Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Port Arthur, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:05AMSunset 7:34PM Wednesday March 29, 2017 12:05 PM CDT (17:05 UTC) Moonrise 7:24AMMoonset 8:29PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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- 1012 Am Cdt Wed Mar 29 2017
.small craft advisory in effect until 10 pm cdt this evening...
Rest of today..Southeast winds 15 to 20 knots. Lake waters rough. Slight chance of showers and Thunderstorms late in the morning, then chance of showers and Thunderstorms in the afternoon.
Tonight..South winds 15 to 20 knots. Lake waters rough. Showers and Thunderstorms likely in the evening, then chance of showers and Thunderstorms after midnight.
Thursday..West winds 10 to 15 knots. Lake waters choppy. Chance of showers and Thunderstorms in the morning.
Thursday night..Southwest winds 5 to 10 knots. Lake waters a light chop.
Friday..South winds 5 to 10 knots. Lake waters a light chop.
Friday night..Southeast winds 5 to 10 knots. Lake waters a light chop.
Saturday..Southeast winds 10 to 15 knots. Lake waters choppy.
Saturday night..Southeast winds 10 to 15 knots. Lake waters choppy. Chance of showers and Thunderstorms.
Sunday..Southeast winds 10 to 15 knots. Lake waters choppy. Showers and Thunderstorms likely.
Sunday night..South winds 10 to 15 knots. Lake waters choppy. Showers and Thunderstorms likely.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 1012 Am Cdt Wed Mar 29 2017
Synopsis.. Strong and gusty south winds along with rough seas are expected during the afternoon as a low pressure area and an associated cold front approach the area. Winds are forecast to gradually subside from west to east tonight as the front nears and then pushes through the region. A brief period of west winds will follow the frontal passage, with an onshore flow returning Thursday night into Friday. South winds will increase again over the weekend in association with another storm system forecast to affect the area.

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 291550
afdlch
area forecast discussion
national weather service lake charles la
1050 am cdt Wed mar 29 2017

Update
Line of convection heading into the greater houston area of
southeast texas currently. This activity may undergo a brief
weakening trend before noon, as it begins to reach the forecast
area. However, hi-res models show activity regenerating and firing
up after 2-3 pm over western portion of southeast texas of the
forecast area. With this activity gradually moving into southwest
louisiana during the evening hours. Still potential for severe
weather and we will be launching a special RAOB at 18z to sample
the airmass for this afternoon. Surface winds still expected to
increase this afternoon and will keep the wind advisory in place
as is. No significant changes to the grids/forecast at this time.

Rua

Discussion
Prev discussion /issued 630 am cdt Wed mar 29 2017/
aviation... Spotty MVFR conditions are occurring this morning and
will continue, however ceilings are expected to lower more this
afternoon and into tonight. Rain and thunderstorms will occur this
afternoon and tonight across the region which will lower the vis.

Strong gusty winds are also expected. Winds will be generally sse
this morning and become SW tonight.

Prev discussion... /issued 547 am cdt Wed mar 29 2017/
discussion...

vigorous upper low nearing the tx panhandle per latest water vapor
satellite imagery, with latest sfc analysis showing an elongated
area of low pressure over northern tx, with a leading dryline/front
extending south through central tx and a trailing cold front
stretching west across north tx into nm.

Elevated winds over coastal SE tx/sw la are finally starting to
settle down a bit. This looks to be short lived, however, as winds
are forecast to increase this afternoon across most of the area
along/south of i-10 and over parts of E central la owing to the
tight pressure gradient and a 30-40kt llj. Went ahead an issued a
wind advisory from noon through 6 pm, though it is possible an
extension in time may be needed for locations near the coast.

Gusts could reach into the 35-40 mph range.

Initial band of convection raced eastward across central and into
eastern tx overnight and early this morning, weakening and pushing
out an extensive outflow which is currently generating light
returns over interior SE tx. This scenario was depicted fairly
well in high resolution cam guidance, albeit the guidance was a
little slower than what actually materialized. There has and
continues to be greater disparity in convective evolution today,
however. Examining the overall progged environment and the
guidance that did perform well with this initial round continues
to yield the general idea that significant convection will hold
off spreading into and/or developing over E tx until later this
afternoon with the arrival of more favorable lapse rates and
greater lift accompanying a coupled/split jet structure. All
severe modes continue to look possible per forecast
soundings/parameters. Convection will then spread/move into W la
during the evening and continue twd the atchafalaya through the
overnight period. The trailing cdfnt, which will eventually
overtake/merge with the leading boundary, is forecast to be
pushing east of the sabine river by early Thu morning, and will
exit east of the atchafalaya by late afternoon/early evening. Bulk
of convection is progged to occur well ahead of the actual
boundary, however, and latest guidance continues to accelerate its
departure such that pops Thu were trended downward.

Flat ridging in the wake of the departing upper low will result
in quiet weather on fri, with good rain chances returning late sat
through Sun night with the approach and passage of another upper
low.

13
marine...

strong and gusty south winds along with rough seas are expected
to persist today as a low pressure area and an associated cold
front approach the area. Winds are forecast to gradually subside
from west to east tonight as the front nears and then pushes
through the region. A brief period of west winds will follow the
frontal passage, with an onshore flow returning Thursday night
into Friday. South winds will increase again over the weekend in
association with another storm system forecast to affect the area.

