Monday, January22, 2018 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 6:55AMSunset 5:34PM Monday January 22, 2018 6:28 AM CST (12:28 UTC) Moonrise 10:27AMMoonset 10:46PM Illumination 32% 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- 334 Am Cst Mon Jan 22 2018
.dense fog advisory in effect until 9 am cst this morning...
Today..Southwest winds 5 to 10 knots becoming northwest in the afternoon. Bay waters a light chop. Areas of dense fog in the morning. Rain showers likely and slight chance of Thunderstorms in the morning, then slight chance of rain showers in the afternoon.
Tonight..Northwest winds 5 to 10 knots. Bay waters a light chop.
Tuesday..North winds 5 to 10 knots. Bay waters a light chop.
Tuesday night..North winds 5 to 10 knots. Bay waters a light chop.
Wednesday..Northeast winds 5 to 10 knots. Bay waters a light chop.
Wednesday night..Northeast winds 5 to 10 knots. Bay waters a light chop.
Thursday..East winds 5 to 10 knots. Bay waters a light chop.
Thursday night..East winds 5 to 10 knots. Bay waters a light chop.
Friday..Southeast winds 10 to 15 knots. Bay waters choppy. Chance of rain showers.
Friday night..Southeast winds 10 to 15 knots. Bay waters choppy. Rain showers likely and isolated Thunderstorms.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 334 Am Cst Mon Jan 22 2018
Synopsis.. A cold front will move east across the coastal waters this morning, exiting the eastern waters by early afternoon. Ahead of the front, areas of dense sea fog, along with scattered showers and a few Thunderstorms, can be expected. Areas of sea fog will come to an end from west to east with the passage of the front. Moderate offshore flow will develop in the wake of the front and continue through Wednesday night. High pressure will shift east of the region, with moderate east to southeast winds developing by Thursday and Friday.

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 221148
afdlch
area forecast discussion
national weather service lake charles la
548 am cst Mon jan 22 2018

Discussion
For the 01 22 18 1200 utc TAF package.

Aviation
Pre-frontal convection continues to push east through central and
southwest la, with the cdfnt quickly catching up from the west.

Forecast package was constructed using a blend of radar satellite
trends and short term hi-res guidance, basically ending convection
kaex-klch westward and timing the onset at the acadiana terminals.

An hour or so of ifr MVFR CIGS will follow the end of convection,
with a subsequent lifting cig clearing sky and increase in nw
winds with the passage of the cdfnt.VFR is expected to prevail
all sites by this afternoon and continue through the remainder of
the forecast period.

13

Prev discussion issued 440 am cst Mon jan 22 2018
synopsis...

an extensive band of showers and thunderstorms, some of which have
been strong early this morning, is progressing east acrs the area.

This band is occurring along a pre-frontal trough that extends
from central la southwest to near galveston. The actual front
just trails the main band of convection, and is located from near
el dorado, ar to toledo bend reservoir to galveston bay. Cooler
temperatures follow behind the front along with a sharp drop in
dewpoints.

Convection was being aided by good divergence aloft southeast of a
large upper level low pres system over ks. Latest ua analysis and
wv imagery show drier air over tx. A strong 130 kt jet streak
transiting the base of the trough is helping accelerate the system
eastward early this morning.

24
discussion...

the front will progress rapidly eastward this morning, and
showers tstms should exit the eastern zones early this aftn. Much
drier air will spread into the region today. While temperatures
may cool briefly in the wake of the front, they will rebound into
the middle 60s to lower 70s as skies clear through the day.

Dry and more seasonable conditions are expected through Thursday.

Skies will be mostly sunny with highs around 60 each day, while
nighttime lows will run slightly below normal from the middle 30s
to around 40.

A progressive pattern will be in place through the week. Sfc high
pres will slide east by late Thursday into Friday, causing
temperatures to moderate and low level moisture to increase by
Friday into Saturday. Another shortwave trough will cross the
rockies late in the week, with sfc low pres developing over the
high plains. Strengthening southerly flow and increasing lift in
advance of this system will bring a chc of showers tstms on
Friday, with chcs increasing through Saturday as a front moves
into the area. High pres building in behind the front on Sunday
will bring drier weather, with cooler temperatures expected to
return Sunday into Monday.

