Saturday, July4, 2020
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Marine Weather and Tides
New Orleans, 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 6:03AMSunset 8:06PM Saturday July 4, 2020 7:36 PM CDT (00:36 UTC) Moonrise 6:57PMMoonset 4:23AM Illumination 100% Phase: Full Moon; Moon at 14 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- 315 Pm Cdt Sat Jul 4 2020
Tonight..Northeast winds near 5 knots becoming northwest late in the evening, then becoming west after midnight becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds. Showers and Thunderstorms likely early in the evening, then chance of showers and Thunderstorms in the late evening and overnight.
Sunday..North winds near 5 knots becoming southwest late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms early in the morning, then showers and Thunderstorms likely in the late morning and early afternoon. Showers and Thunderstorms late in the afternoon.
Sunday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the evening, then showers likely after midnight. Slight chance of Thunderstorms after midnight.
Monday..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers and chance of Thunderstorms.
Monday night..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers.
Tuesday..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of Thunderstorms in the morning. Showers likely through the day. Thunderstorms likely in the afternoon.
Tuesday night..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Wednesday..West winds 5 to 10 knots. Waves 1 foot or less. Chance of showers and Thunderstorms.
Wednesday night..West winds 5 to 10 knots. Waves less than 1 foot.
Thursday..West winds 5 to 10 knots. Waves less than 1 foot. Slight chance of showers and Thunderstorms in the afternoon.
Thursday night..West winds 5 to 10 knots. Waves less than 1 foot.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 315 Pm Cdt Sat Jul 4 2020
Synopsis..A weak front will hold across the northern gulf region and remain in place through at least Tuesday. Showers and Thunderstorms will be likely across the area at times through the middle of next week.


7 Day Forecast for Marine Location Near New Orleans, LA
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location: 30.07, -90.06     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 042011 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 311 PM CDT Sat Jul 4 2020

SHORT TERM. Tonight through Monday . convection from this afternoon will continue into the evening . models hint at some westward and southerly propagation along the outflows into the New Orleans Metro and towards Baton Rouge by late afternoon/early evening. After loss of heating as we approach sunset would likely see the convection start to wane across the area. Inside any thunderstorms may be very heavy rainfall with slow moving storms and PWATS at or just over 2 inches . rainfall rates of 4-5inches per hour are being seen at this time along with 25-30kt wind gusts.

Frontal boundary and weak low will remain near the region through the short term period with mainly more diurnally driven convection each day . some lingering showers and isolated thunderstorms possible overnight but smaller chances for sure..may have overdone chances for rainfall overnight. Evening crew can follow radar and mesoanalysis trends to adjust if so tonight . possible tomorrow night and Monday night as well as no real indication of significant driver of the convection but daytime heating even with the boundary in place. Overall, high forecast certainty for storms during the afternoon and evening . much lesser certainty for late night into early morning. Afternoon high temps a bit lower than seasonal due to the cloud cover, overnight lows may be a bit higher because of the same cloud cover from daytime storms. ABS

LONG TERM. Tuesday through Saturday . Frontal boundary remains to start the long term portion of the forecast before some indication that upper level ridging to the west and south pushes the boundary and the weak low out of the area mid week into Thursday. Mostly diurnally driven storms and showers with locally heavy rainfall Tuesday and Wednesday. Drying out Thursday into the weekend for the most part . some uncertainty exists exactly how the ridge sets up and that can have a huge role in precip chances late next week into the weekend. If the ridge is slightly further west and/or north then we could see "ring of fire" storm development as easterly flow pushes moist gulf air into the region . if the ridge moves a bit further east then it could stifle any chance for storms and temps could become quite hot into the middle 90s at least by Friday or Saturday and into the weekend. Alot at play for the far end of the extended forecast. ABS

AVIATION. 18Z TAFS . VFR conditions will dominate the period . but with convection developing this afternoon and continuing into the evening will look for possible tempo periods of MVFR and IFR at most sites. Have used VCTS with CB for now to show this potential and will watch radar trends for updates to TAFs across the area. Light winds will continue through the period outside of the storms . with the possibility of minor drops in visibility to 5-6sm in the early morning hours. Didn't fully embrace that in TAFs as some of that I believe is predicated on how much rainfall occurs today/tonight and if clearing of the skies can occur. ABS

MARINE.

