Monday, March27, 2017 L-36.com


Marine Weather and Tides
Erath, 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 7:01AMSunset 7:24PM Sunday March 26, 2017 11:49 PM CDT (04:49 UTC) Moonrise 5:13AMMoonset 5:08PM Illumination 0% 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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GMZ435 Vermilion Bay- 1000 Pm Cdt Sun Mar 26 2017
Rest of tonight..South winds 10 to 15 knots. Bay waters choppy.
Monday..South winds 10 to 15 knots. Bay waters choppy. Slight chance of showers and Thunderstorms through the day.
Monday night..South winds 5 to 10 knots. Bay waters a light chop.
Tuesday..South winds 5 to 10 knots. Bay waters a light chop.
Tuesday night..Southeast winds 10 to 15 knots. Bay waters choppy.
Wednesday..Southeast winds 10 to 15 knots. Bay waters choppy.
Wednesday night..South winds 10 to 15 knots. Bay waters choppy. Chance of showers and Thunderstorms.
Thursday..South winds 10 to 15 knots. Bay waters choppy. Showers and Thunderstorms likely.
Thursday night..West winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Friday..West winds up to 5 knots becoming south in the afternoon. Bay waters smooth.
Friday night..Southeast winds 5 to 10 knots. Bay waters a light chop.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 1000 Pm Cdt Sun Mar 26 2017
Synopsis.. Southerly flow will continue to increase a bit tonight and Monday as the pressure gradient increases between high pressure to the east and low pressure over the plains. Expect winds and seas to diminish Tuesday, but increase once again Wednesday and Thursday as another low pressure system approaches from the west, with showers and Thunderstorms likely by Wednesday afternoon into Thursday.

7 Day Forecast for Marine Location Near Erath, LA
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location: 29.68, -92.12     debug


Area Discussion for - Lake Charles, LA
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Fxus64 klch 270310
afdlch
area forecast discussion
national weather service lake charles la
1010 pm cdt Sun mar 26 2017

Discussion
Main forecast issue at this time appears to be the chances of
strong/severe convection to our NW actually making it to the
forecast area later tonight. Regional 88ds show scattered
supercells associated with advancing SRN plains shortwave and
increasing low level jetting across the red river valley... With a
few extending farther SW into cntl tx. Not seeing much in the
guidance that calls for this activity to actually make it to our
far nwrn zones prior to daybreak... But have updated pops to carry
slim chances to just outside our forecast area. Also threw in a
patchy fog mention over our far sern zones where winds will be a
little lighter overnight.

Update out shortly.

25

Prev discussion /issued 626 pm cdt Sun mar 26 2017/
aviation...

vfr and tempo MVFR conditions will continue across the area for
the next several hours before giving way to MVFR ceilings late
this evening. Southerly winds are expected to remain sustained
5-10 knots which should limit any fog development tonight. MVFR
conditions will continue through mid morning tomorrow before
giving way toVFR conditions.

Prev discussion... /issued 248 pm cdt Sun mar 26 2017/
discussion...

wx map shows high pressure over the eastern gulf with low pressure
over the plains yielding southerly flow over the region. Goes-16
visible satellite imagery shows the scattered/broken layer of
clouds over most of the region. Temps this afternoon are near
80/lower 80s, likely to rise a couple more degrees the next 2
hours.

The forecast this week will continue above normal temperatures,
with 3 more disturbances to affect the region.

The next upper level disturbance affecting ok this afternoon will
move across the region Monday, with the best chance of showers
and thunderstorms across central louisiana and north of the
region. SPC has shifted marginal risk of severe thunderstorms
further north. For Tuesday, our region expected to remain precip
free.

By Wednesday and Thursday, the next upper level low will bring
increasing chances of showers and thunderstorms by late Wednesday
morning, with the best chances Wednesday night into Thursday
morning. Models are a bit quicker on ending the precipitation
Thursday afternoon. SPC has portions of the region in 15% chance
for severe thunderstorms, and as expected, will be finer tuned the
closer we get to the event.

Friday, our region expected to remain precip free. By Saturday,
the next disturbance is a little harder to pinpoint with
intensity/timing, as significant spread continues among the long
range guidance.

Dml
marine...

southerly flow will continue to increase a bit tonight and Monday
as the pressure gradient increases between high pressure to the
east and low pressure over the plains. Expect winds and seas to
diminish Tuesday, but increase once again Wednesday and Thursday
as another low pressure system approaches from the west, with
showers and thunderstorms likely by Wednesday afternoon into Thursday.

Dml

Preliminary point temps/pops
Aex 65 83 65 83 / 10 40 10 10
lch 67 82 68 82 / 10 30 10 10
lft 67 83 68 84 / 10 20 10 10
bpt 68 82 68 82 / 10 20 10 10

Lch watches/warnings/advisories
La... None.

Tx... None.

Gm... None.

Public... 04


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRWL1 - 8766072 - Fresh Water Canal Locks, LA 13 mi49 min SE 13 G 16 72°F 74°F1013.9 hPa (+0.0)
MRSL1 - Marsh Island, LA / CSI03 17 mi109 min 18 G 20 72°F
KSCF 41 mi34 min SSE 19 72°F 70°F
EINL1 44 mi49 min S 15 G 19 72°F 62°F1014.3 hPa (+0.0)69°F
AMRL1 - 8764227 - Amerada Pass, LA 44 mi49 min SE 4.1 G 8 70°F 63°F1014.8 hPa (+0.0)
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 47 mi49 min SSE 7 G 8.9 71°F 60°F1015 hPa (+0.0)

Wind History for LAWMA, Amerada Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Abbeville Chris Crusta Memorial Airport, LA21 mi74 minSSE 10 G 1510.00 miOvercast72°F71°F100%1014.6 hPa

Wind History from 7R4 (wind in knots)
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Last 24hr----------------------------------------------NW5
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Southwest Pass, Vermilion Bay, Louisiana
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Southwest Pass
Click for Map
Mon -- 03:35 AM CDT     1.53 feet High Tide
Mon -- 06:52 AM CDT     Moonrise
Mon -- 07:03 AM CDT     Sunrise
Mon -- 10:02 AM CDT     0.35 feet Low Tide
Mon -- 04:27 PM CDT     1.33 feet High Tide
Mon -- 07:10 PM CDT     Moonset
Mon -- 07:23 PM CDT     Sunset
Mon -- 09:59 PM CDT     New Moon
Mon -- 09:59 PM CDT     0.52 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.21.41.51.51.41.20.90.60.40.30.40.50.811.21.31.31.210.70.60.50.6

Tide / Current Tables for Lighthouse Point, Louisiana
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Lighthouse Point
Click for Map
Mon -- 02:50 AM CDT     1.85 feet High Tide
Mon -- 06:52 AM CDT     Moonrise
Mon -- 07:03 AM CDT     Sunrise
Mon -- 08:13 AM CDT     0.31 feet Low Tide
Mon -- 03:42 PM CDT     1.67 feet High Tide
Mon -- 07:10 PM CDT     Moonset
Mon -- 07:23 PM CDT     Sunset
Mon -- 08:17 PM CDT     0.56 feet Low Tide
Mon -- 09:59 PM CDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.71.81.81.71.30.80.50.30.30.50.711.21.51.61.71.51.10.80.60.60.70.9

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 (0,6,7,8)
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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 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.