Thursday, July29, 2021
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Marine Weather and Tides
Houma, 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 6:19AMSunset 7:58PM Thursday July 29, 2021 3:36 AM CDT (08:36 UTC) Moonrise 10:47PMMoonset 10:43AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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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GMZ550 Coastal Waters From Port Fourchon La To Lower Atchafalaya River La Out 20 Nm- Coastal Waters From The Southwest Pass Of The Mississippi River To Port Fourchon Louisiana Out 20 Mile- 819 Pm Cdt Wed Jul 28 2021
Rest of tonight..South winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms after midnight.
Thursday..Southwest winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday night..West winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds.
Friday..West winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday night..West winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms after midnight.
Saturday..West winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday night..West winds 5 to 10 knots. Seas 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms after midnight.
Sunday..West winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms through the night.
Monday..West winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers in the morning. Chance of Thunderstorms through the day. Showers likely in the afternoon.
Monday night..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers in the evening. Chance of Thunderstorms through the night. Showers likely after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 819 Pm Cdt Wed Jul 28 2021
Synopsis..High pressure will remain centered over the southern plains. A weak front will move toward the gulf coast but will stall just inland for the remainder of next week.


7 Day Forecast for Marine Location Near Houma, LA
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location: 29.58, -90.71     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 290449 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 1149 PM CDT Wed Jul 28 2021

AVIATION. 06Z TAF Package . Overall most temrinals should remain in VFR status. There may be some low clouds trying to develop and possibly some light fog around MCB but most should remain in VFR through the forecast. Scattered low to mid clouds will be in place tomorrow and we could see convection try to pop again around and after 18z. /CAB/

PREV DISCUSSION. /issued 314 PM CDT Wed Jul 28 2021/

SHORT TERM . Tonight through Friday . More of the same hot, muggy (gross) weather is expected to continue for the next couple of days.

The summertime pattern continues for the next few days. Afternoon and early evening showers will be possible tonight and the next few days. These showers will be isolated to scattered, and the main risks will be gusty winds, frequent lightning, and locally heavy rainfall inside thunderstorm development (especially given the higher PW values over the next couple days). Additionally, heat will be a main concern as we move into the next few days. A heat advisory is in effect from 9am to 7pm Thursday and Friday for most of the area. Heat index temperatures could reach 105 to 110 degrees. It will be very important for people to stay hydrated while spending time outside over the next few days. In addition, it is also worth noting that these temperatures will be a risk for the vulnerable populations in our area. Afternoon showers could provide some reprieve from the heat, but overall, given the abundant moisture present, it will be hot for most of the area. Stay cool and hydrated over the next few days whenever possible! MSW

LONG TERM . Saturday through Tuesday . Saturday and Sunday, summertime pattern continues over the area. Scattered showers and storms will be possible, mainly during the afternoon hours. These storms will primarily have the threat for gusty winds, frequent lightning, and locally heavy rainfall. Heat will also be a concern as we move into the weekend. Saturday and Sunday heat index temperatures will be very similar to the next few days, likely approaching 105 to 110 degrees. So, remembering to hydrate when outside will be critical! Again, like Thursday and Friday, there will be the chance that an afternoon shower could provide some reprieve for some lucky locations, but in general, it will be hot this weekend as well. Stay cool and hydrated when spending time outdoors this weekend!

Monday and Tuesday, another familiar pattern returns to potentially enhance rain chances again. An upper level low pressure system is expected to move through the area and set up a lingering boundary, enhancing rain chances for the region. Some southerly winds will act to enhance lifting in the atmosphere next week. PW values will be just above 2", which will be above the 75th percentile for the SPC sounding climatology. Rainfall rates could be fairly high these two days, and heavy rainfall will be a threat from this system moving through, given the parameters. Currently, models are showing the greatest risk of heavy rainfall along and north of the I-10/I-12 corridor. The models are still a bit uncertain about the timing of this system or how far south this system will really progress. More details will be known as we get closer to the weekend. Regardless, the main threats will be heavy rainfall, gusty winds, and frequent lightning. /MSW/

