Monday, April6, 2020
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Marine Weather and Tides
Quintana, TX

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 7:03AMSunset 7:44PM Monday April 6, 2020 12:31 AM CDT (05:31 UTC) Moonrise 5:23PMMoonset 5:21AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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:202004061630;;640180 Fzus54 Khgx 060401 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 1101 Pm Cdt Sun Apr 5 2020 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. Gmz350-355-061630- Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 1101 Pm Cdt Sun Apr 5 2020
Rest of tonight..East winds 10 to 15 knots. Seas 2 to 4 feet. A slight chance of showers and isolated Thunderstorms late.
Monday..East winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and isolated Thunderstorms until late afternoon. A slight chance of sprinkles late in the afternoon.
Monday night..Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Tuesday..South winds 5 to 10 knots. Seas 1 to 2 feet.
Tuesday night..South winds 5 to 10 knots. Seas 1 to 2 feet.
Wednesday..South winds 5 to 10 knots. Seas 1 to 2 feet.
Wednesday night..South winds 5 to 10 knots. Seas 1 to 2 feet.
Thursday..South winds 5 to 10 knots becoming southeast in the afternoon. Seas 1 to 2 feet. A slight chance of showers in the morning. Isolated Thunderstorms. A chance of showers in the afternoon.
Thursday night..East winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet. A chance of showers and isolated Thunderstorms.
Friday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers and isolated Thunderstorms.
Friday night..East winds 10 to 15 knots. Seas 2 to 4 feet. Isolated Thunderstorms in the evening. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1101 Pm Cdt Sun Apr 5 2020
Synopsis for high island to matagorda ship channel out 60 nm.. Winds will weaken through early Monday as they veer back onshore behind an inland moving warm front. Very low early morning rain chances for very light showers. Onshore winds will generally remain light through mid week with the next front forecast to arrive sometime Thursday.


7 Day Forecast for Marine Location Near Quintana, TX
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location: 28.95, -95.31     debug


Area Discussion for - Houston/Galveston, TX
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FXUS64 KHGX 060435 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 1135 PM CDT Sun Apr 5 2020

AVIATION (06Z). Current VFR ceilings (high overcast) are expected to transition/ develop into areawide MVFR categories through the pre-dawn through mid Monday morning hours. A vicinity coastal warm front will keep VCSH around early on the day . the boundary's slow inland movement with afternoon warming will introduce VCSH for very light PM drizzle/showers for more interior terminals. While there will be occasional cloud breaks to VFR through the day, forecast calls for a late day lowering of ceilings back to MVFR and possible IFR by tomorrow evening over more southern hubs. 31

PREV DISCUSSION. /ISSUED 709 PM CDT Sun Apr 5 2020/

AVIATION (00Z) . Areawide VFR ceilings with periods of overnight/early Monday morning MVFR. Drier air working its way in from the east has kept the lower layers dry enough to preclude Sunday rain and lower decks, primarily VFR categories. This will be the trend through the early morning hours but, as winds begin to veer to the southeast, lower level moisture will increase through tomorrow afternoon. Anticipating a near or shortly after sunrise lowering of ceilings back down to MVFR and to remain at these levels through the entire day. A warm front moving onshore will assist in maintaining these lower ceilings and place in the mention of afternoon VCSH along and ahead of this inland moving boundary. 31

PREV DISCUSSION . /ISSUED 346 PM CDT Sun Apr 5 2020/

SHORT TERM [Tonight through Monday] .

Skies have been partly to mostly cloudy this afternoon with temperatures so far in a upper 60s to mid 70s range. Most of the inland areas will see lows in the low to mid 60s tonight while locations at the coast will struggle to fall below 70. Mostly cloudy to cloudy skies will be the general rule overnight, and some patchy fog could develop too. Not a whole lot of changes have been made to the Monday forecast as temperatures warm up into the upper 70s to lower 80s with most locations remaining dry (daytime heating could help to generate some morning showers and isolated thunderstorms in the afternoon, but as of now think 20% chances is all we need in the forecast). 42

LONG TERM [Monday Night Through Sunday] .

