Tuesday, September26, 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 6:52AMSunset 6:54PM Tuesday September 26, 2017 9:24 AM CDT (14:24 UTC) Moonrise 11:39AMMoonset 10:30PM Illumination 34% Phase: Waxing Crescent; Moon at 6 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- 338 Am Cdt Tue Sep 26 2017
Today..East winds up to 5 knots becoming southeast around 5 knots in the afternoon. Bay waters smooth. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Tonight..Southwest winds up to 5 knots becoming east after midnight. Bay waters smooth. Slight chance of showers in the evening.
Wednesday..Northeast winds up to 5 knots becoming southeast around 5 knots in the afternoon. Bay waters smooth. Slight chance of showers and Thunderstorms.
Wednesday night..Southwest winds up to 5 knots becoming northwest after midnight. Bay waters smooth.
Thursday..Northeast winds 5 to 10 knots. Bay waters a light chop.
Thursday night..Northeast winds 5 to 10 knots. Bay waters a light chop.
Friday..Northeast winds around 10 knots. Bay waters a light chop.
Friday night..Northeast winds 10 to 15 knots. Bay waters choppy.
Saturday..Northeast winds 10 to 15 knots. Bay waters choppy.
Saturday night..Northeast winds around 10 knots. Bay waters a light chop.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 338 Am Cdt Tue Sep 26 2017
Synopsis.. Weak high pressure will be in place over the coastal waters through mid week. This will result in light easterly to southeasterly winds each day and mainly low seas. A weak cold front will move through the coastal waters on Thursday, with increasing offshore flow and building seas through the end of the week.

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 261145
afdlch
area forecast discussion
national weather service lake charles la
645 am cdt Tue sep 26 2017

Discussion
26 12z TAF issuance.

Aviation
Patchy fog has been developing acrs the area this morning although
vsbys remain AOA 7sm at all terminals but lft. Kept tempo groups
for ocnl MVFR vsby restrictions through 13-14z withVFR conditions
to prevail thereafter. Winds will remain light and east to
northeast or vrbl with just a few isolated aftn showers possible
mainly near the acadiana terminals. Although patchy fog is
possible again late tonight, confidence too low to include in tafs
attm.

24

Prev discussion issued 311 am cdt Tue sep 26 2017
synopsis...

a cold front is located this early morning from lake michigan down
to northwest texas. Air mass ahead of this system and across the
forecast area is unseasonably warm and humid. Upper air analysis
and water vapor imagery shows an upper level circulation that was
over the gulf south as moved eastward to the northeast gulf and
florida panhandle region. Meanwhile, an elongated upper level
ridge is noted from the western gulf of mexico up into the
forecast area. This is keeping a plume of tropical east pacific
moisture streaming up from northern old mexico into central texas
and away from the forecast area. With a little bit more of ridging
aloft, nocturnal shower activity has been less than the past
couple of nights, with just a few small showers right off the
immediate lower acadiana coast.

Rua
discussion...

the hot and humid days with muggy nights will persist through
Wednesday as no real change is noted in the immediate sensible
weather for the forecast area. This will also mean a few showers
or storms will be possible during the afternoon into early evening
hours from daytime heating. The best chance and coverage will be
over lower acadiana as that area will be located further away from
the elongated ridge aloft.

A weak cold front will struggle to move down into the forecast
area on Thursday... With not much more than a wind shift from
east-southeast to north-northeast. With weak surface convergence
and ridging aloft, just a few showers can be expected with the
frontal passage.

The center of the surface high behind the front will pivot from
the northern plains to the eastern great lakes on Friday into
Saturday... With ridge building down into the forecast area and the
northeast flow bringing in a bit more of a drier continental air
mass to provide some slightly cooler night and less humid days
from later Friday into early Sunday.

This high pressure system will move further east on Sunday to the
new england states and then further off the coast. This will allow
a gradual return flow off the gulf to develop with an increase in
humidity and slight chance of showers for Sunday afternoon into
Monday.

Rua
marine...

rather weak pressure pattern will keep mainly light winds and low
seas through Wednesday. A weak cold front will move into the
coastal waters on Thursday, with winds becoming offshore, but
staying rather light. A somewhat cooler and drier air mass will
arrive over the coastal waters on Friday into Saturday, as high
pressure ridges down from the great lakes. The result will be an
increase in offshore flow with building seas. Small craft exercise
caution or small craft advisory conditions will be possible for
portions of the coastal waters on Friday through Saturday.

Rua

Preliminary point temps pops
Aex 91 70 91 71 20 10 20 20
lch 91 73 91 73 20 10 20 20
lft 90 73 90 73 30 20 20 10
bpt 90 71 90 73 20 10 20 20

Lch watches warnings advisories
La... None.

Tx... None.

Gm... None.

Aviation... 24


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 0 mi55 min NE 4.1 G 4.1 78°F 81°F1013.1 hPa
AMRL1 - 8764227 - Amerada Pass, LA 16 mi55 min ENE 2.9 G 4.1 77°F 81°F1012.8 hPa
EINL1 22 mi55 min ESE 8 G 8.9 79°F 83°F1012.4 hPa76°F
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi55 min Calm G 2.9 77°F 83°F1013.4 hPa
MRSL1 - Marsh Island, LA / CSI03 46 mi145 min 8 G 9.9 80°F

Wind History for Tesoro Marine Terminal, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salt Point, LA17 mi92 minN 0 mi75°F73°F96%1012.2 hPa

Wind History from PTN (wind in knots)
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Last 24hr--Calm--NE4NE4--NE6NE4NE6NE8NE10E10
G14
E6E5NE15S5CalmNW3E4E4E4E5SE3E4
1 day ago----------------------------------------------Calm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmNE6NE6E10E7NE7NE63------------------

Tide / Current Tables for Tesoro Marine Term., Atchafalaya River, Louisiana
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Tesoro Marine Term.
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Tue -- 12:54 AM CDT     0.49 feet High Tide
Tue -- 03:26 AM CDT     0.47 feet Low Tide
Tue -- 06:01 AM CDT     0.49 feet High Tide
Tue -- 06:55 AM CDT     Sunrise
Tue -- 12:38 PM CDT     Moonrise
Tue -- 04:25 PM CDT     0.12 feet Low Tide
Tue -- 06:56 PM CDT     Sunset
Tue -- 11:30 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.50.50.50.50.50.50.50.40.30.30.20.20.20.10.10.10.10.20.20.30.30.4

Tide / Current Tables for Shell Island, Atchafalaya Bay, Louisiana
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Shell Island
Click for Map
Tue -- 06:55 AM CDT     Sunrise
Tue -- 12:38 PM CDT     Moonrise
Tue -- 02:38 PM CDT     0.57 feet Low Tide
Tue -- 06:56 PM CDT     Sunset
Tue -- 11:30 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.71.71.61.61.61.61.61.61.51.31.10.90.70.60.60.60.70.811.21.41.51.7

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 (10,2,3,4)
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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.