Tuesday, December10, 2019
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Marine Weather and Tides
Danbury, 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 5:25PM Tuesday December 10, 2019 10:50 AM CST (16:50 UTC) Moonrise 4:29PMMoonset 5:24AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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 Expires:201912110415;;144699 Fzus54 Khgx 101525 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 925 Am Cst Tue Dec 10 2019 Upper Texas Coastal Waters From High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Gmz350-355-110415- Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 925 Am Cst Tue Dec 10 2019
.gale warning in effect through this evening...
Today..North winds 25 to 30 knots with frequent gusts to gale force. Seas 5 to 7 feet with occasional seas up to 8 feet. Showers.
Tonight..North winds 20 to 30 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of showers early in the evening, then a slight chance of showers in the late evening and early morning.
Wednesday..Northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wednesday night..Northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Thursday..Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers late in the afternoon.
Thursday night..North winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers.
Friday..North winds 5 to 10 knots becoming southwest in the afternoon. Seas 2 to 3 feet.
Friday night..Southwest winds around 10 knots. Seas 1 to 2 feet.
Saturday..Southwest winds 5 to 10 knots. Seas 1 to 2 feet.
Saturday night..Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 925 Am Cst Tue Dec 10 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Strong north winds and elevated seas can be expected in the wake of the cold front that pushed through earlier this morning. Decreasing winds and seas can be expected to begin on Wednesday, and a more southerly wind flow should return to the area at the end of the week and over the weekend. Another cold front is expected to move across the are at the start of next week.


7 Day Forecast for Marine Location Near Danbury, TX
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location: 29.16, -95.2     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 101209 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 609 AM CST Tue Dec 10 2019

AVIATION. Expecting to see the MVFR ceilings near the coast to spread inland this morning and maybe become IFR, and also expecting to see expanding areas of mainly -SHRA/-RA (some -TSRA cannot be ruled out, but not confident enough to include in area TAFs). N winds behind the early morning cold front will be around 15 to 25 knots inland and 25 to 30 knots near the coast, with higher gusts areawide. Rains will come to an end from west to east late this afternoon through early this evening, but ceilings might take a little longer to lift and clear out with MVFR conditions possibly persisting until late tonight or early tomorrow morning. VFR tomorrow. 42

PREV DISCUSSION. /ISSUED 355 AM CST Tue Dec 10 2019/

DISCUSSION .

A very strong cold front is pushing through Southeast Texas tonight with a broken line of showers. In its wake, look for gusty north winds and temperatures to stay steady or fall through the day today. This means most locations have seen their high temperature for the day already. Additionally, expect widespread, generally light showers to fall across Southeast Texas today, gradually ending from northwest (late this afternoon) to southeast (this evening).

After today, look for generally quiet weather for the next several days with temperatures with cool temperatures slowly rising into early next week, when another cold front will bring our next chance for rain and colder conditions.

SHORT TERM [Through Wednesday] .

The cold front is moving off the coast early this morning. At 3 AM, temperatures have fallen into the lower 50s north and remain in the low to mid 70s at the coast just ahead of the front. These readings will continue to fall as the day progresses and will be accompanied with areas of rain and embedded showers (and maybe an isolated thunderstorm too). Gusty north winds are expected with breezy conditions inland and windy conditions closer to the coast (where wind advisories will be in effect). The rainy conditions will come to an end from west to east beginning later this after- noon or early this evening, and anticipate all activity to be off to our east tonight. Mostly clear skies and much lighter winds will help to set the stage for a cold night tonight with near freezing temperatures possible across parts of our far northern counties. Closer to the coast, low to mid 40s are anticipated. Wednesday will be cool and dry with mostly sunny skies.

LONG TERM [Wednesday Night Through Tuesday] .

By Wednesday evening, the potent upper trough fueling continued showers in the short term will have moved to our east, with northwest flow aloft and northeast winds at low levels providing us with something close to a Wednesday repeat on Thursday. Under a clear sky, expect overnight lows to remain cold into the morning, but should allow for slightly warmer highs.

Very weak reinforcing fronts look to slide into the area both on Thursday night and on Saturday as high pressure tries to build over the region. They should largely be ineffective, but could allow for some showers over the Gulf and possibly the immediate coastal areas Thursday night. Despite these fronts, look for the sustained warming trend to continue through the weekend with offshore or variable winds.

Early next week, another upper trough will move in from the west, and look for a line of showers and some thunderstorms to drive down from North Texas on Monday. Keep an eye on temperatures behind this front, as there's generally good guidance in an arctic airmass advecting in. For now, there's also good consensus for the coldest air to slide east of us before making it to our latitude, so the temperatures in the forecast are cold, but not very abnormally so. But, should that coldest air take a slightly different trajectory, we may have to dial those temps down.

MARINE .

Cold front is moving across Matagorda Bay at 3 AM and will continue to work its way off the coast and through the coastal waters this morning. Areas of rain with embedded heavier showers can be expected for much of the day today. North winds will significantly strengthen and become gusty behind the front. Advisory flags for the Bays and Gale Warnings for the coastal waters will be in effect today and on into this evening, and they might need to be extended into the late night through early morning hours tomorrow. As the day progresses tomorrow, the north to northeast winds and the rough seas will begin to come down, and this trend will continue on into Thursday. A more southwest to south to southeast wind direction can be expected at the end of the week and on into the weekend. Look for another cold front to move off the coast and through the waters next Monday.

CLIMATE .

