Thursday, October1, 2020
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L-36.com

Marine Weather and Tides
Lacombe, 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 6:51AMSunset 6:45PM Thursday October 1, 2020 6:12 PM CDT (23:12 UTC) Moonrise 6:03PMMoonset 5:35AM Illumination 100% Phase: Full Moon; Moon at 15 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- 330 Pm Cdt Thu Oct 1 2020
.small craft exercise caution in effect from 10 pm cdt this evening through Friday morning...
Tonight..Northeast winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Friday..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday night..Northeast winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday night..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday night..Northeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday..Northeast winds 10 to 15 knots. Waves 1 to 2 feet.
Monday night..Northeast winds near 10 knots. Waves 1 to 2 feet.
Tuesday..Northeast winds 5 to 10 knots. Waves 1 to 2 feet.
Tuesday night..Northeast winds 5 to 10 knots. Waves 1 to 2 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 330 Pm Cdt Thu Oct 1 2020
Synopsis..A reinforcing cold front will move through the coastal waters this evening with high pressure rebuilding over the weekend.


7 Day Forecast for Marine Location Near Lacombe, LA
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location: 30.25, -90.04     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 012013 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 313 PM CDT Thu Oct 1 2020

SHORT TERM. Re-enforcing Canadian cold front currently entering the northern portions of the forecast area and will continue to push through the remainder of the land areas this evening and south of the coastal waters by late evening. Low level cold air advection overnight to likely not allow the boundary layer to decouple fully, to maintain slightly warmer overnight temperatures tonight despite frontal passage. Full raditional cooling is expected Friday night with some drainage enhancement in and near river valleys for lows returning to the lower 50s, possibly 49 in a couple of low lying places in interior portions of the forecast area. Daytime temperatures will be October pleasant in the 70s. Another short-wave swinging through the base of the long wave trough to bring another re-enforcing shot Sunday to maintain the milder conditions through the weekend.

LONG TERM. Long wave trough of the short-term that is steering the frontal parade will be de-amplifying and sliding eastward, allowing the surface air mass to modify early next week. A weaker but effective subsidence ridge should remain in place over the Gulf states to allow for steady warming trend and confine any tropical wave/depression developments in the lower Gulf of Mexico to remain under the influence of the Central American Gyre flow pattern. A continuation of dry conditions to prevail for the entire forecast period.

AVIATION. VFR CAVU all terminals next 30 hours. Modest cold air advection with frontal passage this evening will impart a period of nocturnal gustiness once again at KNEW and KMSY that will diminish with daytime heating by around 14Z Friday.

MARINE. Cold air advection (lower 60s dewpoints) over the warmer (mid 70s) lake and shelf waters to produce thermal mixing gustiness overnight that should abate once air temperatures approach and exceed water temperatures Friday mid-morning. Though sustained winds may not attain SCA criteria for very long, the frequent gusts away from the shore will warrant SCA, but may be too infrequent on the tidal lakes and MS Sound. As a result, adjusted the SCA to lower to 'exercise caution' those areas and maintain for rest of open gulf and LA sounds. High pressure will moderate a bit later Friday and Saturday before another clipper type front bring yet more re- enforcement of cooler air Sunday. That air mass steadily moderates early next week for relatively light to moderate easterly winds and low seas settling across the north gulf by late Monday and Tuesday. It remains to be seen if tropical cyclone development takes places over the next few days in the western Caribbean Sea that may generate a swell train into the north gulf by early next week.

DECISION SUPPORT. DSS Code: Blue Activities: NASA SLS Support Critical DSS Site Support MS coast public safety support

PRELIMINARY POINT TEMPS/POPS. MCB 56 75 52 75 / 0 0 0 0 BTR 56 78 53 77 / 0 0 0 0 ASD 56 78 51 77 / 0 0 0 0 MSY 64 76 60 75 / 0 0 0 0 GPT 59 76 55 75 / 0 0 0 0 PQL 56 78 52 77 / 0 0 0 0

LIX WATCHES/WARNINGS/ADVISORIES. LA . None. GM . Small Craft Advisory from 10 PM this evening to 10 AM CDT Friday for GMZ536-538-550-552-555-557-570-572-575-577.

MS . None. GM . Small Craft Advisory from 10 PM this evening to 10 AM CDT Friday for GMZ538-550-552-555-557-570-572-575-577.



24/RR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 16 mi55 min W 1 G 4.1 82°F 77°F1015.8 hPa
CARL1 22 mi55 min 77°F
FREL1 23 mi55 min Calm G 2.9 85°F 1015.6 hPa
SHBL1 - 8761305 - Shell Beach, LA 33 mi55 min NW 5.1 G 5.1 81°F 79°F1016.6 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 38 mi55 min WNW 5.1 G 6 85°F 76°F1016.7 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 38 mi55 min NNW 8.9 G 12 86°F 78°F1016.4 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA14 mi20 minN 010.00 miFair82°F62°F51%1016.3 hPa
New Orleans, New Orleans International Airport, LA22 mi20 minNW 410.00 miPartly Cloudy83°F59°F44%1016.9 hPa

Link to 5 minute data for KASD

Wind History from ASD (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3N454544NW5Calm
1 day agoCalmCalmCalmCalmCalmCalmS3CalmCalmCalmCalmCalmCalmCalmCalmCalmW4S3Calm3SW854W3
2 days agoN11
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N10N9N11N6N5N5N6N5NW3N4N10N4N6N4N8
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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
Thu -- 01:08 AM CDT     0.70 feet Low Tide
Thu -- 04:40 AM CDT     0.76 feet High Tide
Thu -- 06:34 AM CDT     Moonset
Thu -- 06:53 AM CDT     Sunrise
Thu -- 10:05 AM CDT     0.71 feet Low Tide
Thu -- 04:06 PM CDT     Full Moon
Thu -- 04:59 PM CDT     0.99 feet High Tide
Thu -- 06:44 PM CDT     Sunset
Thu -- 07:02 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.70.70.80.80.80.70.70.70.70.70.80.80.90.911110.90.90.80.8

Tide / Current Tables for Long Point, Lake Borgne, Louisiana
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Long Point
Click for Map
Thu -- 02:00 AM CDT     0.69 feet High Tide
Thu -- 06:32 AM CDT     Moonset
Thu -- 06:38 AM CDT     0.64 feet Low Tide
Thu -- 06:52 AM CDT     Sunrise
Thu -- 02:19 PM CDT     0.89 feet High Tide
Thu -- 04:06 PM CDT     Full Moon
Thu -- 06:43 PM CDT     Sunset
Thu -- 07:00 PM CDT     Moonrise
Thu -- 09:03 PM CDT     0.73 feet Low 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
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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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.