13

Preliminary point temps/pops
Aex 82 67 75 54 / 20 80 40 10
lch 81 66 77 57 / 40 80 40 10
lft 84 72 80 61 / 10 70 60 10
bpt 81 63 79 58 / 60 70 30 0

Lch watches/warnings/advisories
La... Wind advisory until 6 pm cdt this evening for laz031>033-041>045-
052>055-073-074.

Tx... Wind advisory until 6 pm cdt this evening for txz215-216.

Gm... Small craft advisory until 1 am cdt Thursday for gmz450-452-455-
470-472-475.

Small craft advisory until 10 pm cdt this evening for gmz430-432.

Small craft advisory until 10 pm cdt this evening for gmz435.

Small craft exercise caution until noon cdt today for gmz435.

Public... 07


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBPT2 - 8770570 - Sabine Pass North, TX 3 mi48 min ESE 15 G 19 75°F 77°F1012.9 hPa
TXPT2 6 mi48 min ESE 15 G 17 74°F 75°F1011.9 hPa
PORT2 - 8770475 - Port Arthur, TX 7 mi48 min SE 7 G 12 74°F1011.8 hPa
SRST2 - Sabine Pass, TX 9 mi66 min ESE 13 G 16 76°F 1012 hPa (+0.3)70°F
HIST2 29 mi48 min ESE 13 G 16
CAPL1 - 8768094 - Calcasieu Pass, LA 30 mi48 min SE 14 G 19 76°F 75°F
KCVW 32 mi21 min ESE 13 77°F 72°F
RLOT2 - 8770971 - Rollover Pass, TX 37 mi48 min ESE 19 G 20 74°F 75°F1010.4 hPa
BKTL1 43 mi48 min 74°F
42035 - GALVESTON 22NM East of Galveston, TX 46 mi76 min E 14 G 16 73°F 72°F6 ft1010.5 hPa (+0.0)71°F
LCLL1 - 8767816 - Lake Charles, LA 48 mi48 min 80°F 71°F1012.9 hPa

Wind History for Sabine Pass North, TX
(wind in knots)    EDIT      (on/off)   Help
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Last
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SE18
G22
SE19
SE15
G23
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G24
SE19
G27
SE20
G26
SE18
G24
SE19
G24
SE20
SE20
SE19
G25
SE20
G26
SE24
G30
SE21
G30
SE18
G28
SE16
G26
SE15
G19
SE15
G22
SE15
G19
S4
G7
SE7
SE10
G13
E14
G17
E15
1 day
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S15
G21
S11
G16
S14
G21
S11
G16
S13
G17
S10
G14
S9
G12
SE10
SE8
SE9
SE10
G13
SE10
S10
G15
S10
G14
S8
G12
S8
G11
S6
G9
S6
SE5
SE7
G10
SE10
SE10
SE14
G19
SE16
G20
2 days
ago
SE11
G14
SE14
SE14
G17
SE17
SE16
SE15
SE13
G17
SE13
G17
SE15
G19
SE16
G20
SE11
G16
SE16
G21
SE12
SE9
G12
S9
S6
G11
S8
G13
S11
G14
SE10
SE11
G14
S12
G17
S11
G15
S14
G19
S15
G21

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beaumont/Port Arthur Southeast Texas Regional Airport, TX14 mi13 minESE 13 G 2010.00 miOvercast78°F66°F69%1011.3 hPa
Orange, Orange County Airport, TX21 mi31 minSSE 12 G 1610.00 miMostly Cloudy80°F67°F66%1012.2 hPa

Wind History from BPT (wind in knots)
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Last 24hrSE15SE16SE16
G24
SE19SE18
G23
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G24
SE15
G22
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G21
SE19
G29
SE18SE15
G24
SE19
G29
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G30
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G26
SE18
G26
S15
G28
SE15
G21
W5E3SE3SE10SE8SE14
G18
SE13
G20
1 day agoS12SW6
G19
S13
G18
S14
G20
S13S11S10S7SE6S8S6S7S7S6S7S8S4S4SE4E4SE5SE10--SE11
G18
2 days agoS13
G21
S11
G19
S14
G19
S15
G21
SE13
G18
S13
G18
S12SE10SE12SE14
G20
SE16S16
G21
S6S7S7S93S5S7S7S8S9S13
G17
S10

Tide / Current Tables for Mesquite Point, Sabine Pass, Texas
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Mesquite Point
Click for Map
Wed -- 06:07 AM CDT     1.34 feet High Tide
Wed -- 07:08 AM CDT     Sunrise
Wed -- 08:23 AM CDT     Moonrise
Wed -- 12:04 PM CDT     0.65 feet Low Tide
Wed -- 05:24 PM CDT     1.12 feet High Tide
Wed -- 07:32 PM CDT     Sunset
Wed -- 09:28 PM CDT     Moonset
Wed -- 11:58 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
0.40.50.70.91.11.31.31.31.210.80.70.70.70.80.91.11.11.110.80.60.40.3

Tide / Current Tables for Sabine Naches Canal, Port Arthur, Texas
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Sabine Naches Canal
Click for Map
Wed -- 12:12 AM CDT     0.31 feet Low Tide
Wed -- 06:58 AM CDT     1.04 feet High Tide
Wed -- 07:08 AM CDT     Sunrise
Wed -- 08:23 AM CDT     Moonrise
Wed -- 12:54 PM CDT     0.59 feet Low Tide
Wed -- 06:15 PM CDT     0.92 feet High Tide
Wed -- 07:32 PM CDT     Sunset
Wed -- 09:28 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.30.40.60.70.91110.90.80.70.60.60.60.70.80.90.90.90.80.70.50.3

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 (13,3,4,5)
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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.