Friday, August18, 2017 L-36.com


Marine Weather and Tides
Port Arthur, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:44AMSunset 7:54PM Friday August 18, 2017 1:19 PM CDT (18:19 UTC) Moonrise 2:23AMMoonset 4:28PM Illumination 13% Phase: Waning Crescent; Moon at 26 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- 1010 Am Cdt Fri Aug 18 2017
Today..Southwest winds up to 5 knots. Lake waters smooth.
Tonight..Southwest winds 5 to 10 knots. Lake waters a light chop.
Saturday..Southwest winds up to 5 knots. Lake waters smooth. Slight chance of showers and Thunderstorms in the afternoon.
Saturday night..Southwest winds 5 to 10 knots. Lake waters a light chop.
Sunday..North winds up to 5 knots becoming southeast in the afternoon. Lake waters smooth. Chance of showers and Thunderstorms in the afternoon.
Sunday night..Southeast winds up to 5 knots. Lake waters smooth.
Monday..Northeast winds up to 5 knots becoming southeast around 5 knots in the afternoon. Lake waters smooth. Chance of showers and Thunderstorms.
Monday night..Southeast winds up to 5 knots. Lake waters smooth.
Tuesday..Southeast winds up to 5 knots. Lake waters smooth. Chance of showers and Thunderstorms.
Tuesday night..Southeast winds up to 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 1010 Am Cdt Fri Aug 18 2017
Synopsis.. Surface high pressure will continue to ridge across the northern gulf of mexico. This will keep a light to modest onshore flow over the coastal waters through the period.

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 181719
afdlch
area forecast discussion
national weather service lake charles la
1219 pm cdt Fri aug 18 2017

Discussion
For the 08 18 17 1800 utc TAF package.

Aviation
Deep layer ridging prevails across the region today, which
should act to keep convection fairly isolated in nature. Already
seeing some shower activity along the coast and over east central
la. Maintained vcts all sites for the rest of the afternoon amid
an otherwiseVFR forecast with west winds under 12kt. Calm winds
and a clear sky expected tonight. Could see some light and brief
vsby restrictions toward morning, but will omit from forecasts at
this time owing to low confidence in temporal spatial details.

13

Prev discussion issued 1040 am cdt Fri aug 18 2017
update... Minor westward expansion of low end pops across
the area for this afternoon. Otherwise all looks good.

Prev discussion... Issued 707 am cdt Fri aug 18 2017
discussion...

for 12z TAF issuance.

Aviation...

not many changes to previous TAF thinking this morning. Seeing a
little bit of light fog this morning but that should burn off
shortly. OtherwiseVFR conditions should prevail through the
period. Hard to rule out at least widespread convection today
given the moist unstable airmass in place across the region and
lack of good capping per forecast soundings... Thus have retained
the inherited vcts mention all sites other than kbpt. Will let
later shifts better refine low cloud light fog threat for late
tonight.

25
prev discussion... Issued 341 am cdt Fri aug 18 2017
discussion...

area remains under a flat ridge along the northern gulf coast
today. Thus making for another tricky convective forecast. At this
time expect bulk of the convection will remain to the north of the
forecast area, however with moist unstable air will can not rule
out some activity along any outflow boundaries from the north.

This would mainly be during or shortly after peak heating and
along the northern and eastern portions of the forecast area.

Also inherited a heat advisory. This mornings guidance is not a
bullish on heat index values getting up to criteria, especially in
the potential convection and it appears to show drier air mixing
down at the other locations. However the past few days dewpoints
have stayed up a little more than expected and thus will continue
the heat advisory for now most areas. Did add tyler county and
removed the eastern fringe.

Otherwise the ridge weakens just a bit for the weekend and thus
will increase pops just a bit but not as high as the previous
forecast.

Then late weekend into early next week still see and inverted
trof moving across the gulf will cause an uptick in clouds and
showers early next week. This may hinder eclipse viewing for our
area especially along the coastal zone.

This trof will move inland around mid week, however daily rain
chances will continue.

