Saturday, May30, 2020
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Marine Weather and Tides
Patterson, 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 6:02AMSunset 7:59PM Saturday May 30, 2020 12:33 PM CDT (17:33 UTC) Moonrise 12:34PMMoonset 12:58AM Illumination 61% Phase: Waxing Gibbous; Moon at 8 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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GMZ455 Coastal Waters From Lower Atchafalaya River To Intracoastal City La Out 20 Nm- 1028 Am Cdt Sat May 30 2020
Rest of today..Northeast winds 5 to 10 knots becoming southeast in the afternoon. Seas 1 foot or less. Slight chance of showers in the afternoon.
Tonight..West winds up to 5 knots becoming northeast after midnight. Seas 1 foot or less.
Sunday..East winds 5 to 10 knots. Seas 1 foot or less.
Sunday night..Southeast winds up to 5 knots becoming northeast after midnight. Seas 1 foot or less.
Monday..East winds 5 to 10 knots. Seas 1 foot or less.
Monday night..Southeast winds 5 to 10 knots. Seas 1 foot or less.
Tuesday..East winds 5 to 10 knots. Seas 1 foot or less. Slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southeast winds 5 to 10 knots. Seas 1 foot or less. Slight chance of showers and Thunderstorms after midnight.
Wednesday..Southeast winds 5 to 10 knots. Seas 1 foot or less. Slight chance of showers and Thunderstorms.
Wednesday night..Southeast winds 5 to 10 knots. Seas 1 foot or less.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 1028 Am Cdt Sat May 30 2020
Synopsis.. High pressure to our north will slide east over the next few days, resulting in winds shifting from an offshore component to onshore.


7 Day Forecast for Marine Location Near Patterson, LA
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location: 29.37, -91.39     debug


Area Discussion for - Lake Charles, LA
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FXUS64 KLCH 301720 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 1220 PM CDT Sat May 30 2020

DISCUSSION. For the 30/18Z TAF Issuance.

AVIATION. Main issue will be potential for afternoon convection. GOES-16 vis shows enhanced clouds building along south central and SE Louisiana. Derived GOES precipitable water is also well over 2 inches within this band. Will therefore have afternoon VCTS for LCH and BPT and ocnl -TSRA over the LFT and ARA areas along seabreeze. Appears AEX will not have any showers or storms this afternoon.

Otherwise after 00Z . only high cloudiness and light winds should prevail through Sunday morning.

PREV DISCUSSION . /issued 326 AM CDT Sat May 30 2020/

DISCUSSION .

Short Term [Today and Sunday]

This morning's water vapor satellite imagery indicates an upper level trough extends from the Great Lakes southwestward into the Lower Mississippi River Valley. Regional radar imagery shows that showers and thunderstorms have developed along the remnants of a surface boundary over the coastal waters. This isolated to scattered convection will continue over the coastal waters throughout today. Meanwhile, differential heating of the ware and land surface should result in a Gulf breeze developing by early afternoon. As the Gulf breeze moves inland, it could produce enough forcing for ascent to trigger additional convection inland, with the highest chances across southeastern Acadiana. Convection should end around sunset with the loss of daytime heating.

The upper level trough will exit the region this evening and upper level heights are expected to rise over the CWA during the day Sunday. This will result in warmer and drier conditions on Sunday.

Long Term [Monday through Friday]

The upper level ridge will is expected to remain over the area during the first half of next week. Drier air and increasing subsidence will result in less cloud cover and little to no chance of rainfall. Meanwhile, daytime temperatures will trend upward, with highs expected to reach the lower 90s by Tuesday and Wednesday. By Wednesday, surface high pressure will shift into the northeastern Gulf of Mexico and result in return flow becoming re-established across the CWA. The combination of increasing deep layer moisture and a slight weakness in the upper level heights will result in increasing precipitation chances during the second half of the week into next weekend.

MARINE .

Periods of light offshore flow will continue through the weekend as high pressure builds into the coastal waters. Outside of isolated to scattered showers and thunderstorms today, dry conditions are expected across the coastal waters through early next week. High pressure will shift east resulting in return flow redeveloping early next week along with increasing chances for showers and thunderstorms.

PRELIMINARY POINT TEMPS/POPS. AEX 87 63 87 64 / 10 0 0 0 LCH 88 69 88 69 / 10 10 10 0 LFT 88 70 89 69 / 40 20 10 0 BPT 87 71 88 71 / 20 10 10 0

LCH WATCHES/WARNINGS/ADVISORIES. LA . None. TX . None. GM . None.

AVIATION . 04


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EINL1 0 mi45 min ESE 6 G 7 80°F 77°F1017.5 hPa73°F
AMRL1 - 8764227 - Amerada Pass, LA 6 mi45 min ENE 4.1 G 8 90°F 77°F1017.6 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 22 mi45 min NNE 6 G 9.9 1017.5 hPa
KSCF 31 mi18 min E 12 81°F 72°F

Wind History for LAWMA, Amerada Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salt Point, LA15 mi94 minVar 5 mi83°F72°F70%1017 hPa
Patterson Memorial, LA24 mi37 minE 4 miFair85°F72°F65%1017.8 hPa

Link to 5 minute data for KP92

Wind History from P92 (wind in knots)
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Last 24hr4CalmSW6SW3CalmCalmCalmCalmCalmE3CalmCalmCalmCalmCalmCalmCalmCalmCalm3----54
1 day ago35435--SE7SE9
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E3SE54SE3CalmS3CalmCalmCalmCalmNE333NE555
2 days ago3NW8
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NW3CalmCalmCalmCalmCalmNE3----34SE56S4

Tide / Current Tables for Eugene Island, Louisiana
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Eugene Island
Click for Map
Sat -- 01:57 AM CDT     Moonset
Sat -- 02:20 AM CDT     0.28 feet Low Tide
Sat -- 06:06 AM CDT     Sunrise
Sat -- 12:03 PM CDT     2.00 feet High Tide
Sat -- 01:33 PM CDT     Moonrise
Sat -- 05:05 PM CDT     1.22 feet Low Tide
Sat -- 07:59 PM CDT     Sunset
Sat -- 10:59 PM CDT     1.43 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.40.30.30.40.60.811.31.61.81.921.91.71.41.31.21.21.31.31.41.41.4

Tide / Current Tables for Shell Island, Louisiana
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Shell Island
Click for Map
Sat -- 01:57 AM CDT     Moonset
Sat -- 03:44 AM CDT     0.21 feet Low Tide
Sat -- 06:06 AM CDT     Sunrise
Sat -- 01:22 PM CDT     1.53 feet High Tide
Sat -- 01:33 PM CDT     Moonrise
Sat -- 06:29 PM CDT     0.93 feet Low Tide
Sat -- 07:59 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.60.40.20.20.30.40.50.70.91.11.31.51.51.51.31.210.90.91111.1

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 Lake Charles, LA (13,3,4,5)
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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 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.