Thursday, July29, 2021
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Marine Weather and Tides
New Orleans, 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 6:16AMSunset 7:57PM Thursday July 29, 2021 8:26 PM CDT (01:26 UTC) Moonrise 10:44PMMoonset 10:40AM Illumination 69% 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 351 Pm Cdt Thu Jul 29 2021
Tonight..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Friday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the afternoon.
Friday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms through the day.
Saturday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Sunday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Monday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers with Thunderstorms likely in the afternoon.
Monday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Showers likely and chance of Thunderstorms.
Tuesday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of Thunderstorms in the morning. Showers through the day. Thunderstorms in the afternoon.
Tuesday night..West winds near 5 knots. Waves 1 foot or less. 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- 351 Pm Cdt Thu Jul 29 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 New Orleans, LA
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location: 30.07, -90.06     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 292047 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 347 PM CDT Thu Jul 29 2021

SHORT TERM. Tonight through Saturday . Summertime pattern continues over the next few days. An isolated shower will be possible this evening. And isolated to scattered showers will be possible Friday and Saturday during the daytime afternoon and evening hours. These showers could have gusty winds and frequent lightning along with locally heavy rainfall.

The main concern over the next few days will be the heat risk. Heat Index temperatures are forecast to exceed 112 degrees in most locations both tomorrow and Saturday and an excessive heat warning and excessive heat watch has been issued for Friday and Saturday respectively. Areas inside the heat advisory over the next few days (mainly areas including and NW of Baton Rouge) are forecast to see temperatures between 108 and 112 degrees. The time frame with the biggest risk of heat illness will be between 9AM and 7PM CDT Friday and Saturday. It will be critical to stay hydrated if you are spending any time outdoors at all!

It is also worth noting that over the next few days for portions of the area, particularly for New Orleans, overnight low temperatures are not expected to reach below 80 degrees. Studies have shown that if overnight low temperatures cannot get below 80 degrees, then it is significantly harder for your body to cool itself. As a result, over the next few days, heat stress/heat illness will be particularly concerning due to the cumulative/additive effects of these conditions. The isolated showers can provide some relief, but they will be sparse and isolated. Please be safe over the next few days, especially when spending time outdoors. MSW

LONG TERM. Sunday through Wednesday . Sunday, the summertime pattern is expected to continue Sunday. Rainfall coverage increases some, and scattered showers will be likely Sunday afternoon with peak daytime heating. These showers have the potential for gusty winds, frequent lightning, and locally heavy rainfall. Heat will again be a main concern on Sunday with many locations expected to see heat index values between 108 and 112 degrees. A heat advisory will likely need to be issued for Sunday, but this will be looked at in greater detail in subsequent forecasts. Stay safe and hydrated when spending time outdoors!

Monday through Wednesday, an upper level trough is expected to move through the area and cause a boundary to linger over the area as it moves slowly southward. PW values are expected to be just over 2", which is above the 75th percentile for the sounding climatology. Southwesterly surface winds will help to fuel some moisture and warm air into the environment as well. Locally heavy rainfall will be a concern for Monday through Wednesday. Models are still in disagreement over the timing and amounts of the rainfall, but it is something we will be monitoring as we move toward the weekend. In addition to heavy rainfall, gusty winds and frequent lightning will be possible as well. MSW

AVIATION. VFR conditions prevail at all area airports and will persist through the forecast period. Vicinity showers could cause temporarily lower ceilings and visibilities at some area airports. Some winds shifts greater than 30 degrees will be possible overnight tonight through tomorrow, especially at KNEW. MSW

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

PRELIMINARY POINT TEMPS/POPS. MCB 75 98 76 98 / 10 40 10 40 BTR 75 98 77 97 / 10 40 10 40 ASD 77 99 78 98 / 10 40 10 40 MSY 80 100 82 99 / 10 40 10 50 GPT 77 98 79 97 / 10 40 10 40 PQL 77 99 78 98 / 10 40 10 30

LIX WATCHES/WARNINGS/ADVISORIES. LA . Excessive Heat Warning from 9 AM to 7 PM CDT Friday for LAZ037- 039-049-050-056>061-063>065-070>072-075>078.

Heat Advisory until 7 PM CDT this evening for LAZ034>037-039- 046>050-056>061-063>065-070>072-075>078.

Excessive Heat Watch from Saturday morning through Saturday evening for LAZ037-039-049-050-056>061-063>065-070>072- 075>078.

Heat Advisory from 9 AM to 7 PM CDT Friday for LAZ034>036- 046>048.

Heat Advisory from 9 AM to 7 PM CDT Saturday for LAZ034>036- 046>048.

GM . None. MS . Excessive Heat Warning from 9 AM to 7 PM CDT Friday for MSZ070- 071-077-080>082.

Heat Advisory until 7 PM CDT this evening for MSZ068>071-077- 080>082.

Excessive Heat Watch from Saturday morning through Saturday evening for MSZ070-071-077-080>082.

Heat Advisory from 9 AM to 7 PM CDT Friday for MSZ068-069.

Heat Advisory from 9 AM to 7 PM CDT Saturday for MSZ068-069.

GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 4 mi56 min S 4.1 G 5.1 85°F 91°F1015.4 hPa
CARL1 10 mi56 min 86°F
FREL1 19 mi56 min SW 2.9 G 4.1 85°F 1015.2 hPa
SHBL1 - 8761305 - Shell Beach, LA 25 mi56 min SSW 8 G 8.9 87°F 92°F1016.2 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 27 mi56 min SW 1 G 4.1 85°F 91°F1016.2 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 43 mi56 min W 4.1 G 5.1 87°F 88°F

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA3 mi33 minSSW 410.00 miFair85°F77°F77%1015.6 hPa
New Orleans, New Orleans International Airport, LA12 mi33 minW 410.00 miMostly Cloudy87°F77°F72%1016.5 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA17 mi31 minN 010.00 miMostly Cloudy81°F81°F100%1016 hPa
Slidell, Slidell Airport, LA23 mi33 minN 010.00 miFair79°F74°F85%1016.1 hPa

Link to 5 minute data for KNEW

Wind History from NEW (wind in knots)
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Last 24hrE9SE4SE4SE5SW4SW5SW4W5SW5W8NW3N4SW6N7N8N64N4W4W4SE17
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1 day agoS7S8S6W4SW6W5SW8SW8W4NW6N16N5NE6N6NW5N7N6N6N6S15S3E3NE4E4
2 days agoS6S5S6SW4SW4W4W7W5W6SW5SW4SW3W3N4N5N6N7N7N6N7NE6SE8SE8S7

Tide / Current Tables for New Canal USCG station, Lake Pontchartrain, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Thu -- 04:57 AM CDT     0.50 feet Low Tide
Thu -- 06:17 AM CDT     Sunrise
Thu -- 11:40 AM CDT     Moonset
Thu -- 07:03 PM CDT     0.77 feet High Tide
Thu -- 07:54 PM CDT     Sunset
Thu -- 11:43 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.60.50.50.50.50.50.60.60.60.60.70.70.70.70.70.70.80.80.80.80.70.7

Weather Map
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GEOS Local Image of Southeast    EDIT
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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