Tuesday, January28, 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 6:50AMSunset 5:33PM Tuesday January 28, 2020 9:51 AM CST (15:51 UTC) Moonrise 10:21AMMoonset 10:04PM Illumination 13% Phase: Waxing Crescent; Moon at 4 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- 912 Am Cst Tue Jan 28 2020
Rest of today..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Tonight..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers late in the evening. Showers and isolated Thunderstorms after midnight.
Wednesday..South winds 10 to 15 knots becoming west in the late morning and early afternoon, then becoming northwest late in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Showers likely and isolated Thunderstorms in the morning, then slight chance of showers in the afternoon.
Wednesday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers.
Friday..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Showers.
Friday night..North winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers in the evening.
Saturday..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 912 Am Cst Tue Jan 28 2020
Synopsis..High pressure will move east today. A cold front moves through Wednesday. High pressure will move through quickly allowing the next cold front to move through by the end of the 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 280929 AFDLIX

AREA FORECAST DISCUSSION National Weather Service New Orleans LA 329 AM CST Tue Jan 28 2020

DISCUSSION. Zonal upper level flow is in place over the region with surface high pressure building in from the north. The eastward progression of the the ridge will allow for onshore flow to develop. This setup will bring warmer temperatures and increasing moisture to the local area today. Expect highs in the 60s.

A shortwave dropping out of the Rockies into the Central Plains today will be bringing the next chance of rain. Showers should be nudging in on the western fringe of the CWA this evening. POPS will peak after midnight, with nearly 100% coverage, which may include isolated thunderstorms. QPF totals are not expected to be very high, generally around 1/4". The back side of the main rain shield should be east of I-55 by daybreak Wednesday and the entire CWA before the sun sets. Weak cold air advection on the backside of the shortwave will bring down temps a few degrees on Thursday. Some locations probably won't reach 60 degrees.

The progressive pattern of rain every 2 to 3 days looks like it will persist through the rest of the week. Models show a trough more amplified than any others this week, to move across the Mississippi Valley Friday night. Southward digging of the base of the trough will reach into the western Gulf of Mexico off the TX coast Friday. This will bring a wide swath of showers across at least the southern half of the forecast area. Once it moves east of the CWA Friday night, finally should see at least a few consecutive dry days before the next system moves in.

MEFFER

AVIATION. IFR vis and ceilings will remain in and out at each terminal until after sunrise. Then VFR ceilings will begin to become prevailing around BKN200. Ceilings expected to fall overnight but should remain more stable at OVC030 with some tempo decks at BKN003. Some -RA should start after midnight with the most widespread -SHRA moving in around or must after daylight Wed morning. The SHRA will move east with fropa Wed but the cigs will remain locked at the same levels.

MARINE. East winds today of 15kt will shift to west around 20kt after a cold front moves through during the day Wed. Winds will then become northerly and ease to 10-15kt Wed night into Thursday. Another cold front will begin to affect the area by the end of the week with east winds Thursday night around 15kt becoming southerly Friday and shifting to north around 20kt late Friday through Saturday. Winds will ease Saturday night and become more NW into the new week with high pressure settling into the north central gulf.

PRELIMINARY POINT TEMPS/POPS. MCB 64 49 62 42 / 0 90 70 10 BTR 66 51 63 44 / 0 90 30 0 ASD 65 50 65 43 / 0 90 60 10 MSY 66 55 65 47 / 0 90 40 10 GPT 63 50 63 44 / 0 70 80 10 PQL 66 49 65 42 / 0 60 90 10

LIX WATCHES/WARNINGS/ADVISORIES. LA . Dense Fog Advisory until 9 AM CST this morning for LAZ034>037- 039-040-046>050-071-072.

GM . None. MS . Dense Fog Advisory until 9 AM CST this morning for MSZ068>071- 077-080>082.

GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 24 mi52 min E 8.9 G 12 54°F 55°F1016.6 hPa (+0.9)
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 25 mi58 min ENE 4.1 G 5.1 50°F 54°F1018.3 hPa
SHBL1 - 8761305 - Shell Beach, LA 28 mi52 min NE 13 G 14 54°F 56°F1017.5 hPa (+0.6)
CARL1 30 mi52 min 48°F
FREL1 35 mi52 min E 8 G 8.9 54°F 1016.5 hPa (+1.4)
BYGL1 - 8762482 - Bayou Gauche, LA 47 mi52 min ENE 2.9 G 6 54°F 54°F1017.6 hPa (+1.3)

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Slidell, Slidell Airport, LA6 mi59 minNE 410.00 miFair51°F48°F89%1017.7 hPa
Bay St. Louis, Stennis International Airport, MS19 mi62 minE 67.00 miFair48°F48°F100%1017.9 hPa
New Orleans, New Orleans Lakefront Airport, LA20 mi59 minE 1010.00 miFair54°F50°F87%1016.8 hPa

Link to 5 minute data for KASD

Wind History from ASD (wind in knots)
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Last 24hrN7N6N11N7NE8N7N6N5N3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmNE4
1 day agoCalmE3E5SE7SE7SE9SE7SE6SE4CalmE3N3N4N7N5N7N4N4CalmN4N7N3N4N11
2 days agoN56N64Calm5N5SW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3Calm

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 (10,2,3,4)
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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.