Wednesday, November13, 2019 L-36.com


Marine Weather and Tides
Grand Isle, LA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:22AMSunset 5:07PM Wednesday November 13, 2019 3:51 AM CST (09:51 UTC) Moonrise 6:13PMMoonset 7:15AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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:201911131615;;187709 Fzus54 Klix 130303 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 903 Pm Cst Tue Nov 12 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. Gmz550-552-131615- 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- 903 Pm Cst Tue Nov 12 2019
.small craft advisory in effect until 6 am cst Wednesday...
Rest of tonight..Northeast winds 25 to 30 knots. Seas 5 to 8 feet with occasional seas to 10 feet. Dominant period 5 seconds. Waves or seas subsiding to 4 to 7 feet with occasional seas to 8 feet. Dominant period 5 seconds after midnight.
Wednesday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 4 seconds.
Wednesday night..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds.
Thursday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 4 seconds. Chance of showers.
Thursday night..North winds 20 to 25 knots. Seas 3 to 6 feet. Dominant period 4 seconds. Chance of showers through the night.
Friday..North winds 20 to 25 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 4 seconds.
Friday night..North winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Dominant period 4 seconds.
Saturday..North winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds.
Saturday night..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Sunday..North winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Sunday night..North winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 903 Pm Cst Tue Nov 12 2019
Synopsis.. High pressure will build into the central gulf coast region through Wednesday. A surface low should develop along the old frontal boundary offshore and move northeast Thursday through Friday. High pressure then settles into the area once again over the weekend.


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 130503
afdlix
area forecast discussion
national weather service new orleans la
1103 pm cst Tue nov 12 2019

Aviation
Vfr conditions expected throughout the forecast period. A southern
stream shortwave is bringing high level moisture to the area, and
this will allow cirrus deck to gradually build downward over the
next few days. Main forecast issue will continue to be wind speeds
downwind of lake pontchartrain, where knew could see 20 to 30 mph
sustained winds with some gusts over 40 mph through the night. 35
decision support...

dss code: blue.

Deployed: none.

Activation: none.

Activities: hard freeze freeze warnings tonight am tomorrow,
river flood warnings - pearl river @ pearl bogalusa
small craft advisory - all coastal watches warnings
have expired. Lakes ms sound forecast support to
city of new orleans for building collapse. NOAA or&r
support for near mouth of the ms river.

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 23 52 38 52 0 0 10 50
btr 25 51 40 53 0 0 10 50
asd 25 53 42 54 0 0 10 50
msy 32 52 45 54 0 0 10 50
gpt 27 53 42 54 0 0 10 40
pql 26 56 40 53 0 0 10 40

Lix watches warnings advisories
La... Freeze warning until 8 am cst Wednesday for laz056>065.

Hard freeze warning until 8 am cst Wednesday for laz034>037-039-
040-046>050-071-072.

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

Small craft advisory until 3 am cst Wednesday for gmz530-532-534.

Ms... Hard freeze warning until 8 am cst Wednesday for msz068>071-077-
080>082.

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

Small craft advisory until 3 am cst Wednesday for gmz532-534.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GISL1 - 8761724 - Grand Isle, LA 7 mi51 min NNE 13 G 17 58°F
KXPY 10 mi36 min NNE 13 G 19 37°F 28°F
LOPL1 - Louisiana Offshore Oil Port, LA 22 mi59 min NNE 18 G 23 42°F 4 ft1025.1 hPa33°F
KDLP 27 mi36 min NNE 18 G 27 41°F 34°F
SPLL1 - South Timbalier Block 52, LA / CSI06 32 mi111 min NE 17 G 22 41°F
BURL1 - Southwest Pass, LA 39 mi51 min 19 G 22
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 39 mi51 min NNE 18 G 22
KMDJ 41 mi36 min NE 17 G 23 46°F 39°F
PILL1 42 mi51 min NNE 13 G 17 41°F 56°F1024.4 hPa (+0.0)
BYGL1 - 8762482 - Bayou Gauche, LA 45 mi57 min Calm G 5.1 33°F 56°F1026.7 hPa

Wind History for Grand Isle, LA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Fourchon, LA10 mi56 minNNE 14 G 1910.00 miFair37°F30°F75%1025.7 hPa
Galliano, South Lafourche Airport, LA20 mi56 minN 710.00 miFair33°F23°F68%1026.1 hPa

Link to 5 minute data for KXPY

Wind History from XPY (wind in knots)
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1 day agoNE4E5NE5NE5E7E8E8E8E9E8SE7E4SE6S6SE5SE6E5W4W3W4SW5CalmNW6N22
G29
2 days agoN8NE7NE7NE8NE11NE11NE10NE9NE9E10E13E10E8NE7NE4E6E6E7E7E8E7E6E7E6

Tide / Current Tables for Caminada Pass (bridge), Mississippi River Delta, Louisiana
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Caminada Pass (bridge)
Click for Map
Wed -- 06:22 AM CST     Sunrise
Wed -- 07:14 AM CST     Moonset
Wed -- 09:39 AM CST     -0.02 feet Low Tide
Wed -- 05:06 PM CST     Sunset
Wed -- 06:12 PM CST     Moonrise
Wed -- 11:21 PM CST     1.04 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.90.80.70.50.40.20.10-0-000.10.10.20.30.40.50.60.70.80.911

Tide / Current Tables for Bayou Rigaud, Grand Isle, Mississippi River Delta, Louisiana
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Bayou Rigaud
Click for Map
Wed -- 06:21 AM CST     Sunrise
Wed -- 07:14 AM CST     Moonset
Wed -- 08:37 AM CST     0.07 feet Low Tide
Wed -- 05:06 PM CST     Sunset
Wed -- 06:12 PM CST     Moonrise
Wed -- 09:55 PM CST     1.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.110.80.70.50.40.20.10.10.10.10.20.30.40.50.70.80.91.11.21.21.31.31.3

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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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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 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.