Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
San Leon, TX

Version 3.4
NOTICE
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 6:50AMSunset 7:55PM Wednesday August 21, 2019 3:17 PM CDT (20:17 UTC) Moonrise 10:39PMMoonset 11:03AM Illumination 63% Phase: Waning Gibbous; Moon at 21 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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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.
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.


7 Day Forecast for Marine Location Near San Leon, TX
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location: 29.48, -94.92     debug


Area Discussion for - Houston/Galveston, TX
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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.

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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
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 0 mi54 min SW 5.1 G 9.9 83°F 87°F1015.9 hPa
GRRT2 12 mi54 min S 6 G 8.9 88°F 88°F1016.1 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 13 mi54 min S 8 G 9.9 86°F 88°F1015.6 hPa
GTOT2 14 mi48 min SSE 6 G 9.9 89°F 88°F1016.3 hPa
MGPT2 - 8770613 - Morgans Point, TX 14 mi54 min SSE 11 G 14 89°F 89°F1016.3 hPa
RLOT2 - 8770971 - Rollover Pass, TX 22 mi48 min S 6 G 11 89°F 90°F1016.7 hPa
NCHT2 - 8770777 - Manchester, TX 25 mi54 min S 8.9 G 14 90°F 89°F1015.6 hPa
HIST2 29 mi54 min E 1 G 5.1 86°F 89°F1016.2 hPa
KXIH 30 mi23 min S 8 91°F 75°F
LUIT2 30 mi48 min SSE 6 G 8.9 89°F 86°F1016.4 hPa
42035 - GALVESTON 22NM East of Galveston, TX 32 mi28 min SSE 7.8 G 12 87°F 2 ft1017.1 hPa79°F
42043 - GA-252 TABS B 34 mi138 min SSW 7.8 G 16 87°F1017 hPa (+0.0)
FCGT2 - 8772447 - USCG Freeport, TX 42 mi54 min SE 8 G 8.9 86°F 85°F1016.9 hPa
FPST2 42 mi48 min ESE 7 G 8 86°F 86°F1016.1 hPa

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX15 mi26 minS 910.00 miPartly Cloudy92°F75°F60%1016.3 hPa
Houston / Ellington, TX16 mi28 minS 910.00 miMostly Cloudy91°F73°F56%1015.6 hPa
Houston, Pearland Regional Airport, TX17 mi25 minSE 810.00 miMostly Cloudy90°F70°F52%1016.3 hPa
Houston, Houston Hobby Airport, TX22 mi25 minS 1210.00 miPartly Cloudy93°F68°F44%1016 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
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Last 24hrE7----S5S6S8----S8------S9--S6S6S7----S8S8S7S8S10
1 day ago--S14S13S11S12S9S9--------------CalmSW5SW3SW3NW3NW3NE10W6S4SW5
2 days agoS15S16S14--S10S10S10S9------S12----S7S8S8S8S12--S12S12--S13

Tide / Current Tables for Eagle Point, Texas
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Eagle Point
Click for Map
Wed -- 12:40 AM CDT     0.79 feet High Tide
Wed -- 05:50 AM CDT     0.58 feet Low Tide
Wed -- 06:51 AM CDT     Sunrise
Wed -- 12:03 PM CDT     Moonset
Wed -- 12:04 PM CDT     0.88 feet High Tide
Wed -- 07:06 PM CDT     0.40 feet Low Tide
Wed -- 07:54 PM CDT     Sunset
Wed -- 11:38 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.80.70.60.60.60.60.70.70.80.90.90.90.80.70.60.50.40.40.40.50.50.6

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Wed -- 01:42 AM CDT     -0.00 knots Slack
Wed -- 03:55 AM CDT     -0.21 knots Max Ebb
Wed -- 06:08 AM CDT     0.00 knots Slack
Wed -- 06:50 AM CDT     Sunrise
Wed -- 08:25 AM CDT     0.26 knots Max Flood
Wed -- 10:12 AM CDT     -0.00 knots Slack
Wed -- 12:02 PM CDT     Moonset
Wed -- 03:41 PM CDT     -1.27 knots Max Ebb
Wed -- 07:26 PM CDT     0.00 knots Slack
Wed -- 07:53 PM CDT     Sunset
Wed -- 10:25 PM CDT     0.95 knots Max Flood
Wed -- 11:38 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.1-0-0.2-0.2-0.1-00.10.20.20-0.2-0.5-0.8-1.1-1.2-1.3-1.1-0.7-0.20.30.70.90.9

Weather Map and Satellite Images
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wmap_A
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
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weather_mapweather_map weather_map

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.