Tuesday, January26, 2021
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Marine Weather and Tides
Danbury, TX

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:12AMSunset 5:56PM Tuesday January 26, 2021 10:19 PM CST (04:19 UTC) Moonrise 3:59PMMoonset 5:35AM 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 Coastal Waters From High Island To Freeport Tx Out 20 Nm- 851 Pm Cst Tue Jan 26 2021
.dense fog advisory in effect until 4 am cst Wednesday...
.small craft advisory in effect from 3 am cst Wednesday through Wednesday evening...
Tonight..Northeast winds 5 to 10 knots becoming north 20 to 25 knots after 3 am. Seas 2 to 4 feet. A slight chance of showers early in the evening. Areas of fog prior to the frontal passage.
Wednesday..North winds 20 to 25 knots becoming 15 to 20 knots in the afternoon. Seas 4 to 6 feet with occasional seas up to 7 feet.
Wednesday night..North winds 15 to 20 knots. Seas 2 to 4 feet.
Thursday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
Thursday night..East winds 5 to 10 knots. Seas 2 to 3 feet.
Friday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Friday night..Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Saturday..South winds around 15 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A slight chance of showers in the late morning and afternoon.
Saturday night..Southwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 7 feet. A slight chance of showers.
Sunday..Northwest winds 10 to 15 knots becoming north in the afternoon. Seas 2 to 4 feet.
Sunday night..North winds 15 to 20 knots. Seas 2 to 4 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 851 Pm Cst Tue Jan 26 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Patchy dense sea fog in the gulf waters will continue until a fairly strong cold front pushes off the coast around 3 am. Strong north winds should begin to diminish late Wednesday afternoon and evening but moderate offshore flow should prevail well into Thursday. Winds become southeasterly Friday morning and persist until the next cold front arrives late Saturday night or early Sunday morning. Some fog could redevelop before the arrival of this front.


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 270003 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 603 PM CST Tue Jan 26 2021

AVIATION [00Z TAF Issuance].

Not planning on a lot of changes with the going TAF trends with re- gard to the timing of the cold front tonight/overnight. Short range guidance still indicating a fairly dry/quiet FROPA with CIGS likely lifting quickly in its wake. Otherwise, will be keeping a close eye on possible patchy MVFR CIGS near the coast overnight. 41

PREV DISCUSSION. /ISSUED 343 PM CST Tue Jan 26 2021/

SHORT TERM [Tonight Through Wednesday Night] .

Yesterday's surface cold front remains stalled well offshore, with some lingering cloudiness still present across the barrier islands and immediate inland areas. That being said, the gradual clearing over the past 24 hours has allowed for more efficient daytime heating this afternoon, while the shift to east-northeasterly winds has limited CAA. Overall, daytime highs have risen above model consensus with Hobby Airport reaching 77 at 3PM and Galveston reaching the 75 earlier today.

As an upper trough traverses the Central Plains, the approach of a reinforcing cold front overnight will provide an additional surge of cooler air to SE TX as winds strengthen and shift northward. The boundary should arrive at the Brazos Valley before midnight and will likely clear the coast before sunrise on Wednesday. With limited moisture availability given the influx of drier air yesterday, the frontal passage should be largely a dry one. However, as indicated by recent HRRR solutions, some isolated showers may arise near the coast where near-surface moisture remains higher. This raises the additional possibility of some patchy fog development in these locations prior to the arrival of the front but coverage and intensity should be limited.

Tonight's lows should be fairly similar to last night's with most locations seeing values in the upper 40s to low 50s. As moderate to strong northerly winds (with gusts rising to up to 25mph) develop in the wake of the front, a further cooldown is expected tomorrow. Daytime highs are unlikely to rise above 70, while overnight lows may approach freezing in the northern zones and will otherwise be in the mid-30s to lower 40s.

Cady

LONG TERM [Thursday through Tuesday] .

High pressure in the Midwest will dominate the Southern Planes bringing clear to mostly clear skies and relatively drier conditions. Thursday will be pleasant with highs climbing to around 60 after lows in the low to mid 40s. The large high will start moving to the northeast on Friday into the Ontario area, giving way to an onshore flow. Warmer and more moist will set back in warming lows on Friday to the mid 40s and warming to the mid to upper 60s.

