Monday, August19, 2019 L-36.com


Marine Weather and Tides
Belle Chasse, LA

Version 3.4
NOTICE
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 6:29AMSunset 7:38PM Monday August 19, 2019 3:36 PM CDT (20:36 UTC) Moonrise 9:15PMMoonset 8:57AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 1000 Am Cdt Mon Aug 19 2019
Today..West winds 5 to 10 knots becoming southwest in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms early in the morning, then showers and Thunderstorms likely late in the morning. Showers and Thunderstorms in the afternoon.
Tonight..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday..West winds near 5 knots becoming south in the afternoon. 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 and Thunderstorms.
Thursday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Thursday night..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Friday..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Friday night..West winds 5 to 10 knots. Waves 1 foot or less. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1000 Am Cdt Mon Aug 19 2019
Synopsis..A ridge of surface high pressure will extend across the eastern and central gulf coast through the upcoming week. Winds, waves and seas will be locally higher in and near storms. Stronger marine storms will likely contain frequent lightning activity.


7 Day Forecast for Marine Location Near Belle Chasse, LA
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location: 29.78, -90     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 191805
afdlix
area forecast discussion
national weather service new orleans la
105 pm cdt Mon aug 19 2019

Updated aviation discussion...

Prev discussion issued 412 am cdt Mon aug 19 2019

Short term
Rainfall rates with thunderstorms yesterday were
quite efficient and there is no reason to think this will not be
the case today as well. Pw values are again around 2.5" today and
storm motion will be slow as well but at least somewhat pulsing.

Storm total rainfall amounts should not get out of hand but that
is not going to be the issue with any isolated areas that get the
most rainfall. It will be the rainfall rates that would cause the
issues. Some of these could drop around 3" hr with the heaviest
producers. Those thunderstorms capable of staying over any one
area for that full hour or more will see some flooding of low
lying and poor drainage areas. Basically, the totals fcast will be
for 2 to 4" with localized higher amounts possible. This should
be mainly in and adjacent to the slight risk of excessive rainfall
area that wpc has introduced. Severe wx variables are again not
impressive so rainfall should be the biggest issue outside marsh
areas. This could be much the same for Tuesday as well. But some
slightly drier air could keep precip numbers a bit lower for wed
and at least Thu but moisture will be back by Fri and hold through
the weekend.

Aviation
Widespread spotty showers and storms continue across all area
terminals early this afternoon. In any one storm, expect heavy
rainfall reducing area vis, lower cig's and gusty downdraft winds
in excess of 25 to 35 knots. Expect these conditions to persist
through early this evening before conditions improve after sunset.

Flight categories will remainVFR outside of any passing storms,
but may periodically drop to ifr lifr within any storms.VFR will
prevail tonight, with the exception of near coastal TAF sites
with some isolated storm coverage possible through the night. Klg

Marine
Outside of the threat of thunderstorms affecting the waters mainly
during the late overnight and early morning hours, a benign weather
regime will remain in place through the end of the week with the
usual evening maxima in wind speeds. Seas of 2-4 feet at most can
be expected outside of thunderstorm effects. 35

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: marginal risk excessive rainfall.

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 92 73 90 10 60 20 60
btr 75 91 75 91 20 50 20 60
asd 74 91 74 91 30 60 30 60
msy 77 90 77 90 30 50 20 60
gpt 74 88 75 88 40 60 40 60
pql 73 90 74 91 40 60 50 60

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
CARL1 13 mi49 min 87°F
NWCL1 - 8761927 - New Canal, LA 18 mi55 min SW 6 G 9.9 81°F 88°F1016.2 hPa
SHBL1 - 8761305 - Shell Beach, LA 18 mi55 min NNE 11 G 26 73°F 88°F1018.8 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 22 mi55 min WSW 1.9 G 5.1 77°F 85°F1016.8 hPa
FREL1 32 mi49 min SW 5.1 G 9.9 77°F 1015.2 hPa
GISL1 - 8761724 - Grand Isle, LA 36 mi49 min SSE 8 G 12 85°F

Wind History for Shell Beach, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans Naval Air Station - Alvin Callender Field, LA4 mi42 minSW 710.00 miMostly Cloudy81°F77°F88%1016.9 hPa
New Orleans, New Orleans Lakefront Airport, LA18 mi44 minE 13 G 227.00 miLight Rain81°F73°F79%1017.3 hPa
New Orleans, New Orleans International Airport, LA19 mi44 minVar 610.00 miLight Rain80°F73°F82%1017.1 hPa

Link to 5 minute data for KNBG

Wind History from NBG (wind in knots)
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Last 24hrS3S4S10SW5SW4SW3CalmS4SW5S3CalmCalmCalmCalmS4CalmCalmSW44E6S12SW16SW6SW7
1 day agoCalmSE6SW6SW3SW5SW3SW3S3SW3CalmCalmCalmCalmCalmCalmCalmCalmSW4SW7W9W6SW9S5SW16
G24
2 days agoE5E5SE5SE4CalmSW3CalmCalmCalmCalmSW3CalmCalmCalmCalmCalmCalmNW43NW3SE3SW115W3

Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Mon -- 04:14 AM CDT     0.56 feet Low Tide
Mon -- 06:29 AM CDT     Sunrise
Mon -- 09:56 AM CDT     Moonset
Mon -- 06:48 PM CDT     0.95 feet High Tide
Mon -- 07:36 PM CDT     Sunset
Mon -- 10:14 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.60.60.60.60.60.60.60.70.70.70.70.70.80.80.90.90.90.90.90.90.90.8

Tide / Current Tables for Shell Beach, Lake Borgne, Louisiana
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Shell Beach
Click for Map
Mon -- 03:16 AM CDT     0.66 feet Low Tide
Mon -- 06:28 AM CDT     Sunrise
Mon -- 09:55 AM CDT     Moonset
Mon -- 06:01 PM CDT     1.12 feet High Tide
Mon -- 07:35 PM CDT     Sunset
Mon -- 10:13 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.70.70.70.70.70.70.80.80.80.80.80.90.9111.11.11.11.11.1110.9

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.
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.