Tuesday, October24, 2017 L-36.com


Marine Weather and Tides
Quintana, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:28AMSunset 6:43PM Tuesday October 24, 2017 6:09 AM CDT (11:09 UTC) Moonrise 10:37AMMoonset 9:27PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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 Freeport To The Matagorda Ship Channel Out 20 Nm-coastal Waters From High Island To Freeport Out 20 Nm- 413 Am Cdt Tue Oct 24 2017
.small craft advisory in effect through late tonight...
Today..North winds 20 to 25 knots becoming 15 to 25 knots in the afternoon. Seas 3 to 5 feet.
Tonight..North winds 20 to 25 knots becoming 15 to 25 knots after midnight. Seas 3 to 5 feet.
Wednesday..North winds 15 to 20 knots becoming northwest 10 to 15 knots in the afternoon. Seas 2 to 3 feet.
Wednesday night..West winds 5 to 10 knots becoming southwest after midnight. Seas 1 to 2 feet.
Thursday..South winds 10 to 15 knots. Seas 2 to 3 feet.
Thursday night..South winds 15 to 20 knots. Seas 2 to 4 feet.
Friday..Southwest winds 10 to 15 knots becoming northwest 20 to 25 knots in the afternoon. Seas 2 to 4 feet. A chance of showers.
Friday night..North winds 20 to 30 knots becoming 20 to 25 knots after midnight. Seas 4 to 6 feet with occasional seas up to 7 feet. A chance of showers.
Saturday..North winds 20 to 25 knots decreasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet.
Saturday 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 413 Am Cdt Tue Oct 24 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Strong offshore winds will develop behind a colf front pushing off the gulf coast this morning and persist into tonight. Winds will diminish on Wednesday and then become onshore by late Thursday as high pressure moves east of the area. Another cold front should arrive at the end of the week on Friday. Strong northerly winds behind the front will likely prompt small craft advisories.

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 240811
afdhgx
area forecast discussion
national weather service houston galveston tx
311 am cdt Tue oct 24 2017

Discussion
The autumn weather pattern will continue for the next several days
across southeast texas. Main issues include a cold front moving
across the area today and another cold front on Friday. Both
fronts will bring unseasonably cool weather conditions across all
of the forecast area.

Items of concern regarding today's cold front include breezy and
dry conditions following the frontal passage. These will elevate
fire weather conditions across the area (see the fire weather
section below for more details). Temperatures following the front
will fall into the 40s and 50s tonight and early Tuesday morning.

After another cool, dry, but not as breezy day on Wednesday,
onshore winds will begin to return gulf moisture on Thursday. The
second cold front will arrive Friday. There has been some
differences in model precipitation output. Current thinking is
that isentropic lift ahead of the front should aid in the
development of isolated to scattered showers with best chances
along the front and over the southeastern half of the forecast
area. The main impact from the front will be after the frontal
passage over the weekend. Early morning low temperatures will
likely fall into the mid and upper 30s over the far inland areas
Saturday and Sunday morning with the coldest morning likely Sunday
morning. As of now, lowest temperatures could be near 34 or 35
degrees over locations north of a line from burleson to huntsville
to cleveland. Could see some upper 30s as far south as liberty
county, northern harris county, and locations southwest of metro
houston along the inland portions of the coastal counties.

As the high pressure area moves northeast of the forecast area, a
warming trend is expected starting on Monday. This should be aided
by southwesterly winds at the surface Sunday night and onshore
winds by late Monday.

40

Marine
Winds should increase towards sunrise this morning as a cold front
pushes through the area. Winds are expected to reach advisory levels
over the gulf this morning. The advisory begins a few hours before
the threshold is forecast to be met to cover the period of scec-
level wind. The advisory carries through Wednesday morning - the 0-
20 nm zones may see a bit of a lull in the afternoon, but with the
expectation that winds will exceed the advisory threshold again
tonight. The advisory may need to be extended through Wednesday
morning.

Look for winds to diminish Wednesday as another high pressure center
moves across the region. As that high moves off to the east, onshore
flow should return on Thursday. The next front is expected to arrive
Friday, and looks strong enough to bring another period of strong,
gusty winds. This front may be stronger than the previous front with
the potential for wind gusts to gale force. Small craft advisories
may be needed Friday through Saturday.