MARINE . Winds will be calm (<15 knots) and southerly through Friday morning. Friday through Wednesday, winds will be westerly to southwesterly and calm (<15 knots). Wave heights will correspond to the wind speeds. MSW

PRELIMINARY POINT TEMPS/POPS. MCB 94 75 95 75 / 50 20 40 0 BTR 94 76 95 76 / 50 20 50 10 ASD 94 77 96 78 / 50 30 50 10 MSY 95 81 97 81 / 50 20 50 10 GPT 93 78 95 78 / 50 30 40 10 PQL 94 76 95 78 / 50 30 40 10

LIX WATCHES/WARNINGS/ADVISORIES. LA . Heat Advisory from 9 AM to 7 PM CDT Thursday for LAZ034>037-039- 046>050-056>061-063>065-070>072-075>078.

Heat Advisory from 9 AM to 7 PM CDT Friday for LAZ034>037-039- 046>050-056>061-063>065-070>072-075>078.

GM . None. MS . Heat Advisory from 9 AM to 7 PM CDT Thursday for MSZ068>071-077- 080>082.

Heat Advisory from 9 AM to 7 PM CDT Friday for MSZ068>071-077- 080>082.

GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BYGL1 - 8762482 - Bayou Gauche, LA 21 mi48 min WSW 1.9 G 2.9 80°F 91°F1015.5 hPa
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 29 mi48 min Calm G 1 80°F 86°F1015.5 hPa
AMRL1 - 8764227 - Amerada Pass, LA 34 mi48 min SE 1.9 G 2.9 82°F 86°F1015.1 hPa
EINL1 38 mi48 min SSE 7 G 8 86°F 86°F1015.1 hPa78°F
CARL1 39 mi48 min 86°F
FREL1 39 mi48 min W 1.9 G 4.1 79°F 1014.3 hPa
NWCL1 - 8761927 - New Canal, LA 44 mi48 min SW 4.1 G 7 83°F 91°F1014.5 hPa
GISL1 - 8761724 - Grand Isle, LA 45 mi48 min 2.9 G 4.1 83°F 90°F1015.3 hPa

Wind History for West Bank 1, Bayou Gauche, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KHUM

Wind History from HUM (wind in knots)
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Last 24hr--------------------CalmN3NE8NE8------E6E6S9SE6S7S4SE4
1 day ago--------------------CalmCalmCalmSE5SE4Calm--S4NW7N3S6S9S9S8
2 days ago--------------------CalmCalmCalmN5N6CalmCalmSE6SE10SE10S7S7S5--

Tide / Current Tables for Cocodrie, Terrebonne Bay, Louisiana
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Cocodrie
Click for Map
Thu -- 01:45 AM CDT     0.41 feet Low Tide
Thu -- 06:21 AM CDT     Sunrise
Thu -- 09:56 AM CDT     0.65 feet High Tide
Thu -- 11:43 AM CDT     Moonset
Thu -- 04:54 PM CDT     0.57 feet Low Tide
Thu -- 07:56 PM CDT     Sunset
Thu -- 08:02 PM CDT     0.57 feet High Tide
Thu -- 11:33 PM CDT     0.56 feet Low Tide
Thu -- 11:46 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.40.40.40.50.50.50.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.60.6

Tide / Current Tables for Shell Island, Louisiana
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Shell Island
Click for Map
Thu -- 01:41 AM CDT     0.42 feet Low Tide
Thu -- 06:23 AM CDT     Sunrise
Thu -- 10:14 AM CDT     1.21 feet High Tide
Thu -- 11:46 AM CDT     Moonset
Thu -- 03:12 PM CDT     0.56 feet Low Tide
Thu -- 07:59 PM CDT     Sunset
Thu -- 10:50 PM CDT     1.01 feet High Tide
Thu -- 11:49 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.40.50.50.60.80.91.11.21.21.210.80.60.60.60.60.70.80.90.911

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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