Thursday, August6, 2020
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Marine Weather and Tides
Berwick, 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 6:24AMSunset 7:52PM Thursday August 6, 2020 7:44 PM CDT (00:44 UTC) Moonrise 9:06PMMoonset 8:06AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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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GMZ435 Vermilion Bay- 343 Pm Cdt Thu Aug 6 2020
Tonight..Northwest winds up to 5 knots. Bay waters smooth. Slight chance of showers and Thunderstorms in the evening.
Friday..North winds up to 5 knots becoming southwest in the afternoon. Bay waters smooth.
Friday night..Southwest winds 5 to 10 knots. Bay waters a light chop.
Saturday..Northwest winds up to 5 knots becoming south in the afternoon. Bay waters smooth increasing to a light chop in the afternoon. Slight chance of showers and Thunderstorms in the afternoon.
Saturday night..Southwest winds 5 to 10 knots. Bay waters a light chop.
Sunday..Southwest winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms in the afternoon.
Sunday night..Southwest winds 5 to 10 knots. Bay waters a light chop.
Monday..South winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms in the afternoon.
Monday night..South winds 5 to 10 knots. Bay waters a light chop.
Tuesday..South winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms in the afternoon.
Tuesday night..South winds 5 to 10 knots. Bay waters a light chop.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 343 Pm Cdt Thu Aug 6 2020
Synopsis.. Light and variable winds will continue into early Friday. Onshore flow will develop by late Friday and continue through next week as high pressure ridges across the northern gulf.


7 Day Forecast for Marine Location Near Berwick, LA
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location: 29.74, -91.23     debug


Area Discussion for - Lake Charles, LA
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FXUS64 KLCH 070015 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 715 PM CDT Thu Aug 6 2020

DISCUSSION. For the 08/07/20 0000 UTC TAF package.

AVIATION. VFR prevailing all sites amid a mostly clear sky and generally light SFC winds. A few showers continue across parts of SW LA, but these are not expected to impact any terminal and should dissipate over the next couple of hours. VFR to prevail through the overnight period and through the day FRI as prospects of daytime shower and thunderstorm activity remain relatively limited.

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PREV DISCUSSION. /issued 413 PM CDT Thu Aug 6 2020/

SYNOPSIS . Convection today has been much less than the past few days, although some widely sctd showers and storms have developed acrs lower SE TX and SW LA, mainly south of I-10 where a seabreeze boundary has been attempting to organize. Otherwise, amidst partly to mostly cloudy skies, temperatures are in the upper 80s/around 90.

Latest UA analysis and WV imagery shows ridging building acrs the Rio Grande Valley into TX, with a lingering trough/shear axis acrs just east of the lower MS Valley. A weak shortwave sliding south over the area is providing additional support to convection acrs SW LA and SE TX.

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DISCUSSION . Convection this aftn should dissipate by early this evening as daytime heating wanes. Ridging aloft will build in from the west tonight, while a wedge of drier air in the mid levels acrs TN/N MS spreads southwestward into the region. PWATs will diminish to between 1.3 to 1.6 inches on Friday (near normal for this time of year). While convective coverage should be even less on Friday, CAM guidance suggests some sctd showers and storms will be possible mainly acrs SE TX. With moisture a little better in this area, along with minimal capping, would not be surprised to see some convection develop again during the aftn so inserted some low-ish PoPs (no more than 30 percent) here.

Meanwhile, whatever is left of the diffuse frontal boundary that has been over the region the past several days will begin to lift north as it gradually dissipates, with onshore flow bcmg established as the Bermuda high ridges into the Gulf of Mexico. A return to low end chc PoPs is expected on Saturday, with the best chcs acrs the lower Atchafalaya Basin and lower Acadiana.

By Sunday, a weakness will develop over the northern Gulf between the ridge acrs the southern plains and subtropical ridging over the western Atlantic. This weakness will gradually migrate west through the early part of next week as the ridge acrs TX begins to retrograde. The result will be a return to a more typical summertime pattern of diurnally influenced convection, with a gradual increase in coverage each day.

No significant fluctuation in temperatures is expected through the period. Daytime highs will be mostly in the lower to middle 90s, with overnight lows in the 70s, close to August climatological normals.

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MARINE . Light and somewhat vrbl winds will persist through early Friday, with onshore flow developing Friday aftnn and continuing through next week. Winds will remain around 10 KT or less, with seas of 1 to 2 feet, so no advisory or caution flags are anticipated. Showers and tstms will remain limited tonight into Friday, with a return to more seasonal sctd convection over the weekend and into early next week.

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PRELIMINARY POINT TEMPS/POPS. AEX 68 94 72 96 / 0 0 0 10 LCH 74 93 75 92 / 10 10 0 30 LFT 71 94 74 94 / 0 10 0 20 BPT 76 93 76 92 / 10 20 0 20

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




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 5 mi56 min SE 5.1 G 8.9
AMRL1 - 8764227 - Amerada Pass, LA 21 mi56 min ESE 1.9 G 2.9 90°F 90°F1014.7 hPa
EINL1 27 mi56 min SSW 8 G 8.9 86°F 88°F1014.6 hPa75°F
BYGL1 - 8762482 - Bayou Gauche, LA 43 mi56 min SSE 1.9 G 2.9 90°F 91°F1015 hPa

Wind History for Tesoro Marine Terminal, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patterson Memorial, LA5 mi48 minN 7 miFair89°F73°F61%1014.8 hPa
Salt Point, LA20 mi45 minN 0 mi89°F73°F61%1014 hPa

Link to 5 minute data for KPTN

Wind History from PTN (wind in knots)
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Last 24hrW9W5NW3NW4NW3CalmCalmN3N4N5NE3N4NE4E43N6NW7W7NW6NW8N8N5N7N7
1 day agoW6W5W4W3CalmCalmCalmSW3CalmCalmCalmCalmSW3CalmCalmCalmW6W6W4S6SW10SW8W6SW6
2 days agoCalmCalmCalmCalmCalmCalmCalmW4CalmSW3NW4W4W6NW5W6W6W7NW6
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Tide / Current Tables for Shell Island, Louisiana
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Shell Island
Click for Map
Thu -- 06:28 AM CDT     Sunrise
Thu -- 08:55 AM CDT     1.36 feet High Tide
Thu -- 09:06 AM CDT     Moonset
Thu -- 12:25 PM CDT     1.01 feet Low Tide
Thu -- 06:51 PM CDT     1.23 feet High Tide
Thu -- 07:53 PM CDT     Sunset
Thu -- 10:06 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-000.20.30.60.811.21.31.41.31.11111.11.11.21.21.21.10.90.60.3

Tide / Current Tables for Point Chevreuil, Louisiana
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Point Chevreuil
Click for Map
Thu -- 06:29 AM CDT     Sunrise
Thu -- 09:03 AM CDT     1.36 feet High Tide
Thu -- 09:07 AM CDT     Moonset
Thu -- 12:10 PM CDT     1.01 feet Low Tide
Thu -- 06:59 PM CDT     1.23 feet High Tide
Thu -- 07:54 PM CDT     Sunset
Thu -- 10:07 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-00.10.20.40.60.811.21.31.41.31.11111.11.11.21.21.21.20.90.60.3

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 (20,4,5,8)
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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.