Tuesday, April23, 2019 L-36.com


Marine Weather and Tides
Houma, LA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:26AMSunset 7:35PM Tuesday April 23, 2019 5:00 AM CDT (10:00 UTC) Moonrise 11:02PMMoonset 8:47AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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- 342 Am Cdt Tue Apr 23 2019
Today..East winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds.
Tonight..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds.
Wednesday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds.
Wednesday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Slight chance of showers and Thunderstorms after midnight.
Thursday..South winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Waves or seas building to 3 to 6 feet with occasional seas to 6 feet. Dominant period 6 seconds in the afternoon. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Thursday night..Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots after midnight. Seas 3 to 6 feet. Dominant period 7 seconds. Showers and Thunderstorms likely in the evening, then chance of showers and Thunderstorms after midnight.
Friday..North winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Dominant period 7 seconds. Slight chance of showers and Thunderstorms.
Friday night..North winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 6 seconds.
Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds.
Saturday night..East winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 6 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 342 Am Cdt Tue Apr 23 2019
Synopsis..High pressure will remain in control of the coastal waters through Wednesday, which will continue to promote light southeasterly winds. A low pressure system will pass through the area Thursday into Thursday night which will introduce the risk for strong to severe Thunderstorms. Main threats with these storms will be locally strong wind gusts to gale force or higher and isolated tornadoes. This system quickly departs on Friday with clear and calm conditions expected for the upcoming weekend.


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 230925
afdlix
area forecast discussion
national weather service new orleans la
425 am cdt Tue apr 23 2019

Short term
A gentle warming trend through Wednesday. The gentle is used here
because cloud cover will increase as well keeping any strong
heating at bay. The current cold front over texas this morning
will move to near the dallas area by Wednesday. This will be a
very slow progression before a strong short wave rounds the base
of the long wave deep trough with a splitting speed MAX exiting
the base of the long wave trough Thursday. This will help cause
a continuation of strong thunderstorms with heavy rainfall over
northeast texa into northwestern louisiana. The lobe to the south
will cause a quick explosion of strong to severe thunderstorms near
the houston area ejecting eastward. There will be no shortage of
severe wx variables where this area of thunderstorms progresses.

The severity portion of this complex will be where the strongest
mid and upper dynamics are located Thursday. This could be over
south shore locations or north shore locations. To get better
confidence on best locations for severe wx, we will need to get a
little closer to the event. SPC has basically set the entire area
in a slight risk of severe for Thursday. All modes of severe wx
would accompany this risk. Although thunderstorms with this system
will have some very heavy rainfall, the cells will be transitory
so some nuisance flooding of low lying areas may occur but
widespread flooding issues are not expected.

Once the cold front moves through early Friday morning, some
clouds could linger with a sprinkle or two through noon Friday,
but overall fairly nice conditions will retake the area through
the weekend.

Aviation
ExpectVFR conditions for all area terminals through the entire
forecast period. A thick canopy of upper-level cloud cover continues
to advect across all of southeastern la and coastal ms today,
ranging roughly between 20 and 25kft. Additionally light southerly
winds will persist today, with another afternoon seabreeze boundary
developing along coastal areas. This may cause a wind shift at or
near coastal TAF sites bearing to 180 degrees, but should remain
light enough to not cause significant impacts. No additional
hazards are expected. Klg

Marine
The northern gulf coast remains under control of a weak area of high
pressure, centered roughly across the fl panhandle. This has
promoted light southerly to southeasterly winds across the area
which will continue through mid-week. Main focus begins to shift on
the next storm system expected to impact the northern gulf coast on
Thursday, where a cold front and associated strong to possibly
severe thunderstorms will swing across marine zones. At this time,
specific threats from these storms will be strong winds, locally
gusting to gale force or stronger and isolated waterspouts.

Additionally, increasing pressure gradient winds will begin early
Thursday morning out ahead of this system, which may likely gust at
or above small craft advisory criteria. Once this front passes late
Thursday afternoon night, gusty northwesterly winds will persist at
or near advisory criteria, especially for outer gulf zones west of
the ms delta. The upcoming weekend appears dry with no additional
significant hazards expected. Klg

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: slight risk for severe weather Thursday
river flood warnings
decision support services (dss) code legend
green = no weather impacts that require action.

Blue = long-fused watch, warning, or advisory in effect or high
visibility event; marginal risk severe or excessive rain.

Yellow = heightened impacts with short-fused watch, warning or advisory
issuances; radar support for slight risk severe or excessive rain.

Orange = high impacts; enhanced risk severe; nearby tropical
events; hazmat or other large episodes.

Red = full engagement for moderate to high risk of severe and or excessive
rainfall, or direct tropical threats; events of national significance.

Preliminary point temps pops
Mcb 79 57 80 61 0 0 10 30
btr 79 59 80 64 0 0 10 40
asd 78 59 79 63 0 0 10 20
msy 78 63 79 66 0 0 10 20
gpt 75 61 76 65 0 0 0 10
pql 79 59 79 63 0 0 0 10

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 mi30 min Calm G 0 63°F 72°F1018.9 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 29 mi30 min ENE 2.9 G 2.9 63°F 65°F1018.3 hPa
AMRL1 - 8764227 - Amerada Pass, LA 34 mi30 min E 4.1 G 4.1 65°F 66°F1018.1 hPa
EINL1 38 mi30 min SSE 6 G 7 68°F 65°F1017.8 hPa65°F
CARL1 39 mi30 min 62°F
FREL1 39 mi30 min S 1 G 1 63°F 1017.8 hPa
KXPY 41 mi25 min SE 7 70°F 63°F
NWCL1 - 8761927 - New Canal, LA 44 mi30 min S 2.9 G 5.1 64°F 70°F1018.1 hPa
GISL1 - 8761724 - Grand Isle, LA 45 mi30 min SSE 5.1 G 8 68°F 71°F1018.4 hPa

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 mi65 minN 00.75 miHeavy Rain59°F58°F99%1018.6 hPa

Wind History from HUM (wind in knots)
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Last 24hrCalmCalmE4E6SE12
G16
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1 day agoCalmCalmCalmCalmE9SE8S15S10S12
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2 days agoW5W4NW8NW8N10
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Tide / Current Tables for Cocodrie, Terrebonne Bay, Louisiana
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Cocodrie
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Tue -- 01:38 AM CDT     -0.13 feet Low Tide
Tue -- 06:28 AM CDT     Sunrise
Tue -- 09:48 AM CDT     Moonset
Tue -- 02:25 PM CDT     1.23 feet High Tide
Tue -- 07:33 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.1-0.1-0.100.20.30.50.70.80.911.11.21.21.21.21.10.90.80.60.50.30.2

Tide / Current Tables for Shell Island, Louisiana
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Shell Island
Click for Map
Tue -- 12:39 AM CDT     -0.12 feet Low Tide
Tue -- 06:30 AM CDT     Sunrise
Tue -- 09:50 AM CDT     Moonset
Tue -- 10:48 AM CDT     1.66 feet High Tide
Tue -- 07:36 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.1-00.10.30.60.91.11.41.51.61.71.61.51.51.41.41.41.41.31.210.70.4

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (6,6,7,8)
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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.