Wednesday, September26, 2018 L-36.com


Marine Weather and Tides
Port Sulphur, LA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:49AMSunset 6:51PM Wednesday September 26, 2018 12:31 AM CDT (05:31 UTC) Moonrise 8:09PMMoonset 8:06AM Illumination 98% 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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GMZ538 Chandeleur Sound-breton Sound- 935 Pm Cdt Tue Sep 25 2018
Rest of tonight..South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Wednesday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers in the evening. Slight chance of Thunderstorms through the night. Showers likely after midnight.
Thursday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers likely and chance of Thunderstorms.
Thursday night..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Friday..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers and Thunderstorms likely.
Friday night..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers and Thunderstorms likely in the morning, then chance of showers and Thunderstorms in the afternoon.
Saturday night..East winds near 10 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms.
Sunday..East winds near 10 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms.
Sunday night..East winds 10 to 15 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 935 Pm Cdt Tue Sep 25 2018
Synopsis..A cold front will approach the gulf coast early Thursday before stalling inland. This front will weaken and move north Friday allowing high pressure to settle over the gulf coast for the end of the week.


7 Day Forecast for Marine Location Near Port Sulphur, LA
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location: 29.6, -89.62     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 260055
afdlix
area forecast discussion
national weather service new orleans la
755 pm cdt Tue sep 25 2018

Sounding discussion
This afternoon's balloon launch was successful, and there were no
issues. Looking at the sounding, the overall vertical atmospheric
profile is moist. The CAPE is above average for this time of year
(1946 j kg in the mixed layer), and the CIN is below average for
this time of year (-1 j kg in the mixed layer). This combination
likely lead to scattered storms and showers throughout the
evening due to the presence of higher amounts of convection. The
vertical wind profile is fairly uniform with height. At the
surface and lower levels, the winds are southerly and light (5
knots). At the middle levels, the winds are northerly and light
(5-10 knots). At the upper levels, the winds are southerly and
light (15 knots in the jet stream). Msw

Prev discussion issued 341 pm cdt Tue sep 25 2018
synopsis...

old frontal boundary to our north has washed out completely, with
the next frontal boundary extending from near green bay to kansas
city to lubbock. Upper ridging over the bahamas with a trough from
the northern plains into the rockies. Once again, scattered
showers and thunderstorms moving across the area from south to
north, producing locally heavy rains. Temperatures top out around
90 before rain cooled air reaches an area.

Short term...

next cold front reaches the area Wednesday night into Thursday,
but washes out by Friday. No significant change in daily rain
chances through Friday. Temperatures may be a couple of degrees
cooler, but that's more likely due to cloud cover precipitation
than it is to actual cool air. Used bias corrected grids for
temperature forecast, which is generally a little above raw mos
guidance. 35
long term...

ridging attempts to build in from the east, beginning on Sunday,
which should lead to somewhat lower rain chances. Doubtful we will
have a completely dry day early next week, but chances will be
more in the 30 to 40 percent range, as opposed to the current 50
percent or greater. The lower rain chances will also lead to
slightly warmer high temperatures with many areas again pushing
the 90 degree mark. 35
aviation...

mostlyVFR conditions are expected to prevail, however the typical
periodic lower conditions will occur with scattered shra tsra the
remainder of this afternoon, and isolated to scattered shra tsra
tonight into Wednesday morning. The usual low confidence in timing
out the lower impacts will necessitate TAF amendments at times when
ts threats increase and decrease. MVFR to possibly patchy ifr
category CIGS in a broken to widespread stratus deck is expected to
blanket the region from southwest mississippi kmcb to near kbtr,
khdc and kasd for a few hours late tonight into early Wednesday
morning. 22 td
marine...

a high pressure ridge will extend along near the central gulf coast
through most of the week, however the ridge will weaken as a weak
cold front approaches the coast late in the week. This will produce
mostly southerly winds around 10 knots or less and wave heights of 1
to 2 feet, although even light and variable winds and flatter seas
may occur as the front moves closer. A gradually strengthening and
large high pressure area will expand across the eastern u.S. Late in
the weekend and early next week, and this will likely cause an
increase in easterly winds and waves across the region. Scattered to
at times numerous showers and thunderstorms are expected through the
week, so locally higher wind gusts and waves will be possible.

22 td
decision support...

dss code: green.

Deployed: none.

Activation: none.

Activities: none.

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 72 85 69 83 30 90 50 60
btr 73 85 71 84 30 80 40 60
asd 73 86 72 86 30 60 50 70
msy 75 85 74 85 30 70 50 80
gpt 75 86 73 84 50 40 50 70
pql 74 88 72 86 50 40 50 70

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
SHBL1 - 8761305 - Shell Beach, LA 19 mi32 min W 4.1 G 5.1 81°F 88°F1018 hPa (+0.3)
GISL1 - 8761724 - Grand Isle, LA 29 mi32 min SSW 2.9 G 7 83°F 87°F1017.9 hPa (+0.3)
KDLP 33 mi17 min SSE 8.9 84°F 77°F
PILL1 35 mi32 min S 5.1 G 6 82°F 82°F1018.1 hPa (+0.0)
CARL1 36 mi32 min 81°F
NWCL1 - 8761927 - New Canal, LA 39 mi32 min S 1 G 1.9 1017.7 hPa (+0.4)
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi32 min NE 1.9 G 2.9 1017.9 hPa (+0.3)
KXPY 45 mi17 min SSE 7 84°F 77°F
KMIS 46 mi17 min 5.1 G 13 84°F 77°F
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 48 mi32 min SE 9.9 G 12
BURL1 - Southwest Pass, LA 49 mi32 min SSE 12 G 14 83°F 1018.1 hPa (+0.0)78°F

Wind History for Shell Beach, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boothville, LA22 mi41 minSE 410.00 miFair83°F75°F79%1018 hPa

Wind History from BVE (wind in knots)
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Last 24hrSE4S6SE3S4SE3SE3SW6SE3SE5S65SE6S10S9SE8S10S7S9SE5SE4SE3SE5SE4SE4
1 day agoSE3SE5SE4SE3S6S6SE3SE3S5S5S4SE5S7S5S9SE7SE54SE4SE4E4S5CalmSW4
2 days agoSE4SE3SE3SE3SE4E3E3E3SE4S55S6S5S5E13
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Tide / Current Tables for Bay Gardene, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Gardner Island, Breton Sound, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (1,6,7,8)
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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.