Thursday, September21, 2017 L-36.com


Marine Weather and Tides
Anahuac, 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 7:07AMSunset 7:17PM Thursday September 21, 2017 4:15 PM CDT (21:15 UTC) Moonrise 7:23AMMoonset 7:30PM 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 Matagorda Bay-galveston Bay- 310 Pm Cdt Thu Sep 21 2017
Tonight..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms early in the evening. A slight chance of showers and Thunderstorms after midnight.
Friday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Saturday..East winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Saturday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Sunday..East winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A chance of showers and Thunderstorms.
Sunday 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.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
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.
Tuesday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A chance of showers and Thunderstorms.
Tuesday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. 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 310 Pm Cdt Thu Sep 21 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Light to moderate southeast winds and seas near 3 feet will continue well into next week. Periods of showers and Thunderstorms are expected across the waters each day, with the greatest potential during the early morning hours.

7 Day Forecast for Marine Location Near Anahuac, TX
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location: 29.73, -94.7     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 212032
afdhgx
area forecast discussion
national weather service houston galveston tx
332 pm cdt Thu sep 21 2017

Discussion
Scattered to numerous slow moving showers and thunderstorms continue
across southeast texas this afternoon as a disturbance moves eastward
across the area. The slow moving activity and precipitable water values
above 2 inches have brought locally heavy rainfall to the area resulting
in several advisories warnings. At one point, a harris county flood
warning system rain gage (cypress creek at huffmeister) had rainfall
rates of 0.48 inches in 5 minutes and 0.80 inches in 10 minutes. Expect
decreasing coverage intensity late this afternoon through early this
evening. The area remains on the southern fringes of ridging both at
the surface and aloft, and enough heating should allow for some mainly
daytime shower and thunderstorm development over the next several days.

But compared to today, expect to see much less coverage for the end
of the week and over the weekend with lower precipitable water values.

Still looking at an eventual increase in rain chances next week as
mid upper level ridging edges eastward and a western u.S. Trough gradually
works its way toward the east. Will be carrying higher rain chances
as we head on into the middle to end of the week when the trough and
associated slow moving cold front begin to work their way toward our
area. Will need to keep a close eye on model trends over the next several
days as some have precipitable water values approaching a very high
2.50 inches under the persistent onshore flow ahead of the slow moving
boundary. This potential heavy rain event is still many days away,
and a lot can change with the models. Obviously, our area does not
need to see another significant rainfall event as the harvey recovery
continues. 42

Marine
Light to moderate southeast winds and seas around 3 feet are
forecast to persist along the upper texas coast through at least the
next week. Scattered showers and a few thunderstorms will be possible
each day through the forecast period, with the greatest chances during
the morning hours.

Preliminary point temps pops
College station (cll) 73 91 72 92 72 30 20 10 20 10
houston (iah) 73 91 72 90 73 30 20 10 20 10
galveston (gls) 80 89 78 89 80 30 20 10 20 10

Hgx watches warnings advisories
Tx... None.

Gm... None.

11 42


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 15 mi46 min ESE 7 G 8 76°F 83°F1014.5 hPa
RLOT2 - 8770971 - Rollover Pass, TX 18 mi46 min SSW 6 G 8.9 80°F 84°F1014.7 hPa
HIST2 19 mi46 min SSE 6 G 8.9 83°F 84°F1014.7 hPa
EPTT2 - 8771013 - Eagle Point, TX 21 mi46 min N 2.9 G 4.1 74°F 84°F1014.4 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 26 mi46 min SSE 14 G 18 85°F1013.7 hPa
GTOT2 29 mi46 min 80°F 85°F
NCHT2 - 8770777 - Manchester, TX 30 mi46 min SSW 2.9 G 5.1 76°F 82°F1013.5 hPa
GRRT2 31 mi46 min SSW 2.9 G 5.1 78°F 85°F1014.3 hPa
SRST2 - Sabine Pass, TX 35 mi76 min SE 12 G 13 83°F 1015.3 hPa (-1.5)76°F
42035 - GALVESTON 22NM East of Galveston, TX 38 mi76 min SE 12 G 14 83°F 84°F3 ft1014.9 hPa (-1.0)78°F
KXIH 39 mi41 min
PORT2 - 8770475 - Port Arthur, TX 42 mi46 min SSE 8.9 G 12 83°F 83°F1014.5 hPa
SBPT2 - 8770570 - Sabine Pass North, TX 44 mi46 min SE 13 G 14 83°F 85°F1015.8 hPa
TXPT2 46 mi46 min SE 13 G 15 82°F 83°F1013.6 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX26 mi2.4 hrsN 06.00 miThunderstorm Light Rain73°F73°F100%1016.6 hPa

Wind History from EFD (wind in knots)
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Last 24hrW10E4SE7SE7S8--SE4SE4CalmSE4SE3SE3SE4SE4SE3CalmCalmNE3SE3SE5S8E9N9
G25
Calm
1 day agoSE9SE11SE12S8S9S6S6S4SE5SE5SE5SE4SE4S5SE3SE3CalmCalmSE3S9S7SE7SE6SW8
2 days agoS5S5S9SE9SE7SW4N4CalmCalmE4SE3S5CalmCalmCalmCalmS3CalmS5S9S6S9S9S9

Tide / Current Tables for Round Point, Trinity Bay, Galveston Bay, Texas (sub)
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Round Point
Click for Map
Thu -- 03:46 AM CDT     1.17 feet High Tide
Thu -- 04:44 AM CDT     0.53 feet Low Tide
Thu -- 07:06 AM CDT     Sunrise
Thu -- 08:22 AM CDT     Moonrise
Thu -- 04:21 PM CDT     1.10 feet High Tide
Thu -- 04:58 PM CDT     0.57 feet Low Tide
Thu -- 07:16 PM CDT     Sunset
Thu -- 08:29 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.11.11.21.10.50.50.60.60.70.80.80.9111.11.10.60.60.60.60.70.80.8

Tide / Current Tables for Point Barrow, Trinity Bay, Texas
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Point Barrow
Click for Map
Thu -- 04:06 AM CDT     0.53 feet Low Tide
Thu -- 07:07 AM CDT     Sunrise
Thu -- 08:23 AM CDT     Moonrise
Thu -- 11:24 AM CDT     1.19 feet High Tide
Thu -- 04:16 PM CDT     0.55 feet Low Tide
Thu -- 07:16 PM CDT     Sunset
Thu -- 08:30 PM CDT     Moonset
Thu -- 11:54 PM CDT     1.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.210.80.60.50.60.60.70.911.11.21.210.80.60.50.60.60.70.911.11.2

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 (17,4,5,8)
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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.