Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Lacombe, LA

Version 3.4
What's New / NOTES
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 5:57AMSunset 8:06PM Saturday June 24, 2017 6:59 PM CDT (23:59 UTC) Moonrise 5:38AMMoonset 7:47PM Illumination 1% Phase: New Moon; Moon at 1 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- 336 Pm Cdt Sat Jun 24 2017
Tonight..West winds near 5 knots becoming north after midnight. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers and Thunderstorms likely.
Sunday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Monday..East winds 10 to 15 knots. Waves 1 to 3 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Monday night..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Tuesday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Wednesday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms.
Thursday night..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 336 Pm Cdt Sat Jun 24 2017
Synopsis..A cold front will slowly move into the coastal waters Sunday. Surface high pressure will build in from the north and then northeast through midweek.

7 Day Forecast for Marine Location Near Lacombe, LA
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location: 30.25, -90.04     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 242101
afdlix
area forecast discussion
national weather service new orleans la
401 pm cdt Sat jun 24 2017

Synopsis
Latest surface analysis showed a frontal zone from the mid-
atlantic states to northern georgia to southern mississippi to
hill country of texas. Showers and thunderstorms have developed
around and west of lake pontchartrain. Upper air analysis showed a
broad trough over central and northeast conus, high over
southwest CONUS and florida, and inverted trough over west gulf.

So close to col, storm motion on vad wind profile was variable
less than 10 knots 1k to 13kft. However, storms were drifting
northeast. Precipitable water values on a planer view showed a
moisture axis of 2.1 to 2.2 inches from northern georgia to
forecast area to east texas.

Discussion
Scattered to numerous showers and thunderstorms along and south of
the frontal zone will maintain the threat of flooding rains
through this evening. While short range models show dissipation by
02z, will keep flash flood watch to midnight. Upper level trough
over northern tier will shift east and allow northwest winds
through Sunday. Moisture axis will sag south through Sunday.

Frontal zone will press south to the coastal waters by Sunday
afternoon. However, mean relative humidity and precipitable water
value will remain elevated through Sunday afternoon and evening.

Surface high will build over the mid mississippi valley but flow
aloft will remain weak and mean relative humidity values remain
elevated across the south half of the area on Monday. Will
maintain below norm rain chances across the north and near norm
along the coast early Monday. Dry air will slowly push south
pushing convection over the coastal waters Monday afternoon and
Monday night. These moisture field will stationary through
Tuesday night. Ergo, rain chances will be limited to nil on
Tuesday. Surface high will finally slide east with return flow and
moisture on Wednesday. Rain chances will creep back into the
forecast on Wednesday and a good chance of rain by Thursday and
Friday.

Aviation
MVFR andVFR clouds with fl015-025 ceilings will persist this
afternoon outside of convection. Scattered to numerous showers and
thunderstorms have develop along a line from kmsy to kbtr. The kmsy
activity is moving south and decaying. The kbtr storms are moving
northeast and strengthening. Frequent lightning and heavy rainfall
will accompany most storms today. Convection should be on a
diminishing trend within the next couple hours. Likely to be a
period ofVFR conditions this evening before MVFR ceilings return
after 06z.

Meffer

Marine
The wind pattern over the coastal waters is quite light as a cold
front approaches the coastal waters from the north today. This will
allow residual swells to continue to relax. Moving into Sunday, that
cold front will gradually sag into the offshore waters. This will
bring winds around from southerly to northeasterly. Wind speeds will
increase to right at the cusp of exercise caution, 15kts, Sunday
night into Monday as the pressure gradient tightens. Over the
following 2 to 3 days, winds will remain elevated as an upper trough
to the north moves from west to east. This will keep surface high
pressure building in form the north.

Meffer

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: monitoring hydro convective trends
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 72 84 67 85 50 60 20 10
btr 73 85 70 85 50 70 20 10
asd 75 85 71 85 50 60 20 20
msy 76 85 74 83 50 70 50 20
gpt 75 85 72 84 50 60 20 20
pql 74 85 71 84 50 60 20 20

Lix watches warnings advisories
La... Flash flood watch until midnight cdt tonight for laz034>037-039-
040-046>050-056>072.

Gm... None.

Ms... Flash flood watch until midnight cdt tonight for msz068>071-077-
080>082.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 16 mi42 min NNW 1.9 G 2.9 80°F 83°F1017.2 hPa
CARL1 22 mi42 min 81°F
FREL1 23 mi42 min N 6 G 8 77°F 1016.4 hPa
OSTF1 - Stennis Test Facility 24 mi70 min SW 1.9 G 3.9 79°F 1017.9 hPa (+0.7)72°F
SHBL1 - 8761305 - Shell Beach, LA 33 mi42 min NW 4.1 G 6 79°F 86°F1017.7 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 38 mi42 min SW 6 G 7 76°F 82°F1016.9 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 38 mi42 min WNW 4.1 G 5.1 78°F 87°F1017.9 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Last
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S8
G12
S10
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S7
G11
SW9
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S5
G8
SW4
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G12
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G11
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1 day
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S12
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G22
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G17
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G20
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G19
S10
G17
SW15
G22
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G18
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2 days
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SE5
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G14
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G17
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G20
S8
G15
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G14
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G11
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G18
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G10
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G21
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G29
S19
G25
S14
G27
S15
G22
SW17
G26
S15
G25
SW17
G26
SW12
G19
SW13
G21

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA14 mi67 minN 010.00 miLight Rain76°F73°F91%1017.2 hPa
New Orleans, New Orleans Lakefront Airport, LA15 mi67 minNNW 910.00 miMostly Cloudy81°F75°F85%1016.9 hPa
New Orleans, New Orleans International Airport, LA22 mi67 minNNE 410.00 miLight Rain78°F75°F90%1017.8 hPa

Wind History from ASD (wind in knots)
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Last 24hrCalmS8S5S7S4S4SW3S3SW4SW43SW4SW6N43NW644CalmNE4E4NW73Calm
1 day agoS10
G16
S8S6S9S12
G19
S12
G21
S14
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S13S16
G20
S12S11S13S12S10S14
G20
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S14S12
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S14S14S10S11
G16
S7
2 days agoSE11
G24
SE11
G19
SE11
G18
SE9
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--SE12
G19
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S10S10SE11S15
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Tide / Current Tables for Tchefuncta River, Lake Pontchartrain, Louisiana
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Tchefuncta River
Click for Map
Sat -- 05:59 AM CDT     Sunrise
Sat -- 06:38 AM CDT     Moonrise
Sat -- 07:30 AM CDT     -0.25 feet Low Tide
Sat -- 08:06 PM CDT     Sunset
Sat -- 08:33 PM CDT     0.80 feet High Tide
Sat -- 08:47 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.40.20.1-0-0.1-0.2-0.2-0.2-0.2-0.1-00.10.20.30.40.50.60.70.80.80.80.80.7

Tide / Current Tables for Bayou BonFouca, Route 433, Louisiana
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Bayou BonFouca
Click for Map
Sat -- 05:58 AM CDT     Sunrise
Sat -- 06:37 AM CDT     Moonrise
Sat -- 06:40 AM CDT     -0.22 feet Low Tide
Sat -- 08:04 PM CDT     Sunset
Sat -- 08:09 PM CDT     0.71 feet High Tide
Sat -- 08:45 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.20.1-0-0.1-0.2-0.2-0.2-0.2-0.1-0.100.10.20.30.40.50.60.60.70.70.70.70.6

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 (19,4,5,8)
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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.