Friday, July19, 2019 L-36.com


Marine Weather and Tides
Quintana, TX

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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 6:33AMSunset 8:22PM Friday July 19, 2019 6:35 PM CDT (23:35 UTC) Moonrise 9:28PMMoonset 7:55AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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:201907200930;;317129 Fzus54 Khgx 192029 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 329 Pm Cdt Fri Jul 19 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. Gmz350-355-200930- Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 329 Pm Cdt Fri Jul 19 2019
Tonight..South winds 10 to 15 knots. Seas 2 to 3 feet.
Saturday..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Saturday night..South winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Sunday..South winds 5 to 10 knots. Seas 2 feet. A chance of showers and Thunderstorms.
Sunday night..South winds 10 to 15 knots. Seas 2 feet. A slight chance of showers and Thunderstorms.
Monday..South winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and Thunderstorms.
Monday night..South winds around 10 knots becoming southwest after midnight. Seas 1 to 2 feet. A chance of showers and Thunderstorms.
Tuesday..Northwest winds 5 to 10 knots becoming north in the afternoon. Seas 1 to 2 feet. Showers and Thunderstorms likely.
Tuesday night..East winds 5 to 10 knots becoming northeast 10 to 15 knots after midnight. Seas 1 to 2 feet. Showers and Thunderstorms likely.
Wednesday..Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Wednesday night..East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 329 Pm Cdt Fri Jul 19 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Light to moderate onshore winds are expected through the weekend. Scattered showers and Thunderstorms can be expected both Saturday and Sunday. A weak cold front will approach the coastal waters on Tuesday.


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 192104
afdhgx
area forecast discussion
national weather service houston galveston tx
404 pm cdt Fri jul 19 2019

Short term [through Saturday]
High pressure ridge will continue to dominate the local weather
for the rest of today and tonight. Although a generally dry
weather pattern is expected, isolated showers and thunderstorms
can be expected this afternoon, mainly from the sea breeze and
diurnal effects. Satellite imagery currently shows areas of
building cumulus over the southern half of the cwa. Radar imagery
also shows a couple of isolated showers developing over the
harris and fort bend counties. Rain activity is expected to
dissipate this evening with the loss of daytime heating. Little
to no rainfall is expected inland tonight. Temperatures will
range in the low to mid 90s this afternoon and in the upper 70s to
low 80s tonight.

Pulses of low level moisture will occasionally move from
the gulf and into the local area this weekend. A typical
summertime pattern can be expected Saturday. During the
overnight and early morning hours, a few passing showers from the
gulf waters could occasionally move into the local waters and
coastal regions. During the late morning and afternoon hours,
expect an increase in shower and storm activity, particularly
along the sea breeze boundaries. Showers and thunderstorms will
dissipate with the loss of heating in the evenings. Temperatures
will again range in the low to mid 90s Saturday afternoon with
heat indices over 100 deg f for most of southeast texas. Thus,
take extra care if you plan to spend time outside for long periods
of time.

24

Long term [Sunday through Thursday]
Area of low pressure is expected to develop over the gulf of
mexico Saturday slowly moving west to northwest Sunday. As the mid
level high pressure located over the rockies retreats further
west, the area of low pressure will be able to move into the
local waters. Weakness aloft along with the increase in low level
moisture will help increase shower and thunderstorm activity this
through Monday. Temperatures will be slightly cooler on Sunday
(only one or two degrees less). Winds from the south at 10-15 mph
will prevail Sunday.

A strong mid to upper level low will amplify over ontario quebec
Sunday. Meanwhile, an upper level shortwave will exit from the
northern rockies and move eastward across the northern plains. As
it does so, the upper level low and shortwave merge on Monday. As
a result, an elongated trough develops as the ridge over the
rockies amplifies. The GFS shows the trough extending from the
great lakes dipping all the way into the northern gulf waters,
whereas the ECMWF is a little more conservative. Models have been
consistent in brining an associated surface cold front Tuesday and
confidence in it reaching our local area is increasing. The
trough seems to stall along the texas coast Wednesday through
Thursday, which could prolong the convective activity. Thus,
shower and thunderstorm activity could affect our local region
through the end of the forecast period.

