Sunday, March29, 2020
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Marine Weather and Tides
Bayou Gauche, LA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:51AMSunset 7:18PM Sunday March 29, 2020 1:32 PM CDT (18:32 UTC) Moonrise 9:08AMMoonset 11:11PM Illumination 31% 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 1007 Am Cdt Sun Mar 29 2020
Rest of today..Northeast winds 10 to 15 knots. Waves 1 foot or less. Dominant period 4 seconds.
Tonight..Northeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers early in the afternoon.
Monday night..South winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms in the late evening.
Tuesday..West winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers in the morning.
Tuesday night..North winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Wednesday..Northeast winds 10 to 15 knots becoming north near 5 knots in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Waves subsiding to less than 1 foot in the afternoon. Dominant period 4 seconds in the afternoon.
Wednesday night..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Thursday..East winds 5 to 10 knots. Waves 1 foot or less.
Thursday night..Southeast winds 5 to 10 knots. Waves 1 foot or less.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1007 Am Cdt Sun Mar 29 2020
Synopsis..A weak front will stall along the coast and dissipate today. A low pressure system will then begin to develop over the plains tonight and drive a cold front through the waters late Monday night and Tuesday. High pressure will settle over the waters behind this front for Wednesday and Thursday.


7 Day Forecast for Marine Location Near Bayou Gauche, LA
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location: 29.78, -90.42     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 291740 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 1240 PM CDT Sun Mar 29 2020

UPDATE.

Updated for 18z aviation discussion.

AVIATION.

VFR conditions are expected to prevail through Monday. The exception will be a few brief periods of MVFR CIGS just below 3000 feet at a couple TAF airports (mainly closer to coast) from time to time this afternoon. 22/TD

PREV DISCUSSION. /issued 957 AM CDT Sun Mar 29 2020/

UPDATE . Strong dry air advection behind the front has pushed dewpoints and relative humidity values lower than previously anticipated. Dewpoints are now in the lower to middle 50s across a large portion of the forecast area. Only extreme coastal Louisiana continues to see higher dewpoints in the lower 70s as they are still on the warm side of the front. The front has started to slow in forward progression based on satellite trends, and expect to see it stall along or just off the Louisiana coast in the next few hours. Have also updated the weather forecast to remove rain chances for the remainder of today due to the drier airmass that is in place. Temperatures are on track, so no adjustments to expected afternoon highs in the lower 80s were made.

PRELIMINARY POINT TEMPS/POPS. MCB 80 62 79 67 / 0 0 40 90 BTR 80 63 81 69 / 10 0 30 80 ASD 82 64 82 69 / 10 0 10 60 MSY 81 69 82 72 / 10 0 10 50 GPT 81 65 79 70 / 10 0 10 60 PQL 84 63 83 68 / 10 0 10 60

LIX WATCHES/WARNINGS/ADVISORIES. LA . None. GM . None. MS . None. GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BYGL1 - 8762482 - Bayou Gauche, LA 1 mi63 min NE 1.9 G 8 80°F 78°F1020.5 hPa
CARL1 18 mi63 min 60°F
FREL1 23 mi63 min NNE 8.9 G 9.9 76°F 1019.6 hPa
NWCL1 - 8761927 - New Canal, LA 24 mi63 min NNE 8.9 G 11 76°F 75°F1019.7 hPa
SHBL1 - 8761305 - Shell Beach, LA 40 mi63 min 75°F 80°F1020.6 hPa
GISL1 - 8761724 - Grand Isle, LA 43 mi63 min SSW 6 G 8 79°F
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 44 mi63 min NE 9.9 G 13 76°F 65°F1020.2 hPa
KXPY 47 mi38 min E 6 82°F 70°F

Wind History for West Bank 1, Bayou Gauche, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans International Airport, LA16 mi40 minNNE 10 G 1710.00 miMostly Cloudy82°F53°F37%1020.5 hPa
Houma-Terrebonne Airport, LA19 mi1.8 hrsNNE 107.00 miMostly Cloudy81°F55°F42%1020.3 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA21 mi98 minN 810.00 miFair82°F57°F44%1020.1 hPa

Link to 5 minute data for KMSY

Wind History from MSY (wind in knots)
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S14S12S11S12S9S9SW7S7S5S6SW7SW7SW4SW4N6N7N5N8N9NE8
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Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Paris Road Bridge
Click for Map
Sun -- 05:40 AM CDT     -0.06 feet Low Tide
Sun -- 06:52 AM CDT     Sunrise
Sun -- 10:05 AM CDT     Moonrise
Sun -- 06:34 PM CDT     0.94 feet High Tide
Sun -- 07:17 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.20.10-0-0.1-0.1-000.10.20.30.40.50.60.70.80.90.90.90.90.80.80.6

Tide / Current Tables for Manilla, Mississippi River Delta, Louisiana
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Manilla
Click for Map
Sun -- 02:55 AM CDT     -0.06 feet Low Tide
Sun -- 06:52 AM CDT     Sunrise
Sun -- 10:06 AM CDT     Moonrise
Sun -- 03:13 PM CDT     0.85 feet High Tide
Sun -- 07:16 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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wmap_A
GEOS 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 New Orleans/Baton Rouge, LA (14,3,4,5)
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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 numerous 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.