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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 6:19AM | Sunset 7:34PM | Wednesday April 25, 2018 1:07 PM CDT (18:07 UTC) | Moonrise 3:28PM | Moonset 3:50AM | Illumination 79% |  |
Marine Forecasts
EDIT (on/off) Help| GMZ534 Lake Borgne- 1042 Am Cdt Wed Apr 25 2018 Rest of today..Northwest winds near 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Tonight..West winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers after midnight. Thursday..West winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms in the morning. Thursday night..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Friday..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms in the afternoon. Friday night..North winds 10 to 15 knots. Waves 1 to 3 feet. Dominant period 4 seconds. Saturday..North winds 10 to 15 knots becoming west 5 to 10 knots late in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Saturday night..Southwest winds 5 to 10 knots becoming east after midnight. Waves 1 foot or less. Dominant period 4 seconds. Sunday..East winds near 10 knots. Waves 1 to 2 feet. Sunday night..East winds near 10 knots. Waves 1 foot or less. | GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1042 Am Cdt Wed Apr 25 2018 Synopsis..A series of weak cold fronts will sweep across the coastal waters through Friday. High pressure will then settle over the coastal waters for the upcoming weekend. |
7 Day Forecast for Marine Location Near Slidell, LA
Hourly EDIT Helplocation: 30.27, -89.79 debug
Area Discussion for - New Orleans/Baton Rouge, LA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus64 klix 250845 afdlix area forecast discussion national weather service new orleans la 345 am cdt Wed apr 25 2018 first short wave on the way this morning as it moves through nebraska. The attendant cold front will move through with some showers Thursday morning while there is the possibility of some thunderstorms over the northern most portion of the area as well. Severe thunderstorm activity, if any, should stay north and east of our area. The second short wave will be quick on the heels of this one and should move through Friday. It is currently located over northern canada. This will also help keep the area in a rather cool and mostly dry forecast. This short wave will also be coupled with some rather cold 500mb temps. There is very little moisture associated with it, but the strong dynamic lift will cause layer lifting which in turn causes instability of these layers and high enough rh levels to produce rainfall. Sounding profiles are supportive of hail with any thunderstorm activity that is capable of getting started. So of the two systems, the one having the best opportunity of having strong or a severe thunderstorm with it will be the Friday system. While this system is moving through, stability will increase along with more dry air intrusion. This will cause thunderstorms to decay as they move through the area Friday. Warm air and moisture will begin to return to the area by the start of the new week. This could lead to some convergent showers moving in from the gulf by Tuesday and Wednesday. There is some indication of a large slow moving cold front possibly affecting the area by the end of next week. Aviation Vfr conditions will prevail at the majority of the terminals through 06z. However, at kmcb some light fog could develop around 12z and push visibilities into MVFR range for an hour or two. After 06z, an approaching front will bring lower ceilings to most of the terminals. Expect to see prevailing ifr and MVFR ceilings in place by 12z tomorrow. Some scattered showers and isolated thunderstorms should also accompany the frontal passage by 12z tomorrow, but any visibility restrictions will be short-lived as the convection passes through quickly. 32 Marine A passing frontal boundary late tonight and tomorrow should result in west-northwest winds of 15 to 20 knots and higher seas developing late tonight into tomorrow morning over the open gulf waters and sounds. Gradient flow should relax back to around 10 knots by |
