Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Venice, 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 7:03AMSunset 6:28PM Tuesday October 17, 2017 3:31 PM CDT (20:31 UTC) Moonrise 4:53AMMoonset 5:30PM Illumination 7% Phase: Waning Crescent; Moon at 27 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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GMZ552 Coastal Waters From Port Fourchon La To Lower Atchafalaya River La Out 20 Nm- Coastal Waters From The Southwest Pass Of The Mississippi River To Port Fourchon Louisiana Out 20 Mile- 1004 Am Cdt Tue Oct 17 2017
.small craft exercise caution in effect through late tonight...
Rest of today..Northeast winds 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Dominant period 4 seconds.
Tonight..Northeast winds 15 to 20 knots. Seas 3 to 6 feet. Dominant period 4 seconds.
Wednesday..Northeast winds 10 to 15 knots. Seas 3 to 6 feet. Dominant period 4 seconds.
Wednesday night..East winds 10 to 15 knots. Seas 3 to 6 feet. Dominant period 5 seconds.
Thursday..East winds 15 to 20 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 5 seconds.
Thursday night..East winds 15 to 20 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 4 seconds.
Friday..East winds 15 to 20 knots. Seas 3 to 6 feet. Dominant period 5 seconds. Slight chance of showers and Thunderstorms.
Friday night..East winds 15 to 20 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 5 seconds. Slight chance of showers and Thunderstorms.
Saturday..Southeast winds 15 to 20 knots. Seas 3 to 6 feet. Chance of showers and Thunderstorms.
Saturday night..Southeast winds 15 to 20 knots. Seas 3 to 6 feet. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1004 Am Cdt Tue Oct 17 2017
Synopsis.. High pressure will settle along and north of the coast while a broad weakness remains over the central and southern gulf through the remainder of the week.

7 Day Forecast for Marine Location Near Venice, LA
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location: 28.94, -89.4     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 170856
afdlix
area forecast discussion
national weather service new orleans la
356 am cdt Tue oct 17 2017

Synopsis
At the surface, high pressure centered over the ohio river valley
southwestward into texas. Aloft, a trough axis runs from the
atlantic coast to the north central gulf of mexico with ridging
near the 4 corners area. Clear skies across the area this morning.

Northeast winds are fairly light, except downwind of warm water
sources, where wind speeds are 15-20 mph. Temperatures near those
warm water sources are generally in the 60s, with 50s elsewhere.

Dew points are in the mid 40s north half, 50s south half.

Short term
High pressure will remain over the eastern half of the country at
the surface as upper ridging moves from the 4 corners area today
to the mississippi river valley by the end of the week. No rain
expected through Thursday, with a couple degrees moderation in
temperatures each day. No large variances in temperatures between
guidance and previous forecast, so no significant changes made. 35

Long term
Medium range models in much better agreement this morning with the
passage of a fairly deep trough through the area Sunday or Sunday
night. About 6-12 hours difference on timing, with the GFS being
the slightly faster guidance. This could bring a chance of rain
back to the area as early as Saturday afternoon, per the gfs
solution, but both models indicate Sunday is the best chance of
rain with high chance to likely pops needed. The biggest question
mark will be Monday. The ECMWF solution would require fairly
healthy rain chances on Monday, while the GFS suggests a dry
forecast. Will go with lower pops than the ECMWF suggests, but not
dry like the gfs. Will trend temperatures somewhat closer to the
gfs solution for the extended forecast. 35

Aviation
Vfr through 12z TAF cycle.

Marine
Winds remain strong this morning behind a departing cold front. The
front is expected to remain over the mid gulf region along with a
broad general weakness in that area through the weekend. The
interaction between this area and strong high pressure to the
northeast will keep most of the coastal waters in moderate to strong
easterly flow through the week as well. The only areas that should
escape these winds will be lake pontchartrain, lake borgne and the
mississippi sound. This will begin to occur today as wind speeds
should rapidly fall from 20-25kt early this morning to 15kt by mid
morning then further ease to around 10kt by afternoon over the above
mentioned waters. Winds may remain 15-20kt over the remaining waters
through the week. There will be a diurnal fluctuation each day in
wind speeds with the highest being found overnight.

Advisory flags will be lowered this morning for all areas and
replaced with caution flags over waters south of a lake
pontchartrain to mississippi sound line. A few showers will begin to
make their way back to the coastal waters by Wednesday and should
gradually begin covering more of the area through the weekend
with a few thunderstorms moving back into the fcast as early as
Friday and lasting through a possible frontal passage by Sunday
evening.

