Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Eden Isle, 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 6:29AMSunset 5:01PM Tuesday November 21, 2017 4:15 AM CST (10:15 UTC) Moonrise 10:02AMMoonset 8:43PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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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GMZ534 Lake Borgne- 330 Am Cst Tue Nov 21 2017
Today..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Tonight..East winds 5 to 10 knots becoming north 15 knots after midnight. Waves 1 foot or less. Dominant period 4 seconds. Waves building to 3 to 4 feet. Dominant period 4 seconds after midnight.
Wednesday..North winds near 15 knots. Waves 3 to 4 feet. Dominant period 4 seconds.
Wednesday night..North winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds.
Thursday..North winds 10 to 15 knots. Waves 3 feet. Dominant period 4 seconds.
Thursday night..North winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Friday..North winds 5 to 10 knots becoming northwest late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Friday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Saturday..West winds 5 to 10 knots. Waves 1 foot or less.
Saturday night..North winds 10 to 15 knots. Waves 2 to 3 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 330 Am Cst Tue Nov 21 2017
Synopsis..A strong disturbance will move east today ahead of a cold front that will move through the northern gulf Wednesday evening. High pressure will slowly settle over the area through the end of the week.

7 Day Forecast for Marine Location Near Eden Isle, LA
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location: 30.22, -89.82     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 211011
afdlix
area forecast discussion
national weather service new orleans la
411 am cst Tue nov 21 2017

Discussion
The most impactful weather through the forecast period will be
occuring over the next 24 hours. A split flow trough pattern is
developing across the center of the country with the sharper portion
diving south from canada into the upper mississippi valley.

Amplification of both troughs will occur today which will send a
cold front across the CWA tonight. A slight shift in the timing of
this boundary suggested by models means that previous thinking that
rain will be limited to coastal waters simply won't be the case.

Radar already shows showers passing across the southern tier of
louisiana parishes with more off the coast of texas and moving
northeast. Its this second batch that meso and medium range models
show moving into the CWA from the southwest before the front gets
here. For this reason, have modified pops to attempt to capture this
solution. The result is generally 20% for most of the area today and
20-50% with higher pops in extreme SW CWA zones and less than 10% in
ne zones. This is through 06z as fast approaching front will shift
rain south after that. This FROPA will take the little warming that
will occur on today and bring temps back down to a good 5 to 10
degrees below normal for wed-fri.

The CWA will generally remain under troughing through the rest of
this week and through the weekend. This will be the case due to the
mid week trough's lack of progressiveness and a deep trough diving
out of canada into the eastern 1 4 of the CONUS this weekend.

Another frontal boundary will swing through Saturday evening,
reinforcing cooler temps. No rain expected with this boundary.

Meffer

Aviation
Ceilings should run bkn035+. Vis not expected to be restricted with
the exception of an area along and southwest of a line from btr to
hum with some light to moderate rain after dark. New front moves
through Wed morning with clearing. East winds become north today and
remain that way ahead of and behind the front but elevated speeds
especially on the lee side of lakes.

Marine
Winds will begin to rise today ahead of a disturbance that will
begin to develop over the texas coastal bend. As this disturbance
moves east sh TS and winds will slowly increase through the day. A
more abrupt rise in wind speed will occur late tonight as a cold
front approaches. The cold front will pass through the northern gulf
wed during the day. Between the disturbance getting forced south and
the front moving in, winds will ease a bit back to around 15 to 20kt
wed afternoon. The front will pass by late afternoon and early
evening causing winds to rise abruptly once again. Since winds will
only ease a bit Wed afternoon before rising once again, we will
continue the advisory through this period as well.

Winds ease by the end of the week as high pressure settles across
the northern gulf. Saturday looks like the lightest wind day at the
moment as it transitions from high pressure to a new front moving
through for Saturday night into Sunday. Return flow to become better
established by the start of next week.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: marine.

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 68 46 62 33 20 10 0 0
btr 69 49 63 33 20 30 0 0
asd 71 48 66 36 20 10 0 0
msy 71 53 66 44 20 30 0 0
gpt 70 51 65 39 10 10 0 0
pql 70 46 66 34 10 10 0 0

Lix watches warnings advisories
La... None.

Gm... Small craft advisory from 4 am Wednesday to 4 am cst Thursday
for gmz536-538-550-552-555-557-570-572-575-577.

Ms... None.

Gm... Small craft advisory from 4 am Wednesday to 4 am cst Thursday
for gmz538-550-552-555-557-570-572-575-577.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OSTF1 - Stennis Test Facility 15 mi86 min Calm G 1.9 45°F 1018.2 hPa (-0.8)43°F
NWCL1 - 8761927 - New Canal, LA 20 mi46 min Calm G 2.9 55°F 64°F1017 hPa
SHBL1 - 8761305 - Shell Beach, LA 26 mi46 min N 11 G 12 58°F 64°F1017.2 hPa
CARL1 26 mi46 min 59°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 27 mi46 min NNE 5.1 G 5.1 51°F 60°F1017.4 hPa
FREL1 33 mi46 min SE 2.9 G 5.1 57°F 1016.1 hPa53°F
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi46 min WNW 1 G 1 52°F 62°F1017.4 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Last
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NE19
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G15
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SE1
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G5
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1 day
ago
N22
N23
G29
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N19
G24
N20
N14
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N15
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G21
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2 days
ago
S4
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G10
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G20
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G18
SW12
G20
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G16
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G14
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G17
SW8
G13
N23
G29
N19
G26
N24
N23
G29
N24
G31
N24
G29
N25
G34

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA9 mi23 minNNE 310.00 miFair47°F41°F80%1017.4 hPa
New Orleans, New Orleans Lakefront Airport, LA17 mi23 minENE 1010.00 miFair57°F46°F69%1016.6 hPa

Wind History from ASD (wind in knots)
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Last 24hrN5CalmCalmE33E3E4CalmCalmSE3S5CalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmCalmNE3
1 day agoN10N9N13
G20
N15
G20
N17
G23
N17N12
G19
N14
G21
N11
G20
N10N9N8N5N3N3N3CalmCalmN3N3N4CalmCalmCalm
2 days agoS7S5S6S6S9S10SW10
G21
SW11
G21
S10SW7SW7SW7SW855SW74N8NW9NW8
G17
N11
G18
N11
G23
N17
G25
N12
G18

Tide / Current Tables for Bayou BonFouca, Route 433, Louisiana
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Bayou BonFouca
Click for Map
Tue -- 06:29 AM CST     Sunrise
Tue -- 07:59 AM CST     0.66 feet High Tide
Tue -- 09:01 AM CST     Moonrise
Tue -- 04:59 PM CST     Sunset
Tue -- 07:16 PM CST     0.03 feet Low Tide
Tue -- 07:43 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.30.40.40.50.60.60.60.70.60.60.60.50.40.30.20.10.10000.10.10.1

Tide / Current Tables for Chef Menteur, Chef Menteur Pass, Louisiana
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Chef Menteur
Click for Map
Tue -- 03:12 AM CST     1.35 feet High Tide
Tue -- 06:29 AM CST     Sunrise
Tue -- 09:01 AM CST     Moonrise
Tue -- 02:12 PM CST     0.06 feet Low Tide
Tue -- 05:00 PM CST     Sunset
Tue -- 07:44 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.21.31.31.31.31.110.80.60.40.30.20.10.10.10.10.20.30.40.50.60.80.9

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 (5,6,7,8)
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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.