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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 7:58PM | Wednesday August 21, 2019 3:22 PM CDT (20:22 UTC) | Moonrise 10:41PM | Moonset 11:06AM | Illumination 63% |  |
GMZ335 Galveston Bay- 1009 Am Cdt Wed Aug 21 2019
Rest of today..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Tonight..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
Thursday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Thursday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers in the evening, then a chance of showers after midnight. A slight chance of Thunderstorms late.
Friday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers in the morning. A chance of Thunderstorms. Showers likely in the afternoon.
Friday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Saturday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and a slight chance of Thunderstorms.
Saturday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Sunday..South winds 5 to 10 knots. Bay waters smooth. A slight chance of Thunderstorms in the morning. A chance of showers. A chance of Thunderstorms in the afternoon.
Sunday night..South winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers in the evening, then a chance of showers after midnight.
Rest of today..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Tonight..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
Thursday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Thursday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers in the evening, then a chance of showers after midnight. A slight chance of Thunderstorms late.
Friday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers in the morning. A chance of Thunderstorms. Showers likely in the afternoon.
Friday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Saturday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and a slight chance of Thunderstorms.
Saturday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Sunday..South winds 5 to 10 knots. Bay waters smooth. A slight chance of Thunderstorms in the morning. A chance of showers. A chance of Thunderstorms in the afternoon.
Sunday night..South winds around 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers in the evening, then a chance of showers after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1009 Am Cdt Wed Aug 21 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Onshore flow will persist tonight through the remainder of the week as high pressure continues to build into the the central gulf of mexico. Periods of scattered showers and Thunderstorms are expected in the coastal waters over the next several days and may result in some brief gusty winds. Winds are forecast to increase towards the end of the week and into the weekend along with an increase in shower and Thunderstorm activity.
Synopsis for high island to matagorda ship channel out 60 nm.. Onshore flow will persist tonight through the remainder of the week as high pressure continues to build into the the central gulf of mexico. Periods of scattered showers and Thunderstorms are expected in the coastal waters over the next several days and may result in some brief gusty winds. Winds are forecast to increase towards the end of the week and into the weekend along with an increase in shower and Thunderstorm activity.
7 Day Forecast for Marine Location Near Hunters Creek Village, TX
Hourly EDIT Helplocation: 29.76, -95.46 debug
Area Discussion for - Houston/Galveston, TX
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus64 khgx 211817 afdhgx area forecast discussion national weather service houston galveston tx 117 pm cdt Wed aug 21 2019 Aviation [18z TAF issuance] Vfr conditions will prevail across all TAF sites through the evening. Some vcsh or vcts are expected over the next few hours from iah and down towards the coast, and then dissipate towards shortly after 00z. Only concern overnight is some MVFR CIGS at cxo with some patchy fog. Tomorrow will see more isolated afternoon showers and thunderstorms impacting mainly the coastal TAF sites in the late morning, then up towards houston by the afternoon. Fowler Prev discussion issued 957 am cdt Wed aug 21 2019 Discussion Temperatures across southeast texas are currently in the mid to upper 80s and are expected to continue to rise up to the low to upper 90s this afternoon. Passing showers are currently moving north to northeast across the gulf waters and will reach the coastal regions within the hour. Isolated showers have begun to develop inland across the chambers and liberty counties, and additional development can be expected across galveston and |
