Monday, September20, 2021
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Marine Weather and Tides
Leesville, LA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:58AMSunset 7:12PM Monday September 20, 2021 1:35 AM CDT (06:35 UTC) Moonrise 6:27PMMoonset 5:32AM Illumination 98% Phase: Waxing Gibbous; Moon at 14 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- 1001 Pm Cdt Sun Sep 19 2021
Rest of tonight..South winds around 5 knots. Lake waters smooth.
Monday..South winds 5 to 10 knots. Lake waters a light chop. Chance of showers in the morning. Slight chance of Thunderstorms through the day. Slight chance of showers in the afternoon.
Monday night..South winds 5 to 10 knots. Lake waters a light chop.
Tuesday..Southwest winds around 5 knots. Lake waters smooth. Chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southwest winds around 5 knots becoming north 10 to 15 knots after midnight. Lake waters smooth increasing to choppy after midnight. Showers likely in the evening. Chance of Thunderstorms through the night. Chance of showers after midnight.
Wednesday..North winds 10 to 15 knots. Lake waters choppy.
Wednesday night..Northeast winds 10 to 15 knots. Lake waters choppy.
Thursday..Northeast winds 5 to 10 knots. Lake waters a light chop.
Thursday night..Northeast winds 5 to 10 knots. Lake waters a light chop.
Friday..Northeast winds 5 to 10 knots. Lake waters a light chop.
Friday night..Northeast winds around 5 knots. Lake waters smooth.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 1001 Pm Cdt Sun Sep 19 2021
Synopsis.. Light onshore flow today will continue into Monday with a chance for scattered showers or storms over coastal waters. Heavy rains, gusty winds and lightning are all possible in and around these storms. Winds will strengthen and turn offshore Wednesday with increasing seas as a cold front pushes down into the gulf of mexico. Winds and waves will taper down on Thursday as high pressure continues to build into the northwest gulf waters.


7 Day Forecast for Marine Location Near Leesville, LA
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location: 31.15, -93.26     debug


Area Discussion for - Lake Charles, LA
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FXUS64 KLCH 200419 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 1119 PM CDT Sun Sep 19 2021

DISCUSSION.

For the 20/06Z TAF Issuance.

AVIATION.

For the remainder of the night, light winds, stable conditions, and just some left over high level cloudiness, will set the stage for some patchy fog, especially locations that received rainfall and with wet grounds. Visibilities will be mainly in the MVFR range. Any fog that forms should dissipated shortly after sunrise. Scattered showers and thunderstorms will be possible again during Monday afternoon.

Rua

PREV DISCUSSION. /issued 905 PM CDT Sun Sep 19 2021/

UPDATE . Diurnal convection has dissipated with the loss of daytime heating. Expecting some nocturnal shower activity to develop over the coastal waters before daybreak, and mainly stay over the coastal waters. With clearing skies, light winds, and some wet grounds, patchy fog can be expected during the overnight. Currently forecast is on track and no significant changes planned at this time.

Rua

PREV DISCUSSION . /issued 404 PM CDT Sun Sep 19 2021/

DISCUSSION . SHORT TERM [Tonight through Tuesday Night] An upper level disturbance continues to sit across the northern gulf this afternoon providing support for scattered showers and thunderstorms. With PWAT values hovering around 1.8, some of these storms have been producing very heavy rainfall that has led to some isolated areas of street flooding. Despite the upper level support, virtually all short range guidance shows the convection dissipating around sunset this evening.

Very weak pressure gradient overnight will allow winds to calm with models once again showing a pretty good fog signal early Monday morning. Added patchy fog wording for the 09 to 13Z time frame as fog should dissipate quickly beneath clear skies.

The previously mentioned upper level feature will retreat to the north Monday and become absorbed by a digging upper level trof. This will leave the region within a broad weakness, but diurnally driven convection is expected to be less widespread than that being seen this afternoon.

Tuesday will see another round of afternoon convection, but the bigger story will be the approach of the first significant cold front of the season late Tuesday evening. The front will be accompanied by a semi-organized line of heavy rain producing convection, but the vast majority of these are expected to remain sub severe.

LONG TERM [Wednesday through Sunday] .

The start of the long term period will herald a much awaited change from the recent wet weather pattern. By Wednesday morning, a cold front is expected to be well east and south of the area, with northerly winds ushering a cooler and drier airmass into the region. Aloft, a deep longwave trough axis will extend acrs IL southward acrs the lower MS Valley. An amplified pattern with a mean trough over the eastern CONUS and ridging over the southern Rockies will keep a dry northwesterly flow aloft over the region through the bulk of the long term period.