A cold front, Saturday will increase rain chances, but most higher chances remain to the north of I-10 but showers or a thunderstorm can't be ruled out along the boundary. Intensity is still looking weak with PWATs peaking around 1.3 inches and not much instability along the front. Highs will reach the mid 70s after a morning low in the mid 50s to around 60. Early Sunday Morning, the front will have passed and high pressure returns to the area. Lows will still reach around mid 50s to around 60 with highs around 70. Cooler temperatures will filter in with drier air and clearing skies through mid week as high pressure moves across the area. 35

MARINE . SCA hoisted for the anticipated change post frontal. Northeast winds this evening will relax and seas very slowly diminish. The cold front arrives and winds crank up quickly - timing should bring it to Matagorda Bay around 3 am and off of Galveston between 4 and 5 am. Winds of 15 to 25 knots will be common and wind gusts of 30 knots with even a few of 35 knots in the 6am to noon timeframe. Persistent offshore continues Wednesday afternoon through Thursday evening through diminishing to 10-15 knots. Seas will be slow to fall with the persistent offshore flow. Onshore flow resumes Friday and could have a short period of sea fog Saturday before the next cold front scours out the moisture Sunday morning. 45

PRELIMINARY POINT TEMPS/POPS. College Station (CLL) 45 63 36 60 40 / 0 0 0 0 0 Houston (IAH) 51 67 41 61 42 / 0 0 0 0 0 Galveston (GLS) 56 65 49 56 52 / 10 0 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES. TX . NONE. GM . Small Craft Advisory from 3 AM to 10 PM CST Wednesday 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 . Galveston Bay . Matagorda Bay . 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 . 99 Aviation/Marine . 99


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LUIT2 7 mi499 min ENE 13 G 16 65°F 62°F1008.7 hPa (-2.3)
FPST2 16 mi499 min NE 8.9 G 9.9 63°F 1008.3 hPa (-2.3)
GRRT2 19 mi499 min ENE 9.9 G 11 65°F 66°F1009.3 hPa (-2.0)
42043 - GA-252 TABS B 20 mi559 min ENE 7.8 60°F
GTOT2 24 mi499 min E 9.9 G 15 68°F 63°F1009.2 hPa (-2.2)
EPTT2 - 8771013 - Eagle Point, TX 27 mi499 min E 6 G 8 67°F 64°F1009.5 hPa (-2.0)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 29 mi499 min NE 8.9 G 11 63°F 62°F1008.4 hPa (-2.1)
SGNT2 35 mi499 min NE 8.9 G 13 68°F 65°F1008.9 hPa (-2.3)
MGPT2 - 8770613 - Morgans Point, TX 38 mi499 min E 8 G 8.9 74°F 61°F1009.7 hPa (-2.2)
NCHT2 - 8770777 - Manchester, TX 39 mi499 min E 5.1 G 7 74°F 65°F1009.5 hPa (-2.1)
42035 - GALVESTON 22NM East of Galveston, TX 41 mi479 min ENE 7.8 G 9.7 62°F 59°F1008.8 hPa
RLOT2 - 8770971 - Rollover Pass, TX 44 mi499 min E 14 G 17 68°F 65°F1009.7 hPa (-2.2)
EMAT2 49 mi499 min ENE 15 G 17 72°F 67°F1008.5 hPa (-2.4)

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 mi26 minENE 310.00 miOvercast66°F61°F84%1010.6 hPa
Galveston, Scholes Field, TX19 mi27 minENE 80.75 miFog/Mist64°F62°F93%1011.1 hPa

Link to 5 minute data for KLBX

Wind History from LBX (wind in knots)
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Last 24hrN6N5NE4NE4NE7NE4NE3E5NE4NE3E6E12
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Tide / Current Tables for Alligator Point, West Bay, Texas
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Alligator Point
Click for Map
Tue -- 05:34 AM CST     Moonset
Tue -- 07:12 AM CST     Sunrise
Tue -- 10:58 AM CST     -0.44 feet Low Tide
Tue -- 03:58 PM CST     Moonrise
Tue -- 05:54 PM CST     Sunset
Tue -- 07:49 PM CST     0.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.60.50.50.40.30.1-0.1-0.3-0.4-0.4-0.4-0.3-0.10.10.30.50.60.70.70.70.60.6

Tide / Current Tables for San Luis Pass, Texas
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San Luis Pass
Click for Map
Tue -- 05:34 AM CST     Moonset
Tue -- 07:11 AM CST     Sunrise
Tue -- 07:20 AM CST     -1.30 feet Low Tide
Tue -- 03:58 PM CST     Moonrise
Tue -- 04:04 PM CST     1.34 feet High Tide
Tue -- 05:54 PM CST     Sunset
Tue -- 09:35 PM CST     1.15 feet Low Tide
Tue -- 09:59 PM CST     1.15 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.80.50.1-0.4-0.8-1.1-1.3-1.3-1.1-0.7-0.30.20.71.11.31.31.31.31.21.21.21.21.1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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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.