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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 6:51AM | Sunset 7:53PM | Friday August 23, 2019 8:44 AM CDT (13:44 UTC) | Moonrise 11:55PM | Moonset 12:55PM | Illumination 45% |  |
GMZ335 Expires:201908232215;;075651 Fzus54 Khgx 230901 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 401 Am Cdt Fri Aug 23 2019 Upper Texas Coastal Waters From High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 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 10 Percent Of The Waves. Gmz330-335-232215- Matagorda Bay-galveston Bay- 401 Am Cdt Fri Aug 23 2019
Today..South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. Showers likely in the morning. Scattered Thunderstorms. A chance of showers in the afternoon.
Tonight..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers in the evening, then scattered Thunderstorms and a chance of showers after midnight.
Saturday..Southeast winds 5 to 10 knots. Bay waters smooth. Showers likely in the morning. A chance of Thunderstorms. A chance of showers in the afternoon.
Saturday night..South winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A chance of showers and a slight chance of Thunderstorms.
Sunday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of Thunderstorms in the morning. A chance of showers. A chance of Thunderstorms in the afternoon.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Monday night..South winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Bay waters slightly choppy becoming choppy after midnight.
Tuesday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Today..South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. Showers likely in the morning. Scattered Thunderstorms. A chance of showers in the afternoon.
Tonight..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers in the evening, then scattered Thunderstorms and a chance of showers after midnight.
Saturday..Southeast winds 5 to 10 knots. Bay waters smooth. Showers likely in the morning. A chance of Thunderstorms. A chance of showers in the afternoon.
Saturday night..South winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A chance of showers and a slight chance of Thunderstorms.
Sunday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of Thunderstorms in the morning. A chance of showers. A chance of Thunderstorms in the afternoon.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Monday night..South winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Bay waters slightly choppy becoming choppy after midnight.
Tuesday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Bay waters slightly choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 401 Am Cdt Fri Aug 23 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Generally light to moderate onshore winds will prevail the next few days. Increasing moisture from the gulf will help to fuel the development of of scattered to widespread showers through the weekend.
Synopsis for high island to matagorda ship channel out 60 nm.. Generally light to moderate onshore winds will prevail the next few days. Increasing moisture from the gulf will help to fuel the development of of scattered to widespread showers through the weekend.
7 Day Forecast for Marine Location Near Texas City, TX
Hourly EDIT Helplocation: 29.47, -94.77 debug
Area Discussion for - Houston/Galveston, TX
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus64 khgx 231123 afdhgx area forecast discussion national weather service houston galveston tx 623 am cdt Fri aug 23 2019 Aviation [12z TAF issuance] Fairly messy day of flying conditions ahead as an upper trough moves up the western gulf coast. Main hazard will be the development of scattered to numerous showers and thunderstorms from cxo coastward.VFR CIGS and vsby for the most part, but both ceilings and visibility may degrade to MVFR or worse when rain and storms impact any terminals. Have tried to sketch out the most likely time for impacts to specific terminals with