brazoria counties shortly. By late morning and early afternoon, expect additional showers and thunderstorms developing south of i-10 and east of i-45, gradually spreading northward by mid to late afternoon. No significant impacts are expected with this activity, however, strong showers and thunderstorms will be capable of producing heavy rainfall, lightning, and brief gusty winds. With the heavy rainfall, reduced visibility and ponding of water on roadways is possible. Showers and thunderstorms will dissipate in the evening, with skies gradually clearing. A light southerly wind flow will continue across the local region. Only slight changes were made to the inherited forecast to represent the current weather and temperature observations. 24 Preliminary point temps pops College station (cll) 76 98 76 97 76 0 10 0 30 10 houston (iah) 79 94 78 93 78 20 30 10 50 20 galveston (gls) 83 93 84 92 84 20 50 50 50 50 Hgx watches warnings advisories Tx... 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 |
| NCHT2 - 8770777 - Manchester, TX | 11 mi | 59 min | S 8.9 G 14 | 90°F | 89°F | 1015.6 hPa | ||
| MGPT2 - 8770613 - Morgans Point, TX | 26 mi | 59 min | SSE 11 G 14 | 89°F | 89°F | 1016.3 hPa | ||
| EPTT2 - 8771013 - Eagle Point, TX | 35 mi | 59 min | SW 5.1 G 9.9 | 83°F | 87°F | 1015.9 hPa | ||
| GRRT2 | 44 mi | 59 min | S 6 G 8.9 | 88°F | 88°F | 1016.1 hPa | ||
| GTOT2 | 47 mi | 53 min | SSE 6 G 9.9 | 89°F | 88°F | 1016.3 hPa | ||
| GNJT2 - 8771341 - Galveston Bay (North Jetty), TX | 48 mi | 59 min | S 8 G 9.9 | 86°F | 88°F | 1015.6 hPa |
Wind History for Morgans Point, TX
(wind in knots) EDIT (on/off) Help| 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 | 2 PM | |
| Last 24hr | S | S G8 | S G11 | S G9 | S G7 | S | S | S | S G9 | S G11 | S | S | S G10 | S | S G6 | S G6 | SW | SW | S | S G8 | S G6 | SE | S G16 | SE G9 |
| 1 day ago | SE G15 | S G14 | NE | S G14 | S G14 | S G13 | S G11 | S G11 | S G10 | SW | SW G7 | SW G6 | SE G4 | SW | SW | E | -- | NW | NW | SE | NW | N | SW G19 | SW G11 |
| 2 days ago | -- | S G14 | S G17 | S G17 | S G14 | S G14 | S G14 | S G13 | S G13 | S G14 | S G10 | S G13 | S G8 | S G9 | S | S | SW G6 | S G5 | S | SW | S | S G11 | SE G12 | SE G12 |
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 |
| John Dunn Helistop, TX | 5 mi | 28 min | Var 4 G 11 | 9.00 mi | A Few Clouds | 95°F | 69°F | 44% | 1015.6 hPa |
| Houston, Houston Hobby Airport, TX | 12 mi | 30 min | S 12 | 10.00 mi | Partly Cloudy | 93°F | 68°F | 44% | 1016 hPa |
| Houston, Sugar Land Municipal / Hull Field Airport, TX | 14 mi | 30 min | SSE 12 | 7.00 mi | Rain | 80°F | 75°F | 87% | 1016 hPa |
| Houston Intercontinental Airport, TX | 16 mi | 30 min | N 0 | 10.00 mi | Mostly Cloudy | 94°F | 66°F | 41% | 1015 hPa |
| Houston / Ellington, TX | 18 mi | 33 min | S 9 | 10.00 mi | Mostly Cloudy | 91°F | 73°F | 56% | 1015.6 hPa |
| Houston Southwest Airport, TX | 18 mi | 28 min | S 4 | 10.00 mi | Mostly Cloudy | 88°F | 72°F | 61% | 1016.6 hPa |
| Houston, Pearland Regional Airport, TX | 20 mi | 30 min | SE 8 | 10.00 mi | Mostly Cloudy | 90°F | 70°F | 52% | 1016.3 hPa |
| Houston, Hooks Memorial Airport, TX | 22 mi | 30 min | SE 6 | 10.00 mi | Partly Cloudy | 92°F | 69°F | 47% | 1015 hPa |
| Houston Executive Airport, TX | 23 mi | 28 min | SSW 9 | 10.00 mi | Mostly Cloudy | 95°F | 68°F | 41% | 1015.9 hPa |
Link to 5 minute data for KMCJ
Wind History from MCJ (wind in knots)
| 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 | 2 PM | 3 PM | |
| Last 24hr | Calm | Calm | Calm | Calm | Calm | Calm | G11 | |||||||||||||||||
| 1 day ago | Calm | G11 | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S G24 | Calm | |||||||
| 2 days ago | S G15 | G13 | G16 | S | G10 | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | G12 | G11 |
Tide / Current Tables for Lynchburg Landing, San Jacinto River, Texas
EDIT Weekend mode (on/off) (on/off) Help One Week of DataLynchburg Landing
Click for Map
Wed -- 01:46 AM CDT 0.94 feet High Tide
Wed -- 06:51 AM CDT Sunrise
Wed -- 07:06 AM CDT 0.76 feet Low Tide
Wed -- 12:04 PM CDT Moonset
Wed -- 12:54 PM CDT 1.04 feet High Tide
Wed -- 07:55 PM CDT Sunset
Wed -- 08:17 PM CDT 0.41 feet Low Tide
Wed -- 11:39 PM CDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:46 AM CDT 0.94 feet High Tide
Wed -- 06:51 AM CDT Sunrise
Wed -- 07:06 AM CDT 0.76 feet Low Tide
Wed -- 12:04 PM CDT Moonset
Wed -- 12:54 PM CDT 1.04 feet High Tide
Wed -- 07:55 PM CDT Sunset
Wed -- 08:17 PM CDT 0.41 feet Low Tide
Wed -- 11:39 PM CDT 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 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 | 1 | 1 | 1 | 1 | 0.9 | 0.8 | 0.6 | 0.5 | 0.5 | 0.4 | 0.4 | 0.5 | 0.6 |
Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
EDIT (on/off) Help One Week of DataClear Lake
Click for Map
Wed -- 02:50 AM CDT 0.54 feet High Tide
Wed -- 06:51 AM CDT Sunrise
Wed -- 07:44 AM CDT 0.36 feet Low Tide
Wed -- 12:04 PM CDT Moonset
Wed -- 02:30 PM CDT 0.63 feet High Tide
Wed -- 07:54 PM CDT Sunset
Wed -- 09:30 PM CDT 0.19 feet Low Tide
Wed -- 11:39 PM CDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:50 AM CDT 0.54 feet High Tide
Wed -- 06:51 AM CDT Sunrise
Wed -- 07:44 AM CDT 0.36 feet Low Tide
Wed -- 12:04 PM CDT Moonset
Wed -- 02:30 PM CDT 0.63 feet High Tide
Wed -- 07:54 PM CDT Sunset
Wed -- 09:30 PM CDT 0.19 feet Low Tide
Wed -- 11:39 PM CDT 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 |
| 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 |
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 (16,3,4,5)
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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. |