Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Chalmette, 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 6:46AMSunset 6:59PM Saturday September 21, 2019 12:27 AM CDT (05:27 UTC) Moonrise 12:00AMMoonset 1:26PM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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- 949 Pm Cdt Fri Sep 20 2019
.small craft exercise caution in effect through Saturday evening...
Rest of tonight..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Saturday..East winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Slight chance of Thunderstorms early in the afternoon. Slight chance of showers in the afternoon.
Saturday night..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Sunday..Southeast winds 10 to 15 knots. Waves 1 to 3 feet. Dominant period 4 seconds. Slight chance of showers through the day.
Sunday night..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Monday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Monday night..South winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Tuesday..Northwest winds 5 to 10 knots becoming south late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Tuesday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Wednesday..West winds near 5 knots becoming southeast in the late morning and afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Wednesday night..South winds 5 to 10 knots. Waves 1 foot or less.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 949 Pm Cdt Fri Sep 20 2019
Synopsis..A ridge of high pressure will prevail over the coastal waters into next week.


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 210457
afdlix
area forecast discussion
national weather service new orleans la
1157 pm cdt Fri sep 20 2019

Aviation
Vfr cavok conditions at all terminals though breezy easterly winds
may have daytime gustiness running close to 20-23kt with thermal
mixing, particularly those influenced by marine proximity.

Gustiness should abate with sunset with some possible advection of
few-sct marine layer stratocumulus deck later in the evening
hours. 24 rr

Prev discussion issued 353 pm cdt Fri sep 20 2019
discussion...

upper level ridge extends for most of the southern CONUS through
the atlantic with a surface high just off the coast of the eastern
coast around virginia to georgia. Drier air moving in from the
east has lowered pw values to around 1.5 inches for a good portion
of inland southeast louisiana and southern mississippi. As a
result, heat indices today were lower today and should generally
be less humid through the weekend. Temperatures, on the other
hand, will likely stay right in the 90s through this weekend and
into next week. The area will continue to be under a weaker ridge
through next week. -bl
aviation...

vfr category conditions will generally prevail at the terminals
during the TAF forecast period. Isolated to scattered convection
this afternoon could impact any of the terminals, with kgpt having
the least chance. The convection should mostly dissipate after
sunset. Easterly wind flow will prevail especially for TAF sites
near the coast. 18
marine...

strong easterly winds will affect the coastal waters through the
majority of the weekend. Because of this a small craft advisory
has been issued for the coastal waters and small craft exercise
caution for the tidal lakes. One or both may need an extension
with the eastern half of the coastal waters the most likely.

Additionally, due to the easterly flow and high tides some coastal
flooding may be possible for eastern coasts. Currently opted out
of any coastal flood advisories but that will need to be watched.

After this weekend, winds will subside and high pressure will
prevail through next week. -bl
decision support...

dss code: blue.

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 68 89 67 91 10 20 10 10
btr 71 90 71 91 20 20 10 10
asd 71 89 70 90 10 20 10 10
msy 77 87 76 90 10 20 10 20
gpt 73 87 72 88 10 20 10 10
pql 71 89 70 90 10 10 0 10

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 7 pm cdt Saturday for gmz532-536-538-
550-552-555-557-570-572-575-577.

Ms... None.

Gm... Small craft advisory until 7 pm cdt Saturday for gmz536-538-550-
552-555-557-570-572-575-577.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 10 mi58 min ESE 1.9 G 6 79°F 85°F1019.1 hPa
CARL1 12 mi58 min 85°F
SHBL1 - 8761305 - Shell Beach, LA 16 mi58 min E 9.9 G 12 81°F 86°F1020 hPa
FREL1 27 mi58 min ESE 11 G 14 82°F 1019.2 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 30 mi58 min E 1.9 G 2.9 77°F 85°F1019.8 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 39 mi58 min SE 15 G 19 83°F 83°F1020.5 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 mi35 minESE 910.00 miFair81°F70°F69%1019.1 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA13 mi33 minENE 610.00 miFair77°F73°F90%1019.3 hPa
New Orleans, New Orleans International Airport, LA17 mi35 minE 510.00 miPartly Cloudy80°F70°F71%1019.9 hPa

Link to 5 minute data for KNEW

Wind History from NEW (wind in knots)
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Last 24hrE18
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1 day agoCalmE3E3E7E6E8E5E4E3E4SE6SE6E9S7SE9SE10SE10SE8SE10SE10SE8SE8SE11E9
2 days agoSW3SW4CalmSW4CalmCalmSE3SE3SE3E3NE5N6N7NE9E6SE7SE8NW7NW4NW9NW3W3W3Calm

Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Sat -- 06:47 AM CDT     Sunrise
Sat -- 07:58 AM CDT     1.40 feet High Tide
Sat -- 01:26 PM CDT     Moonset
Sat -- 06:57 PM CDT     Sunset
Sat -- 08:29 PM CDT     0.23 feet Low Tide
Sat -- 09:43 PM CDT     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.80.911.11.21.31.41.41.41.31.21.110.90.70.60.40.30.30.20.20.30.4

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 (1,6,7,8)
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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.