Monday, February19, 2018 L-36.com


Marine Weather and Tides
Chalmette, LA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:33AMSunset 5:53PM Monday February 19, 2018 1:54 PM CST (19:54 UTC) Moonrise 9:59AMMoonset 10:34PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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- 927 Am Cst Mon Feb 19 2018
Rest of today..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers.
Tonight..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Tuesday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers.
Tuesday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers.
Wednesday..Southeast winds 10 to 15 knots. Waves 1 to 3 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..Southeast winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers.
Thursday..Southeast winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Thursday night..Southeast winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Slight chance of showers.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 927 Am Cst Mon Feb 19 2018
Synopsis..The next cold front will begin to approach the area by the middle of this week before stalling well north of the coast. A cold front will move to the coast by the weekend.

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 191745
afdlix
area forecast discussion
national weather service new orleans la
1145 am cst Mon feb 19 2018

Aviation
Clouds should continue to break up this afternoon. Winds will be
slightly elevated today and tomorrow as onshore flow continues.

ExpectVFR conditions to prevail this afternoon into the evening.

Tonight expect status and patchy fog to develop again. Expect MVFR
to periods of ifr conditions possible tonight into Tuesday
morning. 13 mh

Prev discussion issued 419 am cst Mon feb 19 2018
short term... An upper level ridge centered east of the bahamas
will strengthen while slowly moving northwest towards the carolina
coastlines through Tuesday. Surface high pressure that is offset to
the east of the upper ridge expands all the way to the western gulf
of mexico. Clockwise flow around this high will keep local winds
onshore and moisture levels high. A few showers may develop this
afternoon with daytime heating. Coverage and intensities should be
minimal. Oriented pops to be similar to a blend of the GFS and hrrr.

Meanwhile, near record high temperatures will persist. Blended
models continue to be too cold for fcst highs, so went closer to the
mav mex. Tuesday will be similar to today with a slight uptick in
shower coverage as an upper trough west of the rockies nudges east.

Long term...

rain chances will increase considerably Wednesday through Thursday
as a shortwave from the main upper trough to the west moves through
the central plains and brings a cold front towards the area. This
boundary is expected to stall across east texas and northern
louisiana. Showers and storms will develop on both sides of the
boundary, decreasing in coverage farther away from the centerline of
the front. This means there will be much higher rain chances in
northwestern zones of the CWA compared to southeastern ones. Didn't
make many changes from the previous forecast during the Wed Thu time
frame.

The upper ridge to the east will build back slightly across the
region Friday through Saturday morning. This will reduce rain
chances back to around 20 percent.

The main upper trough to the west will finally lift northeast and
race across the midsection of the country this weekend. This will
send a weaker front through the forecast area early Sunday. A few
showers and thunderstorms should accompany the boundary.

Meffer
marine...

patchy fog may be encountered near and along colder water areas such
as nearshore waters and especially the mississippi river. But for
the most part, winds speeds are rising which is helping to lift this
fog layer into a low stratus deck. While in the miss river, the wind
is causing fog to pack into river bends and turns as well as pushing
it over the levee systems. The next cold front will move toward the
coast and stall well north of the coastal waters Wednesday before
moving back to the northwest, then stalling once again over the
central plains states. This will simply help maintain the onshore
flow through the week. This stalled front will finally start moving
south again by Saturday morning reaching the gulf coast by Sunday
before possibly stalling again.

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.

Yellow = heightened impacts with short-fused watch, warning or
advisory issuances; radar support.

Orange = high impacts; slight to moderate risk severe; nearby
tropical events; hazmat or other large episodes.

Red = full engagement for moderate risk of severe and or direct
tropical threats; events of national significance.

Preliminary point temps pops
Mcb 83 65 83 67 20 10 30 20
btr 85 65 84 67 10 10 30 10
asd 83 65 82 67 20 10 30 20
msy 82 67 84 68 20 10 30 20
gpt 78 64 79 67 20 10 30 30
pql 80 63 80 67 20 10 30 30

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 mi54 min SSE 8.9 G 16 80°F 65°F1020 hPa (-1.8)
CARL1 12 mi54 min 46°F
SHBL1 - 8761305 - Shell Beach, LA 16 mi54 min SE 17 G 22 77°F 74°F1020.6 hPa (-1.8)
FREL1 27 mi54 min SSE 15 G 19 78°F 1018.9 hPa (-1.9)65°F
BYGL1 - 8762482 - Bayou Gauche, LA 30 mi54 min SSE 11 G 19 80°F 72°F1019.9 hPa (-1.8)
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 39 mi54 min SE 15 G 18 72°F 70°F1021.3 hPa (-1.7)

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 mi61 minSSE 13 G 2210.00 miMostly Cloudy81°F64°F58%1019.6 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA13 mi59 minS 13 G 2110.00 miMostly Cloudy80°F66°F64%1020 hPa
New Orleans, New Orleans International Airport, LA17 mi61 minS 1710.00 miPartly Cloudy82°F68°F63%1020.2 hPa

Wind History from NEW (wind in knots)
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Last 24hrNE8NE5SE10SE10S10SE9SE9SE5SE8SE9SE9SE9SE6SE5SE5SE5SE6SE4SE7E6SE9SE13SE13SE13
G22
1 day agoSW15
G22
N4Calm--W4SW7SW12SW10SW9SW7SW6SW5SW5SW6SW6N4NE5E4E5E6NE5N5N9N7
2 days agoN4NW6W8W6W4SW11SW10SW8SW8SW9SW11W5SW6SW8SW6SW5SW3CalmS8S8SW16
G21
SW16SW15SW15

Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Mon -- 05:28 AM CST     0.47 feet High Tide
Mon -- 06:35 AM CST     Sunrise
Mon -- 08:59 AM CST     Moonrise
Mon -- 02:44 PM CST     0.15 feet Low Tide
Mon -- 05:51 PM CST     Sunset
Mon -- 08:04 PM CST     0.27 feet High Tide
Mon -- 09:34 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.30.40.40.40.50.50.40.40.40.30.30.20.20.20.10.20.20.20.30.30.30.30.2

Tide / Current Tables for Chef Menteur, Chef Menteur Pass, Louisiana
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Chef Menteur
Click for Map
Mon -- 05:01 AM CST     0.36 feet High Tide
Mon -- 06:35 AM CST     Sunrise
Mon -- 08:58 AM CST     Moonrise
Mon -- 12:53 PM CST     0.01 feet Low Tide
Mon -- 05:50 PM CST     Sunset
Mon -- 07:12 PM CST     0.18 feet High Tide
Mon -- 09:33 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.30.30.30.40.40.30.30.20.10.10000.10.10.10.20.20.20.20.10.1

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for New Orleans/Baton Rouge, LA (14,3,4,5)
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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.