Monday, March18, 2019 L-36.com


Marine Weather and Tides
Patterson, LA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:07AMSunset 7:14PM Monday March 18, 2019 11:26 AM CDT (16:26 UTC) Moonrise 3:51PMMoonset 4:36AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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- 1035 Am Cdt Mon Mar 18 2019
.small craft exercise caution in effect until 7 pm cdt this evening...
Rest of today..Northeast winds 15 to 20 knots. Seas 1 to 3 feet.
Tonight..Northeast winds 15 to 20 knots. Seas 1 to 3 feet.
Tuesday..Northeast winds 15 to 20 knots. Seas 1 to 3 feet.
Tuesday night..Northeast winds 10 to 15 knots. Seas 1 foot or less.
Wednesday..Northeast winds 10 to 15 knots. Seas 1 foot or less.
Wednesday night..Northwest winds up to 5 knots. Seas 1 foot or less.
Thursday..North winds 5 to 10 knots. Seas 1 foot or less.
Thursday night..North winds 5 to 10 knots. Seas 1 foot or less.
Friday..East winds 5 to 10 knots. Seas 1 foot or less.
Friday night..Southeast winds 5 to 10 knots. Seas 1 foot or less.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 1035 Am Cdt Mon Mar 18 2019
Synopsis.. Moderate to strong northeast winds will prevail through Tuesday, resulting in exercise caution over portions of the coastal waters. Winds will diminish some by midweek as high pressure builds into the region, with offshore flow becoming re-established on Thursday as a cold front moves through the region. High pressure will build south and east in the wake of the front, with onshore flow expected to develop by late in the week.


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 181557
afdlch
area forecast discussion
national weather service lake charles la
1057 am cdt Mon mar 18 2019

Discussion
Wx map shows 1033mb surface high over NE ia mo this morning, with
the southern portion of this high continuing to ridge over our
region. Cirrus continues to stream over the region, stemming from
an upper level disturbance in the southwest flow aloft generating
considerable cloud cover and showers over the western gulf and
lower texas. This precipitation expected to stay well south of se
tx S la, perhaps affecting the outer edge of the coastal waters
with isolated showers. Ongoing forecast shows this across the
outer coastal waters. For inland areas, expecting highs in the
upper 60s. Ongoing forecast looks good.

Dml

Prev discussion issued 556 am cdt Mon mar 18 2019
discussion...

for the 03 18 19 1200 utc TAF package.

Aviation...

vfr will prevail through the forecast period amid high cirrus. Ne
winds to increase a bit mid late morning and be gusty at times
before settling down early evening.

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prev discussion... Issued 445 am cdt Mon mar 18 2019
synopsis...

latest ua analysis and WV imagery shows the active southern branch
of the jet continues to spread moisture acrs the gulf and adjacent
coastal areas. Another piece of energy embedded in the
west southwest flow aloft is crossing south tx and this is where
the closest precip is noted on the regional radar mosaic. After a
bit of a break in the cloud cover late yesterday, morning ir
satellite images show a little more in the way of mid and high
clouds to the southwest that are beginning to move into the area.

At the sfc, high pres is centered over the red river valley, with
a secondary ridge of high pres acrs the midwest. Winds acrs the
area are light and northeasterly or near calm, with temperatures
about 5 to 10 degrees below normal this morning, ranging from the
upper 30s to lower middle 40s.

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discussion...

a generally benign weather pattern is setting up for much of the
upcoming week. The disturbance near south tx this morning is
progged to slide east today. Precipitation associated with this
feature will stay well south of the area, but an increase in mid
and high clouds can be expected today. The sfc high over the
midwest will slide southeast over the ohio valley, keeping an east
to northeast flow over the region. Despite fairly chilly
conditions this morning, expect temperatures will rebound this
aftn into the middle and upper 60s.

Dry weather is expected to persist through the week, with southern
stream energy aloft expected to shift east on Tuesday which should
spell an end to the intermittent mid and high clouds, and a little
more sunshine, for a few days. Shortwave energy dropping south
acrs the midwest and into the lower ms valley Wednesday into
Thursday will drive a weak front through the region. This boundary
is not expected to bring more than a slight increase in clouds and
a reinforcement of high pres over the region, with no significant
variation in temperatures. Lows through the week are expected to
be in the middle upper 40s to lower 50s and highs in the upper 60s
to lower 70s.

