Tuesday, September17, 2019 L-36.com


Marine Weather and Tides
Violet, LA

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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 6:44AMSunset 7:04PM Tuesday September 17, 2019 3:39 PM CDT (20:39 UTC) Moonrise 9:18PMMoonset 9:38AM Illumination 86% Phase: Waning Gibbous; Moon at 18 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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GMZ534 Lake Borgne- 1006 Am Cdt Tue Sep 17 2019
Rest of today..East winds near 5 knots becoming southeast in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Tonight..Southwest winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Wednesday..North winds near 5 knots becoming south in the afternoon. Waves less than 1 foot. Dominant period 4 seconds.
Wednesday night..Southwest winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Thursday..Northeast winds 5 to 10 knots becoming southeast 10 to 15 knots in the late morning and afternoon. Waves less than 1 foot building to 1 to 2 feet. Dominant period 4 seconds. Isolated showers in the morning, then scattered showers and Thunderstorms in the afternoon.
Thursday night..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Scattered showers and Thunderstorms in the evening, then isolated showers after midnight.
Friday..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1006 Am Cdt Tue Sep 17 2019
Synopsis..High pressure will remain over the north central gulf through Wednesday. A front will move through the area from east to west Thursday and stall along or near the mississippi river through the weekend. High pressure will then rebuild over the northern gulf coast for the start of next week.


7 Day Forecast for Marine Location Near Violet, LA
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location: 29.97, -89.7     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 170926
afdlix
area forecast discussion
national weather service new orleans la
426 am cdt Tue sep 17 2019

Short term
Again we find our area in between two different air masses. This
time the moisture gradient is located roughly along the miss
river. Wpc has set a portion of this area west of the gradient in
a marginal risk for today. But most of this area could use and
may be capable of handling some of the heavy rainfall, but there
will still be the possibility of an isolated location having
rainfall rates high enough to cause some nuissance flooding.

The heat will be back today, sounds like a broken record, as heat
index values will top around 107f for some areas mainly east of
the miss river. Cloud cover should help keep other areas cooler.

We should see a back door front move into the area by Thursday.

As the tropical disturbance over the NW gulf begins to unwind
after coming ashore, there may be enough moisture provided to the
front to give some much needed rain to the whole area by Thursday
and Friday. Sfc high pressure then looks to settle over the gulf
south by the middle of next week. Eventhough models want to paint
some QPF in some grid sections, this may be a little drier than
indicated next week. One or two tropical waves look to traverse
the southern gulf next week as well, but as the stacked high
settles in over the area, any wave capable of producing a
disturbance would likely continue moving west keeping the area dry
and hot. Within this fcast pack, it is hard to find any relief
from the heat. But we will keep looking.

Aviation
ExpectVFR conditions for all area terminals early this morning
through late morning early afternoon. Only feature to watch will be
for western area terminals, generally including khum and kbtr later
this afternoon as guidance suggests a band of tropical
showers storms to develop and drift north across south-central la.

Main threats associated with these showers storms will be temporary
reductions in visibility leading to periodic lowering of flight
categories, and gusty erratic surface winds of around 20 to 30
knots. Elsewhere, typical late morning CU field will develop, but
should remain largely dry through the afternoon and evening. All
areas dry out tonight withVFR conditions prevailing. Klg

Marine
A weak pressure field has caused winds to colapse this morning.

This should continue to be the case until Thursday when a back
door front will move into the coastal waters causing easterly
winds to rise to around 15-20kt through the weekend. By the early
part of next week, high pressure settles back into the area and
winds again go light.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: marginal risk for excessive rainfall western areas.

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 94 71 94 72 10 0 10 0
btr 92 73 92 74 40 10 30 0
asd 94 72 94 73 10 0 10 0
msy 92 77 93 78 30 0 30 0
gpt 92 74 93 75 10 0 10 0
pql 96 73 97 73 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
SHBL1 - 8761305 - Shell Beach, LA 7 mi58 min E 8.9 G 9.9 87°F 88°F1015.8 hPa
NWCL1 - 8761927 - New Canal, LA 22 mi58 min E 1.9 G 6 92°F 87°F1014.5 hPa
CARL1 23 mi52 min 86°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 32 mi58 min SSE 9.9 G 11 86°F 85°F1016.1 hPa
FREL1 39 mi52 min NE 9.9 G 11 86°F 1014.1 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 40 mi58 min ESE 7 G 11 87°F 84°F1015.4 hPa

Wind History for Shell Beach, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA18 mi47 minESE 1010.00 miA Few Clouds91°F73°F56%1014.5 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA20 mi45 minSE 810.00 miMostly Cloudy90°F77°F66%1015 hPa

Link to 5 minute data for KASD

Wind History from ASD (wind in knots)
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Last 24hrE6----Calm--N3Calm----------CalmCalmCalmCalmNE4--NE53E4SE3SE6SE8
1 day agoNE4SE4SE3Calm------------Calm------N4--NE3--E5SE7SE10SE10SE10SE8
2 days agoE6E7CalmCalmCalm------------------N3N3----NE6NE11NE5NE6N13N10

Tide / Current Tables for Shell Beach, Lake Borgne, Louisiana
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Shell Beach
Click for Map
Tue -- 12:06 AM CDT     1.02 feet Low Tide
Tue -- 04:55 AM CDT     1.13 feet High Tide
Tue -- 06:44 AM CDT     Sunrise
Tue -- 09:37 AM CDT     Moonset
Tue -- 02:03 PM CDT     0.75 feet Low Tide
Tue -- 07:01 PM CDT     Sunset
Tue -- 09:17 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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111.11.11.11.11.11.1110.90.80.80.80.70.80.80.80.90.91111

Tide / Current Tables for Chef Menteur, Chef Menteur Pass, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS 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 (16,3,4,5)
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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.