Saturday, November18, 2017 L-36.com


Marine Weather and Tides
Lake Charles, 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 6:40AMSunset 5:15PM Saturday November 18, 2017 1:15 PM CST (19:15 UTC) Moonrise 6:40AMMoonset 5:47PM 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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GMZ432 Calcasieu Lake- 934 Am Cst Sat Nov 18 2017
.small craft advisory in effect from 6 pm cst this evening through Sunday morning...
Rest of today..Southwest winds 10 to 15 knots. Lake waters choppy. Chance of showers in the afternoon.
Tonight..North winds 15 to 20 knots. Lake waters rough. Slight chance of rain showers in the evening.
Sunday..North winds 10 to 15 knots. Lake waters choppy.
Sunday night..Northeast winds 5 to 10 knots. Lake waters a light chop.
Monday..East winds 5 to 10 knots. Lake waters a light chop.
Monday night..East winds 5 to 10 knots. Lake waters a light chop.
Tuesday..East winds 5 to 10 knots. Lake waters a light chop. Chance of rain showers.
Tuesday night..Northeast winds 5 to 10 knots. Lake waters a light chop. Chance of rain showers.
Wednesday..North winds 10 to 15 knots. Lake waters choppy. Slight chance of rain showers.
Wednesday night..North winds 10 to 15 knots. Lake waters choppy.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 934 Am Cst Sat Nov 18 2017
Synopsis.. Moderate southerly winds can be expected ahead of a strong cold front this afternoon. The front is forecast to push through the coastal waters this evening, bringing a chance of showers, followed by a strong offshore flow and very rough seas that will persist into Sunday. East to southeast winds are forecast to develop Monday, with northerly winds returning with the next front on Tuesday night.

7 Day Forecast for Marine Location Near Lake Charles, LA
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location: 30.23, -93.22     debug


Area Discussion for - Lake Charles, LA
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Fxus64 klch 181746
afdlch
area forecast discussion
national weather service lake charles la
1146 am cst Sat nov 18 2017

Discussion
For 18z TAF issuance...

Aviation
Sfc obs show partly sunny skies with mostlyVFR conditions across
the across the area going into this afternoon. The cap has
suppressed any shower activity so far this morning, but expect
scattered showers to increase just ahead and along the front later
this afternoon. Kept vcsh with tempo -shra and lowered MVFR
ceilings for all sites this afternoon. After fropa, precip should
come to an end while ceilings lift. Main story through the entire
period looks to be very elevated winds, initially from the sw
before veering to a nrly direction behind the front.

Rackley

Prev discussion issued 1015 am cst Sat nov 18 2017
update...

a strong cold front is moving across northeast and north central
texas this morning. This front will continue to progress toward
the southeast and reach the forecast area by mid afternoon and
move off the coast early this evening.

Ahead of the front, breezy southwest winds will occur across the
forecast area with very warm and humid conditions. Vad winds on
area radars show 25 to 30 knots just off the surface, so some
mixing will take place and bring some of these wind gusts down to
the surface. Therefore, will keep inherited wind advisory going as
already sustained winds are around 20 mph with gusts to near 30
mph. Made some adjustments to the wind grids to increase wind
speeds to bring them in line with the wind advisory.

The 18 12z upper air sounding from klch shows a decent cap in
place around 85h. Therefore, have removed pops for this morning,
as it will take some decent frontal lifting to get scattered
showers going, and this will begin later in the afternoon when
front arrives.

Otherwise, remainder of the forecast is unchanged at this time.

Rua
prev discussion... Issued 602 am cst Sat nov 18 2017
discussion...

for 12z TAF issuance.

Aviation...

not many changes to previous TAF thinking. Sfc obs show generally
partly cloudy skiesVFR conditions... The primary exception is kaex
where MVFR ceilings are occurring within a larger area of lower
clouds over cntl NRN la. Forecast soundings indicate increasing
low-level moisture as we head through the morning and MVFR
ceilings are expected at all sites. Widely scattered showers are
progged to begin developing during the early afternoon per high-
res guidance... With the best shot at shower activity coming
along just ahead of the expected cold front later this afternoon.

After fropa, precip should come to an end while ceilings lift.

Main story through the entire period looks to be very elevated
winds, initially from the SW before veering to a nrly direction
behind the front.

25
prev discussion... Issued 451 am cst Sat nov 18 2017
synopsis...

warmer surface temperatures on the back of increasing southerly
flow has only allowed temperatures to fall into the upper 60s to
lower 70s this morning. Lower pressure across north texas and
central oklahoma marked the leading edge of a strong cold front
traversing the great lakes to EL paso texas. Radar activity was
quiet this morning with capping evident on the 00z lch sounding
last night near the 5-8k level. Satellite imagery showed low level
clouds advancing parallel to the cold front on a southwest to
northeast axis.

Discussion...

fog was absent this morning thanks to increasing southerly winds.

Higher dewpoint tongue of moisture was evident along the southeast
texas coast and is expected to move into southwest louisiana later
this morning into the afternoon.

Across the upper levels... A storm system continued to move into
the central plains carving out a deeper trough axis. This is
expected to continue today with an associated strong canadian
cold front moving across the forecast area later this afternoon
and evening. A wind advisory is in effect this afternoon until
midnight as 20 to 30 mph winds develop behind the cold front.

