Monday, July24, 2017 L-36.com


Marine Weather and Tides
Channelview, 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 6:34AMSunset 8:19PM Monday July 24, 2017 3:51 PM CDT (20:51 UTC) Moonrise 6:53AMMoonset 8:29PM Illumination 2% 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 Matagorda Bay-galveston Bay- 331 Pm Cdt Mon Jul 24 2017
Tonight..South winds 15 knots decreasing to 10 to 15 knots after midnight. Bay waters choppy becoming slightly choppy after midnight.
Tuesday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon.
Tuesday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Thursday..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Thursday night..South winds 5 to 10 knots. Bay waters smooth.
Friday..Southwest winds 5 to 10 knots. Bay waters smooth.
Friday night..Southwest winds 10 to 15 knots. Bay waters slightly choppy.
Saturday..Southwest winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Saturday night..South winds 5 to 10 knots becoming southwest after midnight. Bay waters smooth. A chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 331 Pm Cdt Mon Jul 24 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Winds this afternoon will remain around 10 to 15 knots and could increase again tonight. Light to moderate southerly winds and seas should continue for the rest of the week.

7 Day Forecast for Marine Location Near Channelview, TX
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location: 29.77, -95.08     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 242048
afdhgx
area forecast discussion
national weather service houston galveston tx
348 pm cdt Mon jul 24 2017

Discussion
Another line of storms beginning to fill in just north of the cwfa
this afternoon... And is expected to move into our NW counties thru
the early evening hours. Brief heavy rain and gusty winds are pos-
sible with these storms before sunset.

The upper ridge of high pressure building into the region from the
west will help to keep pops low and temperatures high across SE tx
tomorrow. Have kept the mention of isolated pops in for weds given
the persistence of models drawing a slug of slightly deeper moist-
ure into the area from the gulf. Progged pws up to 2.2" along with
daytime heating and the seabreeze should be the main catalysts for
storms. The strengthening ridge will lower pops once again for thu
and fri... With the main forecast issue then becoming elevated heat
indicies approaching our criteria threshold of 108.

Extended guidance still holding onto the idea of a front moving in
to the area from the NE this weekend. GFS remains the most aggres-
sive with this possibility, but the other models seem to be coming
around to this idea as well. Pws are currently progged to pool at
around 2.2-2.5" along and ahead of this boundary as it move across
the lower ms river valley with the western extent of this activity
in SE tx. While there is not a lot of confidence with the scenario
given this time of year, long-range models have been consistent so
far. 41

Marine
Weak high pressure over the northern gulf should allow for southwest
winds today. Winds become southeast by mid week with low pressure
deepening in the plains. Southerly winds then continue into the
weekend with some model guidance showing a frontal boundary stalling
across SE texas over the weekend. This may allow for winds to become
southwest over the weekend. Seas should remain around 2-3 feet
through the week, closer to 2 feet for the weekend.

Tldr; typical summer marine conditions with southerly winds and seas.

Overpeck

Preliminary point temps pops
College station (cll) 78 99 77 96 77 20 10 10 20 10
houston (iah) 76 96 77 92 77 10 10 10 20 20
galveston (gls) 82 92 82 89 83 10 10 10 20 20

Hgx watches warnings advisories
Tx... High rip current risk until 11 pm cdt this evening for the
following zones: brazoria... Chambers... Galveston.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LYBT2 0 mi51 min S 8 G 11 92°F 87°F1015 hPa (-1.8)
MGPT2 - 8770613 - Morgans Point, TX 8 mi51 min S 6 G 12 93°F 87°F1015 hPa (-1.6)
NCHT2 - 8770777 - Manchester, TX 10 mi51 min S 5.1 G 13 92°F 86°F1014.2 hPa (-1.6)
EPTT2 - 8771013 - Eagle Point, TX 22 mi51 min SSW 14 G 15 87°F 87°F1015.6 hPa (-1.3)
GRRT2 34 mi51 min S 9.9 G 12 87°F 87°F1015.8 hPa (-1.3)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 34 mi51 min S 13 G 16 86°F1015.4 hPa (-1.2)
GTOT2 35 mi51 min 88°F
RLOT2 - 8770971 - Rollover Pass, TX 35 mi51 min SSW 8 G 11 88°F 85°F1015.9 hPa (-1.3)
HIST2 39 mi51 min SSW 11 G 14 88°F 85°F1016 hPa (-1.3)
LUIT2 48 mi51 min SW 9.9 G 13 87°F 84°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX11 mi61 minSSW 108.00 miOvercast93°F73°F53%1015.9 hPa
Houston, Houston Hobby Airport, TX13 mi58 minS 910.00 miOvercast94°F72°F49%1015.3 hPa
John Dunn Helistop, TX17 mi56 minS 67.00 miFair99°F64°F33%1014.2 hPa
Houston, Pearland Regional Airport, TX19 mi58 minSW 68.00 miFair95°F64°F37%1015.6 hPa
Houston Intercontinental Airport, TX20 mi58 minSSW 1110.00 miMostly Cloudy95°F70°F44%1014.8 hPa

Wind History from EFD (wind in knots)
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Last 24hrS10S10S11S11S12S7S7S5S6------------SW4SW3SW5SW10SW9SW6S7S8S10
1 day agoS7S9S13----------S4S5S5--Calm--S3CalmS4SW8S9SW11--SW9SW9SW10
2 days agoE8S14SE7S9S7S5S3SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmSW4S5S7S3S10S8S8

Tide / Current Tables for Lynchburg Landing, San Jacinto River, Texas
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Lynchburg Landing
Click for Map
Mon -- 04:33 AM CDT     -0.17 feet Low Tide
Mon -- 06:35 AM CDT     Sunrise
Mon -- 07:53 AM CDT     Moonrise
Mon -- 01:03 PM CDT     1.39 feet High Tide
Mon -- 06:36 PM CDT     1.05 feet Low Tide
Mon -- 08:18 PM CDT     Sunset
Mon -- 08:57 PM CDT     1.09 feet High Tide
Mon -- 09:28 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.1-0-0.2-0.2-00.20.50.811.21.31.41.41.31.21.11.11.11.11.11.11

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Barbours Cut
Click for Map
Mon -- 03:35 AM CDT     -0.44 feet Low Tide
Mon -- 06:34 AM CDT     Sunrise
Mon -- 07:53 AM CDT     Moonrise
Mon -- 12:59 PM CDT     1.38 feet High Tide
Mon -- 08:17 PM CDT     Sunset
Mon -- 09:28 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.1-0.3-0.4-0.4-0.3-0.10.20.50.81.11.31.41.41.41.31.31.21.21.21.21.110.8

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 (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.