tempos, but be on the lookout for amendments today! Prev discussion issued 359 am cdt Fri aug 23 2019 Discussion - best chances of storms today and Saturday. Main hazard will be locally heavy rainfall with mainly street flooding possible. - chances of storms continue early next week but with coverage closer to isolated to widely scattered. - ridging builds over texas again leading to high temps back in the upper 90s next week. Short term [today and tonight] Radar shows a bit of activity over the gulf waters and immediate coastal areas late tonight, setting the stage for another day of scattered showers and thunderstorms. Goes-east shows precipitable water increasing towards the gulf, associated an upper trough that shows up very nicely on mid-level WV imagery. There is not a ton of convection going on with this feature quite yet, but there's a handful of showers popping up over the gulf. As the upper low and its moisture surge make their way up the western gulf coast, we should see it enhance the typical diurnal pattern of showers and storms. Because of this, I go as high as likely pops near the coast, but still keep a pretty sharp gradient with slight chance low end chance pops in the far inland around college station. Given the amount of moisture - precipitable water exceeding 2.25 inches - with deep warm cloud depths making for efficient precip moving into the picture, I certainly can't rule out some |
localized torrential rainfall from the strongest of the storms. If that falls over the wrong spots, we would certainly see a smattering of flooding on roads and poor drainage areas. However, a lot of the items on the checklist for widespread heavy rain aren't really there, which is reassuring. Luchs Long term [Saturday through Friday] Saturday's forecast looks to be a wash rinse repeat of today's forecast as higher moisture lingers over the area and the tropical wave located between SE texas and SW louisiana. Upper level ridging is virtually non-existent over the area so no real subsidence to worry about and convective initiation will be more of a function of day time heating and convergence from local boundaries moisture gradients. Precipitable water values will certainly be in that 2.1 to 2.3 inch amounts. Storm motions should be enough to keep storms moving to limit the overall flood threat but no doubt a storm could cause street flooding with this much moisture. Sunday into Monday we see a decrease in rain chances as precipitable water values rapidly decrease with the tropical wave moving east away from the region. To start the work week next week, there is a strong trough over the northern plains that supports NW flow aloft. Any frontal boundary with this trough stays north of the area likely stalling along the red river. By midweek the upper level ridge over the southern rockies expands over texas. This feature should persist through the rest of the week so have precipitation chances lowering through next Friday with high temperatures increasing back into the upper 90s for a larger portion of the area. Overpeck Preliminary point temps pops College station (cll) 97 77 96 76 97 30 10 30 10 20 houston (iah) 93 79 92 78 93 70 30 50 20 30 galveston (gls) 89 82 90 82 91 80 60 60 50 40 Hgx watches warnings advisories Tx... None. Gm... None. Short term... Luchs long term... Overpeck aviation... Luchs |
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 |
| EPTT2 - 8771013 - Eagle Point, TX | 8 mi | 63 min | S 7 G 8 | 82°F | 86°F | 1012.4 hPa | ||
| GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 8 mi | 63 min | SW 7 G 9.9 | 85°F | 86°F | 1012.2 hPa | ||
| GTOT2 | 11 mi | 63 min | SW 5.1 G 9.9 | 85°F | 88°F | 1013.1 hPa | ||
| GRRT2 | 13 mi | 63 min | WSW 6 G 7 | 84°F | 87°F | 1012.8 hPa | ||
| RLOT2 - 8770971 - Rollover Pass, TX | 14 mi | 57 min | SSE 13 G 15 | 81°F | 88°F | 1013.6 hPa | ||
| MGPT2 - 8770613 - Morgans Point, TX | 19 mi | 63 min | S 2.9 G 4.1 | 83°F | 87°F | 1013.3 hPa | ||
| HIST2 | 22 mi | 63 min | S 2.9 G 5.1 | 83°F | 87°F | 1013 hPa | ||
