Thursday, August17, 2017 L-36.com


Marine Weather and Tides
El Lago, 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 6:49AMSunset 7:59PM Thursday August 17, 2017 12:48 AM CDT (05:48 UTC) Moonrise 1:31AMMoonset 3:33PM Illumination 26% Phase: Waning Crescent; Moon at 25 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 Matagorda Bay-galveston Bay- 1048 Pm Cdt Wed Aug 16 2017
Rest of tonight..South winds 10 to 15 knots. Bay waters slightly choppy. Isolated showers.
Thursday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms in the morning.
Thursday night..South winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Friday..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Friday night..South winds 5 to 10 knots. Bay waters smooth.
Saturday..South winds around 5 knots becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and Thunderstorms.
Saturday night..South winds 5 to 10 knots. Bay waters smooth.
Sunday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.
Monday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A slight chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1048 Pm Cdt Wed Aug 16 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate onshore winds and elevated seas will continue into Thursday. By the end of the week and on into the start of next week, expect lighter winds and lower seas as gulf of mexico high pressure edges closer to our area.

7 Day Forecast for Marine Location Near El Lago, TX
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location: 29.56, -95.05     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 170435
afdhgx
area forecast discussion
national weather service houston galveston tx
1135 pm cdt Wed aug 16 2017

Aviation
No major changes with the tafs. Winds showers lingered a bit
longer than expected but are trending down and out. Guidance
keeping with another slug of higher pws moving into the area
tomorrow, so vcsh still looks on track. Otherwise, MVFR cigs
expected to develop at around sunrise for our northern sites.

41

Prev discussion issued 955 pm cdt Wed aug 16 2017
ongoing forecast is in good shape with just some insignificant
tweaks for the update... Mainly to match grids obs trends and also
keep some lowish pops along the coast and offshore. With warm
conditions and onshore winds not completely dropping off
overnight, most locations will probably see another record high
minimum temperature for thurs. (assuming no surprises prior to 1
am, iah hou gls will all break or tie one for today). 47
record high minimums:
today thurs
cll 79 1948 79 1997
iah 80 1987 80 1968
hou 79 2012 79 2012
gls 85 2012 84 2014

Preliminary point temps pops
College station (cll) 78 99 76 99 77 10 10 10 20 10
houston (iah) 80 96 78 96 78 10 20 10 20 10
galveston (gls) 84 91 83 90 82 20 20 10 20 10

Hgx watches warnings advisories
Tx... High rip current risk until midnight cdt tonight for the
following zones: brazoria... Chambers... Galveston...

matagorda.

Gm... Small craft should exercise caution until 7 am cdt Thursday for
the following zones: coastal waters from freeport to the
matagorda ship channel out 20 nm... Coastal waters from high
island to freeport out 20 nm... Waters from freeport to the
matagorda ship channel from 20 to 60 nm... Waters from high
island to freeport from 20 to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 9 mi49 min S 11 G 14 86°F 87°F1015.4 hPa (+0.7)
EPTT2 - 8771013 - Eagle Point, TX 9 mi49 min S 15 G 18 86°F 87°F1015.6 hPa (+0.8)
LYBT2 14 mi49 min S 8.9 G 12 85°F 87°F1015.5 hPa (+0.7)
NCHT2 - 8770777 - Manchester, TX 16 mi49 min S 5.1 G 12 85°F 85°F1014.4 hPa (+0.5)
GRRT2 20 mi49 min SSE 13 G 15 86°F 87°F1015.7 hPa (+0.7)
GTOT2 22 mi49 min 87°F 89°F
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 22 mi49 min S 15 G 21 87°F1015.3 hPa (+0.6)
RLOT2 - 8770971 - Rollover Pass, TX 29 mi49 min S 8.9 G 17 86°F 86°F1015.9 hPa (+0.6)
LUIT2 34 mi49 min SSE 13 G 18 86°F 89°F
HIST2 35 mi49 min S 9.9 G 15 86°F 88°F1015.9 hPa (+0.4)
KXIH 38 mi34 min SSW 14 G 21 86°F 79°F
42035 - GALVESTON 22NM East of Galveston, TX 41 mi59 min S 16 G 19 86°F 87°F4 ft1015.4 hPa (+0.0)81°F
FCGT2 - 8772447 - USCG Freeport, TX 45 mi49 min SSE 16 G 19 87°F 88°F1015.6 hPa (+0.6)

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX8 mi2 hrsSSE 510.00 miPartly Cloudy84°F75°F74%1015.9 hPa
Houston, Pearland Regional Airport, TX11 mi56 minSSE 59.00 miFair86°F78°F77%1015.6 hPa
Houston, Houston Hobby Airport, TX14 mi56 minS 510.00 miA Few Clouds85°F78°F80%1015.4 hPa
John Dunn Helistop, TX21 mi74 minSSE 11 G 158.00 miFair84°F77°F79%1014.2 hPa
Galveston, Scholes Field, TX22 mi57 minS 18 G 2310.00 miA Few Clouds and Breezy86°F80°F83%1015.8 hPa
Houston Southwest Airport, TX23 mi74 minN 010.00 miFair79°F77°F93%1015.6 hPa

Wind History from EFD (wind in knots)
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Last 24hrS3SE2S2S3S3SE4S3S4S11--S10S10S12
G19
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G20
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1 day agoS5S3S2SE3S3S3CalmCalmSW6SW8SW9--S10S10SW10
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2 days ago----------S4S5S5S7S12S10S6SW7--S10SE9S15S13S13S11S6S3S4S6

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Thu -- 01:04 AM CDT     -0.29 feet Low Tide
Thu -- 02:31 AM CDT     Moonrise
Thu -- 06:49 AM CDT     Sunrise
Thu -- 10:22 AM CDT     0.78 feet High Tide
Thu -- 03:07 PM CDT     0.70 feet Low Tide
Thu -- 04:32 PM CDT     Moonset
Thu -- 05:09 PM CDT     0.71 feet High Tide
Thu -- 07:58 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.3-0.3-0.100.20.40.60.70.80.80.80.80.70.70.70.70.70.70.60.50.30.1-0.1

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 01:38 AM CDT     2.06 knots Max Flood
Thu -- 02:30 AM CDT     Moonrise
Thu -- 06:48 AM CDT     Sunrise
Thu -- 08:15 AM CDT     -0.00 knots Slack
Thu -- 11:05 AM CDT     -0.48 knots Max Ebb
Thu -- 12:15 PM CDT     -0.46 knots Min Ebb
Thu -- 04:31 PM CDT     Moonset
Thu -- 06:44 PM CDT     -2.09 knots Max Ebb
Thu -- 07:56 PM CDT     Sunset
Thu -- 11:11 PM CDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.6221.81.410.60.30.1-0.2-0.4-0.5-0.5-0.5-0.7-1-1.4-1.8-2-2.1-1.9-1.6-1-0.2

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 (1,6,7,8)
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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.