Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Palacios, 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 6:54AMSunset 7:59PM Sunday August 20, 2017 3:59 PM CDT (20:59 UTC) Moonrise 4:41AMMoonset 6:22PM Illumination 2% Phase: Waning Crescent; Moon at 28 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-galveston Bay- 1010 Am Cdt Sun Aug 20 2017
Today..Variable winds around 5 knots becoming southeast around 10 knots in the afternoon. Bay waters smooth to slightly choppy. A slight chance of showers and isolated Thunderstorms.
Tonight..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Tuesday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms in the morning, then a slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..Southeast winds 5 to 10 knots becoming south after midnight. Bay waters smooth.
Wednesday..Northeast winds around 5 knots becoming southeast in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots becoming southwest after midnight. Bay waters smooth. A slight chance of showers and Thunderstorms.
Thursday..North winds around 5 knots becoming northeast in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Thursday night..East winds 5 to 10 knots. 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 1010 Am Cdt Sun Aug 20 2017
Synopsis for high island to matagorda ship channel out 60 nm.. The region of surface high pressure that was located over the northwestern gulf of mexico will begin to move northeastward today, and chances of showers and Thunderstorms will be returning to the forecast as this occurs. Light winds should remain out of the south to southeast with low seas throughout much of the 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 201720
afdhgx
area forecast discussion
national weather service houston galveston tx
1220 pm cdt Sun aug 20 2017

Aviation
Slightly higher available moisture to work with today. Think
we'll see some iso sct precip start expanding in areal
coverage... With best coverage generally south of i-10 (seabreeze)
and also east of i-45 once we get temperatures up another couple
degrees. The strongest cells will be capable of producing some
20-35kt gusts. Precip will dissipate early this evening W the
loss of heating.VFR conditions will persist outside of
convection. Guidance suggests some spotty 1000-2500ft CIGS a
possibility from 10-15z. 47

Prev discussion issued 1040 am cdt Sun aug 20 2017
the late morning growth of a expansive cumulus field a signal
that the lower levels are still pretty moist. Areawide middle to
upper 70 surface dew points evidence to this fact and mid-late
august Sun already warming the day into the middle 80s at 10 am
with respective coastal heat indices in the 97 to 103 f range.

Will monitor for the potential that our coastal counties (possibly
2nd tier counties) may need a short fuse heat advisory latter
today but... As of now... Communicating the health risks of this
prolonged heat via a special weather statement.

Unsettled weather is on tap the next couple of days. Thicker
cloud cover and more frequent areawide precipitation as the region
falls along the western edge of broad cyclonic flow from an western
gulf upper low. Today's slight to low end chance pops will focus
on the southeastern forecast area galveston bay. This is where the
the highest pw plume of near 2 inches resides and... With higher
pv coming around the northwestern periphery of the central gulf
upper low... The southeastern CWA is where any afternoon convection
will likely fire. Moderate rain probabilities will spread westward
across the southern third of the region tomorrow. 31

Preliminary point temps pops
College station (cll) 101 76 98 75 98 10 10 20 10 20
houston (iah) 98 76 96 77 94 20 10 40 10 40
galveston (gls) 93 84 90 82 91 20 10 40 10 30

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 mi42 min ESE 13 G 15 87°F 91°F1014.4 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi42 min SE 8.9 G 11 86°F 1014.5 hPa
MBET2 19 mi42 min SSE 8.9 G 9.9 85°F 89°F1013.7 hPa
EMAT2 25 mi42 min SE 8.9 G 12 87°F 90°F1014.5 hPa
SDRT2 - 8773037 - Seadrift, TX 26 mi42 min SE 8 G 11 89°F 90°F1014.7 hPa
AWRT2 39 mi42 min ESE 7 G 9.9 87°F 90°F1014.7 hPa
SGNT2 41 mi42 min ESE 9.9 G 12 88°F 92°F1014.7 hPa
KBQX 48 mi25 min ESE 5.1 90°F 90°F
MAXT2 - Mission-Aransas Reserve, TX 51 mi60 min SE 8.9 1015 hPa (-1.0)

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX8 mi67 minSSE 1010.00 miFair90°F75°F62%1014.9 hPa
Port Lavaca - Calhoun County Airport, TX16 mi85 minESE 10 G 1410.00 miFair92°F72°F52%1015.2 hPa

Wind History from PKV (wind in knots)
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Last 24hrE8S9SE11
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S9S7SE6SE4S5S4S4S5S3CalmS3CalmCalmCalmE3CalmE6SE10E9SE9E10
1 day agoE12E13SE11
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SE7SE6S5S6S4S4S3S3CalmS3CalmCalmN3W4SW3W4SE4CalmSE5E7
2 days agoS10S9
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SE9SE5SE4CalmS4S4S3S5CalmS5SE4CalmS4CalmS7S7SW7S3SE5E12
G17
E12
G19

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Sun -- 01:58 AM CDT     -0.11 feet Low Tide
Sun -- 05:42 AM CDT     Moonrise
Sun -- 06:58 AM CDT     Sunrise
Sun -- 04:03 PM CDT     0.89 feet High Tide
Sun -- 07:22 PM CDT     Moonset
Sun -- 08:00 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0-0.1-0.1-0.100.10.30.40.60.70.80.80.90.90.90.90.90.90.90.80.70.60.40.3

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Sun -- 01:55 AM CDT     -0.29 feet Low Tide
Sun -- 05:42 AM CDT     Moonrise
Sun -- 06:58 AM CDT     Sunrise
Sun -- 12:49 PM CDT     0.93 feet High Tide
Sun -- 07:22 PM CDT     Moonset
Sun -- 08:00 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.3-0.3-0.3-0.100.20.40.60.70.80.90.90.90.90.90.90.90.80.80.70.50.40.2

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 (16,3,4,5)
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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.