Wednesday, January20, 2021
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Marine Weather and Tides
Cameron, LA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:09AMSunset 5:43PM Wednesday January 20, 2021 3:59 PM CST (21:59 UTC) Moonrise 11:51AMMoonset 12:00AM Illumination 50% Phase: First Quarter Moon; Moon at 7 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- 333 Pm Cst Wed Jan 20 2021
.dense fog advisory in effect from midnight tonight to 6 am cst Thursday...
Tonight..South winds 5 to 10 knots. Lake waters a light chop. Areas of fog after midnight.
Thursday..Southwest winds around 10 knots. Lake waters a light chop. Patchy fog in the morning. Chance of rain showers in the afternoon.
Thursday night..Southwest winds around 10 knots. Lake waters a light chop. Chance of showers.
Friday..West winds 5 to 10 knots. Lake waters a light chop. Chance of showers.
Friday night..Northeast winds 5 to 10 knots. Lake waters a light chop. Slight chance of rain showers in the evening.
Saturday..East winds 5 to 10 knots. Lake waters a light chop.
Saturday night..Southeast winds 5 to 10 knots. Lake waters a light chop. Slight chance of rain showers.
Sunday..South winds 10 to 15 knots. Lake waters choppy. Slight chance of showers in the morning, then chance of showers in the afternoon.
Sunday night..South winds 10 to 15 knots. Lake waters choppy. Slight chance of showers in the evening, then chance of showers after midnight.
Monday..Southwest winds 10 to 15 knots. Lake waters choppy. Chance of showers.
Monday night..West winds 5 to 10 knots becoming north after midnight. Lake waters a light chop. Slight chance of rain showers in the evening.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 333 Pm Cst Wed Jan 20 2021
Synopsis.. Light southeast winds will has allowed onshore flow to become established. This pattern will continue into Friday night, when the next weak boundary will move into the coastal waters. Areas of sea fog will develop in the coastal waters through Friday.


7 Day Forecast for Marine Location Near Cameron, LA
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location: 29.77, -93.34     debug


Area Discussion for - Lake Charles, LA
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FXUS64 KLCH 201832 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 1232 PM CST Wed Jan 20 2021

UPDATE. Stlt and observations continue to indicate areas of dense fog lingering across southern Jefferson county and southwest Cameron parish including the nearshore waters and lakes and bays. Extended the Dense fog advisory through 6 pm.

PREV DISCUSSION. /issued 1147 AM CST Wed Jan 20 2021/

DISCUSSION .

AVIATION . Fog and low cigs still lingering at KBPT, keeping them at IFR. With exception to them, all other sites are MVFR. Sea fog is expected to develop later this evening and push into the coastal terminals. LIFR conditions are expected, especially at KLCH and KBPT. Showers are expected tomorrow across the region. With it being the end of this TAF period, only KAEX reflects this starting around 15Z. Stigger/87

PREV DISCUSSION . /issued 919 AM CST Wed Jan 20 2021/

UPDATE . Have updated the zones and coastal waters to add dense fog in Sabine Pass through the noon hour. Otherwise the zones are holding well.

PREV DISCUSSION . /issued 559 AM CST Wed Jan 20 2021/

DISCUSSION . 12Z TAFS

AVIATION . An ill defined frontal boundary bisects the region this morning with light, overrunning showers displaced well to the north. Some patchy fog has been noted along the coastal terminals this morning, but winds have remained strong enough, thus far, to prevent significant visibility reductions. Some restrictions could still occur over the next couple of hours especially where winds calm. Otherwise, CIGs will alternate between MVFR and IFR through sunrise before improving to VFR by mid to late morning.

As the frontal boundary dissipates and weak high pressure slides east of the region, winds will veer easterly then southeasterly by this afternoon. This southeasterly flow over the relatively cool shelf waters will likely result in the development of sea fog this evening which will likely spread inland impacting coastal terminals tonight into Thursday morning.

Jones

PREV DISCUSSION . /issued 411 AM CST Wed Jan 20 2021/

SYNOPSIS . A pattern with mainly above normal temperatures and two stretches of shower activity will affect the forecast area through the weekend into early next week. Conditions will also become favorable for sea fog development later today through Friday.

Rua

DISCUSSION . A weak surface cold front is pushing gradually into the I-10 corridor and will spill over into the coastal waters this morning, before the front dissipates this afternoon. Some patchy fog is noted just ahead of the front over portions of south central Louisiana. Will watch closely to see if widespread dense fog can develop, but thinking is that northeast winds will develop behind the front that will help erode the fog and favor more of a low cloud deck. Not expecting any shower activity with this front as mid level capping remains over the area.

This front will dissipate over the coastal waters this afternoon with southerly winds returning as high pressure at the surface will ridge across from the east. These south winds will bring back low level moisture with dew points exceeding the cooler near shore shelf waters, and therefore, potential for sea fog development will exist for tonight, with some of the fog pushing into the region south of I-10.

