Monday, December18, 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 7:14AMSunset 5:35PM Monday December 18, 2017 3:02 AM CST (09:02 UTC) Moonrise 7:22AMMoonset 6:10PM Illumination 0% Phase: New Moon; Moon at 0 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- 908 Pm Cst Sun Dec 17 2017
Rest of tonight..Northeast winds around 5 knots becoming north after midnight. Bay waters smooth. Patchy fog. A slight chance of showers late in the evening. Isolated Thunderstorms. A chance of showers after midnight.
Monday..Northeast winds 5 to 10 knots becoming east in the afternoon. Bay waters smooth. Patchy fog in the morning. Areas of fog in the afternoon. Showers likely in the morning. Isolated Thunderstorms. A chance of showers in the afternoon.
Monday night..East winds 5 to 10 knots becoming southeast after midnight. Bay waters smooth. Areas of fog. A slight chance of showers in the evening. Isolated Thunderstorms. A chance of showers after midnight.
Tuesday..South winds 10 to 15 knots. Bay waters slightly choppy. Areas of fog. A chance of showers and isolated Thunderstorms.
Tuesday night..Southwest winds around 10 knots becoming northwest after midnight. Bay waters smooth to slightly choppy becoming smooth after midnight. Patchy fog. Showers likely in the evening. Isolated Thunderstorms. A slight chance of showers after midnight.
Wednesday..Northwest winds 5 to 10 knots becoming west in the afternoon. Bay waters smooth.
Wednesday night..South winds around 5 knots. Bay waters smooth.
Thursday..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers.
Thursday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers.
Friday..South winds 10 to 15 knots becoming southwest 15 to 20 knots in the afternoon. Bay waters slightly choppy becoming choppy in the afternoon. A chance of showers.
Friday night..North winds 15 to 20 knots decreasing to 10 to 15 knots after midnight. Bay waters choppy becoming slightly choppy after midnight. A chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 908 Pm Cst Sun Dec 17 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Winds will continue to veer to the east tonight, and sea fog development will be possible over the bays and nearshore waters. Early Monday a warm front will set up over the northwestern gulf of mexico and push north, and isolated to scattered showers will be possible through Tuesday. The next cold front is forecast to push off the coast Tuesday night into early Wednesday.

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 180532
afdhgx
area forecast discussion
national weather service houston galveston tx
1132 pm cst Sun dec 17 2017

Aviation [06z TAF issuance]
Dense fog and lifr conditions seemed confined to the northern
half of the TAF sites. But kcxo has recently become MVFR after
being socked in with fog. The expectation is for kcll kuts kcxo to
remain with dense fog through the morning hours. The houston
terminals southward have MVFRVFR conditions but like the other
areas, there is still the potential for ifr conditions to develop
with fog and low clouds. Along the coastVFR MVFR conditions may
be more likely. Tafs at klbx kgls still indicate a transition to
ifr but there is more of a chance that this may not happen. Models
continue with rain chances starting in the morning hours and with
isentropic upglide with the front stalled off the coast, think
thunderstorms will be limited. Rain drizzle along with fog and low
clouds should continue for much of the day Monday with only brief
periods of improving conditions.

Overpeck

Prev discussion issued 901 pm cst Sun dec 17 2017
A dense fog advisory has been issued for portions of the brazos
valley and piney woods region from 10 pm tonight through 10 am
Monday. Visibilities in those areas have already fallen to 1 2
mile in some locations and will likely only worsen as the night
goes on. This fog, along with grey and rainy conditions closer to
the coast could really slow down the Monday morning commute across
the area. The advisory may need to be expanded southward later
tonight, but there is currently not as much confidence that those
areas will see widespread dense fog.

11

Preliminary point temps pops
College station (cll) 54 49 64 60 71 60 60 90 40 10
houston (iah) 64 54 67 64 74 60 40 60 70 10
galveston (gls) 62 58 66 64 70 60 20 30 60 10

Hgx watches warnings advisories
Tx... Dense fog advisory until 10 am cst Monday for the following
zones:
brazos... Burleson... Grimes... Houston... Madison... Montgomery... Polk... San
jacinto... Trinity... Walker... Washington.

Gm... None.

Near term... 11
aviation... Overpeck


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 0 mi44 min N 9.9 G 11 56°F 57°F1019 hPa
MBET2 4 mi44 min NNE 8.9 G 12 57°F 60°F1017.8 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi44 min N 7 G 11 56°F 57°F1019.1 hPa
VCAT2 18 mi44 min NNE 5.1 G 8 55°F 55°F1019 hPa
AWRT2 26 mi44 min NNE 8 G 9.9 56°F 55°F1019 hPa
EMAT2 32 mi44 min N 5.1 G 8 58°F 58°F1018.2 hPa
KBBF 38 mi27 min ENE 9.9 70°F 66°F
KBQX 42 mi27 min NNE 17 63°F 61°F
SGNT2 47 mi44 min NNE 4.1 G 6 60°F 58°F1018.9 hPa

Wind History for Port OConnor, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX21 mi67 minNNE 610.00 miOvercast55°F52°F93%1019.6 hPa
Palacios Municipal Airport, TX21 mi69 minNNE 78.00 miOvercast57°F57°F100%1019.1 hPa

Wind History from PKV (wind in knots)
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Last 24hrNW6NW5CalmN5CalmN3NE5N8NE4CalmCalmCalmE4CalmCalmCalmCalmN3NW4N5N4N6N6NE5
1 day agoNW3CalmN3N4NE6NE7NE8NE8E14E11E13
G18
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E11NE9NE7N9NW8NW15N14
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2 days agoN10N10
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G18
N9N9N10N9N11NE12NE8N8NE9N6N3CalmCalmCalmW3NW3CalmCalmCalmCalm

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Mon -- 12:31 AM CST     New Moon
Mon -- 07:12 AM CST     Sunrise
Mon -- 07:20 AM CST     Moonrise
Mon -- 11:26 AM CST     -0.21 feet Low Tide
Mon -- 05:32 PM CST     Sunset
Mon -- 06:10 PM CST     Moonset
Mon -- 11:46 PM CST     0.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.50.40.30.20.10-0.1-0.2-0.2-0.2-0.2-0.100.10.20.30.40.50.60.60.6

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Mon -- 12:26 AM CST     0.66 feet High Tide
Mon -- 12:31 AM CST     New Moon
Mon -- 07:13 AM CST     Sunrise
Mon -- 07:21 AM CST     Moonrise
Mon -- 02:10 PM CST     -0.39 feet Low Tide
Mon -- 05:32 PM CST     Sunset
Mon -- 06:11 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.70.60.60.50.50.40.30.10-0.1-0.2-0.3-0.4-0.4-0.4-0.3-0.2-0.10.10.20.30.50.6

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 (4,6,7,8)
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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.