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 75 49 78 52 0 0 0 0
btr 77 51 80 56 0 0 0 0
asd 77 52 79 55 0 0 0 0
msy 75 62 79 65 0 0 0 0
gpt 77 54 79 60 0 0 0 0
pql 77 50 79 53 0 0 0 0

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 9 am cdt this morning for gmz530-532-
534-536-538-550-552-555-557-570-572-575-577.

Ms... None.

Gm... Small craft advisory until 9 am cdt this morning for gmz532-534-
536-538-550-552-555-557-570-572-575-577.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 1 mi43 min NE 15 G 18
BURL1 - Southwest Pass, LA 3 mi31 min NE 15 G 17 76°F 1018.7 hPa (-2.2)67°F
KDLP 15 mi36 min NE 16 73°F 68°F
PILL1 18 mi43 min NE 9.9 G 17 75°F 78°F1019.1 hPa
LOPL1 - Louisiana Offshore Oil Port, LA 33 mi92 min NNE 16 G 19 71°F 3 ft1019.1 hPa
GISL1 - 8761724 - Grand Isle, LA 37 mi43 min NE 8.9 G 13 73°F 78°F1020.2 hPa
KMIS 38 mi36 min ENE 19 75°F 64°F
KXPY 44 mi36 min NNE 9.9 G 17 73°F 61°F

Wind History for Pilots Station East, SW Pass, LA
(wind in knots)    EDIT      (on/off)   Help
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NE21
NE23
NE19
G24
NE21
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G29
NE25
G31
NE25
NE26
G32
NE22
G27
NE21
G26
NE18
G23
NE18
G23
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G23
NE17
G24
NE16
NE16
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G17
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G19
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NE13
G17
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1 day
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SE8
G11
E5
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E9
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E3
E1
NE6
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NE5
N6
NE9
NE11
N19
G23
NE20
G25
NE16
NE20
NE23
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N22
NE18
G22
NE20
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ago
E22
E20
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G23
E17
E22
E18
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G21
SE17
SE15
G19
SE13
G18
SE11
G16
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SE9
G14
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G11
SE7
G11
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G11
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G11
SE5
E10
SE12
SE9
G13
SE9
SE8
G11
SE10

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boothville, LA27 mi40 minNE 8 G 159.00 miMostly Cloudy77°F66°F69%1019.5 hPa

Wind History from BVE (wind in knots)
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Last 24hrN9
G17
N9
G17
N9
G19
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G17
N11
G17
N12
G20
NE13
G23
NE14
G22
NE12
G24
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NE10
G19
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G20
NE13
G19
NE11
G19
NE9
G17
NE8NE9NE9
G15
NE9NE10NE7NE9N8
G16
NE8
G15
1 day ago--W4SW7S3NE3CalmCalmNW4W3CalmCalmNW3N5CalmN7
G19
N13
G22
N11
G20
N10
G19
N9
G17
N9
G18
N8
G18
--N10
G20
N10
G18
2 days agoNE11
G19
E11E11E14
G18
E10
G17
--SE3E6SE6SE5SE5E3SE4SE3E4SE4SE3SE5E8SE7SE5SE84SE6

Tide / Current Tables for Pilot Station, Southwest Pass, Louisiana
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Pilot Station
Click for Map
Tue -- 01:52 AM CDT     0.92 feet Low Tide
Tue -- 04:53 AM CDT     Moonrise
Tue -- 07:00 AM CDT     Sunrise
Tue -- 09:33 AM CDT     1.21 feet High Tide
Tue -- 03:38 PM CDT     0.95 feet Low Tide
Tue -- 05:30 PM CDT     Moonset
Tue -- 06:25 PM CDT     Sunset
Tue -- 09:36 PM CDT     1.07 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.90.90.9111.11.11.21.21.21.21.11.111111111.11.11

Tide / Current Tables for Joseph Bayou, Mississippi River, Louisiana
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Joseph Bayou
Click for Map
Tue -- 02:33 AM CDT     1.20 feet Low Tide
Tue -- 04:52 AM CDT     Moonrise
Tue -- 06:59 AM CDT     Sunrise
Tue -- 09:56 AM CDT     1.41 feet High Tide
Tue -- 03:33 PM CDT     1.15 feet Low Tide
Tue -- 05:29 PM CDT     Moonset
Tue -- 06:24 PM CDT     Sunset
Tue -- 10:11 PM CDT     1.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.21.21.21.21.21.31.31.41.41.41.41.31.31.21.21.21.21.21.31.31.31.41.3

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 (16,3,4,5)
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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.