|
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 7:06AM | Sunset 5:24PM | Monday December 16, 2019 1:54 AM CST (07:54 UTC) | Moonrise 10:07PM | Moonset 11:01AM | Illumination 79% | ![]() |
GMZ335 Galveston Bay- 935 Pm Cst Sun Dec 15 2019
.small craft advisory in effect from Monday evening through Tuesday morning...
Rest of tonight..South winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers. Patchy fog after midnight.
Monday..South winds 10 to 15 knots becoming northwest 20 to 25 knots in the afternoon. Bay waters slightly choppy becoming rough in the afternoon. Patchy fog until late afternoon. A chance of showers and a slight chance of Thunderstorms early in the morning. Showers and a chance of Thunderstorms in the late morning and early afternoon, then a chance of showers and a slight chance of Thunderstorms late in the afternoon.
Monday night..North winds 20 to 30 knots. Bay waters rough. A slight chance of showers in the evening.
Tuesday..North winds 15 to 20 knots. Bay waters choppy.
Tuesday night..North winds 15 to 20 knots. Bay waters choppy.
Wednesday..North winds 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. Bay waters slightly choppy becoming smooth in the afternoon.
Wednesday night..East winds 5 to 10 knots. Bay waters smooth.
Thursday..Southeast winds 5 to 10 knots. Bay waters smooth.
Thursday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers in the late evening and early morning. A chance of showers late.
Friday..Southwest winds 5 to 10 knots becoming northwest in the afternoon. Bay waters smooth. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.
Friday night..North winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers.
.small craft advisory in effect from Monday evening through Tuesday morning...
Rest of tonight..South winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers. Patchy fog after midnight.
Monday..South winds 10 to 15 knots becoming northwest 20 to 25 knots in the afternoon. Bay waters slightly choppy becoming rough in the afternoon. Patchy fog until late afternoon. A chance of showers and a slight chance of Thunderstorms early in the morning. Showers and a chance of Thunderstorms in the late morning and early afternoon, then a chance of showers and a slight chance of Thunderstorms late in the afternoon.
Monday night..North winds 20 to 30 knots. Bay waters rough. A slight chance of showers in the evening.
Tuesday..North winds 15 to 20 knots. Bay waters choppy.
Tuesday night..North winds 15 to 20 knots. Bay waters choppy.
Wednesday..North winds 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. Bay waters slightly choppy becoming smooth in the afternoon.
Wednesday night..East winds 5 to 10 knots. Bay waters smooth.
Thursday..Southeast winds 5 to 10 knots. Bay waters smooth.
Thursday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers in the late evening and early morning. A chance of showers late.
Friday..Southwest winds 5 to 10 knots becoming northwest in the afternoon. Bay waters smooth. A chance of showers until late afternoon, then a slight chance of showers late in the afternoon.
Friday night..North winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 935 Pm Cst Sun Dec 15 2019
Synopsis for high island to matagorda ship channel out 60 nm.. A strong onshore flow will persist tonight with winds gradually decreasing and veering to the southwest on Monday. A strong cold front will cross the coastal waters late Monday afternoon. Post frontal winds will significantly strengthen and frequently gust to gale force Monday night into early Tuesday. An onshore flow will return by late Thursday.
Synopsis for high island to matagorda ship channel out 60 nm.. A strong onshore flow will persist tonight with winds gradually decreasing and veering to the southwest on Monday. A strong cold front will cross the coastal waters late Monday afternoon. Post frontal winds will significantly strengthen and frequently gust to gale force Monday night into early Tuesday. An onshore flow will return by late Thursday.
7 Day Forecast for Marine Location Near Anahuac, TX
Hourly EDIT Helplocation: 29.73, -94.7 debug
Area Discussion for - Houston/Galveston, TX
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS64 KHGX 160534 AFDHGX
Area Forecast Discussion National Weather Service Houston/Galveston TX 1134 PM CST Sun Dec 15 2019
AVIATION. A complicated and messy 24 hour TAF period on tap for the area. Low level moisture will continue to stream into the region beneath a stout cap. MVFR ceilings are currently spotty across the region and this trend will likely continue overnight. The moist layer deepens between 06z-09z and some streamer showers will be possible between 09-12z with a mix of MVFR/VFR ceilings. Northern TAF sites could fall to IFR at times but at this time, feel the better chance for IFR ceilings will come behind a cold front that will cross the area Monday morning. Instability and jet dynamics not looking great but after coordination with the ZHU CWSU, have added a VCTS for KIAH and points southward. Skies will begin to clear from north to south by mid/late afternoon. Winds will turn to the W in the morning and NW by afternoon. Winds in the wake of the front will become gusty.
