Monday, May29, 2017 L-36.com


Marine Weather and Tides
Jamaica Beach, TX

Version 3.4
What's New / NOTES
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 6:19AMSunset 8:14PM Monday May 29, 2017 1:55 PM CDT (18:55 UTC) Moonrise 9:25AMMoonset 11:13PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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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GMZ355 Coastal Waters From Freeport To The Matagorda Ship Channel Out 20 Nm-coastal Waters From High Island To Freeport Out 20 Nm- 1258 Pm Cdt Mon May 29 2017
Rest of today..Southeast winds 10 to 15 knots becoming east in the afternoon. Seas 4 to 5 feet with occasional seas up to 6 feet. A chance of showers and Thunderstorms.
Tonight..East winds 10 to 15 knots. Seas 3 to 5 feet. A chance of showers and Thunderstorms.
Tuesday..Southeast winds around 10 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely in the morning, then a chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Wednesday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers and Thunderstorms.
Thursday..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
Thursday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
Friday..Southeast winds 10 to 15 knots. Seas 4 feet. A chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Seas 3 to 4 feet. 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 1258 Pm Cdt Mon May 29 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Areas of showers and Thunderstorms will diminish this afternoon. Onshore winds will diminish...although gusty winds will be possible in any Thunderstorms that do occur. Persistent moderate southeasterly winds are expected from Tuesday through Saturday along with periods of showers and Thunderstorms. An area of disturbed weather may develop near the lower texas coast Saturday and track into the region early next week.

7 Day Forecast for Marine Location Near Jamaica Beach, TX
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location: 29.2, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 291742
afdhgx
area forecast discussion
national weather service houston galveston tx
1242 pm cdt Mon may 29 2017

Aviation
Isolated areas of MVFR are possible early and then lift toVFR.

Airmass worked over from storms last night and from subsident zone
north of the activity over the gulf. Texas tech 3km WRF shows the
potential for redevelopment after 20-21z with best chances for
thunderstorms from kcxo to the coast. Texas tech 3km WRF and the
nam end this activity around 03z or shortly thereafter. Guidance
and gfs20 show potential for a return to MVFR starting around 09z
to 11z.

40

Prev discussion issued 1129 am cdt Mon may 29 2017
discussion...

precip off the coast has been contracting and dissipating as the mcv
weakens. Gradient is loosening and we can probably cancel the
coastal flood advisory and gale warnings early if this trend
persists.

For the update, we brought grids up to date with latest
obs satellite radar trends. Think we'll mostly see a break in the
action for a while as atmos recovers. But suspect with daytime
heating and residual boundaries we can probably get some sct
showers and tstms to redevelop across inland areas later this
afternoon. Think broadbrushed 30-50% pops look good. 47

Preliminary point temps pops
College station (cll) 80 69 84 69 85 40 30 40 20 50
houston (iah) 80 70 84 71 85 50 30 60 30 50
galveston (gls) 80 74 81 76 83 40 50 60 30 50

Hgx watches warnings advisories
Tx... Wind advisory until 4 pm cdt this afternoon for the following
zones: brazoria... Chambers... Galveston... Matagorda.

Coastal flood advisory until 4 pm cdt this afternoon for the
following zones: brazoria... Chambers... Galveston...

matagorda.

Gm... Small craft advisory until 1 pm cdt this afternoon for the
following zones: matagorda bay.

Small craft should exercise caution until 1 pm cdt this
afternoon for the following zones: galveston bay.

Gale warning until 1 pm cdt this afternoon 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.

Discussion... 47
aviation marine... 40


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GRRT2 9 mi38 min W 4.1 G 7 77°F 80°F1015.9 hPa
LUIT2 11 mi38 min NNW 4.1 G 5.1 76°F
GTOT2 13 mi38 min 77°F 80°F
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 18 mi44 min NW 7 G 9.9 80°F1015.6 hPa
EPTT2 - 8771013 - Eagle Point, TX 20 mi38 min N 6 G 8 77°F 80°F1015.6 hPa
FCGT2 - 8772447 - USCG Freeport, TX 24 mi38 min WNW 2.9 G 5.1 77°F 80°F1016.1 hPa
KXIH 25 mi41 min NNW 7 79°F 68°F
42035 - GALVESTON 22NM East of Galveston, TX 31 mi66 min WNW 9.7 G 12 77°F 79°F5 ft1015.9 hPa (+0.5)71°F
MGPT2 - 8770613 - Morgans Point, TX 33 mi38 min N 5.1 G 8 77°F 81°F1016 hPa
RLOT2 - 8770971 - Rollover Pass, TX 33 mi38 min NNE 9.9 G 12 76°F 79°F1016.1 hPa
NCHT2 - 8770777 - Manchester, TX 39 mi38 min NW 7 G 8.9 77°F 80°F1016 hPa
LYBT2 39 mi38 min NNW 7 G 9.9 76°F 81°F1015.2 hPa
HIST2 42 mi38 min NNE 7 G 8.9 75°F 80°F1016.5 hPa
SGNT2 45 mi38 min NE 2.9 G 5.1 77°F 81°F1014.8 hPa

Wind History for Galveston Pleasure Pier, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX8 mi64 minNW 810.00 miMostly Cloudy79°F71°F77%1015.9 hPa

Wind History from GLS (wind in knots)
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Last 24hrSE14SE15SE15SE16SE14SE14S14SE6E6E5E7N23
G35
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SE19
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SW12W5NW8
1 day agoS15S14S13S14S11SE10SE13SE13SE12S13S13S14S17
G22
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G19
S11S11S8S9S6E8SE12SE13
2 days agoS13S13SE14SE14SE14S13S14S14SE13SE15S15S14S15S16S12S17S17S13S15S14S12S15S14S15

Tide / Current Tables for Jamaica Beach, West Bay, Galveston Bay, Texas
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Jamaica Beach
Click for Map
Mon -- 04:40 AM CDT     -0.26 feet Low Tide
Mon -- 06:21 AM CDT     Sunrise
Mon -- 10:25 AM CDT     Moonrise
Mon -- 12:12 PM CDT     1.18 feet High Tide
Mon -- 08:13 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.30-0.1-0.2-0.3-0.10.10.30.60.91.11.21.21.1110.90.90.90.90.90.90.8

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Mon -- 12:30 AM CDT     -2.22 knots Max Ebb
Mon -- 05:11 AM CDT     0.00 knots Slack
Mon -- 06:20 AM CDT     Sunrise
Mon -- 08:42 AM CDT     2.16 knots Max Flood
Mon -- 10:24 AM CDT     Moonrise
Mon -- 03:49 PM CDT     -0.00 knots Slack
Mon -- 08:12 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.2-2.2-2-1.7-1-0.20.81.62.12.221.61.310.60.3-0.1-0.3-0.5-0.5-0.7-0.9-1.2-1.5

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 (14,3,4,5)
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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.