Friday, March24, 2017 L-36.com


Marine Weather and Tides
Jamaica Beach, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:15AMSunset 7:34PM Friday March 24, 2017 8:50 PM CDT (01:50 UTC) Moonrise 4:00AMMoonset 3:19PM Illumination 7% Phase: Waning Crescent; Moon at 27 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- 431 Pm Cdt Fri Mar 24 2017
.small craft advisory in effect until 10 pm cdt this evening...
Tonight..South winds 15 to 25 knots becoming 15 to 20 knots after midnight. Seas 5 to 7 feet. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Saturday..Southwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of showers and Thunderstorms in the morning.
Saturday night..South winds 10 to 15 knots. Seas 3 to 4 feet.
Sunday..South winds 10 to 15 knots. Seas 3 to 5 feet.
Sunday night..South winds 15 to 20 knots. Seas 3 to 5 feet.
Monday..South winds 10 to 15 knots. Seas 3 to 5 feet.
Monday night..South winds 10 to 15 knots becoming southeast 5 to 10 knots after midnight. Seas 3 to 4 feet.
Tuesday..East winds 10 to 15 knots becoming southeast 15 to 20 knots in the afternoon. Seas 2 to 3 feet.
Tuesday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wednesday..Southeast winds 20 to 25 knots becoming south 15 to 25 knots in the afternoon. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall.
Wednesday night..South winds 15 to 20 knots. Seas 5 to 6 feet with occasional seas up to 7 feet. A chance of showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 431 Pm Cdt Fri Mar 24 2017
Synopsis for high island to matagorda ship channel out 60 nm.. The moderate to strong onshore winds are expected to slowly diminish this evening ahead of an approaching surface trough of low pressure. This weak front will approach the coastal waters Saturday but is forecast to stall inland. Weaker onshore winds are expected over the weekend.

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 250021
afdhgx
area forecast discussion
national weather service houston/galveston tx
721 pm cdt Fri mar 24 2017

Update
A tornado watch is in effect for the northern two thirds of the
cwa through midnight tonight. Discrete cells over the far
northwestern forecast area are displaying rotation (funnel cloud
reported in brenham) and are putting down as high as 1 to 2 inch
per hour rainfall accumulations. Cells are moving quite quickly to
the northeast at around 35 mph. High resolution modeling has
thunderstorms passing across the city from roughly 9 to 11 pm. 31

Prev discussion /issued 644 pm cdt Fri mar 24 2017/
aviation...

cluster of storms has managed to get going across western portions
of SE tx. Short term hires guidance suggests this, or a portion
of, this cluster will maintain itself for the next 4-6 hours as
it treks eastward toward the i-45 corridor. Storms between crp &
sat have been losing their luster the past several scans & will
monitor that area to see if capping wins that battle. Appears main
time period for possible impacts to the houston area airports
will be between 1-5z. May see another thin band of shra and/or iso
tsra develop along the front itself as it passes from cxo to the
coast between 10-14z.VFR conditions should prevail from mid
morning onward sat. 47

Preliminary point temps/pops
College station (cll) 58 78 58 84 66 / 50 10 10 10 20
houston (iah) 65 83 61 85 68 / 70 20 10 10 10
galveston (gls) 71 79 70 79 70 / 50 40 10 10 10

Hgx watches/warnings/advisories
Tx... Wind advisory until 8 pm cdt this evening for the following
zones: austin... Brazoria... Brazos... Burleson... Chambers...

colorado... Fort bend... Galveston... Grimes... Harris...

jackson... Liberty... Madison... Matagorda... Montgomery...

walker... Waller... Washington... Wharton.

Gm... Small craft advisory until 10 pm cdt this evening 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... Galveston bay... Matagorda
bay... 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... 31


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GRRT2 9 mi50 min S 16 G 20 73°F 75°F1014 hPa (+0.0)
LUIT2 11 mi50 min SSE 12 G 16 73°F 73°F
GTOT2 13 mi50 min 73°F 70°F
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 18 mi50 min SSE 21 G 24 77°F 71°F
EPTT2 - 8771013 - Eagle Point, TX 20 mi50 min S 22 G 29 74°F 75°F1013.6 hPa (-0.6)
FCGT2 - 8772447 - USCG Freeport, TX 24 mi50 min SSE 15 G 18 73°F 70°F1014.1 hPa (-0.3)
KXIH 25 mi35 min SSW 20 G 26 73°F 70°F
42035 - GALVESTON 22NM East of Galveston, TX 31 mi60 min SSE 19 G 23 72°F 70°F6 ft1014.1 hPa (-0.5)71°F
MGPT2 - 8770613 - Morgans Point, TX 33 mi50 min SSE 14 G 21 74°F 74°F1013.6 hPa (-0.8)
LYBT2 39 mi50 min S 18 G 28 74°F 72°F1012.5 hPa (-1.0)
NCHT2 - 8770777 - Manchester, TX 39 mi50 min S 9.9 G 23 74°F 72°F1013.3 hPa (-0.8)
HIST2 42 mi50 min SSE 12 G 17 72°F 75°F1014.4 hPa (-1.1)
SGNT2 45 mi50 min SSE 13 G 17 73°F 75°F1013.3 hPa (-0.0)

Wind History for Galveston Pleasure Pier, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX8 mi58 minSSE 169.00 miMostly Cloudy74°F71°F91%1014.2 hPa

Wind History from GLS (wind in knots)
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Last 24hrSE16SE18SE16SE16SE16SE16SE15S16S15S16S16S13S15SE13SE17SE18SE17SE21
G26
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1 day agoS7SE7S8S9S9S8S11S10S10S10SE8S9S9SE11S10S11S11SE12SE15SE15SE14SE15SE12SE14
2 days agoS9S8S9S8S8S9S9S7S7S7S5SE5SE6SE7S8S8S7S8S9S8S10SE11S9S9

Tide / Current Tables for Jamaica Beach, West Bay, Galveston Bay, Texas
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Jamaica Beach
Click for Map
Fri -- 12:39 AM CDT     0.73 feet Low Tide
Fri -- 03:29 AM CDT     0.79 feet High Tide
Fri -- 05:00 AM CDT     Moonrise
Fri -- 07:18 AM CDT     Sunrise
Fri -- 11:53 AM CDT     0.06 feet Low Tide
Fri -- 04:19 PM CDT     Moonset
Fri -- 06:36 PM CDT     0.88 feet High Tide
Fri -- 07:33 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.70.70.80.80.70.70.50.40.30.10.10.10.10.20.40.60.80.90.90.80.80.70.7

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Fri -- 12:11 AM CDT     -0.65 knots Max Ebb
Fri -- 02:03 AM CDT     -0.59 knots Min Ebb
Fri -- 04:59 AM CDT     Moonrise
Fri -- 07:17 AM CDT     Sunrise
Fri -- 07:56 AM CDT     -1.30 knots Max Ebb
Fri -- 12:15 PM CDT     0.00 knots Slack
Fri -- 03:46 PM CDT     1.41 knots Max Flood
Fri -- 04:18 PM CDT     Moonset
Fri -- 07:33 PM CDT     Sunset
Fri -- 09:23 PM CDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.6-0.6-0.6-0.7-0.9-1.1-1.3-1.3-1.2-1-0.7-0.20.511.31.41.310.70.40.1-0.2-0.4

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.