Overpeck

Fire weather
A front will continue to push through the area this morning and
drier air behind it will re-enforce the already drier cooler airmass
in place. Rh levels should drop to around 20 to 25 percent this
afternoon. The area is fortunate to have generally wetter than
normal fuels due to recent rain. Outside of the 10 hour fuels, which
are more receptive to changes in rh, rain from Sunday morning will
help mitigate conditions. Due to the higher fuel moisture, we will
decide against going with a red flag warning. However, those with
more grassy fuels should be aware of the dry air and winds expected,
and understand that fire may spread more rapidly than they might
expect given the recent rain. Should rh drop lower than forecast or
winds become stronger, we will need to issue a red flag warning
today.

Low humidity will persist Wednesday and Thursday. Winds will be
lower on Wednesday as high pressure moves over across SE texas.

Winds increase Thursday ahead of the front and enough moisture will
return for some rain chances ahead of the next front on Friday.

Overpeck

Preliminary point temps pops
College station (cll) 77 43 76 48 79 0 0 0 0 0
houston (iah) 77 46 76 51 80 0 0 0 0 0
galveston (gls) 77 56 73 63 80 0 0 0 0 0

Hgx watches warnings advisories
Tx... None.

Gm... Small craft advisory until 4 pm cdt this afternoon for the
following zones: galveston bay... Matagorda bay.

Small craft advisory until 3 am cdt Wednesday for the following
zones: coastal waters from freeport to the matagorda ship
channel out 20 nm... Coastal waters from high island to
freeport out 20 nm... Waters from freeport to the matagorda
ship channel from 20 to 60 nm... Waters from high island to
freeport from 20 to 60 nm.

Discussion... 40
aviation marine... 39


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FCGT2 - 8772447 - USCG Freeport, TX 1 mi51 min NW 5.1 G 8.9 63°F 76°F1022 hPa
LUIT2 13 mi51 min NW 12 G 15 65°F 1021.2 hPa
SGNT2 20 mi51 min NNW 8.9 G 13 58°F 75°F1021.5 hPa
GRRT2 33 mi51 min 63°F 73°F1021.4 hPa
EMAT2 36 mi51 min NW 12 G 17 60°F 73°F1021.4 hPa
GTOT2 37 mi51 min 66°F 77°F
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 42 mi57 min NNW 12 G 15 75°F1020.5 hPa
EPTT2 - 8771013 - Eagle Point, TX 42 mi51 min NNE 13 G 19 68°F 73°F1021.7 hPa
KXIH 45 mi34 min 6 G 15 72°F 57°F
KBQX 47 mi34 min N 11 73°F 57°F

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 mi16 minN 610.00 miFair57°F52°F83%1022.6 hPa

Wind History from LBX (wind in knots)
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Last 24hrCalmCalmCalmN5NE5Calm53N4NE4N4CalmS3CalmCalmCalmCalmCalmCalmCalmCalmCalmNW6N6
1 day agoCalmCalmN4N17
G26
NE12NE7E9N6N7------NW4CalmCalmCalmCalmNW5N5CalmCalmN3CalmCalm
2 days agoCalmCalmE5SE5S11SE14SE13S13S16S12SE11S11SE10SE6SE6SE7SE9SE8SE5S4CalmCalmCalmCalm

Tide / Current Tables for Freeport Harbor, Texas
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Freeport Harbor
Click for Map
Tue -- 12:20 AM CDT     1.69 feet Low Tide
Tue -- 02:45 AM CDT     1.73 feet High Tide
Tue -- 07:28 AM CDT     Sunrise
Tue -- 11:37 AM CDT     Moonrise
Tue -- 12:33 PM CDT     0.25 feet Low Tide
Tue -- 06:42 PM CDT     Sunset
Tue -- 09:30 PM CDT     1.89 feet High Tide
Tue -- 10:27 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.71.71.71.71.71.61.41.210.70.40.30.30.40.60.81.11.31.61.81.91.91.8

Tide / Current Tables for Christmas Bay, Texas
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Christmas Bay
Click for Map
Tue -- 01:57 AM CDT     1.00 feet High Tide
Tue -- 04:25 AM CDT     0.36 feet Low Tide
Tue -- 07:27 AM CDT     Sunrise
Tue -- 08:56 AM CDT     0.91 feet High Tide
Tue -- 11:36 AM CDT     Moonrise
Tue -- 04:05 PM CDT     0.09 feet Low Tide
Tue -- 06:41 PM CDT     Sunset
Tue -- 10:26 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.9110.70.40.40.50.70.90.90.90.80.70.50.30.20.10.10.20.20.40.50.60.7

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Houston/Galveston, TX (7,2,3,4)
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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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Disclaimer:
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.