Tuesday, August20, 2019 L-36.com


Marine Weather and Tides
St. Augustine, FL

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:54AMSunset 8:03PM Tuesday August 20, 2019 1:28 PM EDT (17:28 UTC) Moonrise 10:10PMMoonset 10:13AM Illumination 74% Phase: Waning Gibbous; Moon at 20 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:201908202045;;515015 Fzus52 Kjax 201235 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 835 Am Edt Tue Aug 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. Amz450-452-454-202045- 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- 835 Am Edt Tue Aug 20 2019
Rest of today..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tonight..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Wednesday..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Wednesday night..South winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday night..South winds 10 to 15 knots. Seas 2 to 3 feet.
Friday..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Friday night..South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Saturday..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 835 Am Edt Tue Aug 20 2019
Synopsis.. The axis of atlantic ridging will remain across the waters the next few days. A frontal boundary will then move into the southeastern states and is expected to stall just north of the georgia waters this weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 20, 2019 at 1200 utc... 64 nautical miles east of flagler beach. 73 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 94 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near St. Augustine, FL
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location: 29.88, -81.31     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 201231
afdjax
area forecast discussion
national weather service jacksonville fl
831 am edt Tue aug 20 2019

Update
Fairly quiet conditions this morning as the trough of low pressure
has moved into south carolina and weak ridging has pushed into the
area. The ridge axis was near the florida georgia border. The 12z
sounding showed light south southeast winds in the low levels and
southwesterly flow aloft. This averages out to slow storm
movement to the north, with storms propagating inland due to the
east coast sea breeze pushing westward. The 12z sounding showed
drier conditions compared to the last several days, with
precipitable water values around 1.8-1.9 inches. Isolated to
scattered showers storms will form along the east coast sea breeze
beginning around 18z as it pushes inland, with the best chances
in northeast florida. Storms will then move across the interior,
with numerous showers and storms across interior northeast florida
in the mid to late afternoon. Highs will be in the lower 90s
today, except the upper 80s at the beaches.

Aviation
Vfr conditions forecast to prevail this morning into the early
afternoon. Light winds this morning will become east to southeast
around 10 knots as the east coast sea breeze moves inland.

Scattered showers and storms will form along the east coast sea
breeze, especially in northeast florida, with storms propagating
towards the interior through the late afternoon. Storms will get
near the northeast florida TAF sites in the afternoon, with the
best chances at kgnv and kvqq. Light winds are expected overnight.

Preliminary point temps pops
Amg 91 72 90 73 30 30 30 30
ssi 88 76 88 76 20 10 10 10
jax 91 75 90 75 40 10 20 10
sgj 89 75 89 75 40 10 20 20
gnv 91 72 90 73 60 30 30 20
ocf 91 72 90 73 70 30 30 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Kennedy peterson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 3 mi89 min E 7 G 7 82°F 82°F1020.8 hPa (+0.0)
41117 15 mi59 min 82°F2 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 16 mi104 min E 6 85°F 1022 hPa85°F
LTJF1 35 mi59 min 86°F
JXUF1 36 mi65 min 85°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 36 mi59 min E 5.1 G 8.9 85°F 82°F1020.8 hPa
BLIF1 37 mi59 min N 1.9 G 2.9 86°F 1021.3 hPa79°F
DMSF1 37 mi59 min 85°F
NFDF1 40 mi59 min Calm G 4.1 82°F 1022.1 hPa

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, FL6 mi93 minE 710.00 miPartly Cloudy86°F78°F77%1020.7 hPa

Link to 5 minute data for KSGJ

Wind History from SGJ (wind in knots)
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Last 24hr--SE9--SE12SE12SE7SW3S3S3----------CalmCalm--NW3NW3Calm--E7E7E10
1 day agoW14
G22
SW6SW5W44SW3W9
G18
SW5S5----S4--SW5----S6SW5SW4SW4SW5SW8SW9S11
2 days agoS7SW7W9SW9SW9SW6SW3NW4W3S3S4S5W6W4--S3SW5S4S5----SW5W8SW7

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
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 (13,3,4,5)
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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.