Thursday, December12, 2019
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Marine Weather and Tides
Bolivar Peninsula, TX

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:02AMSunset 5:23PM Thursday December 12, 2019 2:29 AM CST (08:29 UTC) Moonrise 6:00PMMoonset 7:23AM Illumination 100% Phase: Full Moon; Moon at 15 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 Galveston Bay- 1207 Am Cst Thu Dec 12 2019
Rest of tonight..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Friday..North winds around 5 knots becoming southwest in the afternoon. Bay waters smooth.
Friday night..Southwest winds 5 to 10 knots becoming west after midnight. Bay waters smooth.
Saturday..North winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth.
Saturday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers late in the afternoon.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers early in the evening, then a chance of showers in the late evening and overnight. A slight chance of Thunderstorms late.
Monday..Southwest winds 10 to 15 knots becoming northwest in the afternoon. Bay waters slightly choppy. Showers and a chance of Thunderstorms.
Monday night..North winds 15 to 20 knots. Bay waters choppy. A slight chance of Thunderstorms in the evening. A slight chance of showers.
Tuesday..North winds 15 to 20 knots. Bay waters choppy.
Tuesday night..North winds 10 to 15 knots. Bay waters slightly choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1207 Am Cst Thu Dec 12 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Winds and seas will continue to subside overnight. With high pressure situated over the eastern seaboard and lower pressure in the yucatan and west central gulf, northeast to east winds will prevail through Thursday night. Onshore winds return to the area over the weekend. Another strong cold front is expected to move through the area on Monday.


7 Day Forecast for Marine Location Near Bolivar Peninsula CDP, TX
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location: 29.49, -94.56     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 120531 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1131 PM CST Wed Dec 11 2019

DISCUSSION.

Updated for the 06Z TAF issuance and marine forecast.

AVIATION.

VFR conditions will prevail tonight as high pressure dominates the local weather. MVFR ceilings may occur overnight, lifting back to VFR in the morning. Calm to light NE to E winds expected overnight, except at KGLS where winds will remain around 10 KTS. Thursday, winds will shift southerly as high pressure moves eastward in response to a shortwave moving across the Rockies and into the Central Plains. Low level moisture from the Gulf will keep cloud development throughout the day but is expected to stay dry inland. Some rain showers are possible over the Gulf waters. 24

Marine.

Current Bouy data reports NE to E winds at 15 to 20 KTS with higher gusts on occasion and seas of 6 to 7 feet. Winds and seas will continue to subside overnight, therefore, SCA will be allowed to expire at midnight CST tonight. Mariners should continue to exercise caution overnight and allow for the seas and winds to decrease below SCEC criteria. 24

PRELIMINARY POINT TEMPS/POPS. College Station (CLL) 60 38 60 44 70 / 0 0 0 10 0 Houston (IAH) 61 40 61 48 70 / 0 0 0 10 10 Galveston (GLS) 58 50 59 56 67 / 0 0 10 10 10

HGX WATCHES/WARNINGS/ADVISORIES. TX . NONE. GM . SMALL CRAFT SHOULD EXERCISE CAUTION until midnight CST tonight for the following zones: Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM . Coastal waters from High Island to Freeport TX out 20 NM.

Small Craft Advisory until midnight CST tonight for the following zones: Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM . Waters from High Island to Freeport TX from 20 to 60 NM.



Discussion . 24 Aviation/Marine . 24


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RLOT2 - 8770971 - Rollover Pass, TX 3 mi60 min NE 11 G 13 47°F 56°F1028.1 hPa
HIST2 12 mi66 min NNE 5.1 G 6 41°F 60°F1027.9 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 13 mi66 min NE 15 G 18 51°F 58°F1026.7 hPa
GTOT2 17 mi60 min NE 8 G 11
42035 - GALVESTON 22NM East of Galveston, TX 19 mi40 min ENE 14 G 21 5 ft1028.1 hPa
EPTT2 - 8771013 - Eagle Point, TX 19 mi60 min ENE 13 G 15
GRRT2 22 mi60 min E 8.9 G 18
KXIH 22 mi35 min E 16 57°F 45°F
MGPT2 - 8770613 - Morgans Point, TX 26 mi60 min NNE 6 G 7
SRST2 - Sabine Pass, TX 31 mi30 min ENE 6 G 6 44°F 1028.1 hPa (-1.3)40°F
SBPT2 - 8770570 - Sabine Pass North, TX 40 mi60 min NNE 8.9 G 11
TXPT2 40 mi60 min NNE 5.1 G 7 42°F 60°F1027 hPa
LUIT2 41 mi60 min NE 13 G 16 53°F 61°F1028.8 hPa
NCHT2 - 8770777 - Manchester, TX 41 mi60 min N 4.1 G 5.1
PORT2 - 8770475 - Port Arthur, TX 42 mi60 min NNE 5.1 G 8 45°F 60°F1027.9 hPa

Wind History for Rollover Pass, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
High Island 179A (Apache Corp), LA22 mi55 minE 1710.00 miOvercast57°F42°F59%1027.1 hPa
Galveston, Scholes Field, TX22 mi38 minNNE 1210.00 miOvercast52°F42°F69%1027.9 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
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Last 24hrN20
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N15N14N14NE13NE11NE11NE12NE12NE13NE11NE11NE12N12NE12
1 day agoS10S4N20
G30
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2 days agoS11S10S11S13S8S7S8S10S11S11--S8S9SE8SE7SE5SE7SE7SE9SE9SE7SE6SE10SE11

Tide / Current Tables for Rollover Pass, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Galveston Bay Entrance, Texas Current
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Galveston Bay Entrance
Click for Map
Thu -- 07:03 AM CST     Sunrise
Thu -- 07:22 AM CST     Moonset
Thu -- 08:45 AM CST     -3.18 knots Max Ebb
Thu -- 01:15 PM CST     0.00 knots Slack
Thu -- 04:51 PM CST     2.68 knots Max Flood
Thu -- 05:21 PM CST     Sunset
Thu -- 06:00 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.2-0.3-0.4-0.7-1.4-2.2-2.8-3.1-3.2-2.9-2.2-1.3-0.30.81.82.52.72.421.510.60.3

Weather Map
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wmap_A
GEOS Local Image of SouthCentralPlains    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (3,6,7,8)
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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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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.