Wednesday, August23, 2017 L-36.com


Marine Weather and Tides
San Leon, TX

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:51AMSunset 7:52PM Wednesday August 23, 2017 3:13 AM CDT (08:13 UTC) Moonrise 7:42AMMoonset 8:22PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 1033 Pm Cdt Tue Aug 22 2017
Rest of tonight..Southeast winds 5 to 10 knots becoming south after midnight. Bay waters smooth. Isolated showers late.
Wednesday..North winds around 5 knots becoming east in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Wednesday night..Southeast winds 5 to 10 knots becoming east after midnight. Bay waters smooth. A slight chance of showers and Thunderstorms.
Thursday..Northeast winds 5 to 10 knots becoming east in the afternoon. Bay waters smooth becoming smooth to slightly choppy in the afternoon. A chance of showers and Thunderstorms.
Thursday night..East winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Bay waters slightly choppy becoming choppy after midnight. A chance of showers and Thunderstorms.
Friday..East winds 15 to 20 knots becoming 15 to 25 knots in the afternoon. Bay waters choppy. Showers and Thunderstorms likely. Some Thunderstorms may produce gusty winds, and heavy rainfall.
Friday night..Southeast winds 20 to 25 knots becoming 20 to 30 knots after midnight. Bay waters rough. Showers and Thunderstorms likely. Some Thunderstorms may produce gusty winds, and heavy rainfall.
Saturday..South winds 20 to 25 knots. Bay waters rough. Showers and Thunderstorms likely. Some Thunderstorms may produce gusty winds, and heavy rainfall.
Saturday night..South winds 15 to 20 knots. Bay waters choppy. Showers and Thunderstorms likely. Some Thunderstorms may produce gusty winds, and heavy rainfall.
Sunday..South winds 15 to 20 knots. Bay waters choppy. Showers and Thunderstorms likely. Some Thunderstorms may produce gusty winds, and heavy rainfall.
Sunday night..South winds 15 to 20 knots. Bay waters choppy. Showers and Thunderstorms likely. Some Thunderstorms may produce gusty winds, and heavy rainfall.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1033 Pm Cdt Tue Aug 22 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Light winds and low seas are expected into Wednesday. SWells from the remnants of harvey over the southern gulf are expected to arrive by Thursday. This could also lead to higher tides affecting the upper texas coast by Thursday night and Friday morning. Mariners should continue to Monitor the possible redevelopment of harvey and its eventual track. If harvey reforms, higher winds and seas will be possible during the last part of the week into the weekend. Mariners are urged to keep up with the latest forecast.

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 230452
afdhgx
area forecast discussion
national weather service houston galveston tx
1152 pm cdt Tue aug 22 2017

Aviation
Dry conditions are expected near the terminals overnight with
tsra shra developing near galveston around sunrise and spreading
inland with daytime heating during the morning and early afternoon
hours. Regional radars show convection along a frontal boundary
draped across north and central texas with associated outflow
nudging this activity farther south. Expect this boundary to
remain well north of the terminals through most of the TAF period,
but a weak wind shift may approach college station or huntsville
late in the TAF period and result in a few isolated shra.

Otherwise,VFR conditions are expected to prevail through the taf
period with winds less than 10 knots and variable.

Huffman

Prev discussion issued 1022 pm cdt Tue aug 22 2017
discussion...

short term... Storms have dissipated and skies clearing out so
should be quiet warm night across the area. Showers redeveloping
after midnight offshore and eventually spreading inland around
sunrise or shortly after. Minor tweaks to the current forecast
with this update.

Longer term with the tropics... Remnant low level circulation of
harvey sitting right on the shoreline on the NW corner of yucatan
peninsula and should drift off overnight. NAM (notoriously bad in
the extended periods) showing the very favorable development
environment which the other models from earlier today also point
to so hard to argue with that. Overall we are still in a dust off
the hurricane plan-flip to your checklist and make sure it is
ready to implement given the current track forecasts which bring
the impacts (very heavy rainfall 7+ surge winds) from the system
to tx. Very concerning is the slow movement and possible
meanderings in or around setx over the weekend into Tuesday which
could lead to a couple of core rain events. There could be some
extreme rain amounts if it does in fact reach into the area and
meander around for days and nights.

45
college station (cll) 76 98 76 95 76 10 30 30 40 40
houston (iah) 77 95 77 94 77 10 30 20 40 40
galveston (gls) 82 91 83 91 82 20 30 20 40 50
hgx watches warnings advisories...

tx... None.

