Saturday, July22, 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 6:42AMSunset 8:26PM Saturday July 22, 2017 5:56 AM CDT (10:56 UTC) Moonrise 4:51AMMoonset 6:50PM 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- 405 Am Cdt Sat Jul 22 2017
Today..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A chance of showers and Thunderstorms.
Tonight..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms in the evening.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy.
Monday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Tuesday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Wednesday night..South winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 405 Am Cdt Sat Jul 22 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Increased shower and storm coverage today as a weak circulation moves west across the region. Slightly higher winds and seas early next week in response to a tightened onshore pressure gradient.

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


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 220901
afdcrp
area forecast discussion
national weather service corpus christi tx
401 am cdt Sat jul 22 2017

Short term (today through Sunday)
The GFS ensemble mean maintains an upper level trough low at
500-mb affecting the extreme NW gulf of mexico sern tx during the
period. Goes-16 WV imagery depicts pwat values 1.8-2.0 inches
over the nern CWA and significantly lower over the remainder of
the cwa. The GFS and NAM deterministic predict a portion of the
drier air to the S SW to advect into the CWA Sunday. Thus, the
combination of the upper trough moisture to contribute to
convection today, primarily over the nern cwa. Owing to drier
conditions, the chance for convection will decrease Sunday. The
expected combination of surface rh t values will result in maximum
heat index values 110 or slighty higher over a portion of the srn
coastal bend this afternoon, and thus will issue a corresponding
heat advisory; expect 105-109f heat index values elsewhere over
the cwa. Anticipate scec conditions over the SRN waters this
afternoon and over much of the msa tonight Sunday, owing to
expected mixing of greater momentum from aloft. Anticipate a
moderate rip current risk today Sunday given new moon persistent
onshore flow.

Long term (Sunday night through Friday)
Mid upper level low is progged to be draped across the region Sunday
night through Monday. Models also show the deeper moisture shifting
northward with drier conditions filtering into S tx through Sunday
night mon. Therefore, Sunday night and Mon are expected to be quiet.

Deeper moisture advects into the southern coastal bend Mon night,
bringing a slight chc of mainly -shra's to the coast and across the
coastal waters. Rain chcs increase across the eastern portions of
the CWA through tue. The upper trough axis is progged to be to the
west of the area. Given a minimal cap, strong cape, moderate low
level convergence across the east, am expecting sct convection
across the northeastern portions of the CWA and a slight chc farther
south and west. The lower pops over the remainder of the CWA is due
to some confluent flow progged aloft and the cap is a tad stronger.

Models prog better chcs of precip wed, however the cap is progged to
be slightly stronger and actually expect Tue to be the better day.

But for now kept with consistent forecast of 20-30 pops across
eastern CWA wed. Tyical summer time conditions expected through the
end of next week with periods of deeper moisture leading to a more
active afternoon sea breeze at times. Afternoon heat indices will
generally be 105 to 109 with occasionally some locations reaching
around 110 at times. Breezy conditions expected during the
afternoons Monday through wed. Could see onshore winds borderline
small craft advisory levels across the southern bays and nearshore
waters at times through the first half of next week.

Preliminary point temps pops
Corpus christi 95 79 94 78 97 10 10 10 10 10
victoria 95 78 93 77 97 30 20 20 10 10
laredo 103 79 102 79 103 0 10 10 10 10
alice 100 77 99 76 100 10 10 10 10 10
rockport 90 83 90 82 94 20 10 10 10 10
cotulla 103 77 102 76 102 0 10 10 10 10
kingsville 98 78 97 78 98 10 10 10 10 10
navy corpus 90 83 90 84 94 20 10 10 10 10

Crp watches warnings advisories
Tx... Heat advisory from 1 pm this afternoon to 6 pm cdt this evening
for the following zones: jim wells... Kleberg... Nueces.

Gm... None.

Wc 87... Short term
te 81... Long term


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 SSW 8 G 9.9 83°F 1013.7 hPa
MBET2 4 mi39 min SW 13 G 15 85°F 88°F1012.8 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi39 min S 12 G 14 86°F 86°F1013.9 hPa
VCAT2 18 mi39 min S 8.9 G 12 83°F 87°F1013.8 hPa
AWRT2 26 mi39 min S 9.9 G 14 84°F 87°F1013.8 hPa
EMAT2 32 mi39 min S 8 G 12 84°F 88°F1013.6 hPa
KBBF 38 mi22 min SW 16 84°F 75°F
MAXT2 - Mission-Aransas Reserve, TX 40 mi57 min S 8.9 1014 hPa (+0.0)
CPNT2 40 mi39 min S 7 G 11 83°F 87°F
KBQX 42 mi22 min SSW 11 86°F 86°F
RCPT2 - 8774770 - Rockport, TX 45 mi39 min SSW 13 G 15 85°F 89°F1013.4 hPa
SGNT2 47 mi39 min SSW 12 G 15 85°F 89°F1013.4 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 mi62 minSSE 310.00 miPartly Cloudy77°F74°F91%1014.2 hPa
Palacios Municipal Airport, TX21 mi64 minSSW 810.00 miA Few Clouds83°F75°F79%1014.1 hPa

Wind History from PKV (wind in knots)
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Last 24hrCalmNE3CalmS3S3CalmSE3
G12
SE10S6SE9SE11SE12S11S10S7SE5S4SE3SE4S4S4SE3SE3S3
1 day agoCalmCalmCalmSW3W6SW4S3CalmSE10SE10S7
G15
SE11SE11S8S8S5S6S4S4S4S4CalmCalmCalm
2 days agoSE3CalmCalmCalmCalmE5N3SE8
G15
CalmE3SE9SE8SE9S5SE6SE4SE4SE4S4S5S4S3CalmCalm

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Sat -- 05:51 AM CDT     Moonrise
Sat -- 06:41 AM CDT     Sunrise
Sat -- 11:03 AM CDT     0.66 feet High Tide
Sat -- 07:49 PM CDT     Moonset
Sat -- 08:21 PM CDT     Sunset
Sat -- 11:48 PM CDT     -0.48 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.4-0.2-0.100.20.30.50.60.60.60.70.60.60.60.50.40.30.1-0-0.1-0.3-0.4-0.5

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Sat -- 02:08 AM CDT     -0.24 feet Low Tide
Sat -- 05:52 AM CDT     Moonrise
Sat -- 06:42 AM CDT     Sunrise
Sat -- 02:36 PM CDT     0.94 feet High Tide
Sat -- 07:50 PM CDT     Moonset
Sat -- 08:22 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.2-0.2-0.2-0.1-00.10.30.40.60.70.80.90.90.90.90.90.90.80.70.60.50.30.1

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 Corpus Christi, TX (6,6,7,8)
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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.