Wednesday, June20, 2018 L-36.com


Marine Weather and Tides
Mandeville, LA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:56AMSunset 8:05PM Wednesday June 20, 2018 8:34 AM CDT (13:34 UTC) Moonrise 12:18PMMoonset 12:11AM Illumination 46% Phase: First Quarter Moon; Moon at 7 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- 420 Am Cdt Wed Jun 20 2018
Today..South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tonight..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Thursday..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the afternoon.
Thursday night..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Friday..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday night..Southwest winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Saturday..Southwest winds near 10 knots. Waves 2 feet. Dominant period 4 seconds.
Saturday night..Southwest winds near 10 knots. Waves 2 feet. Dominant period 4 seconds.
Sunday..South winds 5 to 10 knots. Waves 1 to 2 feet. Slight chance of showers and Thunderstorms in the afternoon.
Sunday night..Southwest winds 5 to 10 knots. Waves 1 to 2 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 420 Am Cdt Wed Jun 20 2018
Synopsis..A ridge of high pressure will prevail across the coastal waters through the weekend.

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


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 200845
afdlix
area forecast discussion
national weather service new orleans la
345 am cdt Wed jun 20 2018

Short term
Satellite imagery shows an upper ridge spreading westward across the
eastern gulf of mexico. Although subsidence will moving into the cwa
from the gulf, still will have enough moisture in place and daytime
heating to produce a few showers and thunderstorms. Expect more
farther inland and little to none in the coastal areas.

An upper level trough will move across the central plains today and
into the mid upper mississippi valley Thursday. This will cause the
ridge over the gulf to retreat slightly. A gradient in convective
coverage will likely exist with highest pops in northern forecast
zones and lowest along the coastline. Have increased pops to near
60% in SW mississippi with 30% or less from new orleans southward.

Long term
The aforementioned upper low will lift northeast ending this week,
thus allowing the ridge over the gulf to spread north over the
region this weekend. Subsequently, rain chances will drop quite a
bit and temps should be on the rise. Kept previous pops of 20% and
slightly increased high temps into the lower 90s.

Aviation
Some tempo MVFR ceilings possible this and Thursday morning but all
sites should be inVFR conditions for most of this TAF cycle. There
will still be a lower chance of a TS today but chances are too low
to show in any one TAF set.

Marine
Pressure gradient continues to weaken further and winds are
responding as they drop to around 10 knots for most areas with a few
still registering from 10-15kt. Seas will also stay at 3 feet or
less through the remainder of the week.

Decision support
Dss code: green.

Deployed: none.

Activation: none.

Activities: none.

Preliminary point temps pops
Mcb 89 73 85 72 30 20 60 20
btr 89 74 86 73 30 20 50 20
asd 90 77 88 76 20 20 30 20
msy 90 77 89 76 20 20 30 10
gpt 89 78 87 76 20 20 20 20
pql 90 76 88 75 20 20 30 20

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 21 mi47 min Calm G 2.9 84°F1014.6 hPa
FREL1 24 mi47 min S 1.9 G 2.9 1013.8 hPa
CARL1 28 mi47 min 83°F
SHBL1 - 8761305 - Shell Beach, LA 39 mi47 min ESE 5.1 G 6 81°F 86°F1014.9 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 40 mi47 min NE 5.1 G 6 79°F 84°F1015 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 41 mi47 min ESE 1 G 1.9 84°F1014.8 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA14 mi42 minENE 310.00 miFair78°F75°F90%1014.8 hPa
New Orleans, New Orleans Lakefront Airport, LA20 mi42 minSE 610.00 miFair81°F75°F85%1014.2 hPa
Hammond, Hammond Municipal Airport, LA22 mi40 minN 010.00 miFair79°F75°F89%1014.9 hPa

Wind History from ASD (wind in knots)
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Last 24hrCalmE7E5E7SE7E8SE8SE9SE6SE6SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3
1 day agoSE8SE5SE4SE4SE433N3SW3N4N6N4CalmCalmCalmCalmCalmN3N3CalmCalmNE3NE3E3
2 days agoSE11SE13
G22
S10S9SE11
G20
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SE9SE11SE8SE4CalmN3CalmCalmNE3CalmNE3E3SE4E3SE4NE3

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
Wed -- 01:11 AM CDT     Moonset
Wed -- 05:52 AM CDT     First Quarter
Wed -- 05:58 AM CDT     Sunrise
Wed -- 11:54 AM CDT     0.10 feet Low Tide
Wed -- 01:18 PM CDT     Moonrise
Wed -- 08:05 PM CDT     Sunset
Wed -- 09:40 PM CDT     0.38 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.50.40.40.40.30.30.20.20.10.10.10.10.10.20.20.30.30.30.40.40.40.4

Tide / Current Tables for Bayou BonFouca, Route 433, Louisiana
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Bayou BonFouca
Click for Map
Wed -- 01:09 AM CDT     Moonset
Wed -- 05:52 AM CDT     First Quarter
Wed -- 05:57 AM CDT     Sunrise
Wed -- 11:04 AM CDT     0.09 feet Low Tide
Wed -- 01:16 PM CDT     Moonrise
Wed -- 08:03 PM CDT     Sunset
Wed -- 09:16 PM CDT     0.34 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.40.40.30.30.20.20.20.10.10.10.10.10.10.20.20.30.30.30.30.30.30.3

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 (9,2,3,4)
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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.