Friday, August18, 2017 L-36.com


Marine Weather and Tides
Grand Isle, LA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:29AMSunset 7:38PM Friday August 18, 2017 1:10 PM CDT (18:10 UTC) Moonrise 2:08AMMoonset 4:11PM Illumination 13% Phase: Waning Crescent; Moon at 26 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 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- 945 Am Cdt Fri Aug 18 2017
Rest of today..West winds 5 to 10 knots. Seas 1 foot or less. Dominant period 5 seconds.
Tonight..West winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Slight chance of showers and Thunderstorms.
Saturday..Northwest winds 5 to 10 knots becoming southwest late in the afternoon. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Saturday night..West winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday..North winds 5 to 10 knots becoming southeast in the late morning and afternoon. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Monday..East winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday night..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Chance of showers and Thunderstorms.
Tuesday night..Southeast winds 5 to 10 knots becoming northeast after midnight. Seas 1 to 2 feet. Slight chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 945 Am Cdt Fri Aug 18 2017
Synopsis..High pressure will remain in control of the coastal waters through early next week.

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 181714
afdlix
area forecast discussion
national weather service new orleans la
1214 pm cdt Fri aug 18 2017

Aviation
Overall, expect to continuedVFR conditions prevail at all of the
terminals through 18z tomorrow. Some widely scattered convection
may develop near kgpt, kmcb, kasd, khdc, and kbtr between 19z and
00z, and have vcts wording in the forecast to reflect this risk.

Any convective impacts including localized wind shear and gusts
and reduced visibilties will be short-lived... Generally less than
one hour in duration. Also, at kmcb a weak inversion around 12z
could result in some patchy fog and reduced visibilities of around
3 miles. Any fog should clear by 14z as the inversion mixes out.

32

Preliminary point temps pops
Mcb 74 91 74 90 10 60 10 50
btr 76 92 75 91 10 50 10 60
asd 77 92 76 91 10 50 10 50
msy 77 92 78 91 10 50 20 50
gpt 77 90 77 89 20 40 20 40
pql 76 92 75 90 20 30 20 30

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
GISL1 - 8761724 - Grand Isle, LA 7 mi41 min NNE 2.9 G 6 89°F 88°F1017.8 hPa
GRBL1 8 mi131 min NNW 4.1 G 6 1018.1 hPa (+0.7)
KXPY 10 mi36 min W 5.1 G 11 90°F 73°F
LOPL1 - Louisiana Offshore Oil Port, LA 22 mi39 min WNW 1.9 G 5.1 91°F 1 ft1018.1 hPa
KDLP 27 mi36 min Calm 86°F 79°F
SPLL1 - South Timbalier Block 52, LA / CSI06 32 mi131 min NW 7 G 8.9
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 39 mi41 min NNW 6 G 9.9 89°F
BURL1 - Southwest Pass, LA 39 mi71 min NNW 6 G 7 88°F 1018.3 hPa (+0.5)75°F
KMDJ 41 mi36 min NW 8 88°F 77°F
PILL1 42 mi41 min W 7 G 14 85°F 85°F1017.7 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 45 mi41 min WNW 2.9 G 6 89°F 88°F1017.7 hPa

Wind History for Grand Isle, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Fourchon, LA10 mi36 minW 5 G 1110.00 miFair90°F73°F59%1017.6 hPa
Galliano, South Lafourche Airport, LA20 mi36 minN 010.00 miPartly Cloudy91°F75°F60%1017.3 hPa

Wind History from XPY (wind in knots)
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Last 24hrW6W6S76SW7SW6SW5S4S5S5SW5SW4SW5SW5SW5SW5SW6W4CalmW5NW6W74W7
1 day agoS86SW9SW8SW7SW7CalmCalmS4S3S3S6S5S5CalmCalmSW5S5SW4SW6SW6SW5SW6SW7
2 days agoS6S6
G13
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SW3N7
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NW5CalmE4SE5CalmCalmS4S5S4CalmS5CalmSW4SW7SW5
G11
CalmSE4S55

Tide / Current Tables for Caminada Pass (bridge), Mississippi River Delta, Louisiana
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Caminada Pass (bridge)
Click for Map
Fri -- 03:08 AM CDT     Moonrise
Fri -- 06:30 AM CDT     Sunrise
Fri -- 09:01 AM CDT     1.27 feet High Tide
Fri -- 05:10 PM CDT     Moonset
Fri -- 07:36 PM CDT     Sunset
Fri -- 08:33 PM CDT     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.60.70.811.11.21.21.31.21.21.10.90.80.60.40.30.10.10000.1

Tide / Current Tables for Bayou Rigaud, Grand Isle, Mississippi River Delta, Louisiana
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Bayou Rigaud
Click for Map
Fri -- 03:08 AM CDT     Moonrise
Fri -- 06:30 AM CDT     Sunrise
Fri -- 07:46 AM CDT     1.53 feet High Tide
Fri -- 05:10 PM CDT     Moonset
Fri -- 07:22 PM CDT     0.05 feet Low Tide
Fri -- 07:36 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.70.91.11.21.31.41.51.51.51.41.31.10.90.70.50.30.20.10.10.10.10.20.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for New Orleans/Baton Rouge, LA (14,3,4,5)
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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.