Thursday night. However, another front will pass through the coastal waters on Friday. Another surge of stronger northerly winds of 15 to 20 knots and higher seas will once again develop over the open gulf waters and sounds for late Friday and Friday night. High pressure should settle directly over the waters for the weekend, and winds should turn more variable and drop to 10 knots or less. Seas should also fall back to 3 feet or less for the weekend. 32 Decision support Dss code: blue. Deployed: none. Activation: none. Activities: sandhill crane nwr outreach support new orleans navy week support 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; direct tropical threats; events of national significance. Preliminary point temps pops Mcb 77 58 71 53 10 60 20 10 btr 81 59 73 54 10 50 20 10 asd 79 62 74 56 0 30 40 10 msy 80 64 74 59 0 30 40 10 gpt 79 64 75 57 0 20 50 10 pql 78 63 75 56 0 20 50 10 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 |
| NWCL1 - 8761927 - New Canal, LA | 24 mi | 49 min | NNW 2.9 G 5.1 | 70°F | 72°F | 1017.2 hPa | ||
| WYCM6 - 8747437 - Bay Waveland Yacht Club, MS | 25 mi | 49 min | NNW 7 G 8 | 72°F | 70°F | 1016.6 hPa | ||
| SHBL1 - 8761305 - Shell Beach, LA | 28 mi | 49 min | NNE 1.9 G 2.9 | 68°F | 74°F | 1017.1 hPa | ||
| CARL1 | 30 mi | 49 min | 59°F | |||||
| FREL1 | 35 mi | 49 min | NNE 1.9 G 4.1 | 75°F | 1016.5 hPa | |||
| BYGL1 - 8762482 - Bayou Gauche, LA | 47 mi | 151 min | Calm G 4.1 | 76°F | 73°F | 1017.8 hPa |
Wind History for New Canal Station, LA
(wind in knots) EDIT (on/off) Help| 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 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 | |
| Last 24hr | NW | W G6 | W G9 | W G10 | W G8 | NW G6 | NW G6 | NW G9 | N | N | N | N | N | N | N | N | N G5 | NW | N | N | N | NE | N | NW G5 |
| 1 day ago | NW G10 | NW G10 | NW G10 | NW G8 | N G13 | N G11 | N | N G15 | N | NE | NE | S | SW | SW | SW | SW | NW | W G10 | W G9 | W G9 | W G10 | W | W G10 | NW G7 |
| 2 days ago | SW G19 | W G16 | W G14 | NW G14 | NW G7 | NW | W G6 | NW G8 | NW G13 | NW G15 | W G13 | NW G12 | NW G11 | NW G12 | NW G8 | NW G9 | NW G10 | W G9 | W G9 | W G8 | W G10 | W G8 | NW G10 | W G11 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Slidell, Slidell Airport, LA | 6 mi | 74 min | N 8 | 10.00 mi | Fair | 77°F | 55°F | 47% | 1016.8 hPa |
| Bay St. Louis, Stennis International Airport, MS | 19 mi | 77 min | N 9 | 7.00 mi | Clear | 75°F | 55°F | 50% | 1016.9 hPa |
| New Orleans, New Orleans Lakefront Airport, LA | 20 mi | 74 min | WNW 6 | 10.00 mi | Fair | 72°F | 57°F | 59% | 1016.9 hPa |
Wind History from ASD (wind in knots)
| 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 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 | |
| Last 24hr | NW | G14 | N | N | NW | N | N | Calm | Calm | Calm | Calm | Calm | Calm | Calm | N | Calm | Calm | Calm | Calm | N | N | N | N | N |
| 1 day ago | SW | NW | NW | N | N | N | N | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | N | NW | NW | ||||
| 2 days ago | SW G23 | SW G21 | W G15 | Calm | Calm | Calm | NW | NW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | W | NW | SW | W | W G15 |
Tide / Current Tables for Bayou BonFouca, Route 433, Louisiana
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Bayou BonFouca Click for Map Wed -- 03:21 AM CDT 0.49 feet High Tide Wed -- 03:49 AM CDT Moonset Wed -- 06:21 AM CDT Sunrise Wed -- 02:40 PM CDT 0.09 feet Low Tide Wed -- 03:27 PM CDT Moonrise Wed -- 07:33 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.3 | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 |
Tide / Current Tables for Pearlington, Pearl River, Mississippi
EDIT (on/off) Help One Week of Data| Pearlington Click for Map Wed -- 03:48 AM CDT Moonset Wed -- 06:20 AM CDT Sunrise Wed -- 08:40 AM CDT 0.20 feet Low Tide Wed -- 03:26 PM CDT Moonrise Wed -- 07:32 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 1.1 | 1 | 0.9 | 0.8 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 |
Weather Map and Satellite Images
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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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (14,3,4,5)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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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. |