Friday, December6, 2019
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Marine Weather and Tides
Boothville, LA

Version 3.4
NOTICE
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.
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 6:40AMSunset 5:01PM Friday December 6, 2019 7:00 PM CST (01:00 UTC) Moonrise 2:48PMMoonset 2:20AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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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GMZ538 Expires:201912071030;;956874 Fzus54 Klix 062132 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 332 Pm Cst Fri Dec 6 2019 Pascagoula To Atchafalaya River Out To 60 Mile 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 Ten Percent Of The Waves. Gmz536-538-071030- Chandeleur Sound-breton Sound- 332 Pm Cst Fri Dec 6 2019
Tonight..Southwest winds 5 to 10 knots becoming north 10 to 15 knots after midnight. Waves 1 to 2 feet. Dominant period 4 seconds. Areas of fog in the evening. Widespread dense fog after midnight. Slight chance of showers in the late evening.
Saturday..North winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Areas of fog early in the morning, then patchy fog late in the morning.
Saturday night..Northeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers in the evening.
Sunday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers in the morning.
Sunday night..South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers in the afternoon.
Monday night..Southwest winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers.
Tuesday..Southwest winds 10 to 15 knots becoming west late in the morning, then becoming north in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers in the morning, then showers likely in the afternoon.
Tuesday night..North winds 20 to 25 knots. Waves 2 to 4 feet building to 3 to 5 feet with occasional waves to 6 feet. Dominant period 4 seconds. Chance of showers.
Wednesday..Northeast winds 20 to 25 knots. Waves 3 to 6 feet. Dominant period 4 seconds. Chance of showers.
Wednesday night..Northeast winds 20 to 25 knots. Waves 3 to 6 feet. Dominant period 4 seconds. Slight chance of showers.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 332 Pm Cst Fri Dec 6 2019
Synopsis..A cold front will move across the north gulf this evening. High pressure will then settle over the north central and northwest gulf coast over the weekend. Another cold front will move through the area Tuesday.


7 Day Forecast for Marine Location Near Boothville, LA
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location: 29.49, -89.17     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 062204 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 404 PM CST Fri Dec 6 2019

SHORT TERM. Fast moving impulse has moved east of the area with some minor cool air advection taking place currently in the column, though surface temperatures are having no problems warming into the upper 70s to lower 80s this afternoon. Temperatures and dewpoints will likely hover close to near shore water temperatures to onset fog formation this evening and lingering through mid-morning for interior areas, latter morning to early afternoon along the immediate coast. At some point, sun comes out to warm temperatures into the mid to upper 60s Saturday. Saturday night temperatures should be a couple of degrees cooler than previous night, then warming trend Sunday as winds veer and advection abates after drainage flow ends.

LONG TERM. Models are in consensus on showing a cold front move off the coast Tuesday with some shallow cold air advection initially. Then upper level trough amplification takes place as southern branch short wave induces what should be a decent gulf low genesis in the latter part of the week. Some ensemble members are alluding to dynamic cooling on a weak trowal for potentially some winter weather outcome, but the deterministic models are warmer and less dynamic, leading a more warm conveyor influenced system that possibly takes on negative tilt orientation while moving through the forecast area Friday. This will likely be an inclement stretch to contend with, but will forego any mention of winter weather at this time until some more certainty can be attained within the model guidance over the weekend.

AVIATION. Ceilings will likely bounce in and out of MVFR-VFR for the first few hours before lowering to IFR with marine layer advection generally after 03Z. Expecting some sea fog fomation that will likely impact the terminals influenced by marine proximity, lowering to VLIFR conditions at KGPT and KPQL, IFR other terminals OVC005-008. Conditions improve to MVFR to lower end VFR ceilings heading into the afternoon Saturday.

MARINE. Main concern will be likely sea fog formation by early this evening as some cooler air lowers temperatures to close shallow water temperatures over the sounds and possibly the tidal lakes. This fog could linger well into Sat morning before improving. Relatively light offshore flow Saturday veers to easterly flow Sunday at very lax levels before beoming more onshore Monday. Cold front pushes off the coast Tuesday with strong cold air advection to bring Small Craft Advisory winds and seas by Tuesday night through Wednesday night.

DECISION SUPPORT. DSS code: Blue. Deployed: None. Activation: None. Activities: Forecast support to City of New Orleans

PRELIMINARY POINT TEMPS/POPS. MCB 52 63 50 68 / 10 10 0 10 BTR 54 65 50 70 / 0 0 0 10 ASD 52 66 49 71 / 20 0 10 10 MSY 57 65 54 69 / 30 0 10 10 GPT 53 63 52 68 / 30 0 10 10 PQL 53 67 51 72 / 30 10 10 20

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

24/RR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KMIS 22 mi25 min SSW 12 70°F 68°F
PILL1 22 mi42 min SSW 5.1 G 5.1 63°F 51°F1018.8 hPa
KDLP 32 mi25 min SW 7 73°F 68°F
SHBL1 - 8761305 - Shell Beach, LA 37 mi54 min SE 6 G 6 67°F 64°F1018.4 hPa
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 41 mi48 min W 6 G 7
KVKY 42 mi25 min SSW 9.9 72°F 68°F
BURL1 - Southwest Pass, LA 43 mi60 min 7 G 7
GISL1 - 8761724 - Grand Isle, LA 45 mi42 min SW 7 G 8 67°F

Wind History for Shell Beach, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Main Pass 140B (Apache Corp), LA22 mi65 minSSW 1110.00 miFair70°F66°F88%1019 hPa

Link to 5 minute data for KBVE

Wind History from BVE (wind in knots)
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1 day agoS12SW12SW12S11S10S9S12S10S10S8S9S9S10S10S9S9SW10SW13N11
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2 days agoNE7NE6NE5E4NE5E3CalmCalmCalmSE3CalmCalmN3CalmSE3SE4S7S6S9S8S10S11S11S12

Tide / Current Tables for Breton Islands, Louisiana
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Breton Islands
Click for Map
Fri -- 01:20 AM CST     Moonset
Fri -- 06:37 AM CST     Sunrise
Fri -- 12:22 PM CST     0.36 feet Low Tide
Fri -- 01:48 PM CST     Moonrise
Fri -- 04:57 PM CST     Sunset
Fri -- 08:36 PM CST     0.77 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.60.60.60.60.50.50.50.40.40.40.40.40.40.40.50.60.70.70.80.80.70.7

Tide / Current Tables for Jack Bay, Louisiana
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Jack Bay
Click for Map
Fri -- 01:21 AM CST     Moonset
Fri -- 06:37 AM CST     Sunrise
Fri -- 01:07 PM CST     0.32 feet Low Tide
Fri -- 01:48 PM CST     Moonrise
Fri -- 04:58 PM CST     Sunset
Fri -- 09:09 PM CST     0.66 feet High Tide
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 (20,4,5,8)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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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.