A gradual warming trend will take place by late in the week as the
sfc high becomes situated over the eastern conus, and modest
shortwave ridging passes over the region ahead of the next low
pres system taking shape over the western states. By Friday into
Saturday, wind profiles show southerly low level winds
transitioning to southwesterly aloft as the upper low trough
emerges over the high plains, with moisture increasing over the
region. Showers and tstms are expected to begin developing acrs
tx, spreading eastward into the area by Saturday morning. Another
shortwave following behind the initial system will maintain a
period of disturbed weather through the weekend.

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marine...

a tight pres gradient between lower pres over the southern gulf
and high pres over the midwest will maintain modt to strong ne
winds today into Tuesday. Exercise caution headlines have been
expanded in area to include all of the outer coastal waters as
well as 0-20 nm east of intracoastal city, and extended in time
through at least this evening. Elevated winds are expected to
persist into Tuesday so anticipate that scec will need to be
extended further. Winds will diminish and become somewhat vrbl by
midweek as high pres builds south, with offshore flow bcmg
reinforced by another frontal passage Thursday. Winds will shift e
then SE by the end of the week as sfc high pres moves over the
eastern us. Dry weather is expected through the week, with the
next chc of rain not expected until next weekend.

24

Preliminary point temps pops
Aex 68 44 66 43 0 0 0 0
lch 69 45 68 46 0 0 0 0
lft 69 45 67 45 0 0 0 0
bpt 69 48 69 49 0 0 0 0

Lch watches warnings advisories
La... None.

Tx... None.

Gm... Small craft exercise caution until 7 pm cdt this evening for
gmz455-470-472-475.

Public... 08


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EINL1 0 mi38 min E 9.9 G 11 56°F 53°F1025.8 hPa42°F
AMRL1 - 8764227 - Amerada Pass, LA 6 mi38 min NE 4.1 G 7 57°F 53°F1026.3 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 22 mi38 min NE 9.9 G 13 1026.7 hPa
MRSL1 - Marsh Island, LA / CSI03 36 mi86 min 13 G 15 55°F

Wind History for LAWMA, Amerada Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salt Point, LA15 mi33 minVar 3 mi0°F0°F%1026.5 hPa
Patterson Memorial, LA24 mi30 minNE 710.00 miFair56°F43°F62%1027 hPa

Wind History from P92 (wind in knots)
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Last 24hr5435633CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3Calm33333
1 day ago4564433CalmCalmCalmCalmN3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN55
2 days agoN7N74N33N4N64N6N36N6
G16
44335335Calm3N43

Tide / Current Tables for Eugene Island, Louisiana
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Eugene Island
Click for Map
Mon -- 12:34 AM CDT     1.65 feet High Tide
Mon -- 05:35 AM CDT     Moonset
Mon -- 06:47 AM CDT     -0.58 feet Low Tide
Mon -- 07:12 AM CDT     Sunrise
Mon -- 04:08 PM CDT     1.79 feet High Tide
Mon -- 04:50 PM CDT     Moonrise
Mon -- 07:15 PM CDT     Sunset
Mon -- 07:26 PM CDT     1.25 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.61.410.4-0.1-0.5-0.6-0.5-0.300.40.81.21.51.71.81.71.41.31.31.31.41.5

Tide / Current Tables for Shell Island, Louisiana
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Shell Island
Click for Map
Mon -- 01:53 AM CDT     1.26 feet High Tide
Mon -- 05:35 AM CDT     Moonset
Mon -- 07:11 AM CDT     Sunrise
Mon -- 08:11 AM CDT     -0.45 feet Low Tide
Mon -- 04:49 PM CDT     Moonrise
Mon -- 05:27 PM CDT     1.37 feet High Tide
Mon -- 07:15 PM CDT     Sunset
Mon -- 08:50 PM CDT     0.96 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.21.31.20.90.50.1-0.3-0.4-0.4-0.3-0.10.20.50.81.11.31.41.31.21111

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Lake Charles, LA (12,3,4,5)
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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.