Winds will be light (<15 knots) and westerly through Monday morning. Monday evening through Friday morning, winds will be light (<15 knots) and southwesterly to southerly. Friday evening through Saturday, winds will be light (<15 knots) and westerly. Wave heights will correspond with the wind speeds. MSW


PRELIMINARY POINT TEMPS/POPS. MCB 73 88 74 85 / 60 80 60 90 BTR 74 88 74 85 / 60 70 60 90 ASD 72 89 74 87 / 60 80 70 90 MSY 75 87 76 86 / 60 70 70 80 GPT 75 86 76 85 / 60 80 70 90 PQL 72 89 73 87 / 60 80 70 90

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
NWCL1 - 8761927 - New Canal, LA 4 mi48 min N 14 G 17 82°F 85°F1010.8 hPa
CARL1 10 mi48 min 84°F
FREL1 19 mi48 min NNW 1.9 G 5.1 80°F 1010.8 hPa
SHBL1 - 8761305 - Shell Beach, LA 25 mi48 min NW 6 G 8.9 78°F 87°F1012 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 27 mi48 min Calm G 1.9 75°F 82°F1012.1 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 43 mi54 min NNW 5.1 G 6 79°F 84°F1011.9 hPa

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA3 mi43 minN 1910.00 miMostly Cloudy and Breezy83°F70°F65%1011.1 hPa
New Orleans, New Orleans International Airport, LA12 mi43 minNW 510.00 miOvercast84°F73°F70%1012 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA17 mi1.7 hrsW 410.00 miThunderstorm87°F75°F67%1010.7 hPa
Slidell, Slidell Airport, LA23 mi43 minN 010.00 miLight Rain77°F72°F85%1011.4 hPa

Link to 5 minute data for KNEW

Wind History from NEW (wind in knots)
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Last 24hrNW12NW16NW13NW16NW13NW10NW11N11NW8NW11W8W11W12NW8NW5W5W7W7W7NW10NW9NW13N15N19
1 day agoS8S7SW10SW6SW5SW5SW5W7W10W13W15NW17NW17NW13N9N8NE9NE6W16
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2 days agoSE7S6SW9W10SW6W3SW7SW7W7SW9W5W10W8W11N9NW10N7N8NW4NW4NW9N25
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Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Sat -- 02:22 AM CDT     -0.34 feet Low Tide
Sat -- 05:22 AM CDT     Moonset
Sat -- 06:03 AM CDT     Sunrise
Sat -- 02:48 PM CDT     1.60 feet High Tide
Sat -- 07:56 PM CDT     Moonrise
Sat -- 08:04 PM CDT     Sunset
Sat -- 11:44 PM CDT     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.2-0.3-0.3-0.3-0.3-0.100.20.40.60.91.11.31.51.61.61.61.51.31.10.80.60.30.1

Tide / Current Tables for Long Point, Lake Borgne, Louisiana
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Long Point
Click for Map
Sat -- 05:20 AM CDT     Moonset
Sat -- 06:02 AM CDT     Sunrise
Sat -- 12:09 PM CDT     1.45 feet High Tide
Sat -- 07:55 PM CDT     Moonrise
Sat -- 08:03 PM CDT     Sunset
Sat -- 11:42 PM CDT     -0.31 feet Low Tide
Sat -- 11:44 PM CDT     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.2-0.100.20.40.60.811.21.31.41.51.41.31.210.80.50.30.1-0.1-0.2-0.3

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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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.