Monday, February19, 2018 L-36.com


Marine Weather and Tides
Lafitte, 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 6:34AMSunset 5:54PM Monday February 19, 2018 1:49 PM CST (19:49 UTC) Moonrise 9:00AMMoonset 9:35PM 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
    EDIT      (on/off)   Help
GMZ538 Chandeleur Sound-breton Sound- 927 Am Cst Mon Feb 19 2018
Rest of today..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers.
Tonight..Southeast winds 10 to 15 knots. Waves 2 to 4 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 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers.
Wednesday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers.
Thursday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Thursday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Friday night..Southeast winds 10 to 15 knots. Waves 2 to 4 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 Lafitte, LA
   Hourly   EDIT   Help
location: 29.54, -90.06     debug


Area Discussion for - New Orleans/Baton Rouge, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
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
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GISL1 - 8761724 - Grand Isle, LA 20 mi49 min SSE 6 G 11 77°F 70°F1020.5 hPa (-1.7)
BYGL1 - 8762482 - Bayou Gauche, LA 26 mi49 min SSE 11 G 19 80°F 72°F1019.9 hPa (-1.8)
CARL1 27 mi49 min 46°F
KXPY 30 mi34 min SE 11 79°F 70°F
SHBL1 - 8761305 - Shell Beach, LA 31 mi49 min SE 17 G 22 77°F 74°F1020.6 hPa (-1.8)
NWCL1 - 8761927 - New Canal, LA 34 mi49 min SSE 8.9 G 16 80°F 65°F1020 hPa (-1.8)
KDLP 40 mi34 min ENE 8 73°F 70°F
FREL1 44 mi49 min SSE 15 G 19 78°F 1018.9 hPa (-1.9)65°F
LOPL1 - Louisiana Offshore Oil Port, LA 45 mi59 min S 16 G 18 75°F 4 ft1020.1 hPa
PILL1 49 mi49 min SSE 13 G 17 77°F 46°F1020.6 hPa (-1.9)

Wind History for Grand Isle, LA
(wind in knots)    EDIT      (on/off)   Help
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
1
PM
Last
24hr
SE7
SE5
SE3
G6
SE4
G7
SE3
G6
SE4
G7
SE4
SE5
G8
SE6
G10
SE7
G11
SE6
SE6
G10
SE4
SE4
SE4
S4
SW3
SE1
SE3
SE3
G9
SE4
G7
SE6
G12
S7
G11
S6
G11
1 day
ago
SW8
G12
W9
G12
SW7
G11
SW5
G9
W7
G10
W5
G8
W4
W3
W3
W6
W5
S2
SW2
SW3
SW1
S3
S3
S3
SE2
E2
E3
E2
G5
SE3
G7
SE3
G6
2 days
ago
W9
G12
SW10
W10
G13
W6
G10
SW7
SW5
G8
W4
SW2
SW3
SW4
SW4
SW3
S2
--
S2
S3
SW4
SW3
SW4
SW4
G8
SW7
G11
SW11
G15
SW11
G15
SW8
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galliano, South Lafourche Airport, LA13 mi54 minSSE 13 G 1810.00 miOvercast79°F64°F61%1020.3 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA20 mi54 minS 13 G 2110.00 miMostly Cloudy80°F66°F64%1020 hPa

Wind History from GAO (wind in knots)
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
1
PM
2
PM
Last 24hrSE6SE8SE4SE4SE3CalmSE3SE3SE5SE3SE3SE6SE4CalmCalmCalmCalmSE3SE3SE6SE7S11
G15
SE9
G18
SE10
G17
1 day agoSW12SW12
G16
SW12SW12SW5SW5SW4SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3S6
2 days agoSW13
G16
SW10
G14
SW10SW8SW6SW5SW5S5CalmSW3S4S3SW5SW4SW4SW3CalmS5S6SW9SW12
G16
SW11SW13
G17
SW11

Tide / Current Tables for Manilla, Mississippi River Delta, Louisiana
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Manilla
Click for Map
Mon -- 02:07 AM CST     0.43 feet High Tide
Mon -- 06:35 AM CST     Sunrise
Mon -- 08:59 AM CST     Moonrise
Mon -- 11:59 AM CST     0.13 feet Low Tide
Mon -- 04:43 PM CST     0.24 feet High Tide
Mon -- 05:52 PM CST     Sunset
Mon -- 09:34 PM CST     Moonset
Mon -- 11:03 PM CST     0.20 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.40.40.40.40.30.30.20.20.20.10.10.10.20.20.20.20.20.20.20.20.20.2

Tide / Current Tables for Independence Island, Mississippi River Delta, Louisiana
   EDIT      (on/off)   Help   One Week of Data
Independence Island
Click for Map
Mon -- 02:04 AM CST     0.39 feet High Tide
Mon -- 06:35 AM CST     Sunrise
Mon -- 08:59 AM CST     Moonrise
Mon -- 10:45 AM CST     0.12 feet Low Tide
Mon -- 04:40 PM CST     0.22 feet High Tide
Mon -- 05:52 PM CST     Sunset
Mon -- 09:34 PM CST     Moonset
Mon -- 09:49 PM CST     0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.40.40.40.30.30.20.20.10.10.10.10.20.20.20.20.20.20.20.20.20.20.2

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 (14,3,4,5)
      (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.