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Marine Weather and Tides
Version 3.4 |
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 6:31AM | Sunset 7:33PM | Saturday August 24, 2019 12:05 AM CDT (05:05 UTC) | Moonrise 12:00AM | Moonset 1:35PM | Illumination 38% |  |
GMZ552 Expires:201908241630;;115146 Fzus54 Klix 240342 Cwflix Coastal Waters Forecast National Weather Service New Orleans La 1042 Pm Cdt Fri Aug 23 2019 Pascagoula To Atchafalaya River Out To 60 Mile Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest Ten Percent Of The Waves. Gmz550-552-241630- 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- 1042 Pm Cdt Fri Aug 23 2019
Rest of tonight..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Saturday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Saturday night..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Sunday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Showers and Thunderstorms.
Sunday night..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Monday..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Showers and Thunderstorms.
Monday night..South winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Tuesday night..Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms after midnight.
Wednesday..Southwest winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Chance of showers and Thunderstorms.
Wednesday night..West winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 6 seconds. Chance of showers and Thunderstorms after midnight.
Rest of tonight..Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Saturday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Saturday night..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Sunday..South winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Showers and Thunderstorms.
Sunday night..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms.
Monday..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Showers and Thunderstorms.
Monday night..South winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..Southwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Tuesday night..Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 5 seconds. Chance of showers and Thunderstorms after midnight.
Wednesday..Southwest winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Chance of showers and Thunderstorms.
Wednesday night..West winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 6 seconds. Chance of showers and Thunderstorms after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1042 Pm Cdt Fri Aug 23 2019
Synopsis..Weak extension of bermuda high pressure area across the northeast gulf of mexico will persist through the weekend. An unsettled pattern will provide periods of Thunderstorms over the coastal waters through Tuesday.
Synopsis..Weak extension of bermuda high pressure area across the northeast gulf of mexico will persist through the weekend. An unsettled pattern will provide periods of Thunderstorms over the coastal waters through Tuesday.
7 Day Forecast for Marine Location Near Grand Isle, LA
Hourly EDIT Helplocation: 29.2, -90.05 debug
Area Discussion for - New Orleans/Baton Rouge, LA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus64 klix 232109 afdlix area forecast discussion national weather service new orleans la 409 pm cdt Fri aug 23 2019 Short term More rain is expected across the region this weekend. A broad low over northwest gulf of mexico will continue to move north bringing deep tropical moisture over the area. That is moving north. This has already brought a surge of deep tropical moisture into southeast louisiana and south mississippi with precipitable water (pw) values running in the 2 to 2.3 inch range. This moisture will remain in place through the weekend and into Monday. The weather prediction center maintains a marginal risk of excessive rainfall along the coast this evening. For Saturday, a small portion of the coast will be in a slight risk of excessive rainfall and other areas in a marginal risk. Heavy rainfall will be possible with any convection over the next few days. The potential for banded storms and training storms over areas that have saturated soils pose a greater risk for flash flooding. A shortwave will be moving southeast from the central and southern plains into the lower mississippi valley Sunday and this should help pull this disturbance over the immediate forecast area. This will maintain deep tropical moisture and a favorable environment for fairly widespread rainfall and a threat of locally heavy rainfall. The entire forecast area is in a marginal risk of excessive rainfall on Sunday and Sunday night. We will have to watch to see if the risk areas are updated or expanded for Sunday, and also will have to watch to see if they could be extended into Monday especially across the eastern portions of the area. Long term A wet pattern continues into next week. Afternoon convection will continue each day. A frontal boundary will start to approach the region from the north. This should serve to trigger more convection during this time period. Guidance suggests that the boundary will get through the area. We will have to monitor the forecast for changes. Just expect temperatures to not be as hot with increased rain chances. Aviation Expect showers to diminish over the next few hours across the area. Expect mostly MVFR toVFR conditions to prevail overnight into Saturday. Afternoon convection will once again play a role in the forecast as more widespread coverage for Saturday is expected. Marine No significant changes to the forecast this afternoon which is basically light onshore winds and low seas outside of convection. |
