|
Marine Weather and Tides
Version 3.4 |
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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
Sunrise 6:41AM | Sunset 5:00PM | Sunday December 8, 2019 7:47 PM CST (01:47 UTC) | Moonrise 3:51PM | Moonset 4:08AM | Illumination 92% | ![]() |
GMZ534 Lake Borgne- 547 Pm Cst Sun Dec 8 2019
Tonight..Variable winds near 5 knots becoming south 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Areas of fog.
Monday..South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday night..South winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers after midnight.
Tuesday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers in the morning, then showers in the afternoon.
Tuesday night..Northeast winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Showers likely.
Wednesday..Northeast winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers through the day. Slight chance of Thunderstorms in the afternoon.
Wednesday night..Northeast winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers.
Thursday..Northeast winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Slight chance of showers.
Thursday night..Northeast winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday..North winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Slight chance of Thunderstorms in the morning. Chance of showers through the day.
Friday night..North winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers.
Tonight..Variable winds near 5 knots becoming south 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Areas of fog.
Monday..South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday night..South winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers after midnight.
Tuesday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers in the morning, then showers in the afternoon.
Tuesday night..Northeast winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Showers likely.
Wednesday..Northeast winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers through the day. Slight chance of Thunderstorms in the afternoon.
Wednesday night..Northeast winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers.
Thursday..Northeast winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Slight chance of showers.
Thursday night..Northeast winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday..North winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Slight chance of Thunderstorms in the morning. Chance of showers through the day.
Friday night..North winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 547 Pm Cst Sun Dec 8 2019
Synopsis..A cold front will move through the coastal waters Tuesday. High pressure will build over the area while a surface low develops over the central and eastern gulf Friday. This low could affect the coastal waters by the end of the week.
Synopsis..A cold front will move through the coastal waters Tuesday. High pressure will build over the area while a surface low develops over the central and eastern gulf Friday. This low could affect the coastal waters by the end of the week.
7 Day Forecast for Marine Location Near Pearlington, MS
Hourly EDIT Helplocation: 30.14, -89.48 debug
Area Discussion for - New Orleans/Baton Rouge, LA
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS64 KLIX 082353 AFDLIX
Area Forecast Discussion National Weather Service New Orleans LA 553 PM CST Sun Dec 8 2019
UPDATE. Forecast grids and products were updated to include a Dense Fog Advisory for Mississippi Sound tonight and early Monday. 11
PREV DISCUSSION. /issued 302 PM CST Sun Dec 8 2019/
SHORT TERM . Area is coming in transition from moderating high pressure influence to onshore marine layer advection this evening. There has been a convergence boundary off the coast of Jackson Co, drifting westward. Radar is indicating a few shallow showers associated with this feature and should continue through sunset. This boundary passage will be the onset of deeper maritime flow that should be more conducive for sea fog formation in the coastal waters and near shore areas tonight. Temperatures are expected to be warm tonight through Tuesday morning despite extensive cloud cover. Deterministic model guidance and MOS temps are cool, but NBM shows several degrees warmer, which is more believable given recent cold biased model trends. Leading edge of arctic air mass moves shallowly into the forecast area Tuesday with over=running rainfall to ensue and continue into Wednesday. The models have come more in line with a progressive open wave impulse moving through the southern branch flow and have backed off the GFS notion of a negative tilt low previously indicated.
LONG TERM . Modifying arctic air remains settled over the area Wednesday and Thursday while a more vigorous upper level low develops in the southern branch and amplifies troughing upon arrival into the forecast area Friday. While the upper level pattern looks similar in the ECMWF and GFS, the surface and low levels are dramatically different. The ECMWF is considerably more south and slower in indicating gulf cyclogenesis Saturday morning. The GFS meanwhile, shows stronger cold pooling in the southern Plains that enhances baroclincity over the area for cyclogenesis in the north gulf Friday - about 18 hours sooner and well north. At this time, will be blending solutions to show some PoPs for Friday, drier Saturday, in deference to ECMWF. Temperatures will remain cool during the period but well above any critical values to consider winter precipitation, generally lows in the 40s, highs in the lower 60s Friday and Saturday.
