Tuesday, April24, 2018 L-36.com


Marine Weather and Tides
Metairie, LA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:22AMSunset 7:35PM Tuesday April 24, 2018 7:29 AM CDT (12:29 UTC) Moonrise 1:27PMMoonset 2:07AM Illumination 67% Phase: Waxing Gibbous; Moon at 9 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 340 Am Cdt Tue Apr 24 2018
Today..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Tonight..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday..Northwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday night..Northwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of light rain after midnight.
Thursday..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Thursday night..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of light rain.
Friday night..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday..North winds 10 to 15 knots. Waves 1 to 2 feet.
Saturday night..North winds 5 to 10 knots becoming east in the late evening. Waves 1 to 2 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 340 Am Cdt Tue Apr 24 2018
Synopsis..High pressure will be in control of the coastal waters through Wednesday. A cold front should slide through the coastal waters on Thursday. Another front should then push through the region on Friday. High pressure will then build back in for the weekend.

7 Day Forecast for Marine Location Near Metairie, LA
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location: 30.03, -90.11     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 240904
afdlix
area forecast discussion
national weather service new orleans la
404 am cdt Tue apr 24 2018

Short term
Upper trough will be slow to move east over the next few days.

Meanwhile a few short waves will move down the back side of the
long wave trough bringing sh TS to the southeast conus. The first
is currenlty over the western dakotas. This will begin to move
south and strengthen with time. With the long wave trough slow to
move, it keeps our area in a northwest flow regime and sometimes
these small systems that move through can be aggressive and
illusive in this pattern. As this system moves through Wed night
into Thursday, dry ridging begins to build over the southern end
of the cold front that is associated, causing a good bit of
stability and decaying sh TS as they move into the area early
Thursday. If there is any strong or severe weather associated with
this, most would be north of the area with a possible skirting of
the northern tier of our counties parishes. But at the moment, we
will maintain wording of chance of showers with isolated
thunderstorms for Wed night and Thursday until a better
examination of this short wave can be made once it deepens a bit.

The next system moves through Friday night into Saturday with the
same thing occurring to it as well. But most if not all sh ts
could dissipate as they move into the area as stability rapidly
increases over the front. Moisture return with a normal
distribution of sh TS will begin to occur by the start of next
week.

Aviation
Vfr conditions are expected through the entire forecast period for
the majority of the termanals. Some light fog may develop at kmcb
around 12z tomorrow. This could push visibilities into MVFR range
at this terminal. Otherwise, no significant impacts to aviation are
expected through tomorrow morning. 32

Marine
A persistent offshore wind is expected through the weekend as a
series of weak fronts slides through the coastal waters. Winds will
generally range from 10 to 15 knots through the weekend. However, a
brief period of winds in the 15 to 20 knot range could occur Friday
night into Saturday morning in the wake of a stronger frontal
passage. Seas should generally range from 1 to 2 feet in the sounds
and lakes, and 2 to 4 feet in the open gulf waters. 32

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: sandhill crane nwr outreach support
new orleans navy week support
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; direct tropical threats; events of
national significance.

Preliminary point temps pops
Mcb 74 55 77 58 0 0 10 40
btr 78 57 80 60 0 0 10 40
asd 77 58 79 61 0 0 0 20
msy 77 62 79 63 0 0 0 10
gpt 77 60 78 62 0 0 0 10
pql 76 58 78 61 0 0 0 10

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 0 mi42 min W 5.1 G 8 65°F 69°F1016.2 hPa
CARL1 7 mi42 min 58°F
FREL1 17 mi42 min W 2.9 G 4.1 59°F 1015.3 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 23 mi42 min Calm G 2.9 59°F 72°F1016.6 hPa
SHBL1 - 8761305 - Shell Beach, LA 26 mi42 min WNW 8.9 G 9.9 64°F 72°F1016.1 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 46 mi42 min W 7 G 8.9 59°F 67°F1015.8 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Last
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W6
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G11
NW6
G10
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G15
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SE6
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G24
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G19
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E4
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G11
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G8

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA4 mi37 minW 1010.00 miFair65°F55°F73%1015.7 hPa
New Orleans, New Orleans International Airport, LA8 mi37 minW 55.00 miFog/Mist60°F57°F90%1016.7 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA15 mi35 minN 07.00 miPartly Cloudy55°F55°F100%1016.2 hPa

Wind History from MSY (wind in knots)
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Last 24hrW8W11W9W13
G16
NW12
G20
W12W13
G21
W13W10
G18
W10N7N7N6N5N3N3CalmCalmS3S5SW3W4NW4W5
1 day agoSE10SE10SE13SW13
G28
SW17
G24
SW13
G20
SW14W16
G23
W17
G24
W15
G23
W12NW7NW6NW11NW13NW11
G17
NW9NW11
G20
NW9NW7NW8W7W4W3
2 days agoE5E8E9SE9
G15
SE12SE9SE11E7SE11S11SE13SE14
G20
SE14SE10SE12SE10SE9E9SE9SE9SE12SE9SE8SE8

Tide / Current Tables for New Canal USCG station, Lake Pontchartrain, Louisiana
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New Canal USCG station
Click for Map
Tue -- 12:24 AM CDT     0.38 feet High Tide
Tue -- 12:42 AM CDT     0.38 feet Low Tide
Tue -- 02:57 AM CDT     0.39 feet High Tide
Tue -- 03:07 AM CDT     Moonset
Tue -- 06:24 AM CDT     Sunrise
Tue -- 01:41 PM CDT     0.11 feet Low Tide
Tue -- 02:26 PM CDT     Moonrise
Tue -- 07:33 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.40.40.40.40.30.30.30.20.20.20.10.10.10.10.10.20.20.20.20.30.30.3

Tide / Current Tables for Michoud Substation, ICWW, Louisiana
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Michoud Substation
Click for Map
Tue -- 03:06 AM CDT     Moonset
Tue -- 06:23 AM CDT     Sunrise
Tue -- 08:51 AM CDT     0.02 feet Low Tide
Tue -- 02:26 PM CDT     Moonrise
Tue -- 07:32 PM CDT     Sunset
Tue -- 10:46 PM CDT     1.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.210.80.60.40.30.1000.10.10.30.40.60.70.8111.11.21.21.21.2

Weather Map and Satellite Images
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wmap_A
GOES 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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (8,2,3,4)
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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.