Preliminary point temps pops
Aex 94 74 95 74 30 0 30 10
lch 95 78 95 76 20 10 20 10
lft 94 77 94 76 30 0 30 10
bpt 94 78 93 78 10 10 20 0

Lch watches warnings advisories
La... Heat advisory until 7 pm cdt this evening for laz030-031-041>044-
052>054-073-074.

Tx... Heat advisory until 7 pm cdt this evening for txz180-201-215-216-
261-262.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBPT2 - 8770570 - Sabine Pass North, TX 3 mi49 min SSW 6 G 13 89°F 89°F1019 hPa
TXPT2 6 mi49 min SSW 8.9 G 13 86°F 87°F1016.8 hPa
PORT2 - 8770475 - Port Arthur, TX 7 mi49 min SSE 4.1 G 8 89°F 87°F1017.6 hPa
SRST2 - Sabine Pass, TX 9 mi79 min SW 8 G 8.9 88°F 1018.1 hPa (+0.0)76°F
HIST2 29 mi49 min SW 5.1 G 11 90°F 88°F1017.7 hPa
CAPL1 - 8768094 - Calcasieu Pass, LA 30 mi49 min SW 8.9 G 11 88°F1016.9 hPa
KCVW 32 mi44 min SSW 8 88°F 77°F
RLOT2 - 8770971 - Rollover Pass, TX 37 mi49 min W 4.1 G 8.9 87°F 86°F1017.7 hPa
BKTL1 43 mi49 min 87°F
42035 - GALVESTON 22NM East of Galveston, TX 46 mi79 min WSW 3.9 G 5.8 86°F 87°F2 ft1018.1 hPa (+1.6)78°F
LCLL1 - 8767816 - Lake Charles, LA 48 mi49 min 89°F 86°F1018 hPa

Wind History for Sabine Pass North, TX
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SW7
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G20
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SW6
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G16
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G19
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G18
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G19

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaumont/Port Arthur Southeast Texas Regional Airport, TX14 mi26 minW 710.00 miPartly Cloudy92°F75°F58%1016.7 hPa
Orange, Orange County Airport, TX21 mi24 minWSW 310.00 miPartly Cloudy91°F74°F58%1017.6 hPa

Wind History from BPT (wind in knots)
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Last 24hrSW9SW9S9S8S10S9S5S5SW3S3CalmS4S4S5SW4S4CalmCalmCalmSW4SW4W55W7
1 day agoS14
G18
S12
G21
S11S11SW10S9S7S6S6S7S7S7S9S7S7S6S6S5S4SW7SW10SW9SW8SW11
2 days agoS7CalmS5S11
G17
S8S12S7S5S3S4S4S5S5S5S6S5S4CalmS4S7S9
G15
S11S11
G19
SW13

Tide / Current Tables for Mesquite Point, Sabine Pass, Texas
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Mesquite Point
Click for Map
Fri -- 03:23 AM CDT     Moonrise
Fri -- 03:26 AM CDT     1.18 feet High Tide
Fri -- 06:45 AM CDT     Sunrise
Fri -- 07:30 AM CDT     1.00 feet Low Tide
Fri -- 12:04 PM CDT     1.23 feet High Tide
Fri -- 05:27 PM CDT     Moonset
Fri -- 07:52 PM CDT     Sunset
Fri -- 08:14 PM CDT     -0.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.91.11.21.21.11.1111.11.11.21.21.21.10.90.70.40.1-0.1-0.2-0.2-00.2

Tide / Current Tables for Sabine Naches Canal, Port Arthur, Texas
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Sabine Naches Canal
Click for Map
Fri -- 03:23 AM CDT     Moonrise
Fri -- 05:15 AM CDT     0.90 feet High Tide
Fri -- 06:45 AM CDT     Sunrise
Fri -- 08:12 AM CDT     0.86 feet Low Tide
Fri -- 01:02 PM CDT     0.99 feet High Tide
Fri -- 05:28 PM CDT     Moonset
Fri -- 07:53 PM CDT     Sunset
Fri -- 09:17 PM CDT     -0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.50.70.80.90.90.90.90.90.90.90.91110.90.70.50.20-0.1-0.2-0.2-0.1

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Lake Charles, LA (14,3,4,5)
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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 numerious 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.