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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 6:48AM | Sunset 7:52PM | Friday April 20, 2018 10:38 PM CDT (03:38 UTC) | Moonrise 9:43AM | Moonset 11:50PM | Illumination 32% | ![]() |
Marine Forecasts
EDIT (on/off)  HelpGMZ355 Coastal Waters From Freeport To The Matagorda Ship Channel Out 20 Nm-coastal Waters From High Island To Freeport Out 20 Nm- 1025 Pm Cdt Fri Apr 20 2018 .small craft should exercise caution... Rest of tonight..Southeast winds 15 to 20 knots. Seas 3 to 4 feet. A slight chance of showers after midnight. Saturday..Southeast winds 15 to 20 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms. Saturday night..Southeast winds around 15 knots becoming southwest after midnight. Seas 3 to 4 feet. A chance of showers and Thunderstorms in the evening, then showers and Thunderstorms likely after midnight. Sunday..Northwest winds 10 to 15 knots. Seas 2 to 4 feet. A slight chance of showers and Thunderstorms in the morning. Sunday night..North winds 10 to 15 knots. Seas 2 to 3 feet. Monday..North winds 10 to 15 knots becoming northwest 5 to 10 knots in the afternoon. Seas 1 to 2 feet. Monday night..Northwest winds 5 to 10 knots becoming north after midnight. Seas 1 to 2 feet. Tuesday..Northeast winds 5 to 10 knots. Seas 1 foot. Tuesday night..Southeast winds 5 to 10 knots becoming east after midnight. Seas 1 foot. Wednesday..East winds 5 to 10 knots. Seas 1 foot. Wednesday night..Northeast winds 5 to 10 knots. Seas 1 to 2 feet. | GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1025 Pm Cdt Fri Apr 20 2018 Synopsis for high island to matagorda ship channel out 60 nm.. A moderate to strong southeast winds will prevail tonight through much of Saturday afternoon. A cold front should push off the coast sometime Saturday night or early Sunday morning with showers and storms likely. Generally moderate offshore winds developing in the wake of this front are forecast to persist through Monday. |
7 Day Forecast for Marine Location Near Oyster Creek, TX
Hourly EDIT Helplocation: 29.08, -95.17 debug
Area Discussion for - Houston/Galveston, TX
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFxus64 khgx 210303 afdhgx area forecast discussion national weather service houston galveston tx 1003 pm cdt Fri apr 20 2018 Discussion Lowered temperatures a few degrees for the update. Think they'll eventually level off, but t TD spread is far enough apart to allow for them to fall a bit. Otherwise, current forecast is in pretty good shape. Other than some iso shra and possibly -dz in the morning, capping should keep TSTM chances in check until later in the day Saturday and Saturday night. 47 Prev discussion issued 724 pm cdt Fri apr 20 2018 aviation... deepening moisture from the gulf along with disturbances from the west is helping to produce areas of patchy light rain drizzle and perhaps slightly lower CIGS from the west. This current band will be moving off to the east later this evening, with the next batch timed for the overnight early morning hours (based on satellite). Mostly MVFR CIGS are expected areawide overnight but given the in- creased low-level winds at and just above the surface, not expecting any fog lower vis or extended periods of lower cigs. |
Isolated WAA shra possible along the coast but activity should increase by the afternoon with daytime heating and the approach of the front. Will likely keep the mention of precipitation in the tafs through Saturday evening... With things tapering off behind the front from W to E overnight Saturday into Sunday. 41 Preliminary point temps pops College station (cll) 54 74 55 72 52 20 60 50 10 0 houston (iah) 58 76 62 75 54 20 50 60 10 0 galveston (gls) 63 75 66 74 61 20 30 60 20 0 Hgx watches warnings advisories Tx... None. Gm... Small craft should exercise caution until 7 am cdt Saturday for the following zones: coastal waters from freeport to the matagorda ship channel out 20 nm... Coastal waters from high island to freeport out 20 nm... Waters from freeport to the matagorda ship channel from 20 to 60 nm... Waters from high island to freeport from 20 to 60 nm. Small craft should exercise caution until 10 pm cdt this evening for the following zones: matagorda bay. |
