Monday, September25, 2017 L-36.com


Marine Weather and Tides
Mandeville, 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 6:48AMSunset 6:52PM Monday September 25, 2017 12:10 PM CDT (17:10 UTC) Moonrise 10:43AMMoonset 9:41PM Illumination 25% Phase: Waxing Crescent; Moon at 5 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
    EDIT      (on/off)   Help
GMZ530 Lake Pontchartrain And Lake Maurepas- 1001 Am Cdt Mon Sep 25 2017
Rest of today..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tonight..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms through the night.
Tuesday..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..Southeast winds 5 to 10 knots becoming south after midnight, then becoming north after midnight. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the evening.
Wednesday..Northeast winds near 5 knots becoming east in the afternoon. Waves less than 1 foot. Dominant period 4 seconds.
Wednesday night..Southeast winds near 5 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Thursday..North winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Thursday night..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday night..Northeast winds 10 to 15 knots. Waves 2 to 4 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1001 Am Cdt Mon Sep 25 2017
Synopsis..A weak trough of low pressure over the north central gulf of mexico is expected to move towards the central gulf coast today while weakening. Otherwise, weak high pressure will build over the region tonight through Wednesday. A cold front is 0.expected to push through the coastal waters Thursday night into Friday.

7 Day Forecast for Marine Location Near Mandeville, LA
   Hourly   EDIT   Help
location: 30.33, -90.08     debug


Area Discussion for - New Orleans/Baton Rouge, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 klix 251310
afdlix
area forecast discussion
national weather service new orleans la
810 am cdt Mon sep 25 2017

Sounding discussion
The 12z sounding shows a moderately unstable airmass in place with
mid-level lapse rates of around 6.0c km and most unstable cape
values of around 700 j kg. There has been little change in the
amount of moisture available to work with as precipitable water
values remain near 1.70 inches. The lifted condensation and
freezing levels are also little changed from the 06z special
sounding indicating that the overall thermodynamic nature of the
atmosphere has changed little. The wind field continues to back
with height from a prevailing east wind in the mid-levels to a
northwest wind in the upper levels. Any storm motion should be
from east to west at around 15 to 20 knots today. The amount of
dry air aloft could support some dry air entrainment into any
deeper convective cells that develop, so locally strong wind gusts
could be a concern later today. 32

Preliminary point temps pops
Mcb 88 68 90 70 40 20 30 10
btr 88 70 90 71 40 20 30 10
asd 87 69 88 71 50 30 30 10
msy 86 74 88 75 50 30 40 20
gpt 85 71 88 73 50 30 30 10
pql 86 68 89 70 50 30 30 10

Lix watches warnings advisories
La... None.

Gm... None.

Ms... None.

Gm... None.

32


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 21 mi40 min ENE 14 G 16 79°F 82°F1013.1 hPa
FREL1 24 mi40 min NNE 7 G 9.9 81°F 1012.7 hPa72°F
OSTF1 - Stennis Test Facility 25 mi20 min SE 1.9 G 7.8 82°F 1013.9 hPa (+0.0)70°F
CARL1 28 mi40 min 80°F
SHBL1 - 8761305 - Shell Beach, LA 39 mi40 min NE 15 G 18 79°F 84°F1013.2 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 40 mi40 min E 8 G 11 80°F 82°F1013.7 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 41 mi40 min NE 2.9 G 7 82°F 84°F1013.3 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
Last
24hr
E8
G14
SE2
G7
E8
G14
NE15
E13
G19
SE2
G9
E5
G13
E5
G9
E6
G9
E2
G5
E13
G16
E6
G10
SE1
E5
G8
E8
G11
E3
NE9
NE7
NE10
NE13
NE12
NE11
NE11
NE14
1 day
ago
NE11
NE11
NE12
E11
G14
SE2
G6
E3
G6
SE2
G5
E2
G5
NE1
G4
--
NE15
E7
G10
SE1
E3
NE11
NE11
NE12
NE10
NE10
NE14
NE15
NE12
NE10
NE10
2 days
ago
NE7
NE8
NE7
NE7
NE7
E6
G10
SE1
SE2
SE2
SE1
NE5
--
SE1
E2
SE2
--
NE4
NE7
NE8
NE10
E11
NE9
NE10
NE10

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA14 mi17 minE 610.00 miA Few Clouds84°F69°F61%1013.1 hPa
New Orleans, New Orleans Lakefront Airport, LA20 mi17 minENE 1210.00 miMostly Cloudy84°F73°F70%1012.7 hPa
Hammond, Hammond Municipal Airport, LA22 mi35 minESE 710.00 miPartly Cloudy82°F66°F58%1013.9 hPa

Wind History from ASD (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last 24hrCalmCalmE10E9E6E3E3NE7CalmN5CalmCalmN3CalmCalmN4CalmN4CalmN3N5E7--E6
1 day agoNE5CalmS7------------------N4N3CalmCalmCalmN4N4NE4NE5NE5NE66
2 days ago------------------------------------------------

Tide / Current Tables for Tchefuncta River, Lake Pontchartrain, Louisiana
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tchefuncta River
Click for Map
Mon -- 06:50 AM CDT     Sunrise
Mon -- 11:17 AM CDT     0.74 feet High Tide
Mon -- 11:43 AM CDT     Moonrise
Mon -- 06:53 PM CDT     Sunset
Mon -- 10:41 PM CDT     Moonset
Mon -- 11:20 PM CDT     0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.40.40.50.50.50.60.60.70.70.70.70.70.70.60.60.50.50.40.40.30.30.3

Tide / Current Tables for Bayou BonFouca, Route 433, Louisiana
   EDIT      (on/off)   Help   One Week of Data
Bayou BonFouca
Click for Map
Mon -- 06:49 AM CDT     Sunrise
Mon -- 10:52 AM CDT     0.66 feet High Tide
Mon -- 11:41 AM CDT     Moonrise
Mon -- 06:51 PM CDT     Sunset
Mon -- 10:30 PM CDT     0.26 feet Low Tide
Mon -- 10:40 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.30.40.40.40.50.50.60.60.60.70.70.70.60.60.50.50.40.40.30.30.30.30.3

Weather Map and Satellite Images
       (on/off)   Help
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 (13,3,4,5)
      (on/off)   Help

Ground Weather Radar Station New Orleans/Baton Rouge, LA
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.