MARINE . There may be some sea fog considerations over the sounds and tidal lakes as warm air advection brings dewpoints closer to water temperatures tonight and again Monday night. Light to moderate onshore flow through early Tuesday before wind shift with frontal passage throughout the day Tuesday. Air mass is likely to be shallow at first, with stronger cold air advection in lag but going in earnest Tuesday night for Small Craft Advisory criteria winds and seas, continuing through Wednesday. Gulf low pressure development somewhere in the middle to upper gulf later in the week to affect winds, but does appear to maintain strong winds and rough seas Friday into Saturday.
AVIATION . As winds continue to veer to onshore orientation, marine layer will continue to spread inland, lowering and maintaining MVFR to IFR ceilings. Sea fog advection into KGPT, KPQL, KBIX early this evening and possibly lowering at KNEW, KMSY, KASD, KHDC overnight into early Monday morning. Some slow improvement to MVFR levels heading into the afternoon.
DECISION SUPPORT . DSS code: Blue. Deployed: None. Activation: None. Activities: Support to City of New Orleans.
PRELIMINARY POINT TEMPS/POPS. MCB 52 74 57 69 / 0 30 80 90 BTR 54 77 59 69 / 10 20 70 90 ASD 51 76 60 75 / 0 20 40 90 MSY 56 76 64 76 / 10 10 30 80 GPT 53 71 61 72 / 0 10 20 80 PQL 51 75 61 77 / 0 10 20 80
LIX WATCHES/WARNINGS/ADVISORIES. LA . None. GM . Dense Fog Advisory until 6 AM CST Monday for GMZ532.
MS . None. GM .
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS | 15 mi | 60 min | S 5.1 G 8 | 63°F | 61°F | 1016.8 hPa | ||
SHBL1 - 8761305 - Shell Beach, LA | 21 mi | 48 min | SSE 4.1 G 4.1 | 61°F | 65°F | 1017 hPa (+0.0) | ||
NWCL1 - 8761927 - New Canal, LA | 34 mi | 48 min | Calm G 1 | 61°F | 62°F | 1016.5 hPa (+0.4) | ||
CARL1 | 38 mi | 48 min | 51°F | |||||
42067 - USM3M02 | 48 mi | 48 min | NW 3.9 G 5.8 | 65°F | 4 ft | 1016.3 hPa (-0.3) |
Wind History for Bay Waveland Yacht Club, MS
(wind in knots) EDIT (on/off)  Help8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | -12 PM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
Last 24hr | NE | N | N | NW | NW | W | W | NW | W | NW | NW | NW | NW | NW | NW | N | -- | E | E | E | -- | SE | SW G8 | |
1 day ago | NE | N | N G14 | NE | N | N | N G14 | N G11 | N | NE | NE | N | NE G11 | NE | N | N G10 | N | N | N | N | N | N | N | N |
2 days ago | E | NE | NE | -- | NE | -- | SE | -- | -- | E | S | S | SE | SE G9 | S G10 | S | S | S | S | SE | SE |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Bay St. Louis, Stennis International Airport, MS | 16 mi | 1.9 hrs | SE 5 | 10.00 mi | Mostly Cloudy | 63°F | 60°F | 94% | 1016.6 hPa |
Slidell, Slidell Airport, LA | 23 mi | 55 min | N 0 | 10.00 mi | Fair | 59°F | 54°F | 83% | 1017.2 hPa |
Link to 5 minute data for KHSA
Wind History from HSA (wind in knots)
8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
Last 24hr | NE | N | Calm | N | N | NE | Calm | SE | SE | SE | ||||||||||||||
1 day ago | E | NE | NE | NE | N | N | N | N G14 | N | N | N | N | N | N | N | |||||||||
2 days ago | Calm | Calm | Calm | Calm | S | S G14 | SW | SW G14 | SW | W | SE | SE | SE | SE |
Tide / Current Tables for Long Point, Lake Borgne, Louisiana
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataLong Point
Click for Map
Sun -- 03:09 AM CST Moonset
Sun -- 06:42 AM CST Sunrise
Sun -- 08:12 AM CST 0.09 feet Low Tide
Sun -- 02:51 PM CST Moonrise
Sun -- 04:58 PM CST Sunset
Sun -- 10:13 PM CST 0.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 03:09 AM CST Moonset
Sun -- 06:42 AM CST Sunrise
Sun -- 08:12 AM CST 0.09 feet Low Tide
Sun -- 02:51 PM CST Moonrise
Sun -- 04:58 PM CST Sunset
Sun -- 10:13 PM CST 0.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
0.6 | 0.5 | 0.5 | 0.4 | 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 | 0.7 | 0.8 | 0.8 |
Tide / Current Tables for Bay St. Louis, Mississippi
EDIT (on/off)  Help One Week of DataBay St. Louis
Click for Map
Sun -- 03:08 AM CST Moonset
Sun -- 06:41 AM CST Sunrise
Sun -- 07:50 AM CST 0.18 feet Low Tide
Sun -- 02:50 PM CST Moonrise
Sun -- 04:56 PM CST Sunset
Sun -- 09:52 PM CST 1.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 03:08 AM CST Moonset
Sun -- 06:41 AM CST Sunrise
Sun -- 07:50 AM CST 0.18 feet Low Tide
Sun -- 02:50 PM CST Moonrise
Sun -- 04:56 PM CST Sunset
Sun -- 09:52 PM CST 1.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
1.1 | 1 | 0.8 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.1 | 1.2 | 1.2 | 1.3 | 1.3 | 1.3 |
Weather Map
(on/off)  Help Weather Map
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.
Link to Loop

Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (20,4,5,8)
(on/off)  Help


Ground Weather Radar Station New Orleans/Baton Rouge, LA
(on/off)  HelpGulf Stream Current

Ad by Google
Cookie Policy: This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. 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 numerious 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. |