Thursday, August13, 2020
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Marine Weather and Tides
Port Arthur, TX

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 6:41AMSunset 7:59PM Thursday August 13, 2020 9:40 PM CDT (02:40 UTC) Moonrise 12:27AMMoonset 2:35PM Illumination 23% Phase: Waning Crescent; Moon at 25 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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GMZ430 Sabine Lake- 300 Pm Cdt Thu Aug 13 2020
Tonight..Southwest winds 5 to 10 knots. Lake waters a light chop.
Friday..Southwest winds 5 to 10 knots. Lake waters a light chop. Slight chance of showers and Thunderstorms.
Friday night..Southwest winds 5 to 10 knots. Lake waters a light chop.
Saturday..Southwest winds 5 to 10 knots. Lake waters a light chop.
Saturday night..Southwest winds 5 to 10 knots. Lake waters a light chop.
Sunday..West winds 5 to 10 knots. Lake waters a light chop. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Sunday night..West winds 5 to 10 knots. Lake waters a light chop. Slight chance of showers and Thunderstorms in the evening, then chance of showers and Thunderstorms after midnight.
Monday..North winds 5 to 10 knots. Lake waters a light chop. Chance of showers and Thunderstorms.
Monday night..Northeast winds around 5 knots. Lake waters smooth. Chance of showers and Thunderstorms in the evening, then slight chance of showers and Thunderstorms after midnight.
Tuesday..Northeast winds 5 to 10 knots. Lake waters a light chop. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Tuesday night..East winds around 5 knots. Lake waters smooth.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 300 Pm Cdt Thu Aug 13 2020
Synopsis.. Light southwest to west winds will continue through the weekend as weak surface high pressure will be found across the northern gulf of mexico. Isolated to widely scattered showers and Thunderstorms will be possible. A cool front is expected to move through the coastal waters Monday, bringing a light offshore flow through Tuesday.


7 Day Forecast for Marine Location Near Port Arthur, TX
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location: 29.77, -93.9     debug


Area Discussion for - Lake Charles, LA
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FXUS64 KLCH 132335 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 635 PM CDT Thu Aug 13 2020

DISCUSSION. For 08/14/2020 00Z TAF Issuance

AVIATION. Scattered convection working southward through the region this evening. Storms beginning to clear up at ARA/LFT, with VRB winds expected to become reestablished as light and SSW later this evening. Associated outflow boundary also working its way towards LCH. Some convection could develop as this moves through, but otherwise just some variable gusty winds to be expected as it passes. VFR CIGS expected overnight with guidance once again hinting at patchy BR related VIS reductions near sunrise. Low enough confidence and coverage to preclude adding it into the TAFs at this time. SCT CU field begins to develop through the morning with winds picking up out of the SW. Upper level energy rotating southward around the periphery of an upper level ridge centered over the SW CONUS will lead to an uptick in PoPs by the afternoon hours. Again, best forcing/moisture looks to be across the eastern terminals. High res guidance showing a similar setup to today with a broken convective line moving southward through central LA, but for now only enough confidence to add afternoon VCTS.

50

PREV DISCUSSION. /issued 256 PM CDT Thu Aug 13 2020/

DISCUSSION . Wx map shows high pressure ridge across Northern Gulf and Southern U.S. keeping a light pressure gradient, and light southwest winds across the region. Radar showing scattered showers and isolated thunderstorms across the South Central Louisiana. Larger complex of thunderstorms across Northeast Louisiana moving southward, mostly generated from an outflow boundary from earlier convection. Made adjustments to this afternoon chances of 40-50% a littler earlier across Central Louisiana, and spreading southward for later this afternoon.

Temperatures ranging in the lower to mid 90s across the area. Dewpoints mainly in the lower to mid 70s give heat index values in the 104-107 range across Louisiana. These numbers will significantly lower once the thunderstorms arrive across Central and South Central Louisiana. For Southeast Texas, dewpoints in the mid to upper 70s continue with the same temperature range, yielding heat index values in the 108-112 range. For this, Heat Advisory continues for all of Southeast Texas through 7 PM.