Although models have been showing this feature during the past
few days and are starting to look more in agreement with timing
and location of the front, some inconsistencies are still present.

They should however come into a better agreement during the next
few days. As they do, we will get a better idea of the impacts
over southeast texas. For the moment, the local forecast does
contain shower and thunderstorm activity with pops of up to 65
percent on Tuesday. The cold front should bring in slightly a
cooler air mass over southeast texas, which will help decrease the
local temperatures a bit. The increase in cloud coverage and rain
activity will also help bring down the heat indices across the
region. Based the latest model run, the highs look to range from
the upper 80s to the low 90s Tuesday through Thursday. The lows
could range from the low to upper 70s, possibly dipping down to
the upper 60s along the northernmost counties. 24

Marine
Typical summertime conditions are expected through Monday on the
bays and adjacent coastal waters with a light onshore flow during
the day increasing to a moderate onshore flow overnight. The
moderate onshore flow will approach scec conditions, but with waves
expected to be around 3 feet or less, have opted against the caution
flag at this time.

At the beaches, galveston beach patrol reports mainly moderate rip
currents, but an occasionally strong rip current is being
observed. As with the scec, will abstain from a rip current
statement at this time, but if beach patrol indicates conditions
are worsening, a statement may be issued.

Looking ahead, a weak cold front will enter the coastal waters late
Tuesday or early Wednesday. Expect an increase in thunderstorm
activity as the front advances into the coastal waters with periods
of storms possible through the end of next week. 43

Preliminary point temps pops
College station (cll) 76 96 76 95 76 0 10 0 10 0
houston (iah) 78 93 77 93 77 10 20 10 40 10
galveston (gls) 82 92 82 90 81 20 20 20 40 20

Hgx watches warnings advisories
Tx... None.

Gm... None.

Short long term discussion... 24
aviation marine... 43


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FCGT2 - 8772447 - USCG Freeport, TX 1 mi53 min SSE 11 G 14 86°F 86°F1015.7 hPa
FPST2 1 mi53 min SE 13 G 15 85°F 88°F1014.9 hPa
LUIT2 13 mi47 min SSE 9.9 G 14 86°F 88°F1015.2 hPa
SGNT2 20 mi53 min SSE 12 G 14 87°F 90°F1014.6 hPa
GRRT2 33 mi53 min S 9.9 G 14 86°F 89°F1014.7 hPa
EMAT2 36 mi47 min SE 9.9 G 16 86°F 89°F1014.4 hPa
GTOT2 37 mi53 min SSE 5.1 G 12 87°F 86°F1015.2 hPa
EPTT2 - 8771013 - Eagle Point, TX 42 mi53 min S 14 G 18 86°F 88°F1014.7 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 42 mi53 min SSE 13 G 14 86°F 87°F1014.5 hPa
KXIH 45 mi20 min S 11 88°F 77°F
KBQX 47 mi20 min SSE 14 88°F 79°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 mi42 minSSE 1310.00 miMostly Cloudy90°F75°F63%1014.9 hPa

Wind History from LBX (wind in knots)
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Last 24hrS11S10S9S8S6CalmCalmS4CalmS4S4S5CalmS7S12S11S11S12S12S12S10
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Tide / Current Tables for Freeport Harbor, Texas
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Freeport Harbor
Click for Map
Fri -- 06:34 AM CDT     Sunrise
Fri -- 07:26 AM CDT     1.43 feet High Tide
Fri -- 08:55 AM CDT     Moonset
Fri -- 11:57 AM CDT     1.13 feet Low Tide
Fri -- 03:06 PM CDT     1.17 feet High Tide
Fri -- 08:20 PM CDT     Sunset
Fri -- 10:28 PM CDT     Moonrise
Fri -- 11:42 PM CDT     -0.35 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.5-0.3-00.30.711.31.41.41.31.21.11.11.11.21.21.21.110.80.50.2-0.1-0.3

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 and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (19,4,5,8)
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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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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.