The air mass will become increasingly more conducive for tropical funnel and waterspout formation in the near shore waters, near shore marshes and tidal lakes bays through the weekend. Expect nocturnal convection each night over the waters through next week. Decision support Dss code: yellow. Deployed: none. Activation: none. Activities: marginal risk excessive rainfall Sunday. Marginal to slight risk Saturday. Decision support services (dss) code legend green = no weather impacts that require action. Blue = long-fused watch, warning, or advisory in effect or high visibility event; marginal risk severe or excessive rain. Yellow = heightened impacts with short-fused watch, warning or advisory issuances; radar support for slight risk severe or excessive rain. Orange = high impacts; enhanced risk severe; nearby tropical events; hazmat or other large episodes. Red = full engagement for moderate to high risk of severe and or excessive rainfall, or direct tropical threats; events of national significance. Preliminary point temps pops Mcb 72 88 72 88 20 70 40 80 btr 74 88 74 88 20 70 40 80 asd 73 90 73 89 20 70 40 80 msy 77 89 77 89 20 70 40 80 gpt 74 89 74 88 20 70 40 80 pql 73 92 74 91 20 70 40 80 Lix watches warnings advisories La... None. Gm... None. Ms... None. Gm... None. |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| GISL1 - 8761724 - Grand Isle, LA | 7 mi | 47 min | SE 2.9 G 6 | 86°F | ||||
| KXPY | 10 mi | 30 min | SE 6 | 84°F | 79°F | |||
| LOPL1 - Louisiana Offshore Oil Port, LA | 22 mi | 33 min | SSE 11 G 13 | 83°F | 2 ft | 1015.1 hPa | 74°F | |
| SPLL1 - South Timbalier Block 52, LA / CSI06 | 32 mi | 125 min | ESE 12 G 13 | 85°F | ||||
| BURL1 - Southwest Pass, LA | 39 mi | 65 min | ENE 7 G 8 | |||||
| PSTL1 - 8760922 - Pilot's East, SW Pass, LA | 39 mi | 47 min | SE 7 G 9.9 | |||||
| KMDJ | 41 mi | 30 min | SE 11 | 84°F | 77°F | |||
| PILL1 | 42 mi | 53 min | ESE 1.9 G 4.1 | 81°F | 87°F | 1015.2 hPa | ||
| BYGL1 - 8762482 - Bayou Gauche, LA | 45 mi | 53 min | SE 2.9 G 4.1 | 80°F | 86°F | 1014.7 hPa |
Wind History for Grand Isle, LA
(wind in knots) EDIT (on/off) Help| 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 | -12 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | |
| Last 24hr | S G7 | S | S | S G16 | S G9 | SW | S | SW | S | W G15 | W G10 | NW | NE | SE | SE G6 | SE | SE G7 | SE | SE | S | SE | SE G5 | SE | |
| 1 day ago | SE G9 | SE G10 | SE G8 | SE G7 | S | S | SE | SE | SE | SE G7 | SE | SE | E G8 | E G9 | SE | SE G7 | S | E | SE G10 | SE G8 | SE G7 | S G13 | S G13 | S G12 |
| 2 days ago | S | S | S | S | SE | SE | SE G7 | SE G8 | SE G8 | SE G6 | E | SE | SE | SE | SE | SE G6 | SE | SE | SE G8 |
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 |
| Port Fourchon, LA | 10 mi | 3.2 hrs | ESE 5 | 10.00 mi | Fair | 84°F | 78°F | 84% | 1015.2 hPa |
| Galliano, South Lafourche Airport, LA | 20 mi | 3.2 hrs | N 0 | 10.00 mi | Fair | 79°F | 77°F | 94% | 1015.2 hPa |
Link to 5 minute data for KXPY
Wind History from XPY (wind in knots)
| 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 | 12 AM | |
| Last 24hr | S | S | S | S | SW | SW | S | SW G24 | W | W | Calm | Calm | SE | E | W | SE | SE | SE | SE | |||||
| 1 day ago | S | SE | E | SE | S | SE | SE | SW | Calm | SE | SE G13 | SE | S | S | S | S | ||||||||
| 2 days ago | S | Calm | S | S | S | S | S | S | SE G11 | SE | E | SE | SE | SE | SE | SE |
Tide / Current Tables for Caminada Pass (bridge), Mississippi River Delta, Louisiana
EDIT Weekend mode (on/off) (on/off) Help One Week of DataCaminada Pass (bridge)
Click for Map
Sat -- 12:36 AM CDT Moonrise
Sat -- 06:26 AM CDT 1.06 feet High Tide
Sat -- 06:33 AM CDT Sunrise
Sat -- 02:34 PM CDT Moonset
Sat -- 05:54 PM CDT 0.16 feet Low Tide
Sat -- 07:31 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:36 AM CDT Moonrise
Sat -- 06:26 AM CDT 1.06 feet High Tide
Sat -- 06:33 AM CDT Sunrise
Sat -- 02:34 PM CDT Moonset
Sat -- 05:54 PM CDT 0.16 feet Low Tide
Sat -- 07:31 PM CDT Sunset
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 |
| 0.7 | 0.8 | 0.8 | 0.9 | 1 | 1 | 1.1 | 1.1 | 1 | 1 | 0.9 | 0.8 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | 0.5 |
Tide / Current Tables for Bayou Rigaud, Grand Isle, Mississippi River Delta, Louisiana
EDIT (on/off) Help One Week of DataBayou Rigaud
Click for Map
Sat -- 12:35 AM CDT Moonrise
Sat -- 05:21 AM CDT 1.34 feet High Tide
Sat -- 06:33 AM CDT Sunrise
Sat -- 02:34 PM CDT Moonset
Sat -- 04:35 PM CDT 0.24 feet Low Tide
Sat -- 07:30 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:35 AM CDT Moonrise
Sat -- 05:21 AM CDT 1.34 feet High Tide
Sat -- 06:33 AM CDT Sunrise
Sat -- 02:34 PM CDT Moonset
Sat -- 04:35 PM CDT 0.24 feet Low Tide
Sat -- 07:30 PM CDT Sunset
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 | 1.2 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.1 | 0.9 | 0.8 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.5 | 0.7 | 0.8 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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 (1,6,7,8)
(on/off) Help
Ground Weather Radar Station New Orleans/Baton Rouge, LA
(on/off) Help
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 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. |