Thursday, December12, 2019
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Marine Weather and Tides
Texas City, 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 7:03AMSunset 5:23PM Thursday December 12, 2019 4:34 AM CST (10:34 UTC) Moonrise 6:01PMMoonset 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- 253 Am Cst Thu Dec 12 2019
Today..Northeast winds around 10 knots. Bay waters smooth to slightly choppy.
Tonight..Northeast winds 5 to 10 knots. Bay waters smooth.
Friday..Northeast winds around 5 knots becoming south in the afternoon. Bay waters smooth.
Friday night..Southwest winds around 10 knots becoming northwest after midnight. Bay waters smooth to slightly choppy becoming smooth after midnight.
Saturday..North winds 5 to 10 knots becoming east 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 chance of showers late in the afternoon.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers. A chance of Thunderstorms in the late evening and overnight.
Monday..West winds 15 to 20 knots becoming northwest in the afternoon. Bay waters choppy. Thunderstorms in the morning. Showers. A chance of Thunderstorms in the afternoon.
Monday night..North winds 15 to 20 knots. Bay waters choppy. A slight chance of showers in the evening.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 253 Am Cst Thu Dec 12 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Winds and seas gradually subside today. 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 on Saturday night and Sunday. Another strong cold front is expected to move through the area on Monday.


7 Day Forecast for Marine Location Near Texas City, TX
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location: 29.47, -94.77     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 120936 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 336 AM CST Thu Dec 12 2019

DISCUSSION.

A weekend of mostly quiet weather remains ahead - we'll begin with temperatures a little below normal, with gradual warming through Sunday despite a very weak cold front on Saturday. A stronger cold front is expected on Monday, which will bring our next chance for showers and storms, along with colder conditions next week.

SHORT TERM [Through Friday].

Quiet weather can be expected through Friday. Clouds are increasing from south to north across the area early this morning, and expect this trend to continue throughout the day. After a cold start to the morning, look for temperatures to warm up into to 60s for much of the area. Tonight and tomorrow look similar to today with slightly warmer temperatures (both lows and highs).

LONG TERM [Friday Night Through Thursday].

Friday night will feature a very weak cold front moving through as a new surface high settles over Southeast Texas on Saturday. How will you know the front passed? Well, you probably won't. Rain chances are virtually nil, and temperatures Saturday are expected to be near or even a teensy bit warmer than Friday. About the only indicator will be the shift of winds from southwesterly on Friday to northwesterly by Saturday morning, becoming southeasterly by Saturday night as the high drifts east of us.

As onshore flow returns, we'll begin to start the process of moisture return ahead of the next front. After a pause in the warmup on Saturday, temperatures should be decidedly (10 or more degrees) above normal on Sunday.

The upper trough supporting the next front will be dropping off the Rockies Sunday night. Beyond the consistency in the broad scale pattern though, there is an enormous spread of the low pressure feature at lower levels and the surface. The Euro speeds troughing from 700 mb down way out to around St. Louis, forming up the surface low far to our east, and giving us a glancing blow as the front rolls through. The GFS is much slower, forming up a surface low over North Texas And. while it doesn't really strengthen much until it's past us, gives us a bit more of a traditional frontal passage.

With such a wide spread in the guidance, it's probably no surprise that the forecast largely resembles a blend of the guidance, tweaked a bit for known weaknesses of this blending around sharp discontinuities like fronts. This starts the front moving in from the northwest into spots like B/CS, Madisonville, and Crockett before dawn on Monday, passing through Houston mid-to-late- morning, and shoving across the Gulf waters through the afternoon. This peaks rain chances for most of the area on Monday morning. If so, while there would surely be potential for thunderstorms, it would focus any severe threat to our east.

Just . don't get tied to this timing. With such important details needed to be ironed out, things can certainly still shift by several hours. This could have important implications on sensible weather with the frontal passage So. we're very confident in a front passing early next week, bringing rain and some thunderstorms Beyond that. things are still more up in the air. Odds probably favor a scenario with light to moderate rain showers and some isolated thunderstorms, but confidence here is much lower than the general idea.

AVIATION [06Z TAF Issuance].