The overall moisture profile has not changed to much as the pwat
remain around 1.3 inches. However, decent low level convergence
and frontal lift should be enough to produce scattered showers
ahead of the front. Instability still looks rather weather weak
ahead of the front, with best upper level dynamics well off to the
northeast. Therefore, will keep the predominate weather as
showers.

A much cooler and drier air mass will then move in behind the
front for the remainder of the weekend. Surface ridge looks to
settle across the forecast area on Sunday night, and this will
likely provide rather chilly temperatures, with mid 30s for
central louisiana and the lakes area of southeast texas, with
upper 30s possible down to the usual cool spots of the i-10
corridor.

Surface ridge will move off to the east on Monday with some return
flow moisture and a moderation in temperatures.

Better agreement today in guidance for Tuesday through the
remainder of the holiday week. The next canadian cold front is
expected on Tuesday night. Operational ECMWF still looks to be on
the high end of the ensemble range when it comes to being too
robust on the return flow moisture and thus the pops for Tuesday
into early Wednesday. Therefore, will again go a little below
superblend numbers for those days and closer to a ECMWF ensemble
mean GFS compromise, which would bring low end chance pops for
Tuesday daytime, with a gradual decrease in pops Tuesday night
into Wednesday morning.

Guidance is also in better agreement with sweeping the front out
into the gulf for thanksgiving into next Friday, thus keeping
better moisture and any gulf low development further to the south
and east of the forecast area. Therefore, a dry and rather cooler
turkey day into Friday looks to be in the works.

Marine...

moderate southerly winds will continue ahead of a cold front
advancing across north texas and central oklahoma this morning.

Small craft should exercise caution for the first half of today.

The strong cold front will sweep into the coastal waters early
this evening with good cold air advection moving over the
relatively warm gulf waters. Frequent gale force wind gusts up to
42 knots will trigger gale warnings for the nearshore and
offshore coastal waters from this evening through Sunday morning.

Winds will begin to decrease Sunday night as the high pressure
system behind the cold front settles across the coastal waters.

Preliminary point temps pops
Aex 41 62 35 62 0 0 0 0
lch 47 64 39 64 10 0 0 0
lft 47 63 39 64 20 0 0 0
bpt 46 65 42 64 0 0 0 0

Lch watches warnings advisories
La... Wind advisory until midnight cst tonight for laz027>033-041>045-
052>055-073-074.

Tx... Wind advisory until midnight cst tonight for txz180-201-215-216-
259>262.

Gm... Small craft advisory from 6 pm to 9 pm cst this evening for
gmz450-452-455-470-472-475.

Small craft exercise caution until 6 pm cst this evening for
gmz450-452-455-470-472-475.

Gale warning from 9 pm this evening to 9 am cst Sunday for
gmz450-452-455-470-472-475.

Small craft advisory from 6 pm this evening to 9 am cst Sunday
for gmz430-432-435.

Aviation... 14


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KCVW 31 mi15 min WSW 7 G 16 77°F 73°F

Wind History for Calcasieu Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chenault Airpark, LA4 mi80 minSW 22 G 2810.00 miMostly Cloudy and Breezy82°F69°F66%1010.8 hPa
Lake Charles Regional Airport, LA8 mi22 minSW 18 G 3010.00 miA Few Clouds and Breezy82°F66°F60%1010.9 hPa
Southland Field, LA11 mi20 minSW 16 G 2410.00 miMostly Cloudy83°F67°F58%1010.8 hPa

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Last 24hr--S12
G18
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S7S6SE4S4SE4SE3SE5S3S6S7S6S7S5--S6--------SW22
G28
1 day agoSE4S3CalmE4SE4SE5SE3CalmE7SE4CalmE4SE3E5CalmE3E3--CalmE7SE7S10S11
G17
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2 days agoCalmCalmCalmCalmSW4SW3S3E5SE6E7E3E3CalmCalmCalmCalmE8--E4CalmCalmCalm----

Tide / Current Tables for Lake Charles, Calcasieu River, Louisiana
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Lake Charles
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Sat -- 02:12 AM CST     0.73 feet Low Tide
Sat -- 05:42 AM CST     New Moon
Sat -- 06:16 AM CST     0.96 feet High Tide
Sat -- 06:39 AM CST     Moonrise
Sat -- 06:40 AM CST     Sunrise
Sat -- 01:39 PM CST     -0.05 feet Low Tide
Sat -- 05:14 PM CST     Sunset
Sat -- 05:46 PM CST     Moonset
Sat -- 08:51 PM CST     1.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.80.70.80.80.910.90.80.60.40.20.1-0-00.10.30.50.811.11.21.11

Tide / Current Tables for Orange (Old Navy Base), Texas
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Orange (Old Navy Base)
Click for Map
Sat -- 01:10 AM CST     0.57 feet Low Tide
Sat -- 05:14 AM CST     0.70 feet High Tide
Sat -- 05:42 AM CST     New Moon
Sat -- 06:41 AM CST     Moonrise
Sat -- 06:42 AM CST     Sunrise
Sat -- 01:08 PM CST     -0.05 feet Low Tide
Sat -- 05:17 PM CST     Sunset
Sat -- 05:49 PM CST     Moonset
Sat -- 09:50 PM CST     0.71 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.60.70.70.70.60.50.40.20.1-0-0.1-00.10.20.40.50.60.70.70.70.7

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 (14,3,4,5)
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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.