Gm... None.

Preliminary point temps pops
College station (cll) 76 98 76 95 76 10 30 30 40 40
houston (iah) 76 95 77 94 77 10 30 20 40 40
galveston (gls) 82 91 83 91 82 20 30 20 40 50

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 45
aviation marine... 14


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 0 mi43 min WNW 4.1 G 4.1 81°F 89°F1015.4 hPa
GRRT2 12 mi43 min SSE 4.1 G 6 85°F 88°F1015.3 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 13 mi43 min SSE 5.1 G 7 88°F1014.9 hPa
MGPT2 - 8770613 - Morgans Point, TX 14 mi43 min SW 1.9 G 2.9 84°F 88°F1015.3 hPa
GTOT2 14 mi43 min 85°F 89°F
LYBT2 21 mi43 min S 1.9 G 2.9 82°F 88°F1015.5 hPa
RLOT2 - 8770971 - Rollover Pass, TX 22 mi43 min S 2.9 G 4.1 84°F 86°F1015.4 hPa
NCHT2 - 8770777 - Manchester, TX 25 mi43 min W 1.9 G 2.9 82°F 86°F1014.6 hPa
HIST2 29 mi43 min NNE 1.9 G 1.9 80°F 88°F1015.6 hPa
KXIH 30 mi48 min S 5.1 86°F 73°F
LUIT2 30 mi43 min S 2.9 G 4.1 84°F
42035 - GALVESTON 22NM East of Galveston, TX 32 mi73 min SSE 5.8 G 7.8 85°F 88°F2 ft1015.7 hPa (-0.0)76°F
FCGT2 - 8772447 - USCG Freeport, TX 42 mi43 min SSE 6 G 6 85°F 89°F1015.5 hPa
SRST2 - Sabine Pass, TX 49 mi73 min S 2.9 G 4.1 84°F 1016 hPa (+0.0)75°F

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX15 mi21 minSSE 410.00 miMostly Cloudy83°F77°F82%1015.3 hPa
Houston / Ellington, TX16 mi23 minN 010.00 miA Few Clouds81°F73°F79%1015.9 hPa
Houston, Pearland Regional Airport, TX17 mi20 minN 010.00 miFair79°F73°F82%1015.5 hPa
Houston, Houston Hobby Airport, TX22 mi20 minN 010.00 miA Few Clouds80°F73°F79%1015.6 hPa

Wind History from GLS (wind in knots)
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Last 24hrS5CalmCalmCalmCalmNW34N5N5SE43E9SE8SE11SE8SE10SE8SE8S5S6S8S4S6S4
1 day agoS7SE6SE7SE5SE6SE9SE9SE8SE8SE8SE9SE10SE9SE10SE11SE9SE7SE6SE11SE9SE9S8S5S7
2 days agoCalmCalmNW3CalmCalmNW3W4CalmSE6E9E10E10
G17
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Tide / Current Tables for Eagle Point, Galveston Bay, Texas
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Eagle Point
Click for Map
Wed -- 02:40 AM CDT     0.27 feet Low Tide
Wed -- 06:52 AM CDT     Sunrise
Wed -- 08:41 AM CDT     Moonrise
Wed -- 10:50 AM CDT     1.03 feet High Tide
Wed -- 03:31 PM CDT     0.91 feet Low Tide
Wed -- 07:42 PM CDT     0.99 feet High Tide
Wed -- 07:51 PM CDT     Sunset
Wed -- 09:22 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.40.30.30.30.40.60.70.9111110.90.90.90.911110.90.8

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Wed -- 03:39 AM CDT     0.00 knots Slack
Wed -- 06:33 AM CDT     1.47 knots Max Flood
Wed -- 06:52 AM CDT     Sunrise
Wed -- 08:41 AM CDT     Moonrise
Wed -- 11:29 AM CDT     -0.00 knots Slack
Wed -- 02:19 PM CDT     -0.46 knots Max Ebb
Wed -- 04:37 PM CDT     0.00 knots Slack
Wed -- 06:09 PM CDT     0.29 knots Max Flood
Wed -- 07:43 PM CDT     -0.00 knots Slack
Wed -- 07:50 PM CDT     Sunset
Wed -- 09:21 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.7-1.5-1.2-0.50.311.41.41.20.80.40.1-0.1-0.3-0.5-0.4-0.20.10.30.2-0.1-0.5-0.9-1.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Houston/Galveston, TX (4,6,7,8)
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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.