Wednesday, July17, 2019 L-36.com


Marine Weather and Tides
St. Augustine South, FL

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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 6:34AMSunset 8:27PM Wednesday July 17, 2019 12:22 PM EDT (16:22 UTC) Moonrise 8:16PMMoonset 6:07AM Illumination 100% Phase: Full Moon; Moon at 15 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:201907172100;;780909 Fzus52 Kjax 171254 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 854 Am Edt Wed Jul 17 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. Amz450-452-454-172100- 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- 854 Am Edt Wed Jul 17 2019
Rest of today..South southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Dominant period 9 seconds becoming 4 seconds in the afternoon. Inland waters a light chop. A slight chance of showers and Thunderstorms this afternoon.
Tonight..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop.
Thursday..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Thursday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Friday..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Friday night..South southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Saturday..South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Saturday night..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Sunday..South winds 10 to 15 knots. Seas 2 to 3 feet. Showers likely and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 854 Am Edt Wed Jul 17 2019
Synopsis.. The region will be between high pressure to the east and southeast, and a low pressure trough to the northwest into early next week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 16, 2019 at 1200 utc... 63 nautical miles east of flagler beach. 70 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 97 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 South CDP, FL
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location: 29.87, -81.31     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 171347
afdjax
area forecast discussion
national weather service jacksonville fl
947 am edt Wed jul 17 2019

Very hot and humid with heat indices of 104-108f this afternoon...

Scattered to numerous storms expected this afternoon evening...

Update
High pressure ridge has weakened slightly and shifted westward
over the fl panhandle with axis still across SE ga NE fl. Overall
subsidence has lead to mostly sunny skies this morning with full
insolation still expected to push highs into the mid upper 90s
inland and lower 90s at the coast. This combined with humidity and
dew points in the lower middle 70s will have peak heat indices in
the 104-108f range by early this afternoon area-wide. Morning jax
sounding still showing deep moisture with precipitable water
amounts (pwats) of 2.1 inches, and hi-res models are fairly
aggressive with storm chances this afternoon along the east coast
sea breeze as it develop along the coast then northeast flow aloft
around the high pressure will slowly push storms inland where
multiple storm mergers outflows come together for scattered to
numerous coverage area-wide, starting with 30-50% along the coast
increasing to 50-70% coverage over inland areas. Isolated strong
to severe storms expected with local wet microburst potential of
40-60mph winds along with storm motion towards the southwest at 10
mph or less still providing for locally heavy rainfall threat as
well. Convection will come together in large complex over inland
northeast florida this evening with numerous coverage and
widespread convective cloudiness, then slowly fade weaken after
sunset and still expected to be ending by midnight. Fair skies and
continued muggy humid overnight with lows in the 70s, some patchy
fog low clouds possible in areas that receive heavy rainfall
today.

Aviation
With scattered to numerous storms expected inland today tempo ifr
vsbys and MVFR CIGS have been included at gnv vqq jax crg while
vcts will be needed at ssi sgj. Gusty winds to at least 25 knots
will be possible as well. Convection should end at TAF sites by
21z along the coast and 00z-02z over inland TAF sites withVFR
conds expected through the overnight hours.

Marine
Southerly flow will continue with ridge axis across the waters.

Speeds generally in the 10-15 knot range with seas 1-3 ft. Local
sea breeze along the coast and a few storms will develop right at
the coast briefly this afternoon before pushing inland. Sea
surface temps still have cooled into the upper 70s at local
beaches due to some upwelling, with st augustine pier (sauf1) down
to 76 degree water temp this morning.

Preliminary point temps pops
Amg 98 74 98 75 20 0 40 40
ssi 92 78 91 78 50 10 30 30
jax 96 74 95 76 70 20 50 30
sgj 92 74 92 75 50 10 30 20
gnv 95 73 93 74 70 30 30 30
ocf 94 72 94 74 70 20 40 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Hess bricker


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 3 mi22 min ESE 7 G 7 81°F 78°F1020.7 hPa (+0.4)81°F
RCYF1 14 mi52 min 90°F
41117 15 mi22 min 80°F1 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi97 min NNW 1.9 89°F 1022 hPa89°F
LTJF1 36 mi52 min 89°F 78°F
BLIF1 38 mi52 min WSW 5.1 G 6 88°F 1021.4 hPa79°F
DMSF1 38 mi52 min 85°F
NFDF1 40 mi52 min WNW 1.9 G 4.1 88°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, FL7 mi26 minN 010.00 miFair90°F77°F66%1020.7 hPa

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Last 24hr33E9SE12S64SE9SE7S7S7S5SW3SW3SW3SW3SW3SW3SW3CalmSW4--W5W6Calm
1 day agoNE6NE8E8E7E4SE5SE5SE6SW4SW4SW3SW5W5W5SW3SW3CalmSW3SW4SW6W5W6W66
2 days ago6CalmSE7NW14S4SE7SE6SE4CalmCalmSW3SW3SW4SW4SW5SW5W4W4W4W5W865NW6

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (12,3,4,5)
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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.