Monday, July24, 2017 L-36.com


Marine Weather and Tides
Bayou Vista, LA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:17AMSunset 8:01PM Monday July 24, 2017 3:55 PM CDT (20:55 UTC) Moonrise 6:37AMMoonset 8:13PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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GMZ435 Vermilion Bay- 322 Pm Cdt Mon Jul 24 2017
Tonight..Southwest winds 5 to 10 knots. Bay waters a light chop.
Tuesday..Southwest winds around 5 knots. Bay waters smooth.
Tuesday night..West winds 5 to 10 knots. Bay waters a light chop.
Wednesday..Southwest winds up to 5 knots. Bay waters smooth.
Wednesday night..West winds 5 to 10 knots. Bay waters a light chop.
Thursday..West winds around 5 knots. Bay waters smooth.
Thursday night..West winds 5 to 10 knots. Bay waters a light chop.
Friday..West winds 5 to 10 knots. Bay waters a light chop.
Friday night..Southwest winds 5 to 10 knots. Bay waters a light chop.
Saturday..West winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Saturday night..West winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 322 Pm Cdt Mon Jul 24 2017
Synopsis.. A weak high pressure system at the surface across the northern gulf of mexico will result in mainly light onshore winds for the forecast period. An upper level high will also build across the region decreasing chances for showers and Thunderstorms.

7 Day Forecast for Marine Location Near Bayou Vista, LA
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location: 29.67, -91.24     debug


Area Discussion for - Lake Charles, LA
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Fxus64 klch 242051
afdlch
area forecast discussion
national weather service lake charles la
351 pm cdt Mon jul 24 2017

Synopsis
A mid level weakness and shear axis is noted from mississippi
across louisiana into east texas. Along the weakness, a meso vort
max is seen rotating east of the sabine river over central
louisiana just north of the forecast area. This helped enhance
the earlier convection that brought some heavy rainfall this
morning to vernon parish, with the kpoe ASOS recording around 2.5
inches of rainfall, with radar estimates showing 3 to 4.5 inches
of rainfall west of the ASOS location across western and southwest
vernon parish. Most of the activity has since diminished with just
isolated showers remaining.

Rua

Discussion
The mid level weakness and shear axis will gradually dissipate
over the next day, as mid level ridging and drier air begins to
move in. Will keep small rain chances in for tonight and early
Tuesday to account for nocturnal development near where the meso
vort MAX center will be located, and across the northeast
portions of the forecast area.

Otherwise, mid level ridging bringing in drier air in the mid
levels will be the main weather player for the remainder of the
week. Precipitable water values will drop to mainly below 1.5
inches with mean rh from the the surface to 50h less than 50
percent. This will greatly reduce rain chances to less than 20
percent, and will not mention any showers or storms for the
Wednesday through Friday period. With less convection, air
temperatures will be a couple of degrees warmer, and with a south
wind at the surface, moisture values in the low levels will stay
up bringing muggy conditions. Expect afternoon MAX heat index
readings for Thursday and Friday to be projected at 105f to 107f
degrees and just below heat advisory criteria.

Over the weekend, an upper level ridge will strengthen and be
centered over the southwest us. In return, an upper level trough
will dig down the east coast. This will result in a deeper
northerly flow across the forecast area, and what the progs are
showing, a backdoor surface front to move through the forecast
area. Still some differences between the GFS (faster with frontal
passage on Saturday) and the ECMWF (slower with frontal passage on
Sunday) to the timing of this boundary. Still some lower than
normal confidence for the weekend forecast as it is unusual to
have a frontal boundary make it through the forecast area in late
july. At this time will lean toward the slower solution.

Therefore, will see an increase in showers and thunderstorms over
the weekend, ahead of the boundary. If frontal passage verifies,
then some drier air for early next week, with a little less
daytime humidity and lower night time low temperatures.

Rua

Marine
A weak surface high is located over the north central gulf of
mexico this afternoon. This surface high will continue to ridge
across the northern gulf into the coastal waters that will allow a
general weak pressure pattern with light onshore winds and
relatively low seas. In the meantime, an upper level ridge will
build over the coastal waters helping to reduce chances for
showers or thunderstorms.

Rua

Preliminary point temps pops
Aex 75 92 73 95 20 20 10 10
lch 77 92 75 93 10 10 10 10
lft 75 92 73 93 10 10 10 10
bpt 77 92 76 94 10 10 10 10

Lch watches warnings advisories
La... None.

Tx... None.

Gm... None.

Public... 07


Weather Reporting Stations
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Wind History for Tesoro Marine Terminal, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patterson Memorial, LA6 mi59 minWNW 710.00 miPartly Cloudy78°F72°F82%1017.7 hPa
Salt Point, LA17 mi62 minWNW 4 mi88°F75°F68%1016.5 hPa

Wind History from PTN (wind in knots)
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Last 24hrW5SW5W3CalmS3SW4S5CalmCalmS4CalmCalmSW5S8SW5SW7SW8SW10SW14SW15
G18
W12W113W7
1 day agoCalmSW3S5SW6CalmS3CalmCalmCalmSW3CalmCalmS5CalmCalm4NW8CalmSW4SW5SW7SW6SW7SW9
2 days ago6CalmCalmE3N3E4--CalmN4CalmE3S8SW5CalmCalmCalmCalmNW4CalmCalmSE6S12
G17
SW6S9

Tide / Current Tables for Tesoro Marine Term., Atchafalaya River, Louisiana
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Tesoro Marine Term.
Click for Map
Mon -- 01:37 AM CDT     0.04 feet Low Tide
Mon -- 06:20 AM CDT     Sunrise
Mon -- 07:37 AM CDT     Moonrise
Mon -- 08:05 AM CDT     0.54 feet High Tide
Mon -- 01:56 PM CDT     0.37 feet Low Tide
Mon -- 06:27 PM CDT     0.45 feet High Tide
Mon -- 08:02 PM CDT     Sunset
Mon -- 09:12 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1000.10.20.30.40.50.50.50.50.40.40.40.40.40.40.40.50.40.40.30.30.2

Tide / Current Tables for Shell Island, Atchafalaya Bay, Louisiana
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Shell Island
Click for Map
Mon -- 06:20 AM CDT     Sunrise
Mon -- 07:38 AM CDT     Moonrise
Mon -- 07:57 AM CDT     1.55 feet High Tide
Mon -- 11:24 AM CDT     1.16 feet Low Tide
Mon -- 05:04 PM CDT     1.35 feet High Tide
Mon -- 08:02 PM CDT     Sunset
Mon -- 09:12 PM CDT     Moonset
Mon -- 11:14 PM CDT     -0.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.20.10.40.81.11.41.51.51.41.31.21.21.21.21.31.31.41.310.60.1-0.3-0.4

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Lake Charles, LA (16,3,4,5)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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weather_mapweather_map weather_map

Gulf Stream Current


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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.