Tuesday, May23, 2017 L-36.com


Marine Weather and Tides
Patterson, LA

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 6:04AMSunset 7:55PM Tuesday May 23, 2017 2:01 AM CDT (07:01 UTC) Moonrise 3:37AMMoonset 4:41PM Illumination 6% Phase: Waning Crescent; Moon at 27 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- 955 Pm Cdt Mon May 22 2017
.small craft exercise caution in effect until 7 am cdt Tuesday...
Rest of tonight..South winds 20 to 25 knots. Seas 2 to 4 feet. Showers and slight chance of Thunderstorms.
Tuesday..West winds 15 to 20 knots decreasing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Tuesday night..West winds 5 to 10 knots becoming northwest 15 to 20 knots after midnight. Seas 1 to 3 feet. Chance of Thunderstorms in the evening. Chance of showers through the night. Slight chance of Thunderstorms after midnight.
Wednesday..Northwest winds 15 to 20 knots. Seas 1 to 3 feet.
Wednesday night..Northwest winds 10 to 15 knots. Seas 1 to 3 feet.
Thursday..Southwest winds 5 to 10 knots. Seas 1 foot or less.
Thursday night..South winds 10 to 15 knots. Seas 1 to 3 feet.
Friday..South winds 10 to 15 knots. Seas 1 to 3 feet.
Friday night..South winds 10 to 15 knots. Seas 1 to 3 feet.
Saturday..South winds 10 to 15 knots. Seas 1 to 3 feet.
Saturday night..South winds 10 to 15 knots. Seas 2 to 4 feet.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 955 Pm Cdt Mon May 22 2017
Synopsis.. Showers and isolated Thunderstorms will continue over the coastal waters through the overnight hours. Another round of showers and Thunderstorms will be possible Tuesday as a cold front moves across the coastal waters. Behind the front...offshore flow will be in place over the coastal waters through Thursday.

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 230438
afdlch
area forecast discussion
national weather service lake charles la
1138 pm cdt Mon may 22 2017

Discussion
For the 23/06z TAF issuance.

Aviation
An upper level disturbance is moving away from the forecast area
currently. Only a few showers will remain in the vicinity of kara
through about 23/09z, otherwise, low ceilings with MVFR lowering
to ifr will be the main issue during the overnight. Ceilings will
gradually improve during Tuesday morning with MVFR toVFR after
23/18z. Another upper level disturbance will move across during
Tuesday evening. Will add vcsh at all TAF sites after 24/00z.

Rua

Prev discussion /issued 957 pm cdt Mon may 22 2017/
update... Rain chances continue to decrease across the region this
evening, however rainfall rates in the remaining stronger storms
is still fairly high. Will keep the ff watch for now until the
convection exits. Also modified the pops to reflect current
trends, but overall the previous forecast remains on track.

Prev discussion... /issued 430 pm cdt Mon may 22 2017/
discussion...

short term... Tonight through Tuesday...

regional radar imagery shows light to moderate rain continuing
across the region this afternoon. There have been a few isolated
thunderstorms that have developed over the coastal waters;
however, more widespread convection has not developed. Overall
trend in the forecast has been for lower rainfall totals this
evening and tonight given the stratiform nature of the
precipitation. There is still a small chance for some minor
flooding and no changes to the flash flood watch will be made with
it currently set to expire at 1 am tonight.

The cold front that has been providing forcing for the showers and
thunderstorms over the past two days will begin to exit the region
late in the day on Tuesday. This will result in another chance of
showers and thunderstorms, mainly during the evening hours. The
cold front is expected to clear the CWA by late tomorrow evening
with northwest winds ushering drier air into the region.

Long term... Wednesday through Sunday...

a 500 hpa upper level ridge and associated surface high pressure
will build into the region for the second half of the work week.

Cooler conditions are expected on Wednesday with cold air
advection over the region. Wednesday night into Thursday is also
expected to have an ideal setup for radiational cooling with clear
skies and light winds. Onshore flow is expected to redevelop
Thursday and temperatures will return to normal for early summer.

The next chances for rainfall is expected late into the weekend as
the next shortwave trough approaches the region.

Marine...

showers and isolated thunderstorms will continue over the coastal
waters through the overnight hours. Winds will decrease as this
first round of showers and storms exit the region and small craft
exercise caution conditions are expected to end by morning.

Another round of showers and thunderstorms will be possible
Tuesday as a cold front moves across the coastal waters. Winds
will increase behind the front and could result in small craft
exercise caution conditions Tuesday night. Offshore flow will be
in place over the coastal waters through Thursday.

Preliminary point temps/pops
Aex 63 79 58 77 / 70 30 50 10
lch 67 82 62 80 / 70 30 50 10
lft 70 83 65 79 / 90 50 40 10
bpt 67 84 59 82 / 50 40 50 10

Lch watches/warnings/advisories
La... Flash flood watch until 1 am cdt Tuesday for laz033-044-045-
052>055.

Tx... None.

Gm... Small craft exercise caution until 7 am cdt Tuesday for gmz452-
455-472-475.

Aviation... 07


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EINL1 0 mi44 min SW 24 G 28 78°F 74°F1008.6 hPa74°F
AMRL1 - 8764227 - Amerada Pass, LA 6 mi44 min S 7 G 12 77°F 73°F1008.7 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 22 mi44 min S 8.9 G 12 75°F 73°F1009.4 hPa
KSCF 31 mi27 min 7 G 14 77°F 73°F
MRSL1 - Marsh Island, LA / CSI03 36 mi122 min 8 G 16 78°F

Wind History for LAWMA, Amerada Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salt Point, LA15 mi69 minVar 5 mi75°F72°F90%1008.8 hPa
Patterson Memorial, LA24 mi66 minS 710.00 miLight Rain74°F72°F94%1009.8 hPa

Wind History from P92 (wind in knots)
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Last 24hr3SW553CalmCalmCalm44334E8SE9E6E5SE96SE10
G18
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G15
4554
1 day agoCalmCalmCalmCalmCalm3SW43SW53SW4Calm35SE13SE1034E7E66SE12
G22
SE86
2 days agoSE6SE7SE6SE5SE5SE5SE46SE756S7664433CalmCalm3SE43Calm

Tide / Current Tables for Eugene Island, Louisiana
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Eugene Island
Click for Map
Tue -- 03:13 AM CDT     2.03 feet High Tide
Tue -- 04:37 AM CDT     Moonrise
Tue -- 06:09 AM CDT     Sunrise
Tue -- 06:49 AM CDT     1.33 feet Low Tide
Tue -- 01:41 PM CDT     1.86 feet High Tide
Tue -- 05:40 PM CDT     Moonset
Tue -- 07:01 PM CDT     -0.06 feet Low Tide
Tue -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.81.921.91.61.41.31.41.41.51.71.81.81.81.61.20.60.1-0.100.20.50.8

Tide / Current Tables for Lawma, Amerada Pass, Louisiana
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Lawma
Click for Map
Tue -- 03:11 AM CDT     1.44 feet High Tide
Tue -- 04:36 AM CDT     Moonrise
Tue -- 06:08 AM CDT     Sunrise
Tue -- 09:11 AM CDT     0.80 feet Low Tide
Tue -- 01:50 PM CDT     1.18 feet High Tide
Tue -- 05:40 PM CDT     Moonset
Tue -- 07:55 PM CDT     Sunset
Tue -- 08:52 PM CDT     -0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.11.31.41.41.31.10.90.80.80.80.911.11.21.10.90.60.30.1-0.1-0.1-00.2

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 (3,6,7,8)
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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 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.