Lastly, conditions along the coast will favor some sea fog and how that affects KGLS is uncertain. Will maintain MVFR conditions for possible lower ceilings and restrictions to visibility. Once winds become SW-W, the threat for fog will end and this is fcst to occur between 12-15z Monday. 43
PREV DISCUSSION. /ISSUED 943 PM CST Sun Dec 15 2019/
UPDATE (Through Monday Night) .
Southerly wind flow today continued to bring in warm and moist air across the region. Temperatures this afternoon reached the low 80s areawide, setting three high temperature records for the day. A record high temperature of 84 degrees was set at Houston Intercontinental Airport, breaking the old record of 82 degrees set in 1995. A record high temperature of 83 degrees was set at Hobby Airport today, breaking the old record of 81 also set in 1995. Another record high temperature of 77 degrees was set at Galveston, which ties the old record of 77 degrees set in 2012. College station was a degree short of reaching the record high of 84 degrees. But all this lovely warm air will sadly come to an end soon.
An upper level trough will move across the Rockies and into the Central Plains tonight through Tuesday. A surface low pressure will move southeastward from New Mexico into western Texas overnight, as another surface low pressure meanders over the AR/LA border. A cold front between the two lows will move across the region, passing through the College Station region at around 9 AM CST, the Houston region around noon CST, and the Galveston region around 3 PM CST.
This time around, the environment looks to be more favorable for shower and thunderstorm activity ahead and along the frontal passage. Hi-Res Precip models show activity starting around midnight CST, increasing overnight as the front moves closer to the region, and peaking along the frontal boundary. Strongest activity looks to develop across the eastern central and southeastern regions of the CWA, which coincides with the areas of higher CAPE and moisture content. Light rain could linger for a few hours behind the front, but drier and colder air mass will encompass the region Monday night suppressing further rain development. Low temperatures Monday night will drop to the low to mid 30s areas north of I-10 and to the mid to upper 30s along areas south of I-10. High temperatures will only reach the 50s on Tuesday. 24
PRELIMINARY POINT TEMPS/POPS. College Station (CLL) 62 62 34 53 30 / 40 50 0 0 0 Houston (IAH) 70 75 37 54 34 / 50 70 10 0 0 Galveston (GLS) 66 71 44 54 42 / 40 80 20 0 0
HGX WATCHES/WARNINGS/ADVISORIES. TX . NONE. GM . Small Craft Advisory from 6 PM Monday to 9 AM CST Tuesday for the following zones: Galveston Bay . Matagorda Bay.
SMALL CRAFT SHOULD EXERCISE CAUTION through Monday afternoon for the following zones: Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM . Coastal waters from High Island to Freeport TX out 20 NM . Galveston Bay . Matagorda Bay.
Gale Watch from Monday evening through Tuesday morning for the following zones: Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM . Coastal waters from High Island to Freeport TX out 20 NM . Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM . Waters from High Island to Freeport TX from 20 to 60 NM.
Small Craft Advisory until 6 PM CST Monday for the following zones: Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM . Waters from High Island to Freeport TX from 20 to 60 NM.
