Monday, August21, 2017 L-36.com


Marine Weather and Tides
Galena Park, 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 7:55PM Monday August 21, 2017 8:46 PM CDT (01:46 UTC) Moonrise 5:40AMMoonset 7:04PM Illumination 0% Phase: New Moon; Moon at 29 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- 341 Pm Cdt Mon Aug 21 2017
Tonight..Southeast winds 10 to 15 knots subsiding to 5 to 10 knots. Bay waters smooth to slightly choppy. A slight chance of showers and Thunderstorms.
Tuesday..Southeast winds near 10 knots. Bay waters smooth to slightly choppy. A chance of showers and Thunderstorms.
Tuesday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Wednesday..East winds around 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and Thunderstorms.
Wednesday night..Southeast winds 5 to 10 knots. 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. A chance of showers and Thunderstorms.
Thursday night..East winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A chance of showers and Thunderstorms.
Friday..East winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Saturday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Saturday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. 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 341 Pm Cdt Mon Aug 21 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Light winds and low seas are expected into midweek. We will be keeping an eye on the remnants of harvey to see if it can reorganize over the bay of campeche once it makes it there on Wednesday. If so, higher swells can be expected than currently in the forecast going into late week. There is considerable uncertainty at this time.

7 Day Forecast for Marine Location Near Galena Park, TX
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location: 29.72, -95.25     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 220021
afdhgx
area forecast discussion
national weather service houston galveston tx
721 pm cdt Mon aug 21 2017

Aviation
Storms have moved out of the metro terminals with only a few left
on the radar near 66r and east and southeast of cll. OvernightVFR
with the possibility (though slim) that brief MVFR fog cigs
develop at uts lbx cxo toward morning. Model soundings showing
increased subsidence with drier air aloft and less low level
moisture to work with so have tweaked tafs to mainly vcsh after
18z. Winds decouple tonight then come back up after sunrise but
only 4-8kts for the most part out of the se... Overall quiet
aviation wx.

45

Prev discussion issued 414 pm cdt Mon aug 21 2017
discussion...

mainly scattered showers (only storm at the bottom of the hour
was in central liberty county) beginning to get going across the
second tier counties this afternoon... Quickly moving northwest and
dissipating after a half an hour with new convection forming
along their westward propagating outflow boundaries. Ambient
temperatures climbed into the average lower 90s... Interior dew
points mixing out into the lower 70s affording near 100 f heat
indices. Closer to the coast where there is less cloud cover post
seas breeze passage... Heat indices are closer to 103 to 105 f as
dew points remain in the mid to upper 70s. Static synoptic pattern
in store for tomorrow so not much change from today. Overnight
middle 70s lower 80s at coast under mainly clear skies with the
only subtle change being on maximum t numbers. Stronger western
texas ridging nudging eastward may push mid to late afternoon
interior temperatures up into the middle 90s. 30 pops in the
vicinity of the sea breeze front to mainly account for towering cu
reaching their full potential during the heat of the day.

The buzz around the local offices has been about how the nwp model
suite is handling the evolution of what may become TC harvey.

They are very aggressive in taking the remnants of harvey across
the yucatan tomorrow and placing them into the southern bay of
campeche by tomorrow night into Wednesday morning... .Eventually
taking a tropical storm or hurricane into the valley and meandering
it across south central texas through the weekend. Granted that
this wave will be entering a less sheared environment as the
central gulf wide cyclonic circulation inverted trough moves into
the western gulf... But much remains uncertain especially since
harvey is currently a wave heading west towards the belize
coastline. Have remained conservative on increasing pops impacts
from mid week onward due to very low confidence... .Primarily stuck
to the generic 30-40 daily precipitation chances until better
focus comes into play (that time affords) from the evolution of
this wave across the yucatan peninsula. So... In essence... If the
deterministic runs pan out then it will become a very busy week
for south and central texas. The other scenario of this wave harvey
moving into southern bay of campeche and then steering west into
central mexico makes this a persistent forecast of partially cloudy
days... Mid-upper 70s low-mid 90s and late morning through afternoon
20 to near 40 pops. Let's prepare for the former and hope for the
latter scenario... ..31
marine...

continued light moderate winds and low seas are expected into
midweek. Scattered late night and morning showers and thunderstorms
will also persist. The forecast becomes considerably more uncertain
during the second half of the week. We'll be keeping an eye on the
remnants of harvey and whether or not it can redevelop once it moves
into the bay of campeche sometime wed. Guidance seems to think
that's a possibility and would send some elevated swells toward the
texas coast if that's the case. Nudged seas up a touch in this
forecast package... Maybe not enough if it does. Prefer to watch
trends before going much higher attm. 47

