Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Patterson, LA

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 7:06AMSunset 6:28PM Thursday October 19, 2017 9:14 AM CDT (14:14 UTC) Moonrise 5:55AMMoonset 5:50PM Illumination 1% Phase: New Moon; Moon at 29 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- 413 Am Cdt Thu Oct 19 2017
.small craft exercise caution in effect through this evening...
Today..East winds 15 to 20 knots. Seas 1 to 3 feet.
Tonight..East winds 15 to 20 knots. Seas 2 to 4 feet.
Friday..East winds 15 to 20 knots. Seas 1 to 3 feet. Slight chance of showers and Thunderstorms in the afternoon.
Friday night..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Slight chance of showers and Thunderstorms.
Saturday..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Chance of showers and Thunderstorms.
Saturday night..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Chance of showers and Thunderstorms.
Sunday..South winds 10 to 15 knots. Seas 1 to 3 feet. Showers and Thunderstorms likely.
Sunday night..Northwest winds 10 to 15 knots. Seas 1 to 3 feet. Chance of showers and Thunderstorms.
Monday..Northwest winds 10 to 15 knots. Seas 1 to 3 feet. Slight chance of showers and Thunderstorms.
Monday night..Northwest winds 10 to 15 knots. Seas 1 to 3 feet.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 413 Am Cdt Thu Oct 19 2017
Synopsis.. Elevated easterly flow today will become southeasterly over the weekend as the pressure gradient tightens due to a surface low deepening across the area. Increased offshore flow will develop behind a cold front Sunday night into Monday.

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 191205
afdlch
area forecast discussion
national weather service lake charles la
705 am cdt Thu oct 19 2017

Discussion
19 12z TAF issuance.

Aviation
Considerable high clouds are streaming acrs the region early this
morning, over an otherwise dry airmass in place. Moisture near the
sfc remains shallow, but some patchy fog capable of producing MVFR
vsbys can be expected at ara, while brief ifr vsbys are possible
at aex. High clouds are expected to scatter out today, with
little, if any, low clouds. Moisture will begin to increase and
deepen from the southwest this evening as a shortwave trough
approaches from the west, bringing sct bknVFR CIGS to bpt
tonight. Elsewhere,VFR is expected to prevail through the period.

Winds will be easterly 5 to 10 kt.

24

Prev discussion issued 410 am cdt Thu oct 19 2017
discussion...

skies were fair overnight with temperatures noticeably warmer
overnight with temperatures in the mid 50s to lower 60s. Thin highs
clouds were streaming in from texas while some lower clouds were
trying to work in along the coastal areas.

Aloft... A ridge of high pressure was over the region with troughing
across the eastern and western united states. A weaker short wave
trough was moving eastward this morning across new mexico and
extreme west texas into mexico. At the surface... .High pressure
across the eastern united states was still ridging westward all the
way into our area.

Not expecting much today as the atmosphere continues to remain
rather dry even though we will see a steady but slow increase in the
moisture as east to southeasterly flow begins to bring in higher
dewpoint air off especially off the gulf of mexico. The best low
level moisture will still be shunned off to our west into lower and
central texas. The upper ridge should continue to slide eastward
today as the shortwave trough approaches from west texas. So, we are
generally just expecting a continued warmup today with clouds
increasing mainly where the low level moisture gets established into
texas. Overnight lows will continue to climb into the weekend.

Pops look to increase as we get into the weekend as the trof
begins to approach the region from the west, with most of the
forecast area getting a good chance for pops beginning across
southeast texas and spreading eastward into louisiana early
Saturday morning into Sunday. A cold front along with sfc
cyclogenesis over the area should generate showers and
thunderstorms that will continue until the cold front has passed.

The front should move across southeast texas Saturday afternoon
and through louisiana by Sunday night.

The remainder of the forecast period looks dry with a more nwrly
flow aloft developing behind the trof. A secondary cool front is
progged to cross the area late in the day Tuesday into Tuesday
night helping to firmly entrench this dry trend through the end of
next week. Temperatures are expected to return to our recent
trend of mins in the 50s maxes in the 70s.

Marine... Elevated easterly flow today will become southeasterly
over the weekend as the pressure gradient tightens due to a surface
low deepening across the area. Brisk offshore flow will develop
behind a cold front Sunday night into Monday. A secondary surge of
offshore flow can be expected Tuesday night into Wednesday as
another fronts sweeps across the marine waters.

06

Preliminary point temps pops
Aex 83 58 84 65 10 10 10 20
lch 85 65 85 70 10 10 20 20
lft 85 61 86 70 10 10 10 20
bpt 83 67 83 71 10 10 30 20

Lch watches warnings advisories
La... None.

Tx... None.

Gm... Small craft exercise caution through this evening for gmz450-452-
455-470-472-475.

Aviation... 24


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EINL1 0 mi45 min E 14 G 16 69°F 74°F1020.2 hPa62°F
AMRL1 - 8764227 - Amerada Pass, LA 6 mi45 min NE 5.1 G 8 67°F 74°F1020.8 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 22 mi45 min NE 9.9 G 13 68°F 78°F1021.2 hPa
KSCF 31 mi20 min ENE 18 73°F 68°F
MRSL1 - Marsh Island, LA / CSI03 36 mi135 min 12 G 14 69°F

Wind History for LAWMA, Amerada Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salt Point, LA15 mi22 minVar 3 mi67°F63°F87%1020.9 hPa

Wind History from P92 (wind in knots)
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Last 24hr65E443CalmCalmCalmCalmCalmCalm4E33SE5E3CalmCalmCalmCalmCalmCalmCalm3
1 day ago5CalmN6----Calm4--33SE3CalmCalmCalmCalmCalmCalmCalmCalmNE33335
2 days agoN8
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N33CalmCalmN445N334Calm3Calm44N7

Tide / Current Tables for Eugene Island, Louisiana
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Eugene Island
Click for Map
Thu -- 03:43 AM CDT     2.16 feet High Tide
Thu -- 06:54 AM CDT     Moonrise
Thu -- 07:09 AM CDT     Sunrise
Thu -- 08:30 AM CDT     0.78 feet Low Tide
Thu -- 02:12 PM CDT     New Moon
Thu -- 05:01 PM CDT     2.36 feet High Tide
Thu -- 06:30 PM CDT     Sunset
Thu -- 06:49 PM CDT     Moonset
Thu -- 09:06 PM CDT     1.54 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.922.12.11.91.51.10.80.80.91.11.31.61.92.12.32.42.21.91.71.51.61.6

Tide / Current Tables for Lawma, Amerada Pass, Louisiana
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Lawma
Click for Map
Thu -- 04:47 AM CDT     1.14 feet High Tide
Thu -- 06:54 AM CDT     Moonrise
Thu -- 07:09 AM CDT     Sunrise
Thu -- 11:06 AM CDT     0.29 feet Low Tide
Thu -- 02:12 PM CDT     New Moon
Thu -- 05:29 PM CDT     1.31 feet High Tide
Thu -- 06:30 PM CDT     Sunset
Thu -- 06:49 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.811.11.11.10.90.70.50.30.30.30.50.711.21.31.31.21.10.90.90.8

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

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Lake Charles, LA (10,2,3,4)
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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 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.