Discussion . 43 Aviation/Marine . 43
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 |
MGPT2 - 8770613 - Morgans Point, TX | 15 mi | 55 min | SE 7 G 8 | 64°F | 1010 hPa (+0.0) | |||
RLOT2 - 8770971 - Rollover Pass, TX | 18 mi | 55 min | SSE 6 G 7 | 67°F | 61°F | 1010.6 hPa (+0.0) | ||
EPTT2 - 8771013 - Eagle Point, TX | 21 mi | 55 min | SSE 7 G 8 | 64°F | 1009.7 hPa (+0.0) | |||
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 26 mi | 61 min | SSE 11 G 12 | 73°F | 62°F | 1009.3 hPa | ||
GTOT2 | 29 mi | 55 min | S 5.1 G 12 | 70°F | 63°F | 1010 hPa (+0.0) | ||
NCHT2 - 8770777 - Manchester, TX | 30 mi | 55 min | S 4.1 G 8.9 | 68°F | 1009.4 hPa (+0.0) | |||
GRRT2 | 31 mi | 55 min | S 5.1 G 6 | 64°F | 1009.8 hPa (+0.0) | |||
SRST2 - Sabine Pass, TX | 35 mi | 55 min | ESE 6 G 7 | 67°F | 1011 hPa (-0.4) | 67°F | ||
42035 - GALVESTON 22NM East of Galveston, TX | 38 mi | 35 min | 7.8 G 9.7 | 1011.3 hPa | ||||
KXIH | 39 mi | 20 min | S 15 | 72°F | 72°F | |||
PORT2 - 8770475 - Port Arthur, TX | 42 mi | 55 min | SE 2.9 G 5.1 | 67°F | 61°F | 1010.7 hPa (-0.3) | ||
SBPT2 - 8770570 - Sabine Pass North, TX | 44 mi | 55 min | ESE 4.1 G 5.1 | 65°F | 1012.8 hPa (-0.3) | |||
TXPT2 | 46 mi | 55 min | ESE 8 G 8 | 66°F | 63°F | 1009.8 hPa (+0.0) |
Wind History for Morgans Point, TX
(wind in knots) EDIT (on/off)  Help2 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 | 1 AM | |
Last 24hr | SE | E | SE | SE G7 | SE | SE | SE | SE | SE G10 | S G11 | S G15 | S G13 | S G14 | S G16 | S G13 | SE G11 | SE | SE G11 | SE | SE G13 | SE G11 | SE | SE | SE |
1 day ago | NW | NW | N | N | N | N | N | NE | NE | SE | SE G9 | SE | S | SE | SE G12 | SE | E | E | E G10 | E G12 | SE G11 | SE G10 | SE | SE |
2 days ago | SE | N | N | E | SE | S | SE G6 | SE | SE | SW G11 | SW | W G13 | W G10 | NW G11 | NW | W | W | N | NW | NW | NW |
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 |
Houston / Ellington, TX | 26 mi | 70 min | SSE 8 | 7.00 mi | Overcast | 70°F | 68°F | 94% | 1009.5 hPa |
Link to 5 minute data for KEFD
Wind History from EFD (wind in knots)
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 | 1 AM | |
Last 24hr | S | S | S | S | S | S | S | S | S G25 | S G20 | S | S G23 | S G22 | S | S | S | S | S | SE | |||||
1 day ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | E | SE | SE | E | E | E | E | Calm | E | E | SE | Calm | S | S | |||
2 days ago | Calm | Calm | SE | Calm | Calm | S | SW | SW | SW | SW | SW | SW | W | Calm | Calm | Calm | N | NW |
Tide / Current Tables for Point Barrow, Trinity Bay, Texas
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataPoint Barrow
Click for Map
Mon -- 02:31 AM CST 1.11 feet High Tide
Mon -- 07:07 AM CST Sunrise
Mon -- 11:01 AM CST Moonset
Mon -- 05:22 PM CST Sunset
Mon -- 05:27 PM CST -0.35 feet Low Tide
Mon -- 10:07 PM CST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:31 AM CST 1.11 feet High Tide
Mon -- 07:07 AM CST Sunrise
Mon -- 11:01 AM CST Moonset
Mon -- 05:22 PM CST Sunset
Mon -- 05:27 PM CST -0.35 feet Low Tide
Mon -- 10:07 PM CST Moonrise
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 |
0.9 | 1 | 1.1 | 1.1 | 1.1 | 1 | 1 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.7 | 0.5 | 0.2 | -0 | -0.2 | -0.3 | -0.3 | -0.3 | -0.1 | 0.1 | 0.3 | 0.5 |
Tide / Current Tables for Gilchrist, East Bay, Texas
EDIT (on/off)  Help One Week of DataGilchrist
Click for Map
Mon -- 07:05 AM CST Sunrise
Mon -- 10:59 AM CST Moonset
Mon -- 05:02 PM CST -0.39 feet Low Tide
Mon -- 05:21 PM CST Sunset
Mon -- 10:06 PM CST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 07:05 AM CST Sunrise
Mon -- 10:59 AM CST Moonset
Mon -- 05:02 PM CST -0.39 feet Low Tide
Mon -- 05:21 PM CST Sunset
Mon -- 10:06 PM CST Moonrise
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 |
1.2 | 1.2 | 1.1 | 1.1 | 1 | 1 | 1 | 1 | 1 | 0.9 | 0.8 | 0.7 | 0.5 | 0.3 | 0 | -0.2 | -0.3 | -0.4 | -0.3 | -0.1 | 0.1 | 0.4 | 0.7 | 1 |
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 Houston/Galveston, TX (2,6,7,8)
(on/off)  Help


Ground Weather Radar Station Houston/Galveston, TX
(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. |