Tuesday, August20, 2019 L-36.com


Marine Weather and Tides
Marineland, 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 8:02PM Tuesday August 20, 2019 8:39 PM EDT (00:39 UTC) Moonrise 10:10PMMoonset 10:13AM Illumination 71% 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:201908210315;;943809 Fzus52 Kjax 201913 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 313 Pm 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. Amz450-452-454-210315- 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- 313 Pm Edt Tue Aug 20 2019
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 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Friday..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.
Friday night..South winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Saturday..South southeast winds 5 to 10 knots. Seas 2 feet. Showers likely and a slight chance of Thunderstorms.
Saturday night..South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Sunday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Showers and a slight chance of Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 313 Pm 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 Marineland, FL
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location: 29.63, -81.21     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 201946
afdjax
area forecast discussion
national weather service jacksonville fl
346 pm edt Tue aug 20 2019

Thunderstorms working inland throughout the afternoon...

Near term Tonight...

satellite and radar observations show showers and thunderstorms
gradually developing along the east coast sea-breeze and working
inland within southeasterly steering flow around 5 knots. The west
coast sea-breeze is pinned against the coast so not expecting any
sort of merging to occur inland. Instead, the outflow sea-breeze
boundary will continue to initiate additional storms inland
throughout the afternoon. The atmosphere is rather unstable inland
with cooler temperatures aloft (500 mb at -7c) and temperatures
in the upper 80s and lower 90s. The biggest limitation to
achieving strong severe storms will be the lack of strong surface
convergence as there are no boundaries working eastward toward the
ongoing storms. Some of precipitation activity, primarily
stratiform rain showers after the thunderstorms, lingers into the
evening hours, especially around the gainesville area. Partly
cloudy skies tonight as cloud debris from thunderstorm anvil
slowly fades. Temperatures drop into the low to mid 70s.

Short term Wednesday and Thursday...

mid-level ridge axis stretched from the eastern gulf into the
western atlantic focuses the greatest moisture over SE georgia for
Wednesday and Thursday. Ridge of high pressure to the east
promotes weak southerly flow, allowing the sea-breezes to work
inland both days. Isolated convection is possible along the east
coast sea- breeze boundary as it works inland, but the best
coverage will be located across SE georgia where inland storms
develop and collide with mesoscale boundaries. These collisions
help updrafts to take advantage of the deeper moisture present in
these areas. Activity fades during the evening hours with partly
cloudy skies during the overnight.

Drier conditions and the ridge in place help daytime highs to
reach a couple of degrees above normal with most areas in the low
to mid 90s.

Long term Friday through Tuesday...

the long term features weak synoptic flow as a short wave trough
moves through the great lakes area well north of the region.

Toward the weekend, the frontal trough associated with the low
pressure to the north extends toward the southeast and stalls.

Models have recently trended north with these feature as the
trough to the north becomes less steep. Expect the typical
diurnally driven thunderstorms with sea-breeze boundaries pushing
inland. Best moisture arrives Sunday through Tuesday, promoting
higher chances for thunderstorms. With no significant synoptic
features to drive temperatures in either direction of average,
climatological normals are forecast (high: lower 90s, lows: low to
mid 70s).

Aviation
The east coast sea breeze was moving inland early this afternoon,
and scattered showers and storms were developing along the
boundary. Storms will move to the northwest, and will impact kgnv
and kvqq this afternoon. East southeast winds around 10 knots will
prevail for the east coast TAF sites as the sea breeze moves
inland. Light winds are expected overnight.

Marine
High pressure over area waters allowing winds to remain light and
seas between 1-3 feet this afternoon. This continues through the
week as the ridge of high pressure is forecast to maintain its
presence. A frontal features attempts to move south toward the
weekend, but stalls well north of the area.

Rip currents: low risk today and Wednesday with the sea-breeze
ushering in stronger onshore winds during the afternoon.

Preliminary point temps pops
Amg 72 90 72 92 10 30 10 30
ssi 76 88 77 89 0 10 10 20
jax 75 91 75 91 20 20 10 20
sgj 74 88 74 89 0 10 10 10
gnv 72 90 72 91 30 20 10 20
ocf 73 90 73 91 40 20 10 20

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Mcginnis kennedy


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GTXF1 - Guana Tolomato Matanzas Reserve, FL 2 mi114 min ESE 5.1 83°F 1021 hPa83°F
SAUF1 - St. Augustine, FL 16 mi39 min SE 5.1 G 6 82°F 84°F1019.6 hPa (+0.5)
41117 26 mi39 min 82°F1 ft

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ormond Beach, Ormond Beach Municipal Airport, FL23 mi1.8 hrsN 010.00 miFair82°F71°F70%1019.3 hPa
Northeast Florida Regional Airport, FL24 mi1.7 hrsE 610.00 miFair83°F77°F82%1019.4 hPa

Link to 5 minute data for KXFL

Wind History from XFL (wind in knots)
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Last 24hr--Calm--------------------CalmCalmCalmW4NW5NW5W4NW5CalmCalm43
1 day agoCalmCalm--------------------CalmCalmNW6NW6NW6NW6N5W5N5N7W5Calm
2 days agoW5----------------------CalmCalmW5W10W10W10NW10
G15
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NW10NW10NW10

Tide / Current Tables for Smith Creek, Flagler Beach, Florida
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Smith Creek
Click for Map
Tue -- 04:52 AM EDT     0.89 feet High Tide
Tue -- 06:55 AM EDT     Sunrise
Tue -- 11:12 AM EDT     0.12 feet Low Tide
Tue -- 11:12 AM EDT     Moonset
Tue -- 05:13 PM EDT     0.87 feet High Tide
Tue -- 08:00 PM EDT     Sunset
Tue -- 11:09 PM EDT     Moonrise
Tue -- 11:29 PM EDT     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.60.70.90.90.80.70.50.30.20.10.20.30.50.70.80.90.90.80.60.40.30.2

Tide / Current Tables for St. Augustine Beach, Florida (2)
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St. Augustine Beach
Click for Map
Tue -- 05:48 AM EDT     0.31 feet Low Tide
Tue -- 06:55 AM EDT     Sunrise
Tue -- 11:13 AM EDT     Moonset
Tue -- 11:57 AM EDT     4.42 feet High Tide
Tue -- 06:05 PM EDT     0.64 feet Low Tide
Tue -- 08:01 PM EDT     Sunset
Tue -- 11:09 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.543.22.11.10.50.30.81.72.63.54.24.44.23.52.51.60.90.60.91.62.53.34

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (20,4,5,8)
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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.