Wednesday, May23, 2018 L-36.com


Marine Weather and Tides
Bayou Vista, LA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:04AMSunset 7:55PM Wednesday May 23, 2018 5:32 AM CDT (10:32 UTC) Moonrise 1:29PMMoonset 1:37AM Illumination 61% Phase: Waxing Gibbous; Moon at 8 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- 417 Am Cdt Wed May 23 2018
Today..Southeast winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms in the afternoon.
Tonight..Southeast winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and Thunderstorms.
Thursday..East winds around 5 knots becoming southeast in the afternoon. Bay waters smooth increasing to a light chop in the afternoon. Chance of showers and Thunderstorms.
Thursday night..South winds up to 5 knots. Bay waters smooth. Chance of showers and Thunderstorms.
Friday..Northeast winds up to 5 knots becoming southeast around 5 knots in the afternoon. Bay waters smooth. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Friday night..Southeast winds around 5 knots becoming east after midnight. Bay waters smooth. Chance of showers and Thunderstorms.
Saturday..Northeast winds up to 5 knots. Bay waters smooth. Chance of showers and Thunderstorms.
Saturday night..North winds around 5 knots. Bay waters smooth. Chance of showers and Thunderstorms.
Sunday..North winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Sunday night..Northwest winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 417 Am Cdt Wed May 23 2018
Synopsis.. Weak surface high pressure extending west across the northern gulf coast states will maintain a generally light southeast to east flow and low seas over the next couple of days. Winds are expected to turn more northeasterly late in the week and over the weekend as an area of low pressure lifts north across the central gulf of mexico and moves toward the north central gulf coast. Isolated to scattered showers and Thunderstorms are expected Wednesday with activity becoming more numerous Thursday into the weekend as the low approaches.

7 Day Forecast for Marine Location Near Bayou Vista, LA
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location: 29.67, -91.24     debug


Area Discussion for - Lake Charles, LA
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Fxus64 klch 231024
afdlch
area forecast discussion
national weather service lake charles la
524 am cdt Wed may 23 2018

Discussion
A quiet albeit muggy night across the region, with temperatures
currently in the upper 60s to lower 79s. Some light vsby
restrictions noted on area observations, though this has been the
case the past several nights and does not warrant inclusion in the
forecast. Radar imagery depicting more activity over the gulf
waters than the previous few nights, generally coinciding with a
slug of higher pw air as indicated by satellite imagery and model
data. Broad upper trof persists across the NW gulf coast region
early this morning, with a mid upper level vort MAX evident in
moisture channel imagery nearing the middle tx coast.

Expect to see greater convective coverage today than we did
yesterday, initially focused within the aforementioned moisture
slug which extends from the coastal waters NW into SE tx. Model
guidance indicates this moisture will gradually lift nwd, and in
concert with diurnal instability, anticipate convective
development will also expand occur farther inland. Severe tstms
are not expected, though gusty winds and locally heavy rainfall
amounts are possible.

Global models continue to be consistently inconsistent with the
pattern evolution toward the end of the week and over the weekend,
though broadly agree on the upper trof axis continuing slowly ewd
over the next few days, amplifying over the central eastern gulf
as a ridge builds near or just east of the baja. At the sfc, a
broad and weak area of low pressure over the NW caribbean is
forecast to lift into the south central (or se) gulf, then
subsequently move nwd. Still a fair amount of spread on
strength track timing of this low pressure area, though the broad
consensus is for this feature to remain east of our area as it
reaches the north central or NE gulf coast by the latter part of
the weekend.

Better moisture influx from the E SE late week and into the
weekend will yield higher pops over eastern parts of the area. No
significant variation in daily temperatures are expected, with
highs around 90 and lows in the upper 60s lower 70s. Warmer high
temperatures are possible this weekend into early next week if we
can end up within a dry northerly flow on the western flank of the
low and or underneath an expanding tx ridge.

13

Marine
Weak surface high pressure extending west across the northern
gulf coast states will maintain a generally light southeast to
east flow and low seas over the next couple of days. Winds are
expected to turn more northeasterly late in the week and over the
weekend as an area of low pressure lifts north across the central
gulf of mexico and moves toward the north central gulf coast.

Isolated to scattered showers and thunderstorms are expected
Wednesday with activity becoming more numerous Thursday into the
weekend as the low approaches. At this time, only slightly
elevated winds and seas are expected, mainly over the gulf
waters east of intracoastal city. Marine interests should continue
to monitor the latest forecasts from this office and nhc
regarding possible tropical or sub-tropical development of this
low pressure area.

13

Preliminary point temps pops
Aex 92 69 91 69 40 40 50 20
lch 90 72 89 72 50 30 50 30
lft 91 73 91 73 50 30 50 40
bpt 89 72 89 72 40 20 40 30

Lch watches warnings advisories
La... None.

Tx... None.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 0 mi44 min Calm G 1
AMRL1 - 8764227 - Amerada Pass, LA 16 mi44 min ENE 1 G 2.9 76°F 80°F1015.6 hPa
EINL1 22 mi44 min SSE 7 G 8 80°F 79°F1015 hPa73°F
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi44 min SSE 1.9 G 1.9
MRSL1 - Marsh Island, LA / CSI03 46 mi92 min 8.9 G 11 81°F

Wind History for Tesoro Marine Terminal, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patterson Memorial, LA6 mi96 minESE 310.00 miFair73°F73°F100%1015.7 hPa
Salt Point, LA17 mi1.7 hrsN 0 mi0°F0°F%1015 hPa

Wind History from PTN (wind in knots)
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Last 24hrCalmCalmE3Calm3CalmCalmSE8S6E6S8S7S10S7S6CalmCalmCalmCalmCalmCalm--SE3Calm
1 day agoCalmCalmNE3E4NE5NE5E6CalmSE5S7S9N8SW9SE4CalmNE3CalmCalmCalmCalmNE3CalmCalmCalm
2 days agoCalmCalmSE5E7SE65S4SE7SE7SE9SE8S6S10S7S3CalmS4CalmE4CalmCalmCalmCalmCalm

Tide / Current Tables for Tesoro Marine Term., Atchafalaya River, Louisiana
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Tesoro Marine Term.
Click for Map
Wed -- 01:24 AM CDT     0.40 feet High Tide
Wed -- 02:36 AM CDT     Moonset
Wed -- 06:07 AM CDT     Sunrise
Wed -- 09:16 AM CDT     0.16 feet Low Tide
Wed -- 02:29 PM CDT     Moonrise
Wed -- 03:07 PM CDT     0.46 feet High Tide
Wed -- 07:55 PM CDT     Sunset
Wed -- 10:04 PM CDT     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.40.40.30.30.30.20.20.20.20.20.30.40.40.50.40.40.40.30.30.30.30.3

Tide / Current Tables for Shell Island, Atchafalaya Bay, Louisiana
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Shell Island
Click for Map
Wed -- 12:19 AM CDT     1.14 feet High Tide
Wed -- 02:36 AM CDT     Moonset
Wed -- 05:22 AM CDT     0.47 feet Low Tide
Wed -- 06:08 AM CDT     Sunrise
Wed -- 02:03 PM CDT     1.48 feet High Tide
Wed -- 02:29 PM CDT     Moonrise
Wed -- 07:21 PM CDT     0.73 feet Low Tide
Wed -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.110.80.60.50.50.50.60.811.21.31.41.51.41.210.80.70.70.80.91

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Lake Charles, LA (6,6,7,8)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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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.