Saturday, May25, 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 6:00AMSunset 7:53PM Saturday May 25, 2019 9:57 PM CDT (02:57 UTC) Moonrise 12:00AMMoonset 10:57AM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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:201905260945;;452334 Fzus54 Klix 252031 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 331 Pm Cdt Sat May 25 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. Gmz550-552-260945- 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- 331 Pm Cdt Sat May 25 2019
Tonight..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds.
Sunday..East winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 7 seconds.
Sunday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds.
Monday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 7 seconds.
Monday night..Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 7 seconds. Waves or seas building to 3 to 5 feet with occasional seas to 5 feet. Dominant period 7 seconds after midnight.
Tuesday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 7 seconds.
Tuesday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds.
Wednesday..Southeast winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 5 seconds.
Wednesday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Thursday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Slight chance of showers.
Thursday night..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Slight chance of showers after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 331 Pm Cdt Sat May 25 2019
Synopsis..A strong ridge of high pressure will remain in place through 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 252010
afdlix
area forecast discussion
national weather service new orleans la
310 pm cdt Sat may 25 2019

Discussion
A high pressure system is currently in place over our area and is
expected to persist through Wednesday. This high pressure system
causes southerly winds, which enhance the moisture and warm air
advection into the area. This system also causes upper level
convergence, which leads to sinking air and a stable atmosphere
overall. This warmer, moist air will lead to warmer temperatures
and heat index values through this weekend into the beginning of
next week.

Beginning Thursday morning, a shortwave upper level trough will
move through the midwestern u.S. This trough may cause some
forcing to influence our area. There are higher precipitable
water values present over our area Thursday through Saturday
during the daytime heating hours. The mid-level lapse rates,
however, are not very conducive for the development of convection.

As a result, pop-up scattered showers will be possible during the
daytime hours Thursday through Saturday of next week, especially
if the mid-levels of the atmosphere receive any cooling from the
upper level system. Msw
aviation...

the rest of the afternoon and through 05z Sunday will remainVFR.

Again overnight, primarily in the 10-14z Sunday, brief flight
restrictions will again be possible. These restrictions will
generally be in the MVFR range due to occasional ceilings
fl010-020 and or 3-5sm in fog mist. Can't rule out ifr,
particularly at kasd, kmcb and khum. Any restrictions should
improve toVFR around 14z Sunday. 18

Marine
Upper ridging and surface high over the southeastern us will
maintain a southeast flow over the region and coastal waters through
the forecast period. Wind speeds should remain below 15 knots
through the forecast period, and do not anticipate any lengthy
periods of exercise caution conditions, if they occur at all. 18
decision support...

dss code: blue deployed: none.

Activation: none.

Activities: 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 66 93 68 91 0 0 0 0
btr 68 92 69 91 0 0 0 0
asd 68 91 71 90 0 0 0 0
msy 72 91 74 90 0 0 0 0
gpt 71 89 72 87 0 0 0 0
pql 68 92 69 90 0 0 0 0

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 mi39 min SE 7 G 9.9 83°F1019.2 hPa
KXPY 10 mi42 min ESE 6 81°F 73°F
LOPL1 - Louisiana Offshore Oil Port, LA 22 mi72 min ESE 8.9 G 11 80°F 2 ft1020.1 hPa71°F
KDLP 27 mi42 min ESE 5.1 81°F 75°F
SPLL1 - South Timbalier Block 52, LA / CSI06 32 mi117 min ESE 8.9 G 9.9 80°F
BURL1 - Southwest Pass, LA 39 mi57 min E 8.9 G 9.9 80°F 1019.6 hPa (-0.0)75°F
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 39 mi39 min E 8 G 8.9
KMDJ 41 mi42 min ESE 9.9 79°F 73°F
PILL1 42 mi39 min ESE 1 G 1.9 73°F1019.4 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 45 mi45 min SE 1.9 G 2.9 80°F 87°F1019.1 hPa

Wind History for Grand Isle, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Fourchon, LA10 mi62 minE 610.00 mi81°F73°F79%1019.3 hPa
Galliano, South Lafourche Airport, LA20 mi62 minN 07.00 miPartly Cloudy78°F70°F80%1019 hPa

Wind History from XPY (wind in knots)
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SE9SE9SE5SE5SE3SE5SE5E8E6E6
G12
E8E8SE7SE9E8E6E8SE6SE4SE7E6
1 day agoSE12SE10SE9E9
G14
SE8SE10SE10SE8SE6SE6SE86E10E10E11E11E10
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2 days agoSE13SE14
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Tide / Current Tables for Caminada Pass (bridge), Mississippi River Delta, Louisiana
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Caminada Pass (bridge)
Click for Map
Sat -- 12:57 AM CDT     Moonrise
Sat -- 03:02 AM CDT     -0.02 feet Low Tide
Sat -- 06:03 AM CDT     Sunrise
Sat -- 11:57 AM CDT     Moonset
Sat -- 04:13 PM CDT     0.84 feet High Tide
Sat -- 07:50 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10-0-0-000.10.20.30.30.40.50.60.70.80.80.80.80.80.70.60.50.40.3

Tide / Current Tables for Bayou Rigaud, Grand Isle, Mississippi River Delta, Louisiana
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Bayou Rigaud
Click for Map
Sat -- 12:56 AM CDT     Moonrise
Sat -- 01:40 AM CDT     0.04 feet Low Tide
Sat -- 06:03 AM CDT     Sunrise
Sat -- 11:56 AM CDT     Moonset
Sat -- 03:13 PM CDT     1.01 feet High Tide
Sat -- 07:50 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1000.10.10.20.30.40.50.60.70.80.90.911110.90.80.70.50.40.3

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (22,6,7,8)
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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.