Friday, August23, 2019 L-36.com


Marine Weather and Tides
Chalmette, 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 6:30AMSunset 7:34PM Friday August 23, 2019 5:12 PM CDT (22:12 UTC) Moonrise 12:00AMMoonset 1:36PM Illumination 41% Phase: Third Quarter Moon; Moon at 23 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- 323 Pm Cdt Fri Aug 23 2019
Tonight..Southeast winds near 5 knots becoming east after midnight. Waves less than 1 foot. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday..Northeast winds near 5 knots becoming south late in the afternoon. 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.
Saturday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday..West winds near 5 knots becoming south in the late morning and afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms in the afternoon.
Sunday night..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers and Thunderstorms likely in the morning, then showers and Thunderstorms in the afternoon.
Monday night..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..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.
Tuesday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms after midnight.
Wednesday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..Northwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 323 Pm Cdt Fri Aug 23 2019
Synopsis.. Weak extension of bermuda high pressure area across the northeast gulf of mexico will persist through the weekend. An unsettled pattern will provide periods of Thunderstorms over the coastal waters through Tuesday.


7 Day Forecast for Marine Location Near Chalmette, LA
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location: 30, -89.93     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 232109
afdlix
area forecast discussion
national weather service new orleans la
409 pm cdt Fri aug 23 2019

Short term
More rain is expected across the region this weekend. A broad
low over northwest gulf of mexico will continue to move north
bringing deep tropical moisture over the area. That is moving
north. This has already brought a surge of deep tropical moisture
into southeast louisiana and south mississippi with precipitable
water (pw) values running in the 2 to 2.3 inch range. This
moisture will remain in place through the weekend and into Monday.

The weather prediction center maintains a marginal risk of
excessive rainfall along the coast this evening. For Saturday, a
small portion of the coast will be in a slight risk of excessive
rainfall and other areas in a marginal risk. Heavy rainfall will
be possible with any convection over the next few days. The
potential for banded storms and training storms over areas that
have saturated soils pose a greater risk for flash flooding. A
shortwave will be moving southeast from the central and southern
plains into the lower mississippi valley Sunday and this should
help pull this disturbance over the immediate forecast area. This
will maintain deep tropical moisture and a favorable environment
for fairly widespread rainfall and a threat of locally heavy
rainfall. The entire forecast area is in a marginal risk of
excessive rainfall on Sunday and Sunday night. We will have to
watch to see if the risk areas are updated or expanded for Sunday,
and also will have to watch to see if they could be extended into
Monday especially across the eastern portions of the area.

Long term
A wet pattern continues into next week. Afternoon convection will
continue each day. A frontal boundary will start to approach the
region from the north. This should serve to trigger more
convection during this time period. Guidance suggests that the
boundary will get through the area. We will have to monitor the
forecast for changes. Just expect temperatures to not be as hot
with increased rain chances.

Aviation
Expect showers to diminish over the next few hours across the
area. Expect mostly MVFR toVFR conditions to prevail overnight
into Saturday. Afternoon convection will once again play a role in
the forecast as more widespread coverage for Saturday is
expected.

Marine
No significant changes to the forecast this afternoon which is
basically light onshore winds and low seas outside of convection.

The air mass will become increasingly more conducive for tropical
funnel and waterspout formation in the near shore waters, near
shore marshes and tidal lakes bays through the weekend. Expect
nocturnal convection each night over the waters through next week.

Decision support
Dss code: yellow.

Deployed: none.

Activation: none.

Activities: marginal risk excessive rainfall Sunday.

Marginal to slight risk Saturday.

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 88 72 88 20 70 40 80
btr 74 88 74 88 20 70 40 80
asd 73 90 73 89 20 70 40 80
msy 77 89 77 89 20 70 40 80
gpt 74 89 74 88 20 70 40 80
pql 73 92 74 91 20 70 40 80

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
NWCL1 - 8761927 - New Canal, LA 10 mi60 min S 4.1 G 7 85°F 87°F1014.1 hPa
CARL1 12 mi54 min 88°F
SHBL1 - 8761305 - Shell Beach, LA 16 mi60 min SSE 4.1 G 6 85°F 88°F1015.1 hPa
FREL1 27 mi54 min ESE 2.9 G 4.1 84°F 1013.9 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 30 mi60 min SW 1.9 G 5.1 85°F 87°F1015.1 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 39 mi60 min S 8 G 12 85°F 87°F1015 hPa

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA6 mi79 minS 410.00 miMostly Cloudy86°F73°F65%1014 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA13 mi77 minVar 410.00 miMostly Cloudy85°F75°F75%1014.6 hPa
New Orleans, New Orleans International Airport, LA17 mi79 minSSW 510.00 miMostly Cloudy86°F75°F70%1015 hPa

Link to 5 minute data for KNEW

Wind History from NEW (wind in knots)
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Last 24hr----S14--------------Calm--S8E3--SE5--S7SW3S3--5S4S7
1 day agoCalmNE3SE5SE7----SE3----------SE4CalmCalmNE4----NE10NE11E7E6E9SE9
2 days agoSW5SW10SW9----SW5------------S5S5----W6S6CalmCalmS3--SE5Calm

Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Fri -- 06:31 AM CDT     Sunrise
Fri -- 09:21 AM CDT     1.17 feet High Tide
Fri -- 09:58 AM CDT     Last Quarter
Fri -- 01:36 PM CDT     Moonset
Fri -- 07:32 PM CDT     Sunset
Fri -- 09:23 PM CDT     0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.70.70.80.90.911.11.11.21.21.11.110.90.80.70.60.50.40.40.30.30.4

Tide / Current Tables for Shell Beach, Lake Borgne, Louisiana
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Shell Beach
Click for Map
Fri -- 06:30 AM CDT     Sunrise
Fri -- 08:34 AM CDT     1.38 feet High Tide
Fri -- 09:58 AM CDT     Last Quarter
Fri -- 01:34 PM CDT     Moonset
Fri -- 07:31 PM CDT     Sunset
Fri -- 08:25 PM CDT     0.40 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.911.11.21.31.31.41.41.31.31.21.110.80.70.60.50.40.40.40.40.5

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 (18,4,5,8)
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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.