Any lingering showers early Wednesday morning should quickly end as drier air filters into the region. A markedly drier airmass should stick around through the end of the week and into the weekend, with precip water values between 0.5 and 0.7 inches Thursday and Friday (by comparison, typical normal PW values are between 1.43 and 1.48 inches per SPC Climatology). Sfc high pres building over the region will provide a northerly flow through the end of the week, with the ridge axis expected to settle over the region by next weekend, allowing temperatures and moisture levels to moderate some.

High temperatures on Wednesday will be about 10 degrees cooler than highs on Tuesday with max temps expected to top out only around 80 degrees. Overnight lows will be generally in the mid to upper 50s acrs much of the area Thursday and Friday mornings, with highs near 80. A gradual moderation in temperatures will occur into next weekend, but temperatures should remain below late September normals with comfortable and pleasant conditions expected.

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MARINE . Light onshore flow today will continue into Monday with a chance for scattered showers or storms over coastal waters. Heavy rains, gusty winds and lightning are all possible in and around these storms. Winds will strengthen and turn offshore Wednesday with increasing seas as a cold front pushes down into the Gulf of Mexico. Winds and waves will taper down on Thursday as high pressure continues to build into the northwest gulf waters.

PRELIMINARY POINT TEMPS/POPS. AEX 71 90 72 89 / 10 20 0 50 LCH 73 88 75 89 / 10 30 0 50 LFT 73 88 75 89 / 10 40 0 50 BPT 73 90 74 90 / 50 20 0 40

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
LCLL1 - 8767816 - Lake Charles, LA 64 mi47 min 77°F 80°F1012.6 hPa
CAPL1 - 8768094 - Calcasieu Pass, LA 96 mi47 min S 8.9 G 11 82°F 84°F1010.8 hPa
PORT2 - 8770475 - Port Arthur, TX 96 mi47 min SSE 1.9 G 4.1 79°F 81°F1012.4 hPa

Wind History for Port Arthur, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Polk, Polk AAF Ft Polk, LA8 mi37 minESE 310.00 miPartly Cloudy73°F73°F99%1012.4 hPa
Ft. Polk - Peason Ridge, LA17 mi38 minN 04.00 miFog/Mist72°F70°F94%1011.9 hPa
Ft. Polk - Fullerton Landing Strip, LA19 mi41 minN 05.00 miFog/Mist72°F69°F91%1014.6 hPa

Link to 5 minute data for KPOE

Wind History from POE (wind in knots)
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Last 24hrCalmCalmCalmCalmNE3CalmE4SE3S3SE3CalmNE5S11NW4NE6E4CalmCalmCalmCalmCalmCalmSE3SE3
1 day agoN3CalmCalmCalmCalmCalmN4CalmCalmCalmCalmSE4E3E6N3SE5CalmCalmCalmCalmE4SE4SW5SE4
2 days agoCalmCalmW3CalmS3S3SW3SW4SW5W5SW5CalmW4NW4W5N3NW3CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Calcasieu Pass, Lighthouse wharf, Louisiana
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Calcasieu Pass
Click for Map
Mon -- 03:41 AM CDT     1.94 feet High Tide
Mon -- 06:33 AM CDT     Moonset
Mon -- 07:00 AM CDT     Sunrise
Mon -- 09:27 AM CDT     0.64 feet Low Tide
Mon -- 03:11 PM CDT     1.89 feet High Tide
Mon -- 06:54 PM CDT     Full Moon
Mon -- 07:11 PM CDT     Sunset
Mon -- 07:26 PM CDT     Moonrise
Mon -- 09:41 PM CDT     0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.21.61.91.91.81.51.10.80.70.70.81.11.51.81.91.81.61.20.80.40.10.10.3

Tide / Current Tables for Calcasieu Pass, Lighthouse wharf, Louisiana (2)
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Calcasieu Pass
Click for Map
Mon -- 03:02 AM CDT     2.23 feet High Tide
Mon -- 06:33 AM CDT     Moonset
Mon -- 07:00 AM CDT     Sunrise
Mon -- 09:15 AM CDT     1.51 feet Low Tide
Mon -- 02:00 PM CDT     2.30 feet High Tide
Mon -- 06:54 PM CDT     Full Moon
Mon -- 07:11 PM CDT     Sunset
Mon -- 07:26 PM CDT     Moonrise
Mon -- 09:35 PM CDT     0.73 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.82.12.22.221.91.71.61.51.51.722.22.32.221.71.41.10.90.80.70.9

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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