Friday, February21, 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 6:33AMSunset 5:54PM Friday February 21, 2020 9:23 AM CST (15:23 UTC) Moonrise 6:28AMMoonset 5:14PM Illumination 5% Phase: Waning Crescent; Moon at 28 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:202002212300;;867992 Fzus54 Klix 210947 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 347 Am Cst Fri Feb 21 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. Gmz550-552-212300- 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- 347 Am Cst Fri Feb 21 2020
.gale warning in effect until 10 am cst this morning...
.small craft advisory in effect from 10 am cst this morning through this afternoon...
Today..Northeast winds 25 to 30 knots easing to 15 to 20 knots late. Seas 5 to 8 feet with occasional seas to 9 feet. Dominant period 5 seconds. Waves or seas subsiding to 3 to 6 feet with occasional seas to 6 feet. Dominant period 5 seconds in the afternoon.
Tonight..Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Dominant period 4 seconds.
Saturday..Northeast winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 4 seconds.
Saturday night..East winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 7 seconds.
Sunday..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds.
Sunday night..South winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 4 seconds.
Monday..Southwest winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 7 seconds. Chance of showers and slight chance of Thunderstorms.
Monday night..West winds 10 to 15 knots becoming northwest after midnight. Seas 3 to 5 feet. Dominant period 7 seconds. Chance of showers and Thunderstorms.
Tuesday..Northwest winds 10 to 15 knots. Seas 3 to 5 feet. Dominant period 7 seconds. Slight chance of showers through the day. Chance of Thunderstorms in the afternoon.
Tuesday night..Northwest winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 7 seconds. Slight chance of showers.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 347 Am Cst Fri Feb 21 2020
Synopsis..Winds remain elevated but should begin to wane as the morning hours progress. High pressure will settle into the area in the wake of the strong cold front.


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 210948 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 348 AM CST Fri Feb 21 2020

SHORT TERM.

With the rain well east of the area, the stronger winds expected to move into the area have taken hold. We are expecting a few more hours of stronger winds before they begin to wane some after 6AM. At that time, the wind advisory will be allowed to expire. Much cooler air continues to filter into the area and high temperatures today will struggle to reach the lower 50s.

The concern shifts completely to the colder temperatures tonight as we have seen a several week stretch of warmer weather. That combined with the calendar approaching March warrants a freeze warning for a short period of time early tomorrow morning. Some of the locations in the warning may only see an hour or two of freezing temperatures, while some of the northernmost locations could see 5-7 hours.

Temperatures should rebound tomorrow into the mid to upper 50s and could push 60 in a few spots. Overall a dry weekend is expected across the area.

LONG TERM.

By Monday, an series of upper level troughs will begin to take shape and move across the central Plains pushing a couple of cold fronts into the area. The first should clear the area by Monday night bringing elevated rain chances during the day Monday and into the evening hours on Monday. This would be good news for outdoor activities on Tuesday, as most of the rain would be well through the area before Tuesday morning. A second and much drier front would push through on Tuesday evening, dropping temperatures again on Wednesday before high pressure begins building back into the area.

AVIATION.

Most terminals were 1900 to 2700 feet . but no ceiling at KMCB and KBTR. Clearing line quickly progressing southward, and should clear south of all terminals between 09 and 11Z this morning. Beyond that, VFR with the only significant issue being winds. Winds will slowly decrease through 18Z. Remaining terminals will continue to see gusts above 20 knots, and in the case of KNEW and KMSY, potentially greater than 30 knots through 13Z. By 15Z, those 2 terminals will likely see gusts in the 20 to 25 knot range for most of the daylight hours with some easing after 00Z Saturday.

MARINE.

Will allow the gale warnings to expire at 6AM this morning and replace with small craft advisories as winds are still elevated across the coastal waters. By this afternoon, winds should begin to wane to below criteria. High pressure will settle in for the weekend before a series of disturbances drive cold fronts into the coastal waters beginning on Monday evening.

DECISION SUPPORT.

DSS code: Blue. Deployed: None. Activation: None. Activities: Forecast support for Stennis Space Center River Flood Warnings Wind Advisory Gale Warnings over Coastal Waters Freeze Warning

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; Marginal risk severe or excessive rain. Yellow = Heightened impacts with short-fused watch, warning or advisory issuances; radar support for slight risk severe or excessive rain. Orange = High Impacts; Enhanced risk severe; nearby tropical events; HazMat or other large episodes. Red = Full engagement for Moderate to high risk of severe and/or excessive rainfall, or direct tropical threats; Events of National Significance.

PRELIMINARY POINT TEMPS/POPS. MCB 51 31 57 40 / 0 0 0 0 BTR 51 31 58 42 / 0 0 0 0 ASD 53 33 58 41 / 0 0 0 0 MSY 53 41 57 46 / 0 0 0 0 GPT 52 33 56 42 / 0 0 0 0 PQL 53 33 58 39 / 0 0 0 0

LIX WATCHES/WARNINGS/ADVISORIES. LA . Wind Advisory until 6 AM CST early this morning for LAZ059>070.

Freeze Warning from midnight tonight to 7 AM CST Saturday for LAZ034>037-039-040-046>050-071-072.

GM . Small Craft Advisory from 10 AM this morning to 6 PM CST this evening for GMZ536-538-550-552-555-557-570-572-575-577.

Gale Warning until 10 AM CST this morning for GMZ536-538-550-552- 555-557-570-572-575-577.

Small Craft Advisory from 6 AM this morning to noon CST today for GMZ530-532-534.

Gale Warning until 6 AM CST early this morning for GMZ530-532- 534.

MS . Freeze Warning from midnight tonight to 7 AM CST Saturday for MSZ068>071-077-080>082.

GM . Small Craft Advisory from 10 AM this morning to 6 PM CST this evening for GMZ538-550-552-555-557-570-572-575-577.

Gale Warning until 10 AM CST this morning for GMZ538-550-552-555- 557-570-572-575-577.

Small Craft Advisory from 6 AM this morning to noon CST today for GMZ532-534.

Gale Warning until 6 AM CST early this morning for GMZ532-534.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 1 mi54 min NE 22 G 28
BURL1 - Southwest Pass, LA 3 mi84 min 22 G 24
KDLP 15 mi29 min NNE 30 46°F 39°F
PILL1 18 mi54 min NE 12 G 17 46°F 49°F1031.2 hPa
LOPL1 - Louisiana Offshore Oil Port, LA 33 mi29 min NNE 24 G 32 45°F 5 ft1031.1 hPa37°F
GISL1 - 8761724 - Grand Isle, LA 37 mi54 min N 18 G 24 58°F
KMIS 38 mi29 min ENE 25 G 33 48°F 41°F
KXPY 44 mi29 min NNE 18 G 26 45°F 37°F

Wind History for Pilots Station East, SW Pass, LA
(wind in knots)    EDIT      (on/off)   Help
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NE2

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
G15
W9NW7W5W4W4W6W7W9
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1 day agoS12SW12SW12S11S10S9S12S10S10S8S9S9S10S10S9S9SW10SW13N11
G18
N7NW5NW53NW6
2 days agoNE7NE6NE5E4NE5E3CalmCalmCalmSE3CalmCalmN3CalmSE3SE4S7S6S9S8S10S11S11S12

Tide / Current Tables for Pilot Station, Southwest Pass, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Joseph Bayou, Mississippi River, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    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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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.