Friday, July19, 2019 L-36.com


Marine Weather and Tides
Palacios, 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 6:35AMSunset 8:24PM Thursday July 18, 2019 11:38 PM CDT (04:38 UTC) Moonrise 8:56PMMoonset 7:06AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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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GMZ330 Matagorda Bay- 1035 Pm Cdt Thu Jul 18 2019
Rest of tonight..South winds 10 to 15 knots. Bay waters slightly choppy.
Friday..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Friday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Saturday..South winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Sunday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday night..South winds around 10 knots becoming southwest after midnight. Bay waters smooth to slightly choppy becoming smooth after midnight. A slight chance of showers and Thunderstorms.
Tuesday..West winds around 5 knots becoming east in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Tuesday night..East winds around 5 knots becoming northeast after midnight. Bay waters smooth. 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 1035 Pm Cdt Thu Jul 18 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Generally quiet weather is expected over the next few days. Wind speeds tonight will approach scec criteria with winds speeds in the 10 to 15 kt range. Otherwise, high pressure over the gulf will provide dry weather and the typical summertime wind pattern over the next couple of days. Chance of showers increases by Saturday and will remain a possibility into the new week.


7 Day Forecast for Marine Location Near Palacios, TX
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location: 28.69, -96.39     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 190435
afdhgx
area forecast discussion
national weather service houston galveston tx
1135 pm cdt Thu jul 18 2019

Aviation [06z TAF issuance]
Vfr conditions will prevail for most TAF sites through the next 24
hours with a few exceptions. MVFR CIGS may develop again around
09z at cll, and iah may see some lower CIGS for a couple of hours
beginning around 13z. Cxo could again see some fog appear
overnight before burning off in the morning. Friday is looking
even drier than Thursday, so no vcsh is expected at any TAF site.

Fowler

Prev discussion issued 936 pm cdt Thu jul 18 2019
Update
Dewpoints are a few degrees lower than 24 hours ago.

That's about as exciting as it gets tonight. Otherwise, normal
july wx continues into the weekend. Ongoing fcst looks fine. 47

Short term [through Friday]
Mid to upper level ridge will continue over southeast texas,
limiting shower activity today and Friday. Low level moisture will
remain fairly the same through Friday, with pws ranging from 1.4
to 1.8 inches. The overall weather conditions should remain dry
and hot. There is a chance sea breeze effects and diurnal heating
could provide some lift for isolated shower and thunderstorm
activity during the late morning and afternoon hours today and
Friday. The activity, if any, would dissipate in the evening with
the loss of daytime heating. Areas of patchy fog could develop
overnight and early morning Friday, dissipating after sunrise.

Low temperatures will range from the mid 70s to low 80s tonight
and high temperatures will range from the low to mid 90s Friday.

Localized areas could experience heat indices near heat advisory
criteria today and Friday. Take extra care if you plan to work or
spend time outside.

Long term [Saturday through Thursday]
Rain chances look to increase this weekend. A pulses of low level
moisture are expected to move from the gulf waters into southeast
texas Saturday and Sunday. Models indicate pwat values of 1.7 to
a little over 2.0 inches for both days. Moisture is expected to
propagate mainly over the coastal waters and south of i-10 in the
mornings, gradually moving northward over the central and
northern regions during the afternoon and evening hours. Look for
passing showers moving into the southern regions from the coastal
waters in the morning followed by showers and thunderstorms
developing inland in the afternoon each day.

On Monday, chances of shower and thunderstorm activity continues
as a weak disturbance moves over the northern gulf waters.

Meanwhile, an upper level trough exiting the rockies will develop
as it moves into the north and central plains. The trough is
expected to amplify even further Tuesday through Thursday, as the
ridge builds further over the rockies. Models are not yet in
agreement with the timing and location of the frontal boundary
associated to the trough, but most of them are inclining on
propagating the front through the local region sometime Tuesday.

Additionally, the model blend does indicate good shower and
thunderstorm activity Tuesday through Wednesday morning.

Temperatures slightly decrease, with high temperatures ranging in
the upper 80s to low 90s all mid week. Northerly winds are also
expected Tuesday. However, because of the amount of uncertainty
and the fact that this is well into the end of the forecast
period, this forecast is subject to change in the next few days.

We will know more on timing and location, as well as a better idea
of the impacts are we approach this timeframe.

24

Marine
A typical summer time pattern will be in place for the marine area through
the weekend. Winds will generally be from the south around 10-15
knots during the day with slightly higher speeds, possibly approaching
caution conditions overnight. This will also support seas around 2-4
feet. Will need to watch for rip currents as well. The galveston beach
patrol reported moderate to occasionally strong rip currents. Tides
should be about a half foot to a foot above normal but water levels are
expected to remain critical thresholds. Looking ahead, a weak cold front
could enter the coastal waters late Tuesday or early Wednesday. 43

Preliminary point temps pops
College station (cll) 77 96 76 96 76 0 10 10 10 0
houston (iah) 78 94 78 93 77 0 20 10 20 10
galveston (gls) 83 92 82 92 81 10 10 10 20 10

Hgx watches warnings advisories
Tx... None.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 12 mi56 min SSE 13 G 16 83°F 88°F1014.8 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi56 min S 16 G 17 84°F 87°F1014.6 hPa
MBET2 19 mi56 min S 14 G 17 85°F 1014 hPa
EMAT2 25 mi56 min SSE 11 G 14 85°F 87°F1014.9 hPa
SDRT2 - 8773037 - Seadrift, TX 26 mi56 min SE 9.9 G 15 85°F 87°F1014.9 hPa
AWRT2 39 mi56 min SSE 12 G 16 85°F 87°F1014.9 hPa
SGNT2 41 mi50 min SSE 12 G 14 85°F 88°F1015.1 hPa
KBQX 48 mi43 min SSE 14 84°F 77°F

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX8 mi45 minSSE 910.00 miPartly Cloudy86°F75°F70%1015.3 hPa
Port Lavaca - Calhoun County Airport, TX16 mi63 minSSE 610.00 miFair82°F76°F84%1015.2 hPa

Wind History from PKV (wind in knots)
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Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Fri -- 04:49 AM CDT     -0.46 feet Low Tide
Fri -- 06:40 AM CDT     Sunrise
Fri -- 09:01 AM CDT     Moonset
Fri -- 03:42 PM CDT     0.61 feet High Tide
Fri -- 08:24 PM CDT     Sunset
Fri -- 10:32 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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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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Wind Forecast for Houston/Galveston, TX (0,6,7,8)
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Ground Weather Radar Station Houston/Galveston, TX
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Gulf Stream Current


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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.