24
marine...

a cold front will move east across the coastal waters this
morning, exiting the eastern waters by early afternoon. Ahead of
the front, areas of dense sea fog, along with scattered showers
and a few thunderstorms, can be expected. Areas of sea fog will
come to an end from west to east with the passage of the front.

Moderate offshore flow will develop in the wake of the front today and
continue through Wednesday night. Winds are expected to
strengthen enough tonight to warrant exercise caution flags over
the outer coastal waters east of cameron. By Thursday and Friday,
high pressure will shift east of the region, with moderate east
to southeast winds developing by Thursday and Friday.

24

Preliminary point temps pops
Aex 66 37 60 34 60 0 0 0
lch 69 42 64 39 80 0 0 0
lft 71 41 62 37 80 0 0 0
bpt 67 41 64 39 40 0 0 0

Lch watches warnings advisories
La... None.

Tx... None.

Gm... Small craft exercise caution from this evening through late
tonight for gmz472-475.

Dense fog advisory until 6 am cst early this morning for gmz430-
432-450.

Dense fog advisory until 9 am cst this morning for gmz435-452-
455.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 0 mi41 min S 8 G 13 64°F 42°F1013.7 hPa
AMRL1 - 8764227 - Amerada Pass, LA 16 mi41 min SSE 4.1 G 6 63°F 46°F1013.5 hPa
EINL1 22 mi41 min SSW 12 G 13 60°F 46°F1013.2 hPa59°F
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi41 min SSE 1.9 G 2.9 60°F 50°F1014.8 hPa
MRSL1 - Marsh Island, LA / CSI03 46 mi89 min 7 G 11 62°F

Wind History for Tesoro Marine Terminal, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patterson Memorial, LA6 mi33 minSSW 910.00 miOvercast66°F64°F96%1014.1 hPa
Salt Point, LA17 mi36 minVar 5 mi63°F63°F100%1013.1 hPa

Wind History from PTN (wind in knots)
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Last 24hrE3E4SE4SE13SE11SE11
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SE10SE8SE9SE8SE9SE10SE6SE8SE8SE12
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1 day agoNE4E4E6SE9SE11
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S7SE10SE9SE7E9SE5SE5SE7E8SE6SE8SE8E4E5E5E4E3E3
2 days agoCalmE3NE6E8SE4E9SE7S4CalmE8SE5SE5SE5E3SE6E7NE3E5E5NE4E4SE6NE6NE3

Tide / Current Tables for Tesoro Marine Term., Atchafalaya River, Louisiana
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Tesoro Marine Term.
Click for Map
Mon -- 05:10 AM CST     0.36 feet Low Tide
Mon -- 06:59 AM CST     Sunrise
Mon -- 08:09 AM CST     0.38 feet High Tide
Mon -- 10:27 AM CST     Moonrise
Mon -- 03:44 PM CST     0.18 feet Low Tide
Mon -- 05:34 PM CST     Sunset
Mon -- 10:46 PM CST     Moonset
Mon -- 10:58 PM CST     0.44 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.40.40.40.40.40.40.40.40.40.40.30.30.20.20.20.20.20.20.30.40.40.40.4

Tide / Current Tables for Shell Island, Atchafalaya Bay, Louisiana
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Shell Island
Click for Map
Mon -- 12:58 AM CST     0.47 feet Low Tide
Mon -- 06:47 AM CST     0.55 feet High Tide
Mon -- 06:58 AM CST     Sunrise
Mon -- 10:27 AM CST     Moonrise
Mon -- 12:14 PM CST     -0.10 feet Low Tide
Mon -- 05:34 PM CST     Sunset
Mon -- 09:32 PM CST     0.79 feet High Tide
Mon -- 10:47 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.50.50.50.50.50.60.50.40.20-0.1-0.1-00.10.20.40.50.60.70.80.80.6

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 (7,2,3,4)
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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.