| KXIH | 24 mi | 50 min | SW 9.9 | 82°F | 73°F | |||
| 42035 - GALVESTON 22NM East of Galveston, TX | 25 mi | 45 min | SSW 16 G 21 | 82°F | 1014.6 hPa (+0.8) | 78°F | ||
| NCHT2 - 8770777 - Manchester, TX | 32 mi | 63 min | S 1.9 G 4.1 | 83°F | 88°F | 1012.5 hPa | ||
| LUIT2 | 33 mi | 57 min | SSW 8 G 11 | 85°F | 86°F | 1012.8 hPa | ||
| 42043 - GA-252 TABS B | 34 mi | 105 min | SSW 12 G 14 | 87°F | 1012.6 hPa (+0.7) | |||
| FPST2 | 46 mi | 63 min | S 9.9 G 12 | 85°F | 86°F | 1012.7 hPa |
Wind History for Eagle Point, TX
(wind in knots) EDIT (on/off) Help| 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 | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | |
| Last 24hr | SE | SE | SE | E G9 | E | SE | E | SE | SE G17 | SE | SE G17 | SE | S | S | S | S G14 | S | S | S | S | S | S | -- | SW |
| 1 day ago | SW | SW G10 | SE | SE | SE G4 | SW G14 | S | S | SE | SE | S | S | S | S | S | S | S | S G16 | S G13 | S | S | S | SE | S |
| 2 days ago | SW | S | E | SE | SW G14 | S | S | S G19 | S | SW | S | S | S | S | S | S | S | S | S | S | SW | SW | SW |
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 |
| Galveston, Scholes Field, TX | 15 mi | 53 min | SW 6 | 10.00 mi | Light Rain | 84°F | 78°F | 82% | 1013.4 hPa |
| Houston / Ellington, TX | 24 mi | 55 min | N 0 | 10.00 mi | Partly Cloudy | 82°F | 75°F | 79% | 1012.9 hPa |
| High Island 179A (Apache Corp), LA | 24 mi | 50 min | SW 10 | 4.00 mi | Fair with Haze | 82°F | 73°F | 74% | 1013.2 hPa |
Link to 5 minute data for KGLS
Wind History from GLS (wind in knots)
| 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 | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | |
| Last 24hr | SE | SE | SE | E | SE | E | E | SE | SE | SE | S | S | S | |||||||||||
| 1 day ago | S | S | S | S | S | S | S | SE | SE | SE | S | S | S | S | S | |||||||||
| 2 days ago | SW | NW | NW | NE | W | S | SW | E | S | S | S | S | S | S | S | S |
Tide / Current Tables for Port Bolivar, Texas
EDIT Weekend mode (on/off) (on/off) Help One Week of DataPort Bolivar
Click for Map
Fri -- 12:14 AM CDT Moonrise
Fri -- 12:34 AM CDT 1.23 feet High Tide
Fri -- 02:36 AM CDT 1.20 feet Low Tide
Fri -- 06:51 AM CDT Sunrise
Fri -- 07:36 AM CDT 1.31 feet High Tide
Fri -- 09:58 AM CDT Last Quarter
Fri -- 01:55 PM CDT Moonset
Fri -- 04:34 PM CDT 0.29 feet Low Tide
Fri -- 07:51 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:14 AM CDT Moonrise
Fri -- 12:34 AM CDT 1.23 feet High Tide
Fri -- 02:36 AM CDT 1.20 feet Low Tide
Fri -- 06:51 AM CDT Sunrise
Fri -- 07:36 AM CDT 1.31 feet High Tide
Fri -- 09:58 AM CDT Last Quarter
Fri -- 01:55 PM CDT Moonset
Fri -- 04:34 PM CDT 0.29 feet Low Tide
Fri -- 07:51 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 |
| 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.1 | 1 | 0.8 | 0.6 | 0.4 | 0.3 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.1 |
Tide / Current Tables for Bolivar Roads, Texas Current
EDIT (on/off) Help One Week of DataBolivar Roads
Click for Map
Fri -- 12:14 AM CDT Moonrise
Fri -- 06:12 AM CDT -0.00 knots Slack
Fri -- 06:51 AM CDT Sunrise
Fri -- 09:58 AM CDT Last Quarter
Fri -- 01:55 PM CDT Moonset
Fri -- 03:56 PM CDT -1.54 knots Max Ebb
Fri -- 07:51 PM CDT Sunset
Fri -- 08:20 PM CDT 0.00 knots Slack
Fri -- 11:57 PM CDT 1.52 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:14 AM CDT Moonrise
Fri -- 06:12 AM CDT -0.00 knots Slack
Fri -- 06:51 AM CDT Sunrise
Fri -- 09:58 AM CDT Last Quarter
Fri -- 01:55 PM CDT Moonset
Fri -- 03:56 PM CDT -1.54 knots Max Ebb
Fri -- 07:51 PM CDT Sunset
Fri -- 08:20 PM CDT 0.00 knots Slack
Fri -- 11:57 PM CDT 1.52 knots Max Flood
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 | 0.7 | 0.5 | 0.3 | 0.1 | 0 | -0.1 | -0.2 | -0.3 | -0.4 | -0.6 | -0.8 | -1.1 | -1.3 | -1.5 | -1.5 | -1.5 | -1.2 | -0.8 | -0.2 | 0.4 | 1 | 1.4 |
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 Houston/Galveston, TX (9,2,3,4)
(on/off) Help
Ground Weather Radar Station Houston/Galveston, TX
(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. |