Saturday, January18, 2020
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Marine Weather and Tides
Venice, LA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:54AMSunset 5:26PM Saturday January 18, 2020 9:45 AM CST (15:45 UTC) Moonrise 1:57AMMoonset 1:31PM Illumination 41% Phase: Third Quarter Moon; Moon at 23 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 Expires:202001182230;;130433 Fzus54 Klix 181001 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 401 Am Cst Sat Jan 18 2020 Pascagoula To Atchafalaya River Out To 60 Mile Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest Ten Percent Of The Waves. Gmz550-552-182230- 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- 401 Am Cst Sat Jan 18 2020
.small craft exercise caution in effect until 10 am cst this morning...
Today..South winds 10 to 15 knots becoming southwest near 5 knots in the afternoon. Seas 4 to 7 feet with occasional seas to 9 feet. Dominant period 8 seconds. Chance of showers through the day. Slight chance of Thunderstorms in the late morning and afternoon.
Tonight..West winds 5 to 10 knots becoming north 10 to 15 knots after midnight, then rising to 20 to 25 knots after midnight. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 8 seconds. Slight chance of Thunderstorms in the evening. Chance of showers through the night.
Sunday..North winds 20 to 25 knots. Seas 4 to 7 feet with occasional seas to 9 feet. Dominant period 9 seconds. Slight chance of showers in the morning.
Sunday night..North winds 20 to 25 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 5 seconds.
Monday..North winds 20 to 25 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 5 seconds.
Monday night..Northeast winds 15 to 20 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 4 seconds.
Tuesday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet.
Tuesday night..Northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wednesday..East winds 10 to 15 knots. Seas 2 to 4 feet.
Wednesday night..East winds 15 to 20 knots. Seas 3 to 5 feet. Slight chance of showers and Thunderstorms after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 401 Am Cst Sat Jan 18 2020
Synopsis..A strong cold front is expected to push through the waters Saturday night. High pressure will build over the waters early next 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 181531 AAA AFDLIX

Area Forecast Discussion . UPDATED National Weather Service New Orleans LA 931 AM CST Sat Jan 18 2020

UPDATE. Having to extend the Small Craft Advisory for high seas in excess of 7 feet with 8-9 second swell train in place. Winds are falling below criteria, but seas are likely to hold within criteria before becoming mixed out by frontal passage later this evening. Cold air advection after midnight expected to bring all coastal waters back into SCA criteria. This will be issued with the afternoon package, with perhaps a 6 hour gap between current criteria issuance and next issuance.

As far as public/land forecast is concerned, all is on track with front clearly showing as a pencil thin line of shallow convection on radar presentation and hard clearing line on satellite imagery from about Memphis to San Antonio area, moving steadily eastward. Pre-fronal convection appears to be quite shallow with lightning limited to a few strikes south of the Houston metro area. 24/RR

PREV DISCUSSION. /issued 717 AM CST Sat Jan 18 2020/

SOUNDING DISCUSSION . The 12z sounding indicates a small degree of instability in place as largely moist adiabatic lapse rates dominate the atmospheric column. Shear values are impressive this morning with SRH in the lowest 3km of over 300m2/s2, but the lack of instability will limit the severe potential today as little in the way of thunderstorm activity is forecast. The atmosphere is is moisture loaded with precipitable water values of 1.50 inches observed this morning, and this will support some locally heavy showers during the day. PG

PRELIMINARY POINT TEMPS/POPS. MCB 72 41 52 34 / 60 40 0 0 BTR 74 43 53 36 / 70 40 0 0 ASD 75 44 54 34 / 100 40 10 0 MSY 76 48 54 40 / 40 40 10 0 GPT 70 45 54 35 / 50 40 10 0 PQL 73 45 56 33 / 80 40 10 0

LIX WATCHES/WARNINGS/ADVISORIES. LA . None. GM . Small Craft Advisory until 6 PM CST this evening for GMZ555-557- 575-577.

MS . None. GM . Small Craft Advisory until 6 PM CST this evening for GMZ557-575- 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 mi46 min 67°F 52°F1021.7 hPa
BURL1 - Southwest Pass, LA 3 mi46 min 14 G 14
KDLP 15 mi11 min 5.1 70°F 68°F
PILL1 18 mi46 min 71°F 51°F1023.2 hPa (+0.3)
42093 24 mi16 min 66°F3 ft
LOPL1 - Louisiana Offshore Oil Port, LA 33 mi24 min SSE 6 G 7 71°F 4 ft1024.1 hPa66°F
GISL1 - 8761724 - Grand Isle, LA 37 mi46 min 66°F
KMIS 38 mi11 min S 8.9 G 16 77°F 68°F
KXPY 44 mi11 min 4.1 72°F 70°F

Wind History for Pilots Station East, SW Pass, LA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KBVE

Wind History from BVE (wind in knots)
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Last 24hrNW8NW8NW6
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1 day agoS12SW12SW12S11S10S9S12S10S10S8S9S9S10S10S9S9SW10SW13N11
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2 days agoNE7NE6NE5E4NE5E3CalmCalmCalmSE3CalmCalmN3CalmSE3SE4S7S6S9S8S10S11S11S12

Tide / Current Tables for Southwest Pass, Mississippi River Delta, Louisiana (2)
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Southwest Pass
Click for Map
Sat -- 12:57 AM CST     Moonrise
Sat -- 02:55 AM CST     -0.14 feet Low Tide
Sat -- 06:51 AM CST     Sunrise
Sat -- 12:30 PM CST     Moonset
Sat -- 03:40 PM CST     0.88 feet High Tide
Sat -- 05:24 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.1-0.1-0.1-0.1-0.1-000.10.20.30.50.60.70.80.90.90.80.70.60.50.30.1-0.1

Tide / Current Tables for Joseph Bayou, Mississippi River Delta, Louisiana
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Joseph Bayou
Click for Map
Sat -- 12:56 AM CST     Moonrise
Sat -- 02:51 AM CST     -0.16 feet Low Tide
Sat -- 06:51 AM CST     Sunrise
Sat -- 12:30 PM CST     Moonset
Sat -- 03:42 PM CST     0.95 feet High Tide
Sat -- 05:23 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (10,2,3,4)
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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 numerous 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.