Thursday, July2, 2020
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Marine Weather and Tides
Slidell, LA

Version 3.4
NOTICE
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 6:00AMSunset 8:06PM Thursday July 2, 2020 4:20 PM CDT (21:20 UTC) Moonrise 5:51PMMoonset 3:40AM Illumination 92% 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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GMZ534 Lake Borgne- 333 Pm Cdt Thu Jul 2 2020
Tonight..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers in the morning. Chance of Thunderstorms through the day. Showers likely in the afternoon.
Friday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers in the morning. Chance of Thunderstorms through the day. Showers likely in the afternoon.
Saturday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers likely and chance of Thunderstorms.
Sunday..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Showers likely in the morning. Chance of Thunderstorms through the day. Showers in the afternoon.
Sunday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday..West winds 5 to 10 knots. Waves 1 foot or less. Showers likely and chance of 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. Chance of showers and Thunderstorms.
Tuesday..West winds 5 to 10 knots. Waves 1 to 2 feet. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Tuesday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Slight chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 333 Pm Cdt Thu Jul 2 2020
Synopsis..High pressure centered over the western atlantic and eastern gulf will remain in control of the coastal waters overnight. It will then begin to move away on Friday. A weak front will then stall north of the coastal waters and remain in place through early next week.


7 Day Forecast for Marine Location Near Slidell, LA
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location: 30.27, -89.79     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 022057 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 357 PM CDT Thu Jul 2 2020

DISCUSSION. Convection is currently ongoing from a squall line that originated further up in northern Mississippi. These storms have been pretty marginal so far with gusts up to around 30kts recorded in areas affected so far. This line of storms will continue to move south to southwestward into the area. Additionally, a few pop up storms have been bubbling up off on seabreezes south of I-10. Can't completely rule out any severe wind potential due to large CAPE values well into the 2000-3000 J/kg range and decent PW values around 1.5 inch. The steady rain should help cool down the oppressive heat that has been sticking around the last few days. The squall line is currently pretty progressive and does not have the same back building features as the storms did yesterday but areas where storms train over for a while could pick up 1 to 2 inches of rain. Moving into Friday, the trough currently over the eastern coast will dig southward and kick up a weak front. This front currently is looking to stall pretty much right over us around I-12 and the coastal Mississippi line. This front along with impulses moving in from the north will keep us in a persistent wet pattern through around Tuesday. PW values are forecasted around 2 inches throughout the rest of the week into next week. While individual storms should not be dumping too much rain at once, due to the persistence heavy rain may become an issue in the long run for areas that get repeated rounds of storms. -BL

AVIATION. VFR to MVFR conditions will prevail for the forecast period. Convection from the north along with typical seabreeze popup storms may also reduce conditions if they pass directly over terminals. Winds could briefly gust up due to storms or outflow boundaries. Otherwise, VCSH or light showers will be more likely going into tomorrow morning. -BL

MARINE. The winds for the coastal waters will generally be westerly and light. There are a few times where it reaches a little above 10kts this week but not expecting anything to hit any type of criteria. Showers and thunderstorms will be in the forecast for the 5 days or so. -BL


PRELIMINARY POINT TEMPS/POPS. MCB 75 91 74 89 / 40 70 40 70 BTR 76 92 74 90 / 20 70 40 60 ASD 75 92 74 91 / 30 70 40 70 MSY 78 91 76 89 / 30 70 50 70 GPT 76 90 76 88 / 40 70 40 70 PQL 74 93 74 90 / 50 70 50 80

LIX WATCHES/WARNINGS/ADVISORIES. LA . None. GM . None. MS . None. GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 24 mi51 min 89°F 86°F1013.6 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 25 mi51 min 79°F 87°F1015.4 hPa
SHBL1 - 8761305 - Shell Beach, LA 28 mi51 min 88°F 89°F1015.1 hPa
CARL1 30 mi51 min 83°F
FREL1 35 mi51 min 88°F 1013.2 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 47 mi51 min 91°F 89°F1014.4 hPa

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA6 mi28 minNE 24 G 310.50 miThunderstorm Heavy Rain Fog and Windy74°F72°F94%1015.3 hPa
Bay St. Louis, Stennis International Airport, MS19 mi31 minENE 82.00 miThunderstorm Rain Fog/Mist77°F71°F83%1016.6 hPa
New Orleans, New Orleans Lakefront Airport, LA20 mi28 minWNW 910.00 miMostly Cloudy with Haze91°F75°F59%1013.6 hPa

Link to 5 minute data for KASD

Wind History from ASD (wind in knots)
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Last 24hrSW5SE4E5CalmS5N3NE4CalmN7CalmCalmCalmCalmCalmN4N53NW64N86SW5NE7NE24
G31
1 day agoSW4SW5SW4SW4SW5SW4S4SW3S3SW3CalmCalmCalmCalmCalmSW4Calm53Calm3NW5S5S9
2 days agoS5SE5SE5CalmS5S6S5S3CalmSW4CalmCalmCalmCalmCalmCalm44SW64S74S9
G16
4

Tide / Current Tables for Bayou BonFouca, Route 433, 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 Pearlington, Pearl River, Mississippi
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    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 New Orleans/Baton Rouge, LA (17,4,5,8)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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weather_mapweather_map weather_map

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 numerous 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.