Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Port O'Connor, 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 7:29AMSunset 6:56PM Tuesday October 17, 2017 7:16 PM CDT (00:16 UTC) Moonrise 4:22AMMoonset 4:58PM Illumination 6% Phase: Waning Crescent; Moon at 27 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- 341 Pm Cdt Tue Oct 17 2017
Tonight..Northeast winds 5 to 10 knots. Bay waters smooth.
Wednesday..Northeast winds around 5 knots becoming east in the afternoon. Bay waters smooth.
Wednesday night..East winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms after midnight.
Thursday..East winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Thursday night..East winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms in the evening. A chance of showers and Thunderstorms after midnight.
Friday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Saturday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Sunday..Southwest winds 5 to 10 knots becoming northwest in the afternoon. Bay waters smooth. A chance of showers and Thunderstorms.
Sunday night..North winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 341 Pm Cdt Tue Oct 17 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Winds and seas will continue decreasing tonight as wind speed diminish. Winds will be veering to the east by Wednesday as high pressure moves off to the east. A long easterly fetch will set up across the gulf of mexico Thursday and will continue into the weekend resulting in elevated seas and tides.

7 Day Forecast for Marine Location Near Port O'Connor CDP, TX
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location: 28.44, -96.4     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 172347
afdhgx
area forecast discussion
national weather service houston galveston tx
643 pm cdt Tue oct 17 2017

Aviation
Vfr through period. A near calm overnight wind will wake up from
the east southeast by late morning. Still feel regional air mass is
still too dry to produce any significant Wednesday morning fog. 31

Prev discussion issued 343 pm cdt Tue oct 17 2017
discussion...

surface high pressure ridge overhead. Should see another cool
night with temperatures falling to below normal over the inland
areas.

Next system will move into southeast texas over the weekend. Both
the GFS and ECMWF are in better agreement with the upper level
system moving overhead Saturday night through Sunday night. A
frontal boundary will move through the forecast area and bring
decent chances for showers and thunderstorms. Still a bit unsure
about timing and coverage -- the 12z model runs show an indication
that better coverage will occur along and ahead of the frontal
boundary on Sunday as compared to Saturday. However, a warm front
should move northward inland and bring chances for showers and
thunderstorms. Will continue to monitor the potential for strong
to severe storms over the weekend. The models continue to show a
drying trend starting on Monday. 40
marine...

ne winds have diminished and should transition to the east on wed. A
ridge of high pressure to the northeast and a weak area of low
pressure near the yucatan will maintain a long E ese fetch across
the northern gulf this week. Pressure gradient will tighten and
speeds will increase later in the work week. Caution flags could be
needed. Seas and tide levels will also increase and we'll need to
keep an eye on water levels as guidance still indicates the
possibility that they'll exceed 3.3 feet on Friday. 47
fire weather...

rh's bottoming out in the 25-35% range today are expected to be a
bit higher on Wed then increase significantly on Thursday through
the end of the week. 47
prev discussion... Issued 1222 pm cdt Tue oct 17 2017
aviation...

vfr. 47

Preliminary point temps pops
College station (cll) 50 84 59 85 63 0 0 0 10 10
houston (iah) 53 84 63 85 66 0 0 10 10 10
galveston (gls) 67 82 72 84 74 0 10 10 10 10

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 42
aviation marine... 31


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 0 mi47 min E 1.9 G 4.1 77°F 78°F1019.8 hPa
MBET2 4 mi47 min SE 2.9 G 4.1 74°F 80°F1018.9 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi47 min SSE 4.1 G 5.1 74°F 73°F1020.2 hPa
VCAT2 18 mi47 min N 6 G 7 75°F 72°F1019.8 hPa
AWRT2 26 mi47 min E 4.1 G 5.1 76°F 73°F1020 hPa
EMAT2 32 mi47 min ESE 2.9 G 5.1 72°F 74°F1019.8 hPa
KBBF 38 mi42 min NE 8.9 73°F 54°F
KBQX 42 mi42 min ENE 8.9 73°F 52°F
SGNT2 47 mi47 min ENE 8.9 G 12 73°F 77°F1019.7 hPa

Wind History for Port OConnor, TX
(wind in knots)    EDIT      (on/off)   Help
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SE12
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX21 mi22 minN 510.00 miFair72°F45°F40%1020.3 hPa
Palacios Municipal Airport, TX21 mi24 minSE 610.00 miFair66°F53°F63%1020.3 hPa

Wind History from PKV (wind in knots)
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Last 24hrN6N6N4NW3NW4N5N6N3N5N4N5N6N4N4N6NE9N7NE7NE8NE8N7NE8N5N4
1 day agoN16
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N13
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N12N11N16
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N11N12
2 days agoSE7SE6SE6SE4SE5CalmCalmCalmCalmCalmCalmNW3N4N6N4N8NE8NE8N8
G18
N9
G17
N8
G11
N18
G24
N16N15
G24

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Tue -- 05:22 AM CDT     Moonrise
Tue -- 06:07 AM CDT     1.21 feet High Tide
Tue -- 07:27 AM CDT     Sunrise
Tue -- 11:20 AM CDT     1.07 feet Low Tide
Tue -- 05:07 PM CDT     1.16 feet High Tide
Tue -- 05:58 PM CDT     Moonset
Tue -- 06:53 PM CDT     Sunset
Tue -- 10:49 PM CDT     1.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
111.11.11.21.21.21.21.21.11.11.11.11.11.11.11.21.21.21.11.11.111

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Tue -- 01:11 AM CDT     0.56 feet Low Tide
Tue -- 05:23 AM CDT     Moonrise
Tue -- 07:28 AM CDT     Sunrise
Tue -- 07:45 AM CDT     0.90 feet High Tide
Tue -- 01:26 PM CDT     0.66 feet Low Tide
Tue -- 05:59 PM CDT     Moonset
Tue -- 06:54 PM CDT     Sunset
Tue -- 07:49 PM CDT     0.98 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.60.70.80.80.90.90.90.80.80.70.70.70.70.80.90.91110.90.8

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 (20,4,5,8)
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Ground Weather Radar Station Corpus Christi, 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.