Wednesday, July17, 2019 L-36.com


Marine Weather and Tides
Grand Isle, LA

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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 6:09AMSunset 8:03PM Wednesday July 17, 2019 11:22 AM CDT (16:22 UTC) Moonrise 7:51PMMoonset 5:45AM Illumination 100% Phase: Full Moon; Moon at 15 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:201907180315;;785060 Fzus54 Klix 171447 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 947 Am Cdt Wed Jul 17 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. Gmz550-552-180315- 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- 947 Am Cdt Wed Jul 17 2019
Rest of today..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Isolated showers early in the morning.
Tonight..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds.
Thursday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Thursday night..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds.
Friday..Southeast winds 5 to 10 knots. Seas 1 foot or less. Dominant period 5 seconds. Isolated showers and Thunderstorms in the afternoon.
Friday night..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Saturday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Scattered Thunderstorms in the morning. Scattered showers through the day. Isolated Thunderstorms in the afternoon.
Saturday night..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Scattered showers and isolated Thunderstorms after midnight.
Sunday..South winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Scattered showers and Thunderstorms.
Sunday night..South winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Scattered showers after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 947 Am Cdt Wed Jul 17 2019
Synopsis..High pressure from the central atlantic will build westward across the gulf waters through the end of the 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 170847
afdlix
area forecast discussion
national weather service new orleans la
347 am cdt Wed jul 17 2019

Short term
The heat will be with us for several days and heat index values
will rise to around 105 each day. This will eventually be cut as
we move through the weekend into the new week. Precip numbers will
move slowly upward over the weekend and even moreso into the new
week. An actual cold front looks to make a visit by the start to
middle of next week and this is the main reason for the higher
precip numbers next week. Fronts getting this far south without
being strongly modified are rare to say the least. And if this
front is able to move past the area, there could be some warmer
temps in store but we will have to see how this all works out as
it is at the end of this fcast cycle. At the moment, svr wx
numbers are low regarding this front. But this could change as we
move closer to that time and that would not be uncommon.

Aviation
With the exception of MVFR ceiling at kgpt,VFR conditions have been
the rule this morning. Cannot rule out one or two other sites having
brief restrictions around sunrise, but threat isn't high enough to
mention. Kgpt should return toVFR conditions by 15z. Threat of
convection is also too low to mention, soVFR conditions expected
through the remainder of the forecast package. 35

Marine
Should see more of a normal summertime pattern with an evening wind
maxima around 10-12 knots over the eastern waters. As the weekend
approaches, high pressure will center over the coastal waters with
winds more light and variable. 35

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 91 73 92 73 10 0 20 0
btr 90 75 91 74 20 0 30 0
asd 92 75 92 75 10 0 20 0
msy 91 77 91 77 10 0 30 0
gpt 90 76 91 76 10 0 10 0
pql 93 75 93 75 10 0 10 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 mi53 min SE 4.1 G 6 84°F 84°F1021.1 hPa
KXPY 10 mi28 min 2.9 84°F 79°F
LOPL1 - Louisiana Offshore Oil Port, LA 22 mi61 min ESE 1.9 G 4.1 83°F 2 ft1021.1 hPa74°F
KDLP 27 mi28 min -40°F
BURL1 - Southwest Pass, LA 39 mi23 min E 1.9 G 2.9 85°F 1021.1 hPa (+1.0)78°F
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 39 mi53 min Calm G 1.9 1021.5 hPa
KMDJ 41 mi28 min
PILL1 42 mi53 min S 4.1 G 4.1 85°F 83°F1020.8 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 45 mi53 min Calm G 4.1 85°F 84°F1020.8 hPa

Wind History for Grand Isle, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Fourchon, LA10 mi28 minVar 310.00 miA Few Clouds84°F78°F84%1021 hPa
Galliano, South Lafourche Airport, LA20 mi28 minS 410.00 miPartly Cloudy87°F72°F63%1020.7 hPa

Wind History from XPY (wind in knots)
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Last 24hrS8S86
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S7S7S5S4S5S6S5SE6S6S5CalmS4CalmSE3CalmSE6SE5
1 day agoS10S10S8
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S9S8S7S7S7S7S6S8S6S6S8S6S9S9S7S6S8S7S7SE7
2 days agoS13SW11
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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
Wed -- 06:12 AM CDT     Sunrise
Wed -- 06:44 AM CDT     Moonset
Wed -- 12:21 PM CDT     1.16 feet High Tide
Wed -- 08:00 PM CDT     Sunset
Wed -- 08:50 PM CDT     Moonrise
Wed -- 11:39 PM CDT     -0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-00.10.10.20.40.50.60.80.911.11.21.21.110.90.70.50.30.20.10-0

Tide / Current Tables for Bayou Rigaud, Grand Isle, Mississippi River Delta, Louisiana
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Bayou Rigaud
Click for Map
Wed -- 06:11 AM CDT     Sunrise
Wed -- 06:44 AM CDT     Moonset
Wed -- 11:09 AM CDT     1.25 feet High Tide
Wed -- 08:00 PM CDT     Sunset
Wed -- 08:49 PM CDT     Moonrise
Wed -- 10:35 PM CDT     -0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-00.10.30.40.60.70.911.11.21.31.21.210.90.70.50.30.10-0.1-0.1-0.1

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (12,3,4,5)
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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.