Forecast for Friday into early next week will be dominated by a mid to upper ridge across the Western and Central U.S. with a deepening long wave trough over the Eastern U.S. Closer to the ridge over Inland SE TX/C LA, warmer than normal temperatures in the mid to upper 90s and only isolated showers and thunderstorms. Higher shower and thunderstorm chances expected, along with lower afternoon highs, expected over South Central Louisiana.

By Monday and Tuesday, high pressure aloft expected to retreat westward with the longwave trough to deepen over the Central U.S. Better agreement among the long range models today for a weak cool front with lower dewpoints expected Monday and Tuesday.

DML

MARINE . Light southwest to west winds will continue through the weekend as weak surface high pressure will be found across the northern Gulf of Mexico. Isolated to widely scattered showers and thunderstorms will be possible. A cool front is expected to move through the coastal waters Monday, bringing a light offshore flow through Tuesday.

DML

PRELIMINARY POINT TEMPS/POPS. AEX 76 95 75 97 / 30 20 10 30 LCH 79 93 79 94 / 10 20 0 20 LFT 76 93 77 94 / 30 30 10 40 BPT 79 93 79 94 / 10 20 0 10

LCH WATCHES/WARNINGS/ADVISORIES. LA . None. TX . Heat Advisory until 7 PM CDT this evening for TXZ180-201-215-216- 259>262.

GM . None.

AVIATION . 50


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBPT2 - 8770570 - Sabine Pass North, TX 3 mi112 min 86°F 91°F
TXPT2 6 mi112 min 85°F 90°F
PORT2 - 8770475 - Port Arthur, TX 7 mi112 min 86°F 89°F
HIST2 29 mi118 min 87°F 91°F
CAPL1 - 8768094 - Calcasieu Pass, LA 30 mi112 min 87°F 90°F
RLOT2 - 8770971 - Rollover Pass, TX 37 mi112 min 89°F
BKTL1 43 mi112 min 91°F
42035 - GALVESTON 22NM East of Galveston, TX 46 mi30 min S 9.7 G 12 86°F 87°F1013.2 hPa81°F
LCLL1 - 8767816 - Lake Charles, LA 48 mi112 min 89°F 90°F

Wind History for Sabine Pass North, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaumont/Port Arthur Southeast Texas Regional Airport, TX14 mi47 minSSW 510.00 miFair82°F78°F88%1013.3 hPa
Orange, Orange County Airport, TX21 mi45 minSSW 510.00 miFair85°F77°F76%1014.2 hPa

Link to 5 minute data for KBPT

Wind History from BPT (wind in knots)
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Last 24hrS5S5S4S4S3CalmCalmCalmCalmCalmCalmSW3SW6W4SW7W6SW9S5SW8S9S8S8S7S5
1 day agoS4S4S3S4S3W3CalmS4S3CalmCalmSW4SW8S12
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2 days agoS4S4S3SE3CalmS4S4S3CalmCalmS3SW7SW6SW5W9CalmCalmS6S10S11S7S8S5S5

Tide / Current Tables for Mesquite Point, Sabine Pass, Texas
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Mesquite Point
Click for Map
Thu -- 01:27 AM CDT     Moonrise
Thu -- 05:15 AM CDT     1.25 feet High Tide
Thu -- 06:42 AM CDT     Sunrise
Thu -- 03:35 PM CDT     Moonset
Thu -- 06:19 PM CDT     0.08 feet Low Tide
Thu -- 07:57 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.11.21.21.21.21.21.21.21.21.21.110.90.70.50.30.10.10.10.20.30.50.7

Tide / Current Tables for Sabine Pass (jetty), Texas
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Sabine Pass (jetty)
Click for Map
Thu -- 01:27 AM CDT     Moonrise
Thu -- 03:53 AM CDT     2.40 feet High Tide
Thu -- 06:42 AM CDT     Sunrise
Thu -- 03:34 PM CDT     Moonset
Thu -- 05:13 PM CDT     0.15 feet Low Tide
Thu -- 07:57 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.42.42.42.42.42.42.32.32.22.11.91.61.20.80.50.30.20.20.40.611.51.9

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 (22,6,7,8)
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Ground Weather Radar Station Lake Charles, 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.