Preliminary point temps pops
College station (cll) 75 98 76 99 75 10 20 10 20 30
houston (iah) 76 95 77 96 77 20 30 10 30 30
galveston (gls) 82 92 82 91 82 20 30 10 30 20

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 41
aviation marine... 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCHT2 - 8770777 - Manchester, TX 1 mi47 min SE 7 G 9.9 87°F 87°F1016.5 hPa (+0.8)
LYBT2 10 mi47 min SSE 8.9 G 13 86°F 88°F1017.5 hPa (+0.5)
MGPT2 - 8770613 - Morgans Point, TX 14 mi47 min ESE 7 G 11 86°F 89°F1017.4 hPa (+0.4)
EPTT2 - 8771013 - Eagle Point, TX 24 mi47 min SE 11 G 14 87°F 90°F1017.6 hPa (+0.3)
GRRT2 34 mi47 min E 8 G 9.9 86°F 90°F1017.5 hPa (+0.3)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 37 mi47 min ESE 8.9 G 12 89°F1017.2 hPa (+0.4)
GTOT2 37 mi47 min 86°F 89°F
RLOT2 - 8770971 - Rollover Pass, TX 42 mi47 min SE 8.9 G 9.9 86°F 90°F1017.7 hPa (+0.4)
LUIT2 45 mi47 min ENE 7 G 11 86°F 91°F
HIST2 46 mi47 min ESE 4.1 G 5.1 85°F 89°F1017.8 hPa (+0.3)

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston, Houston Hobby Airport, TX5 mi54 minESE 710.00 miPartly Cloudy89°F73°F59%1017.3 hPa
Houston / Ellington, TX8 mi1.9 hrsESE 910.00 miPartly Cloudy90°F71°F55%1017.3 hPa
Houston, Pearland Regional Airport, TX14 mi54 minSE 510.00 miFair89°F73°F59%1017.4 hPa
Houston Intercontinental Airport, TX18 mi54 minE 810.00 miPartly Cloudy82°F73°F77%1017.1 hPa
Houston Southwest Airport, TX19 mi52 minSE 410.00 miFair83°F73°F73%1017.3 hPa
Houston, Sugar Land Municipal / Hull Field Airport, TX22 mi54 minSSE 1010.00 miFair88°F72°F59%1016.8 hPa

Wind History from HOU (wind in knots)
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Last 24hrS4SE4SE3CalmS3CalmCalmCalmCalmCalmCalmCalmSE4SE5E6SE7SE9SE10E7S11SE8SE6SE9SE7
1 day agoS6S6S4S6SW4CalmSW3SW3CalmCalmCalmCalmCalmW4SW4CalmCalmSE7S15
G20
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2 days agoS9S6S7S3S5S4CalmCalmCalmCalmCalmCalmW5W7W6W64W53S4SE10SE8SE8S8

Tide / Current Tables for Houston Ship Channel, Galveston Bay, Manchester, Texas
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Houston Ship Channel
Click for Map
Mon -- 03:28 AM CDT     -0.20 feet Low Tide
Mon -- 06:39 AM CDT     Moonrise
Mon -- 06:52 AM CDT     Sunrise
Mon -- 11:17 AM CDT     1.43 feet High Tide
Mon -- 01:31 PM CDT     New Moon
Mon -- 04:26 PM CDT     1.10 feet Low Tide
Mon -- 07:55 PM CDT     Sunset
Mon -- 08:03 PM CDT     Moonset
Mon -- 08:21 PM CDT     1.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.2-0.1-0.2-0.2-00.20.60.91.21.31.41.41.31.31.21.11.11.21.31.31.31.21

Tide / Current Tables for San Jacinto Battleground State Historic Site, Texas
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San Jacinto Battleground State Historic Site
Click for Map
Mon -- 03:05 AM CDT     0.21 feet Low Tide
Mon -- 06:38 AM CDT     Moonrise
Mon -- 06:51 AM CDT     Sunrise
Mon -- 11:12 AM CDT     1.72 feet High Tide
Mon -- 01:31 PM CDT     New Moon
Mon -- 04:11 PM CDT     1.43 feet Low Tide
Mon -- 07:49 PM CDT     1.56 feet High Tide
Mon -- 07:54 PM CDT     Sunset
Mon -- 08:03 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.50.30.20.30.40.711.31.51.71.71.71.61.61.51.41.41.51.51.61.51.41.2

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 (21,6,7,8)
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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.