A return to unseasonably warm temperatures is in store during the coming week as a persistent upper ridge looks to build over the south central CONUS while an upper trough digs slowly to the south along the Pacific coast. As onshore winds redevelop behind an advancing surface warm front tomorrow, low-level moisture should increase once again across SE Texas. Global guidance indicates a return of PWAT into the 1.75 to 2.0 in range by Monday night, which would place values near or within the upper decile of previous observations for early April. Despite this, a messy precipitation forecast continues to be the story through mid-week. Have maintained greatest PoPs across the northern portion of the CWA with diurnal heading and the progression of any disturbances embedded within the prevailing ridge looking to be the main driver of scattered showers and isolated thunderstorms.

Look for a rising trend in temperatures through mid-week as the upper ridge continues to build, with highs on Wednesday potentially flirting with 90 degrees across the metro area (around 10-15 degrees higher than the climatological normal). Increasing precipitation chances come on Thursday afternoon and into as a surface cold front approaches the area, although timing differences with the passage of the associated surface low are still apparent across global guidance sources. Behind the departing cold front, lingering showers and a return to more seasonable temperatures appear to be in store for next weekend.

Cady

MARINE .

Seas have remained elevated and near advisory levels offshore today. Still anticipate a gradual fall, but have extended the caution flags near the coast and the advisory flags offshore into this evening if the decrease continues to take its time. East to southeast winds Monday and Monday night will turn to the south on Tuesday and then persist until a Thursday night-Friday period when the next cold front will be moving into the coastal waters. This is not expected to be a strong front with only slightly elevated northeast to east winds and building seas. At this time, it is looking like only caution flags might be needed for the offshore waters. 42

PRELIMINARY POINT TEMPS/POPS. College Station (CLL) 60 80 68 85 70 / 10 20 10 20 10 Houston (IAH) 63 80 69 86 71 / 10 20 10 20 0 Galveston (GLS) 70 77 72 79 74 / 10 20 10 10 10

HGX WATCHES/WARNINGS/ADVISORIES. TX . NONE. GM . SMALL CRAFT SHOULD EXERCISE CAUTION until 4 AM CDT Monday 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.



Aviation . 31


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FCGT2 - 8772447 - USCG Freeport, TX 1 mi44 min E 8.9 G 12 71°F 70°F1016.2 hPa
FPST2 1 mi44 min E 14 G 16 71°F 72°F1015.4 hPa
LUIT2 13 mi44 min ESE 12 G 15 71°F 71°F1017 hPa
SGNT2 20 mi44 min E 9.9 G 13 71°F 69°F1015.1 hPa
GRRT2 33 mi44 min SE 7 G 8.9 70°F 72°F1015.3 hPa
EMAT2 36 mi44 min ENE 8.9 G 11 69°F 69°F1015.2 hPa
GTOT2 37 mi44 min 72°F
EPTT2 - 8771013 - Eagle Point, TX 42 mi44 min ESE 9.9 G 11 71°F 71°F1015.2 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 42 mi50 min ESE 11 G 13 72°F 72°F1015.1 hPa

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, TX14 mi39 minN 09.00 miFair65°F62°F90%1016.1 hPa

Link to 5 minute data for KLBX

Wind History from LBX (wind in knots)
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Last 24hrN8N7N11N8N6NW4N6N7N7N8N9NE12NE14
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E8E7E4E3CalmCalmCalm
1 day agoNE5E3SE9NE5E3CalmNW9NW9N11N11N11N11N12N10N10N14N9N12N12NE9N9E7
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2 days agoE5E6SE7E6E4E4E4E6SE9E6E9
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Tide / Current Tables for Freeport Harbor, Texas
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Freeport Harbor
Click for Map
Mon -- 02:08 AM CDT     1.52 feet High Tide
Mon -- 06:19 AM CDT     Moonset
Mon -- 07:04 AM CDT     Sunrise
Mon -- 08:42 AM CDT     -0.11 feet Low Tide
Mon -- 03:31 PM CDT     1.39 feet High Tide
Mon -- 06:23 PM CDT     Moonrise
Mon -- 07:42 PM CDT     Sunset
Mon -- 08:51 PM CDT     0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.41.51.51.20.90.50.1-0.1-0.100.30.60.91.21.41.41.20.90.70.50.40.50.7

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


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 (1,6,7,8)
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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 numerous 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.