Thursday, February20, 2020
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Marine Weather and Tides
New Orleans, 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 6:34AMSunset 5:53PM Thursday February 20, 2020 9:11 PM CST (03:11 UTC) Moonrise 4:48AMMoonset 3:19PM 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 310 Pm Cst Thu Feb 20 2020
.small craft advisory in effect until 6 pm cst this evening...
.gale warning in effect through late tonight...
Tonight..North winds 20 to 25 knots. Waves 3 to 5 feet with occasional waves to 6 feet. Dominant period 4 seconds. Slight chance of showers in the evening.
Friday..North winds 20 to 25 knots easing to 10 to 15 knots in the afternoon. Waves 3 to 5 feet. Dominant period 4 seconds.
Friday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Waves or seas subsiding to less than 1 foot. Dominant period 4 seconds in the afternoon.
Saturday night..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday night..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Monday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the afternoon.
Monday night..West winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers.
Tuesday night..Northwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 310 Pm Cst Thu Feb 20 2020
Synopsis.. Winds will increase this evening and gale force winds are probable this evening and into the morning hours on Friday. High pressure will settle behind the front relaxing winds by Friday evening. High pressure will remain in place through the weekend.


7 Day Forecast for Marine Location Near New Orleans, LA
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location: 30.07, -90.06     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 202142 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 342 PM CST Thu Feb 20 2020

DISCUSSION. A wet and dreary day across the area. The rain should start to wind down over the next few hours as the main shield of rain shifts to the east. A few lingering showers will be possible overnight. The biggest issue in the short term will be the possibility of high winds over the southshore tonight behind the cold front. Winds gusts up to 35 mph will be possible tonight over the southshore . with this in mind have issued a Wind Advisory for portions of the area for tonight in anticipation of these strong wind gusts. The next story will be the late winter Arctic airmass that will settle in behind the front. Temperatures will be well below normal tonight and tomorrow. We will have areas over the next two nights be at or below freezing. Will have to monitor these temperatures for the possibility of issuing a Freeze Warning. Either way it will be much cooler for Friday and Saturday. A warming trend will begin on Sunday ahead of an upper level trough digging through the Plains on Sunday. Rain chances will increase by Sunday night and Monday as a result with a few strong storms possible in the northern most zones during this period. Guidance improves the forecast some on Tuesday as new runs suggest that the front pushes through the area for Tuesday morning. Will have to continue to monitor trends for outdoor activities on Tuesday.

AVIATION. Expect MVFR to IFR conditions for the evening hours as the front continues to trigger showers and low cigs. As the front moves through expect winds to significantly increase late tonight and last through the morning hours. Expect an improvement to VFR conditions late in the TAF period.

MARINE. Winds will increase to upwards of 25 knots with frequent gusts of 35 to 40 knots possible across the coastal waters tonight. A Gale Warning across all the coastal waters until 12Z Friday morning. Winds should begin to wane in the near shore waters and the tidal lakes by then but the remainder of the inner and outer coastal waters will remain under the gale warning until 18Z. The next cold front will begin to cause a rise in SE winds by Monday with the front possibly moving through late Monday but there are differences as we get farther out in time.

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

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 34 51 31 58 / 10 0 0 0 BTR 33 52 31 58 / 10 0 0 0 ASD 34 54 32 58 / 20 0 0 0 MSY 41 53 39 57 / 20 0 0 0 GPT 37 52 35 56 / 20 0 0 0 PQL 36 54 33 58 / 20 0 0 0

LIX WATCHES/WARNINGS/ADVISORIES. LA . Wind Advisory from 6 PM this evening to 6 AM CST Friday for LAZ059>070.

GM . Small Craft Advisory until 6 PM CST this evening for GMZ530-532- 534-536-538-550-552-555-557-570-572-575-577.

Gale Warning from 6 PM this evening to 10 AM CST Friday for GMZ536-538-550-552-555-557-570-572-575-577.

Gale Warning from 6 PM this evening to 6 AM CST Friday for GMZ530-532-534.

MS . None. GM . Small Craft Advisory until 6 PM CST this evening for GMZ532-534- 536-538-550-552-555-557-570-572-575-577.

Gale Warning from 6 PM this evening to 10 AM CST Friday for GMZ538-550-552-555-557-570-572-575-577.

Gale Warning from 6 PM this evening to 6 AM CST Friday for GMZ532-534.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 4 mi60 min N 25 G 29 49°F 62°F1025.8 hPa
CARL1 10 mi54 min 49°F
FREL1 19 mi54 min N 22 G 27 47°F 1026.2 hPa
SHBL1 - 8761305 - Shell Beach, LA 25 mi60 min N 24 G 31 50°F 65°F1026.2 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 27 mi60 min NNE 2.9 G 8 48°F 64°F1026.7 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 43 mi54 min N 21 G 27 48°F 58°F1026.7 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA3 mi19 minN 24 G 3210.00 miOvercast and Windy49°F44°F83%1027.4 hPa
New Orleans, New Orleans International Airport, LA12 mi19 minN 16 G 3010.00 miOvercast49°F42°F77%1028 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA17 mi77 minN 14 G 2810.00 miOvercast49°F45°F86%1025.6 hPa
Slidell, Slidell Airport, LA23 mi19 minN 18 G 2510.00 miOvercast and Breezy47°F41°F80%1027.7 hPa

Link to 5 minute data for KNEW

Wind History from NEW (wind in knots)
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Last 24hrNE11NE7E9E7E8E9E11SE11E10E8SE10SE8N21N20N16N21N19
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1 day agoCalmS3S5S3N6N4CalmN12NE6NE6NE4E4NE8NE7NW9E6N7NE6N7NE7NE12NE12NE13NE13
2 days agoSE6SE7SE7SE8SE7SE8SE8SE8SE6SE3SE7S7S8S10S10S10SW11S11S9S7SW7SW5SW5S5

Tide / Current Tables for New Canal USCG station, Lake Pontchartrain, 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 Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Thu -- 12:10 AM CST     1.06 feet High Tide
Thu -- 04:47 AM CST     Moonrise
Thu -- 06:35 AM CST     Sunrise
Thu -- 12:31 PM CST     -0.44 feet Low Tide
Thu -- 03:18 PM CST     Moonset
Thu -- 05:51 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.1110.90.70.50.30.1-0-0.2-0.3-0.4-0.4-0.4-0.4-0.3-0.2-0.10.10.20.40.60.80.9

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 (22,6,7,8)
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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 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.