Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Grand Isle, 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 6:53AMSunset 5:31PM Wednesday January 23, 2019 3:00 AM CST (09:00 UTC) Moonrise 8:35PMMoonset 8:57AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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:201901231615;;779158 Fzus54 Klix 230308 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 908 Pm Cst Tue Jan 22 2019 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. Gmz550-552-231615- 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- 908 Pm Cst Tue Jan 22 2019
.small craft advisory in effect through late Wednesday night...
Rest of tonight..South winds 15 to 20 knots. Seas 4 to 7 feet with occasional seas to 8 feet. Dominant period 7 seconds. Waves or seas building to 5 to 8 feet with occasional seas to 10 feet. Dominant period 7 seconds after midnight. Chance of showers through the night.
Wednesday..South winds 15 to 20 knots becoming west 20 to 25 knots early in the afternoon, then becoming northwest 25 to 30 knots late in the afternoon. Seas 5 to 8 feet with occasional seas to 10 feet. Dominant period 8 seconds. Patchy fog through the day. Showers likely early in the morning. Chance of Thunderstorms through the day. Showers in the late morning and afternoon.
Wednesday night..Northwest winds 20 to 25 knots. Seas 8 to 12 feet with occasional seas to 13 feet. Dominant period 8 seconds. Patchy fog in the evening. Chance of showers in the evening.
Thursday..North winds 15 to 20 knots. Seas 4 to 7 feet with occasional seas to 8 feet. Dominant period 8 seconds. Waves or seas subsiding to 3 to 5 feet with occasional seas to 5 feet. Dominant period 8 seconds in the afternoon.
Thursday night..North winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 8 seconds.
Friday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds.
Friday night..East winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 7 seconds.
Saturday..East winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Saturday night..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers after midnight.
Sunday..North winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds.
Sunday night..Northwest winds 10 to 15 knots becoming southwest 5 to 10 knots after midnight. Seas 2 to 4 feet. Dominant period 7 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 908 Pm Cst Tue Jan 22 2019
Synopsis..Another cold front will push through the coastal waters late Wednesday. High pressure will settle for a short time after Wednesday and another cold front will move through the northern gulf Friday.


7 Day Forecast for Marine Location Near Grand Isle, LA
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location: 29.2, -90.05     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 230544
afdlix
area forecast discussion
national weather service new orleans la
1144 pm cst Tue jan 22 2019

Aviation
Ceiling will continue lower through the night. Isolated to
scattered showers are streaming north across the mississippi coast
affecting kgpt and kpql. However, the best chances will move in
just ahead of the front after 12z. Have included tempo groups for
the most likely timing of the heaviest rain along the front after
12z. South wind will increase and become gusty in the morning and
shifting northwest between 19z and 23z... Mainly ahead and behind
the front. Ceiling will lower between 1200 to 2000 feet between
15 and 21z Wednesday and ascending after 23z.

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 6 am cst Thursday for gmz536-538-550-
552-555-557-570-572-575-577.

Ms... Coastal flood advisory until 6 am cst Wednesday for msz080.

Gm... Small craft advisory until 6 am cst Thursday for gmz538-550-552-
555-557-570-572-575-577.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GISL1 - 8761724 - Grand Isle, LA 7 mi42 min ESE 1.9 G 4.1 62°F 61°F1015.6 hPa
KXPY 10 mi25 min Calm 64°F 64°F
LOPL1 - Louisiana Offshore Oil Port, LA 22 mi39 min S 15 G 16 67°F 5 ft1015.1 hPa63°F
BURL1 - Southwest Pass, LA 39 mi60 min S 21 G 21 68°F 1015.6 hPa (-1.7)67°F
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 39 mi48 min 65°F 47°F1016.4 hPa
KMDJ 41 mi25 min SSE 24 72°F 68°F
PILL1 42 mi42 min S 9.9 G 12 59°F 47°F1015.8 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 45 mi42 min ESE 1 G 4.1 60°F 56°F1015.9 hPa

Wind History for Grand Isle, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Fourchon, LA10 mi65 minSE 76.00 miFog/Mist64°F64°F100%1015.2 hPa
Galliano, South Lafourche Airport, LA20 mi65 minN 010.00 miMostly Cloudy62°F57°F85%1016.3 hPa

Wind History from XPY (wind in knots)
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1 day agoNE8NE10NE10NE7NE6E9E10E11E15
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2 days agoNW19
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N14N8NW16NW13NW7N7N6N5N3N4NE6N6NE8NE8NE10

Tide / Current Tables for Caminada Pass (bridge), Mississippi River Delta, Louisiana
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Caminada Pass (bridge)
Click for Map
Wed -- 12:17 AM CST     0.85 feet High Tide
Wed -- 06:53 AM CST     Sunrise
Wed -- 08:57 AM CST     Moonset
Wed -- 11:41 AM CST     -0.36 feet Low Tide
Wed -- 05:30 PM CST     Sunset
Wed -- 08:35 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.80.70.50.40.20-0.1-0.2-0.3-0.4-0.4-0.3-0.3-0.2-0.1-00.10.20.30.40.50.6

Tide / Current Tables for Bayou Rigaud, Grand Isle, Mississippi River Delta, Louisiana
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Bayou Rigaud
Click for Map
Wed -- 06:52 AM CST     Sunrise
Wed -- 08:56 AM CST     Moonset
Wed -- 10:27 AM CST     -0.52 feet Low Tide
Wed -- 05:30 PM CST     Sunset
Wed -- 08:34 PM CST     Moonrise
Wed -- 11:51 PM CST     0.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.60.50.30.1-0.1-0.2-0.4-0.5-0.5-0.5-0.5-0.4-0.3-0.2-0.10.10.20.30.40.50.60.7

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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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Wind Forecast for New Orleans/Baton Rouge, LA (4,6,7,8)
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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.