Friday, November16, 2018 L-36.com


Marine Weather and Tides
Pointe a la Hache, 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 6:25AMSunset 5:05PM Friday November 16, 2018 2:30 PM CST (20:30 UTC) Moonrise 2:25PMMoonset 1:01AM Illumination 63% Phase: Waxing Gibbous; Moon at 9 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- 940 Am Cst Fri Nov 16 2018
Today..Northeast winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Tonight..East winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Saturday..East winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Saturday night..East winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Sunday..Northeast winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Sunday night..Northeast winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Monday..Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Monday night..Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Tuesday..Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tuesday night..Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 940 Am Cst Fri Nov 16 2018
Synopsis..High pressure will persist over the central gulf coast region through Monday. A trough of low pressure will develop off the texas coast starting Tuesday into the middle of next week.


7 Day Forecast for Marine Location Near Pointe a la Hache, LA
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location: 29.43, -89.98     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 161703
afdlix
area forecast discussion
national weather service new orleans la
1103 am cst Fri nov 16 2018

Aviation section updated...

Prev discussion issued 337 am cst Fri nov 16 2018
short term...

today through the weekend looks to be a dry forecast as surface high
pressure dominates and upper level troughing remains in place.

Continental air mass has brought the first light freeze of this fall
season with many locations again relatively close to freezing.

Strong cold air advection that was keeping the area cold will begin
to relax as the surface high centers directly overhead, breaking
down the wind field. Should sees temperatures bounce back quite a
bit today with highs in the lower 60s, which is still 10 degrees
below normal.

As the surface ridge building in shifts to just northeast of the
area on Saturday morning, will likely have cold air drainage setup
which will allow temps to fall back into the upper 30s to near 40.

The warming trend from airmass modification will continue Saturday
into Sunday with highs topping out in the mid to upper 60s. It will
be a pretty spectacular weekend with sunny skies each day.

Long term...

the GFS and ECMWF had been showing a weak upper level inflection
passing across the mid mississippi valley Sunday, bringing a weak
cold front through the CWA Sunday night. The ECMWF still shows that
but now the GFS holds off the boundary till Monday night. It really
shouldn't have any appreciable affect on the forecast either way as
it will be too dry to have precip and basically just provide a wind
shift.

The next possible forecast impact will be during the tues-thur time
frame. Models show another shortwave passing over the CWA in the
middle of next week. The GFS solution keeps the local area mostly
dry with stronger forcing to keep the upper trough, surface low, and
associated rain shield along the coast and into the gulf of mexico.

The ECMWF suggests rain making it as far north as the i-10 corridor
from baton rouge to new orleans and southward. Uncertainty remains
high with this feature and thus decided to us a blend of those
models in terms of pops.

Meffer
aviation...

generally clear skies (except for some high clouds) and good
visibility will meanVFR conditions will prevail through Saturday.

The only exception will be at khum where some patchy light fog may
occasionally restrict the visibility into the 3 to 5 mile range
mainly until 06-14z tonight. 22 TD bl
marine...

a dome of surface high pressure over the central gulf coast region
will remain over the region through the weekend into Monday. This
will result in winds around 10 knots or less and seas 2 feet or less
across all waters through Monday. Northeast to east winds are
expected to rise into the 10 to 15 knots range Tuesday and 15 to 20
knots over western waters on Wednesday as an inverted trough of low
pressure develops off the texas coast. 22 td
decision support...

dss code: green.

Deployed: none.

Activation: none.

Activities: river flood warnings along pearl river at bogalusa and
pearl river.

River flood warning along mississippi river at red river
landing

Preliminary point temps pops
Mcb 62 40 67 44 0 0 0 0
btr 62 40 67 47 0 0 0 0
asd 63 38 68 44 0 0 0 0
msy 62 44 68 51 0 0 0 0
gpt 61 39 66 44 0 0 0 0
pql 64 36 69 42 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 11 mi30 min E 5.1 G 7 58°F 62°F1023.1 hPa (-2.3)
KXPY 24 mi15 min 2.9 57°F 36°F
BYGL1 - 8762482 - Bayou Gauche, LA 34 mi30 min SE 5.1 G 8 62°F 53°F1022.9 hPa (-2.7)
SHBL1 - 8761305 - Shell Beach, LA 34 mi30 min N 2.9 G 4.1 55°F 56°F1023 hPa (-2.6)
CARL1 36 mi30 min 55°F
LOPL1 - Louisiana Offshore Oil Port, LA 38 mi44 min NE 5.1 G 8 56°F 1 ft1023.1 hPa35°F
PILL1 42 mi30 min NE 4.1 G 6 56°F 56°F1022.9 hPa (-2.3)
NWCL1 - 8761927 - New Canal, LA 42 mi30 min N 2.9 G 4.1 56°F 55°F1022.7 hPa (-2.6)
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 46 mi30 min ENE 6 G 7
SPLL1 - South Timbalier Block 52, LA / CSI06 47 mi90 min NE 4.1 G 7 59°F
BURL1 - Southwest Pass, LA 47 mi30 min NE 4.1 G 4.1 58°F 1023 hPa (-2.3)39°F

Wind History for Grand Isle, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galliano, South Lafourche Airport, LA15 mi35 minSE 310.00 miFair64°F32°F31%1023 hPa
Port Fourchon, LA24 mi35 minVar 410.00 miFair57°F35°F44%1023.4 hPa

Wind History from GAO (wind in knots)
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Last 24hrNW8SW5SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4CalmCalmCalmCalmNE5NE3E3N5NE3Calm
1 day agoNW9NW9NW9NW8NW10NW8N8NW5N6NW6NW4NW4NW3NW3NW4W3NW4N5NW8NW7NW6N7N7N3
2 days agoN15N15
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Tide / Current Tables for Manilla, Mississippi River Delta, Louisiana
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Manilla
Click for Map
Fri -- 12:01 AM CST     Moonset
Fri -- 04:21 AM CST     0.84 feet High Tide
Fri -- 06:24 AM CST     Sunrise
Fri -- 01:24 PM CST     Moonrise
Fri -- 04:44 PM CST     0.21 feet Low Tide
Fri -- 05:04 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.80.80.80.80.80.80.70.70.60.50.40.40.30.20.20.20.20.30.40.40.50.6

Tide / Current Tables for Independence Island, Mississippi River Delta, Louisiana
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Independence Island
Click for Map
Fri -- 12:01 AM CST     Moonset
Fri -- 04:18 AM CST     0.77 feet High Tide
Fri -- 06:24 AM CST     Sunrise
Fri -- 01:24 PM CST     Moonrise
Fri -- 03:30 PM CST     0.19 feet Low Tide
Fri -- 05:04 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.70.70.80.80.80.70.70.60.60.50.40.30.30.20.20.20.20.30.30.40.40.50.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (15,3,4,5)
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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.