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 |
LUIT2 | 3 mi | 51 min | E 15 G 19 | 67°F | 1018.8 hPa | |||
FCGT2 - 8772447 - USCG Freeport, TX | 12 mi | 51 min | ENE 11 G 16 | 67°F | 71°F | 1019.1 hPa | ||
GRRT2 | 21 mi | 51 min | E 14 G 16 | 66°F | 69°F | 1019 hPa | ||
GTOT2 | 26 mi | 51 min | ESE 8 G 13 | 66°F | 73°F | 1019.4 hPa | ||
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 30 mi | 57 min | E 17 G 20 | 69°F | 1019.3 hPa | |||
EPTT2 - 8771013 - Eagle Point, TX | 31 mi | 57 min | ESE 16 G 20 | 65°F | 67°F | 1019.2 hPa | ||
SGNT2 | 32 mi | 51 min | E 11 G 19 | 68°F | 71°F | 1018 hPa | ||
KXIH | 35 mi | 44 min | ESE 21 | 66°F | 59°F | |||
42035 - GALVESTON 22NM East of Galveston, TX | 41 mi | 109 min | E 18 G 19 | 66°F | 70°F | 3 ft | 1019.5 hPa (-0.6) | 59°F |
MGPT2 - 8770613 - Morgans Point, TX | 43 mi | 51 min | E 11 G 16 | 64°F | 69°F | 1019.3 hPa | ||
NCHT2 - 8770777 - Manchester, TX | 45 mi | 51 min | ENE 7 G 9.9 | 64°F | 71°F | 1018.5 hPa | ||
RLOT2 - 8770971 - Rollover Pass, TX | 46 mi | 51 min | ESE 17 G 19 | 67°F | 66°F | 1019.9 hPa | ||
EMAT2 | 47 mi | 57 min | E 15 G 18 | 67°F | 71°F | 1017.5 hPa |
Wind History for USCG Freeport, TX
(wind in knots) EDIT (on/off)  Help11 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 | 8 PM | 9 PM | 10 PM | |
Last 24hr | NE | NE G11 | NE G11 | NE G11 | NE G11 | NE G14 | NE G17 | NE G15 | NE G20 | NE G17 | NE G20 | NE G18 | NE G15 | NE | NE G16 | NE G13 | E G14 | E G12 | NE G14 | E | E G12 | E G12 | E G17 | E G15 |
1 day ago | S | S | SW | SW | SW | W G8 | N G14 | N G18 | N G16 | N G18 | N G23 | N G25 | N G23 | N G23 | NE G17 | NE G17 | NE G14 | NE G13 | E G12 | E G10 | E G9 | E | NE | N |
2 days ago | SE | SE G23 | S G22 | S G21 | S G21 | S G24 | S G19 | S G14 | S G14 | S | S G12 | S G14 | S G12 | S | S G13 | S | S G16 | SE | SE | S | S | S | S | S |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airportsAirport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Angleton / Lake Jackson, Brazoria County Airport, TX | 16 mi | 46 min | E 5 | 10.00 mi | Fair | 65°F | 57°F | 76% | 1019.1 hPa |
Galveston, Scholes Field, TX | 21 mi | 47 min | E 13 | 10.00 mi | Mostly Cloudy | 66°F | 59°F | 78% | 1019.4 hPa |
Wind History from LBX (wind in knots)
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 | 8 PM | 9 PM | 10 PM | |
Last 24hr | NE | NE | NE | NE | NE | NE | NE | N | NE | NE | NE | E | NE | E | E | E | E G17 | E | SE G19 | E | E | E | E | E |
1 day ago | Calm | Calm | Calm | Calm | Calm | N | N | NE | NE | NE G18 | NE G18 | N G24 | NE G22 | N G20 | N G18 | N | NE | NE | N | Calm | SE | Calm | Calm | |
2 days ago | S G21 | S G20 | S G22 | S G19 | S | S | S G17 | S | S | S | S | S | SW | SW | S | S | S | S | S | S | S | S | S |
Tide / Current Tables for Christmas Point, Christmas Bay, Texas
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of DataChristmas Point Click for Map Fri -- 04:05 AM CDT -0.10 feet Low Tide Fri -- 06:49 AM CDT Sunrise Fri -- 10:42 AM CDT Moonrise Fri -- 12:47 PM CDT 1.03 feet High Tide Fri -- 07:50 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 |
0.5 | 0.3 | 0.1 | -0 | -0.1 | -0.1 | 0 | 0.2 | 0.4 | 0.6 | 0.8 | 0.9 | 1 | 1 | 1 | 1 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 | 0.7 |
Tide / Current Tables for Alligator Point, West Bay, Texas
EDIT (on/off)  Help One Week of DataAlligator Point Click for Map Fri -- 04:03 AM CDT -0.08 feet Low Tide Fri -- 06:49 AM CDT Sunrise Fri -- 10:42 AM CDT Moonrise Fri -- 12:48 PM CDT 1.07 feet High Tide Fri -- 07:49 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 |
0.5 | 0.3 | 0.1 | -0 | -0.1 | -0 | 0.1 | 0.2 | 0.4 | 0.6 | 0.8 | 1 | 1 | 1.1 | 1 | 1 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 |
Weather Map and Satellite Images
(on/off)  HelpWeather Map
GOES Local Image of SouthCentralPlains 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.
target = "new">Link to Loop

Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Houston/Galveston, TX (23,6,7,8)
(on/off)  Help![]() | ![]() | ![]() |
Ground Weather Radar Station Houston/Galveston, TX
(on/off)  HelpGulf 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. |