustine Beach, Atlantic Ocean, 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
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (22,6,7,8)
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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.