Several warm records were set yesterday as heat spiked ahead of this strong cold front. Here is a summary of the records reached:

High Temperature: City of Houston (IAH) - 84 degrees (82, 2007) Hobby Airport - 84 degrees (82, 2007) City of Galveston (GLS) - 78 degrees (tied, 2007)

High Minimum Temperature: City of Galveston (GLS) - 69 degrees (68, 2007)

Additionally, the 84 degree temperature came one degree short of the monthly high temperature record for both the City of Houston and Hobby Airport. The record at both remains remains 85 degrees, which was set on December 3, 1995 at IAH and December 3, 1933 at Hobby Airport.

PRELIMINARY POINT TEMPS/POPS. College Station (CLL) 44 34 55 34 59 / 90 20 0 0 0 Houston (IAH) 51 39 57 40 59 / 100 30 0 0 0 Galveston (GLS) 60 45 55 50 59 / 100 50 10 0 0

HGX WATCHES/WARNINGS/ADVISORIES. TX . Wind Advisory until 9 PM CST this evening for the following zones: Brazoria Islands . Chambers . Coastal Brazoria . Coastal Galveston . Coastal Harris . Coastal Jackson . Coastal Matagorda . Fort Bend . Inland Brazoria . Inland Galveston . Inland Harris . Inland Jackson . Inland Matagorda . Northern Liberty . Southern Liberty . Wharton.

Wind Advisory until midnight CST tonight for the following zones: Galveston Island and Bolivar Peninsula . Matagorda Islands.

GM . Small Craft Advisory until midnight CST tonight for the following zones: Galveston Bay . Matagorda Bay.

Gale Warning from 9 AM this morning to 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 . 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.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LUIT2 7 mi51 min N 24 G 26 54°F 66°F1019.8 hPa (+3.9)
FCGT2 - 8772447 - USCG Freeport, TX 16 mi51 min N 19 G 24 54°F 66°F
FPST2 16 mi51 min N 22 G 28 54°F 68°F1018.1 hPa (+2.6)
GRRT2 19 mi51 min NE 25 G 35 56°F 65°F1018.5 hPa (+3.1)
GTOT2 24 mi51 min NNE 18 G 26 56°F 65°F1019.1 hPa (+3.4)
EPTT2 - 8771013 - Eagle Point, TX 27 mi51 min N 14 G 21 54°F 65°F1019.3 hPa (+3.6)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 29 mi51 min N 26 G 32 56°F 64°F1017.9 hPa (+3.3)
SGNT2 35 mi51 min N 17 G 25 54°F 65°F1017.7 hPa (+2.7)
KXIH 36 mi16 min N 30 57°F 54°F
MGPT2 - 8770613 - Morgans Point, TX 38 mi51 min N 15 G 20 53°F 65°F1020.7 hPa (+3.8)
NCHT2 - 8770777 - Manchester, TX 39 mi51 min NE 9.9 G 17 51°F 67°F1020.2 hPa (+3.5)
42035 - GALVESTON 22NM East of Galveston, TX 42 mi31 min NNE 25 G 33 1019.7 hPa
RLOT2 - 8770971 - Rollover Pass, TX 44 mi51 min NNE 25 G 36 56°F 61°F1018.7 hPa (+3.2)
EMAT2 49 mi51 min N 19 G 28 55°F 64°F1017.3 hPa (+2.1)

Wind History for USCG Freeport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Angleton / Lake Jackson, Brazoria County Airport, TX15 mi58 minNNE 17 G 259.00 miLight Rain53°F51°F93%1019 hPa
Galveston, Scholes Field, TX19 mi59 minN 26 G 367.00 miLight Rain and Windy58°F54°F87%1019.2 hPa

Link to 5 minute data for KLBX

Wind History from LBX (wind in knots)
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S11S5SE6E3SE4CalmCalmCalmCalmCalmCalmN14N14N15
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1 day agoS9S12S13S14S12S14S9S5S4S6S7S7S8S6S8S8S9S7S12S8S7S6S9SW11
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2 days agoNE84N7NE8NE7E6E3CalmCalmCalmCalmCalmN3CalmCalmCalmN3N3CalmCalmCalmCalmE3SE6

Tide / Current Tables for Alligator Point, West Bay, Texas
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Alligator Point
Click for Map
Tue -- 03:29 AM CST     0.74 feet High Tide
Tue -- 05:24 AM CST     Moonset
Tue -- 07:03 AM CST     Sunrise
Tue -- 11:03 AM CST     -0.11 feet Low Tide
Tue -- 04:28 PM CST     Moonrise
Tue -- 05:22 PM CST     Sunset
Tue -- 07:11 PM CST     0.85 feet High Tide
Tue -- 11:41 PM CST     0.70 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.70.70.70.70.60.40.20-0.1-0.1-0.100.20.30.50.70.80.90.80.80.70.7

Tide / Current Tables for San Luis Pass, Texas
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San Luis Pass
Click for Map
Tue -- 05:23 AM CST     Moonset
Tue -- 07:03 AM CST     Sunrise
Tue -- 07:24 AM CST     -0.52 feet Low Tide
Tue -- 03:25 PM CST     1.75 feet High Tide
Tue -- 04:28 PM CST     Moonrise
Tue -- 05:23 PM CST     Sunset
Tue -- 08:02 PM CST     1.39 feet Low Tide
Tue -- 11:52 PM CST     1.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.41.20.80.4-0-0.3-0.5-0.5-0.300.40.91.31.61.71.71.61.51.41.41.41.51.5

Weather Map
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wmap_A
GEOS Local Image of    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.
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Wind Forecast for Houston/Galveston, TX (11,2,3,4)
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Ground Weather Radar Station Houston/Galveston, TX
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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.