Friday, March22, 2019 L-36.com


Marine Weather and Tides
Port O'Connor, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:28AMSunset 7:41PM Friday March 22, 2019 7:08 PM CDT (00:08 UTC) Moonrise 8:39PMMoonset 7:48AM 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- 337 Pm Cdt Fri Mar 22 2019
Tonight..Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Isolated showers after midnight.
Saturday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers.
Saturday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Sunday..Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. Isolated showers and Thunderstorms in the afternoon.
Sunday night..South winds 5 to 10 knots. Bay waters smooth.
Monday..South winds around 5 knots becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and isolated Thunderstorms.
Monday night..East winds around 5 knots becoming northeast 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight.
Tuesday..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Tuesday night..East winds 5 to 10 knots. Bay waters smooth.
Wednesday..East winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 337 Pm Cdt Fri Mar 22 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Winds will remain light out of the southeast tonight, before increasing tomorrow as high pressure shifts eastward and the next weather system approaches. In response, expect offshore seas to build through the weekend up to 2-4 feet Saturday afternoon into early next week. A cold front moves through the region late Monday with north to northeast winds behind the front possibly necessitating a sca. We could see a few showers pop up Saturday, with rain chances increasing for Sunday and Monday as front nears.


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 222339
afdhgx
area forecast discussion
national weather service houston galveston tx
639 pm cdt Fri mar 22 2019

Aviation
For most TAF sites,VFR overnight. Similar to last night, could see
some fog develop at lbx and sgr with low visibilities ceilings. For
now, just indicating MVFR but will monitor amend if it looks like
lower restrictions will develop.VFR tomorrow, and expect a cloud
deck around 6000-8000 feet to develop during the day. Look also
for increasing S to SE winds with some locations getting gusts to
around 20 knots. For now, only mentioning vcsh at cll, but we'll
have to see how things evolve as the day progresses. 42

Prev discussion issued 357 pm cdt Fri mar 22 2019
discussion...

surface high pressure over the sabine river valley has kept
regional winds light but its eastward movement into the eastern
u.S. Tomorrow will assist in swinging near to medium term winds
south to southeast. Clouds will begin to thicken up and lower
from west to east overnight and return flow off the gulf will
strengthen to breezy daytime levels over the weekend. This in
response to a somewhat shallow central plains trough low on its
eastward trek from the lees tonight into the ohio river valley
late Sunday. Rain chances will be low with the highest chances for
experiencing any measurable 60 hour rain occuring across the
northern half of the cwa. Most southeastern texas communities will
experience an occasional period of light rain or sprinkles... With
northern tier counties experiencing an isolated thunderstorm...

during the daytime hours either Saturday and or Sunday. Increased
lower level moisture will ensure more mild evenings with days
still warming into the average middle to upper 70s despite the
mainly overcast skies.

A weak cold front will move across east texas during the day Monday.

Areas of rain with isolated thunderstorms may form out ahead of
this boundary as it slowly moves through during the warmth of the
day. Other than turning winds north to northeast by Monday evening,
this front will have little to no impact on the day-to-day weather
pattern going into the final week of the month. A spring weather
pattern that appears to be in-line with the season as Tuesday
through Thursday's conditions will be nice. Partially cloudy to
sunny days with onshore winds re-establishing themselves Wednesday
afternoon. Weak southern plains upper ridging spells dry days
with overnights cooling into the low to mid 50s... Days warming
back up into the middle to upper 70s at mid week. A much more
aggressive Friday (or Saturday?) cold frontal passage will
significantly increase precipitation chances and introduce the
mention of possibly strong or severe storms. 31
marine...

winds will remain light out of the southeast tonight, before
increasing tomorrow as high pressure shifts eastward and next
weather system approaches. In response, expect seas to build
through the weekend up to 2-4 feet Saturday afternoon into early
next week. A cold front moves through the region Monday with north
to northeast winds behind the front probably necessitating a sca.

We could see a few showers pop up Saturday, with rain chances
increasing for Sunday and Monday as front nears. Evans

Preliminary point temps pops
College station (cll) 54 73 60 78 62 20 30 20 20 20
houston (iah) 55 76 61 77 63 10 20 10 20 20
galveston (gls) 60 73 64 75 65 10 20 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
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 0 mi39 min 68°F 68°F1018 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi39 min 70°F 71°F1018.3 hPa
VCAT2 18 mi39 min 68°F 72°F1018 hPa
AWRT2 26 mi39 min 69°F 70°F1018.2 hPa
EMAT2 32 mi39 min 67°F 71°F1018.3 hPa
KBQX 42 mi34 min SE 7 72°F 55°F
RCPT2 - 8774770 - Rockport, TX 45 mi39 min 69°F 1017.8 hPa
SGNT2 47 mi39 min 68°F 67°F1018.8 hPa

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX21 mi76 minSE 1110.00 miFair72°F60°F66%1018.6 hPa
Port Lavaca - Calhoun County Airport, TX21 mi74 minSE 1210.00 miFair76°F50°F42%1018.3 hPa

Wind History from PKV (wind in knots)
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Last 24hr--------------S3S3CalmCalmCalmCalm--E4E5SE7E9SE12SE13
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1 day agoS6S4CalmS3CalmCalmNW6NW5NW3----N4CalmNE4NE6E8--E4E6SE6E7E6----
2 days ago----------------------------NE6--E9----SE11
G15
SE11SE9SE9S9

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Fri -- 12:36 AM CDT     0.27 feet Low Tide
Fri -- 07:27 AM CDT     Sunrise
Fri -- 07:36 AM CDT     0.66 feet High Tide
Fri -- 08:47 AM CDT     Moonset
Fri -- 02:03 PM CDT     0.36 feet Low Tide
Fri -- 06:49 PM CDT     0.49 feet High Tide
Fri -- 07:37 PM CDT     Sunset
Fri -- 09:39 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.30.30.40.50.50.60.70.70.60.60.50.40.40.40.40.40.40.50.50.50.40.30.3

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.


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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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.