Friday, September25, 2020
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Marine Weather and Tides
Buras, LA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:49AMSunset 6:54PM Friday September 25, 2020 7:03 AM CDT (12:03 UTC) Moonrise 3:25PMMoonset 12:56AM Illumination 58% Phase: First Quarter Moon; Moon at 8 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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GMZ552 Expires:202009252145;;333535 Fzus54 Klix 250917 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 417 Am Cdt Fri Sep 25 2020 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. Gmz550-552-252145- Coastal Waters From Port Fourchon La To Lower Atchafalaya River La Out 20 Nm- Coastal Waters From The Southwest Pass Of The Mississippi River To Port Fourchon Louisiana Out 20 Mile- 417 Am Cdt Fri Sep 25 2020
Today..Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 6 seconds.
Tonight..East winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds.
Saturday..Southeast winds 5 to 10 knots. Seas 1 foot or less. Dominant period 5 seconds.
Saturday night..South winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Slight chance of showers after midnight.
Sunday..South winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Chance of showers through the day. Slight chance of Thunderstorms early in the afternoon.
Sunday night..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers through the night.
Monday..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday night..North winds 20 to 25 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Waves or seas building to 3 to 6 feet with occasional seas to 6 feet. Dominant period 5 seconds after midnight. Chance of showers and Thunderstorms.
Tuesday..North winds 20 to 25 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the morning.
Tuesday night..North winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 417 Am Cdt Fri Sep 25 2020
Synopsis..A cold front is forecast to move through the coastal waters Monday night into Tuesday morning. High pressure settles over the northern gulf for much of the remainder of the week.


7 Day Forecast for Marine Location Near Buras, LA
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location: 29.29, -89.66     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 250917 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 417 AM CDT Fri Sep 25 2020

SHORT TERM. Not much difference in fcast thinking as cloud cover still hanging tough across the area this morning. Cloudy conditions will be left into most of the morning but breaking out by later morning into the afternoon. It will be hard to get rid of the cloud decks though as a surge of moisture will move back into the area by Saturday keeping some of this cloud cover around and introducing some showers over the area. Precip numbers are low so expectations for anything more than wet pavement is not anticipated. Tides will also continue to slowly lower and should be enough later today that there should be no issues with tide levels. Not a lot going on for Sunday as partly cloudy and dry conditions and lower tides should rule.

LONG TERM (Monday through Thursday) .

First strong autumn cold front is still on schedule to move through the central Gulf coast region during the late Monday to Monday night period, however the models have some timing differences that will have some impacts on the timing of precipitation and the amount, if any, of severe thunderstorm potential ahead of the frontal boundary. The National Blend of Models guidance has trended towards higher rain probabilities on Monday with a chance of thunderstorms going into Monday night. Will have to monitor the severe potential as we gain better confidence in the timing of the front and the amount of instability and shear.

Otherwise, pleasantly cooler and drier air will surge into the forecast area behind the front Monday night through Thursday. Lows are expected to drop into the low to mid 50s in the cooler northern areas with highs in the 70s Tuesday through Thursday. 22/TD

AVIATION. VFR to MVFR conditions to remain into mid morning due to cigs. But these will begin to break out by late morning into the afternoon. Vis may be reduced as well at several sites but this will also improve as cigs improve. Cigs and vis restrictions back in for tonight with a few showers possibly showing up Saturday mainly for south shore terminals and chances are not high enough to even mention at the moment.

MARINE. A northerly to somewhat variable direction will be maintained today but either way, winds will be light. East to SE flow till begin Saturday through Monday but will also remain light until Sunday with only winds of 10-15kt expected. Winds will shift with the passage of a cold front Tuesday morning to northerly. Most likely this will prompt advisories for winds and seas Tue through early Wed. Winds and seas should rapily subside Wed into Thu.

PRELIMINARY POINT TEMPS/POPS. MCB 79 65 83 69 / 0 0 10 0 BTR 80 66 85 68 / 0 0 10 0 ASD 82 65 84 69 / 10 0 20 0 MSY 81 70 83 72 / 10 0 10 10 GPT 81 67 82 71 / 0 0 10 10 PQL 83 66 85 70 / 0 0 10 10

LIX WATCHES/WARNINGS/ADVISORIES. LA . Coastal Flood Advisory until noon CDT today for LAZ040-049-050- 058-060>062-072.

GM . None. MS . Coastal Flood Advisory until noon CDT today for MSZ080.

GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KDLP 13 mi29 min 2.9 77°F 70°F
GISL1 - 8761724 - Grand Isle, LA 16 mi46 min 2.9 G 4.1 80°F
42093 21 mi38 min 80°F2 ft
PILL1 23 mi46 min N 1.9 G 1.9 74°F 81°F1013.9 hPa
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 28 mi46 min NNE 5.1 G 6
BURL1 - Southwest Pass, LA 29 mi64 min 5.1 G 5.1
KXPY 31 mi29 min Calm 73°F 72°F
LOPL1 - Louisiana Offshore Oil Port, LA 34 mi25 min NNE 7 G 8.9 76°F 2 ft1014.1 hPa69°F
SHBL1 - 8761305 - Shell Beach, LA 40 mi46 min N 6 G 8 71°F 79°F1014.1 hPa
KMDJ 45 mi29 min

Wind History for Grand Isle, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

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 Bastian Island, Mississippi River Delta, Louisiana
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Bastian Island
Click for Map
Fri -- 12:55 AM CDT     Moonset
Fri -- 04:40 AM CDT     1.70 feet High Tide
Fri -- 06:48 AM CDT     Sunrise
Fri -- 03:24 PM CDT     Moonrise
Fri -- 04:52 PM CDT     0.14 feet Low Tide
Fri -- 06:50 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.41.51.61.71.71.71.61.41.210.80.60.50.30.20.20.10.20.20.30.50.60.8

Tide / Current Tables for Quatre Bayous Pass, Mississippi River Delta, Louisiana
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Quatre Bayous Pass
Click for Map
Fri -- 12:56 AM CDT     Moonset
Fri -- 06:17 AM CDT     1.89 feet High Tide
Fri -- 06:49 AM CDT     Sunrise
Fri -- 03:25 PM CDT     Moonrise
Fri -- 04:57 PM CDT     0.15 feet Low Tide
Fri -- 06:51 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.31.51.61.81.81.91.91.81.61.41.20.90.60.40.30.20.20.20.20.30.40.60.7

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
Ground Weather Radar Station New Orleans/Baton Rouge, LA
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Gulf Stream Current



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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.