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.

MARINE.

Seas have remained elevated early this morning, and have gone ahead and issued a Small Craft Advisory for the offshore waters and Caution Flags for the nearshore waters. Still anticipating gradual improvement to begin this morning. Otherwise, a NE/E flow will persist into early Friday as a trof/surface low moves to the north then eventually northeast. Winds will gradually back to more of a westerly direction as this feature makes its way toward the northeastern Gulf coast. There remains some uncertainty in regards to wind directions on Saturday, but an onshore flow should become more prevalent Sunday and Sunday night ahead of the next stronger cold front on Monday. A Small Craft Advisory will likely be needed in the wake of that front.

PRELIMINARY POINT TEMPS/POPS.

College Station (CLL) 61 45 71 43 70 / 0 0 0 0 0 Houston (IAH) 62 48 70 47 70 / 0 0 10 0 0 Galveston (GLS) 62 56 67 55 68 / 0 0 10 0 0

HGX WATCHES/WARNINGS/ADVISORIES.

TX . None. GM . SMALL CRAFT SHOULD EXERCISE CAUTION until 4 AM CST early this morning 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 . 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 . Luchs SHORT TERM . 42 LONG TERM . Luchs AVIATION . 24 MARINE . 42


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 8 mi52 min NE 13 G 15 50°F 57°F1026.6 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 8 mi52 min NE 16 G 18 49°F 57°F1025.6 hPa
GTOT2 11 mi52 min ENE 5.1 G 12 49°F 63°F1026.6 hPa
GRRT2 13 mi52 min NE 17 G 18 51°F 58°F1026.2 hPa
RLOT2 - 8770971 - Rollover Pass, TX 14 mi46 min NNE 11 G 12 43°F 56°F1027.3 hPa
MGPT2 - 8770613 - Morgans Point, TX 19 mi52 min ENE 8.9 G 11 46°F 63°F1027.5 hPa
HIST2 22 mi52 min N 5.1 G 7 40°F 60°F1026.9 hPa
KXIH 24 mi19 min ENE 14 57°F 45°F
42035 - GALVESTON 22NM East of Galveston, TX 25 mi34 min ENE 12 G 16 1027 hPa (-1.4)
NCHT2 - 8770777 - Manchester, TX 32 mi52 min NE 6 G 8 45°F 65°F1027 hPa
LUIT2 33 mi46 min NE 16 G 19 52°F 60°F1027.4 hPa
SRST2 - Sabine Pass, TX 42 mi34 min NE 6 G 7 42°F 1027.3 hPa (-1.2)39°F
FCGT2 - 8772447 - USCG Freeport, TX 46 mi46 min N 8 G 11 50°F 61°F
FPST2 46 mi52 min N 12 G 14 51°F 62°F1026 hPa

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX15 mi42 minNNE 1010.00 miPartly Cloudy50°F42°F74%1026.7 hPa
Houston / Ellington, TX24 mi44 minNE 510.00 miOvercast45°F37°F76%1027.1 hPa
High Island 179A (Apache Corp), LA24 mi39 minENE 1410.00 miA Few Clouds57°F44°F63%1025.7 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
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N15N14N14NE13NE11NE11NE12NE12NE13NE11NE11NE12N12NE12NE12NE10
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2 days agoS11S13S8S7S8S10S11S11--S8S9SE8SE7SE5SE7SE7SE9SE9SE7SE6SE10SE11S10S4

Tide / Current Tables for Port Bolivar, Galveston Bay, 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 Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 07:03 AM CST     Sunrise
Thu -- 07:23 AM CST     Moonset
Thu -- 08:29 AM CST     -2.21 knots Max Ebb
Thu -- 01:12 PM CST     0.00 knots Slack
Thu -- 04:46 PM CST     2.41 knots Max Flood
Thu -- 05:21 PM CST     Sunset
Thu -- 06:01 PM CST     Moonrise
Thu -- 11:42 PM CST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.5-0.5-0.6-0.8-1.2-1.6-2-2.2-2.2-2-1.6-1-0.20.81.72.32.42.11.71.20.70.40.2

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 (5,6,7,8)
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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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