Rain chances will increase later on Thursday as an upper level disturbance pushes east from the southwest US and across the area. Moisture values will be on the high side for this time of year with PWAT increasing above the 90th percentile level of 1.30 inches and will be over 1.50 inches. Capping in the mid levels will still be in place at first, so rain chances will be slight then increasing greatly by afternoon over the northern sections as convergence increases along an old stalled frontal boundary.

Rainfall, especially over the northern zones, will increase on Thursday night as the frontal boundary sags southward. PWAT values increase to over 1.75 inches which is over the max moving numbers for this time year. As flow becomes parallel to the surface frontal boundary, and low level moisture convergence increases, there will be some potential for heavy rainfall across portions of the upper southeast Texas into central Louisiana, mainly along and north of a Jasper to Marksville line, and this is where WPC has outlined the area in a Marginal Risk (level 1 out of 4) for excessive rainfall. At the moment will go with areawide numbers of 1 to 1.5 inches in that area, however locally higher amounts to 3 inches will be possible if any training of shower activity occurs.

An upper level disturbance will push the frontal system southward on Friday with shower activity following the front to the south, with rain chances tapering off north to south during the late afternoon into the evening as the front moves into the coastal waters.

Again, this front will stall over the coastal waters on Saturday, before dissipating. Then the cycle begins again for late in the weekend into early next week, with the approach of another upper level disturbance, and a slow moving weak cold surface cold front.

Rua

MARINE . A weak surface cold front will move into the coastal waters this morning and stall with winds becoming east and northeast. This front will dissipate during the afternoon with winds becoming onshore as a surface ridge moves off to the east. The onshore winds will then prevail through Friday. The south winds will bring moist air over relatively cooler near shore shelf waters and that will bring about favorable conditions for the formation of sea fog later today that will continue through Friday.

Another weak cold front will move into the coastal waters Friday night and again wash out on Saturday. This front will bring a chance for showers, along with another brief period of east to northeast winds.

Rua

PRELIMINARY POINT TEMPS/POPS. AEX 57 69 55 63 / 20 60 90 60 LCH 58 71 61 69 / 10 30 60 70 LFT 57 72 62 69 / 10 30 60 80 BPT 59 72 62 71 / 10 30 50 60

LCH WATCHES/WARNINGS/ADVISORIES. LA . Dense Fog Advisory until 6 PM CST this evening for LAZ073.

TX . Dense Fog Advisory until 6 PM CST this evening for TXZ215.

GM . Dense Fog Advisory until 6 PM CST this evening for GMZ430-450.



PUBLIC . 19


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CAPL1 - 8768094 - Calcasieu Pass, LA 0 mi59 min SE 7 G 11 60°F 57°F1021.4 hPa (-2.5)
TXPT2 27 mi59 min E 8 G 9.9 57°F 56°F1021.1 hPa (-3.0)
BKTL1 29 mi59 min 56°F
LCLL1 - 8767816 - Lake Charles, LA 32 mi59 min 65°F 54°F1023.2 hPa (-3.2)
PORT2 - 8770475 - Port Arthur, TX 32 mi59 min ENE 4.1 G 6 62°F 55°F1022.7 hPa (-3.0)
SRST2 - Sabine Pass, TX 37 mi59 min E 9.9 G 13 59°F 1022.9 hPa (-3.1)58°F

Wind History for Calcasieu Pass, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southland Field, LA25 mi64 minESE 510.00 miOvercast67°F57°F70%1023.4 hPa

Link to 5 minute data for KUXL

Wind History from UXL (wind in knots)
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Last 24hrS6SE6SE5CalmCalmCalmN3E5CalmE4N3CalmNE4NE3NE6NE9E8E6E6NE7E6SE4SE3SE4
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2 days agoW9W3NW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3E5E5SE9
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Tide / Current Tables for Calcasieu Pass, Lighthouse wharf, Louisiana
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Calcasieu Pass
Click for Map
Wed -- 02:54 AM CST     0.61 feet Low Tide
Wed -- 07:08 AM CST     Sunrise
Wed -- 09:36 AM CST     1.27 feet High Tide
Wed -- 11:50 AM CST     Moonrise
Wed -- 02:13 PM CST     1.05 feet Low Tide
Wed -- 03:03 PM CST     First Quarter
Wed -- 05:40 PM CST     Sunset
Wed -- 08:13 PM CST     1.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.80.60.60.70.80.91.11.21.31.31.21.21.11.11.11.11.21.41.51.51.51.41.2

Tide / Current Tables for Mermentau River entrance, Louisiana
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Mermentau River entrance
Click for Map
Wed -- 03:19 AM CST     0.14 feet Low Tide
Wed -- 07:07 AM CST     Sunrise
Wed -- 09:03 AM CST     0.95 feet High Tide
Wed -- 11:49 AM CST     Moonrise
Wed -- 01:41 PM CST     0.79 feet Low Tide
Wed -- 03:03 PM CST     First Quarter
Wed -- 05:39 PM CST     Sunset
Wed -- 07:27 PM CST     1.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.30.20.10.20.30.50.70.910.90.90.80.80.80.80.911.11.21.21.10.90.7

Weather Map
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wmap_A
GEOS 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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