Saturday, January25, 2020
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Marine Weather and Tides
Houma, 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 6:54AMSunset 5:35PM Saturday January 25, 2020 7:27 AM CST (13:27 UTC) Moonrise 7:37AMMoonset 6:25PM Illumination 0% Phase: New Moon; Moon at 0 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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GMZ550 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- 353 Am Cst Sat Jan 25 2020
Today..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Tonight..East winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers after midnight.
Sunday..Southeast winds 15 to 20 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Waves or seas building to 3 to 5 feet with occasional seas to 5 feet. Dominant period 4 seconds in the afternoon. Showers.
Sunday night..Southeast winds 15 to 20 knots becoming east 5 to 10 knots after midnight, then becoming northeast after midnight. Seas 3 to 5 feet. Dominant period 7 seconds. Chance of showers through the night.
Monday..North winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 7 seconds.
Monday night..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds.
Tuesday..East winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 6 seconds. Slight chance of showers.
Tuesday night..Southeast winds 10 to 15 knots becoming northeast 15 to 20 knots after midnight. Seas 2 to 4 feet. Dominant period 5 seconds. Chance of showers and isolated Thunderstorms.
Wednesday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 8 seconds. Slight chance of showers through the day.
Wednesday night..Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 8 seconds. Slight chance of showers.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 353 Am Cst Sat Jan 25 2020
Synopsis..High pressure will settle over the area tonight and Saturday before moving east Sunday. A low pressure system will move across the coastal waters Sunday. Another low pressure system is expected to affect the coastal waters late Tuesday into Wednesday morning.


7 Day Forecast for Marine Location Near Houma, LA
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location: 29.58, -90.71     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 250952 AFDLIX

AREA FORECAST DISCUSSION National Weather Service New Orleans LA 352 AM CST Sat Jan 25 2020

SHORT TERM. Post frontal airmass will move into the area as a surface ridge tracks right along the northern Gulf Coast. Expect mostly clear skies, light winds and mild temps. Highs should be right around normal for this time of year and roughly what was observed yesterday. Increasing clouds from the west this evening and tonight will bring up overnight temps for Sunday morning. These clouds will be coming in response to the next approaching system. This weak open shortwave will be passing across the southern Mississippi Valley midday Sunday, bringing a fairly high chance for mostly showers. Models are in good agreement that a wide swath of light to moderate rain showers will move in Sunday morning and be exiting the CWA by late in the day. Overcast skies throughout the day will keep temps from moderating much. Thus expecting highs to mostly remain in the 50s.

LONG TERM. Zonal flow to start the week should lead to moderating temps without rain. Went with MAV/MEX for forecast highs instead of NBM as the NBM is typically too cool on the return of warmer air. Showers and a few thunderstorms should be returning to the local area mid week as a slightly more amplified trough moves right in the path of the one before it. This progressive pattern of approximately 36 hours between rain events may persist into next weekend.

MEFFER

AVIATION. SKC and excellent VSBY are expected to prevail through most of the day. Beyond 0Z, a mid level cloud deck will be moving in from the West. VFR conditions will prevail even with clouds moving in since they should be around 10kft. West to northwest winds will be mostly around 10 knots or less through tonight and lighter on Saturday.

MEFFER


MARINE. Surface ridge centered just northwest of the coastal waters will track east across central LA, MS, and AL today. This will keep offshore flow persistent, but with a rotation from due north early morning to northeast late in the day. A gradual weakening in wind speeds is likely as well as the center of the ridge closes in on the local area. Higher winds will return as a shortwave passes over the Gulf Coast states and a weak surface low develops in the central Gulf of Mexico. A cold front associated with the shortwave will bring northerly winds back to the coastal waters Monday. Not expecting winds on the backside of this boundary to be strong based on the lack of upper level amplification of the trough. A stronger open wave trough will moving through mid week. This one should bring the return on low-end small craft conditions after it passes through.

MEFFER

DECISION SUPPORT.

DSS code: Blue. Deployed: None. Activation: None. Activities: Forecast support for Stennis Space Center. River Flood Warnings

PRELIMINARY POINT TEMPS/POPS. MCB 61 45 56 49 / 0 30 70 40 BTR 64 48 58 50 / 0 50 80 30 ASD 63 46 58 49 / 0 30 80 30 MSY 61 50 60 53 / 0 30 80 30 GPT 60 46 56 50 / 0 20 70 30 PQL 61 43 58 49 / 0 10 60 40

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 21 mi58 min Calm G 0 42°F 54°F1023.2 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 29 mi58 min NE 1.9 G 2.9 44°F 49°F1022.8 hPa
AMRL1 - 8764227 - Amerada Pass, LA 34 mi58 min NE 1.9 G 2.9 46°F 50°F1022.8 hPa
EINL1 38 mi58 min ENE 5.1 G 7 51°F 50°F1022.8 hPa44°F
CARL1 39 mi58 min 49°F
FREL1 39 mi58 min Calm G 1 47°F 1021.9 hPa
KXPY 41 mi33 min NNE 4.1 50°F 46°F
NWCL1 - 8761927 - New Canal, LA 44 mi58 min Calm G 1 46°F 56°F1022.2 hPa
GISL1 - 8761724 - Grand Isle, LA 45 mi58 min ENE 4.1 G 6 58°F

Wind History for West Bank 1, Bayou Gauche, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houma-Terrebonne Airport, LA3 mi1.9 hrsN 04.00 miFog/Mist39°F38°F100%1022.7 hPa

Link to 5 minute data for KHUM

Wind History from HUM (wind in knots)
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Last 24hrNW7NW7--NW6NW8NW9NW6W11W8W10W10W8--W4W3CalmCalmCalmCalmCalmCalmCalmCalmN5
1 day agoE6E6SE8SE14SE11SE13--------S4S4--CalmCalmW4NW7NW6NW8NW8NW12
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2 days agoNE5E10NE5NE9NE9--E11--E14E10E6E12
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Tide / Current Tables for Cocodrie, Terrebonne Bay, Louisiana
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Cocodrie
Click for Map
Sat -- 06:55 AM CST     Sunrise
Sat -- 07:35 AM CST     Moonrise
Sat -- 10:25 AM CST     -0.19 feet Low Tide
Sat -- 05:34 PM CST     Sunset
Sat -- 06:26 PM CST     Moonset
Sat -- 11:31 PM CST     1.22 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.210.90.70.50.30.1-0-0.1-0.2-0.2-0.100.20.30.50.70.80.911.11.21.2

Tide / Current Tables for Shell Island, Louisiana
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Shell Island
Click for Map
Sat -- 03:02 AM CST     0.98 feet High Tide
Sat -- 06:58 AM CST     Sunrise
Sat -- 07:39 AM CST     Moonrise
Sat -- 09:52 AM CST     -0.81 feet Low Tide
Sat -- 05:36 PM CST     Sunset
Sat -- 06:28 PM CST     Moonset
Sat -- 07:38 PM CST     1.00 feet High Tide
Sat -- 10:20 PM CST     0.84 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91110.90.70.4-0.1-0.5-0.7-0.8-0.8-0.6-0.4-0.10.20.50.70.9110.90.80.8

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 (8,2,3,4)
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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.