Thursday, February21, 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 6:59AMSunset 6:23PM Thursday February 21, 2019 4:23 PM CST (22:23 UTC) Moonrise 8:52PMMoonset 8:37AM Illumination 94% 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- 400 Pm Cst Thu Feb 21 2019
.dense fog advisory in effect until 9 am cst Friday...
Tonight..Northeast winds 5 to 10 knots. Bay waters smooth. Patchy fog. A slight chance of showers in the evening. Isolated Thunderstorms. A chance of showers after midnight.
Friday..Northeast winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth. Patchy fog. A chance of showers and isolated Thunderstorms.
Friday night..Southeast winds 5 to 10 knots becoming south 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. Patchy fog. A chance of showers and isolated Thunderstorms.
Saturday..Southwest winds around 15 knots becoming northwest in the afternoon. Bay waters slightly choppy to choppy becoming slightly choppy in the afternoon. Patchy fog. A chance of showers and isolated Thunderstorms.
Saturday night..Northwest winds 5 to 10 knots becoming north after midnight. Bay waters smooth.
Sunday..Northeast winds 10 to 15 knots decreasing to 5 to 10 knots in the afternoon. Bay waters slightly choppy becoming smooth in the afternoon.
Sunday night..East winds 5 to 10 knots. Bay waters smooth.
Monday..East winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers.
Monday night..East winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A chance of showers and isolated Thunderstorms.
Tuesday..Northeast 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.
Tuesday night..East winds 10 to 15 knots becoming northeast 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth 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 400 Pm Cst Thu Feb 21 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Warmer onshore winds overriding the cooler shelf waters have produced areas of dense sea fog. This fog is expected to persist tonight and could linger until Saturday morning. Onshore winds will strengthen Friday night into Saturday as low pressure over the texas panhandle deepens. Another cold front will cross the coastal waters on Saturday afternoon.


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 212202
afdcrp
area forecast discussion
national weather service corpus christi tx
402 pm cst Thu feb 21 2019

Short term (tonight through Friday night)
A stationary front with a weak coastal low remains just east of
the offshore waters. Stratus persists across most of the eastern
half of the forecast area as warm, moist air moves over the cooler
low-level air mass. Patchy drizzle light rain will remain possible
tonight as the frontal boundary begins to move back toward the
coast. The front will move inland late tonight and then northward
across the region during the day Friday. Patchy fog will likely
develop along the coast after the warm front's passage, and any
fog that develops should persist through Friday night and may
spread a bit farther inland as low-level southeasterly flow
increases.

A lead shortwave trough ejecting northeast out of northern mexico
ahead of a much stronger trough currently digging into the desert
southwest should provide enough ascent for more scattered
showers. There should also be enough instability for a couple of
isolated thunderstorms Friday afternoon and into Friday night,
especially across the northern half of the forecast area. Despite
the persistent cloud cover and scattered showers, the return of
southerly flow and warm air advection should allow temperatures to
warm to near or slightly above normal levels for Friday.

Long term (Saturday through Thursday)
Long term period starts out with a cold front pushing toward the
coast. The front should be moving into the area by 12z and is
expected to blast across the area from northwest to southeast,
reaching the coast by around 9am. NAM model is a bit faster, having
it almost through the CWA by 12z, but will go with the consensus,
being just a bit slower than that. A few showers will be possible in
the east as the front approaches the coast, but moisture will be
pretty limited and not expecting too much in the way of convection.

Will have sufficient CAPE northeast to include mention of possible
thunderstorm. Fog likely to still be in place at sunrise, but will
clear quickly with frontal passage. Expect any rain chances to be
done by noon... Or earlier. Drier air filters in quickly and should
have mainly sunny skies area wide in the afternoon. Reinforcing
ridge pushes in Sunday and will kick up winds a bit, but will also
help to keep dry conditions and mainly clear skies
model guidance diverges in details for mid-week. Both ECMWF and gfs
bring moisture back on Monday as a coastal trough develops, however
the ECMWF then pushes a weak front off the coast drying conditions
out again while the GFS lingers the trough keeping the humid
conditions in place. Both models indicate rain chances for Monday
night with overrunning pattern, but ECMWF dries it out more quickly.

Will hold on to lower end pops into Tuesday, thinking more toward
gfs side. Wednesday looks dry, but by Thursday quite a bit of
difference in guidance with the GFS very wet and ECMWF less wet, but
still painting qpf. Will stick with low end pops with low confidence
this far out.

Temperature wise, near normal temperatures expected Saturday with
highs in the mid 70s. While we will slow heating behind the front on
Saturday, it's not looking like we'll have a strong push of colder
air. Cooler temperatures Sunday and Monday, mainly lower 70s, then
slightly warmer for mid-week.

Marine
Isolated to scattered showers will remain possible tonight through
early Saturday morning as a stalled frontal boundary approaches
the coast and moves inland. Isolated thunderstorms will also be
possible Friday afternoon through Saturday morning as a strong
cold front approaches. Patchy sea fog is expected to develop in
the bays and nearshore waters by Friday morning and will likely
persist through all of Friday and into Saturday morning.

The cold front will move offshore during the morning hours
Saturday, ahead of that front expect patchy fog in bays and
nearshore waters. Scec winds will be possible once the front moves
through. Another push of high pressure mid-week could bring a
moderate to strong wind once again.

Preliminary point temps pops
Corpus christi 60 73 65 78 50 20 30 20 10 0
victoria 57 72 63 75 47 30 50 40 30 0
laredo 59 75 60 77 47 20 20 10 0 0
alice 59 75 65 78 47 20 30 20 10 0
rockport 60 70 64 76 51 30 40 30 20 0
cotulla 56 73 59 74 43 20 30 30 10 0
kingsville 60 75 66 78 50 20 20 10 10 0
navy corpus 60 70 66 76 52 20 30 10 20 0

Crp watches warnings advisories
Tx... None.

Gm... None.

Cn 99... Short term
ph 83... 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 mi42 min N 14 G 16 55°F 59°F1010.6 hPa
MBET2 4 mi42 min NNE 15 G 17 56°F 66°F1009.4 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi42 min N 12 G 14 57°F 59°F1010.9 hPa
VCAT2 18 mi36 min NNE 12 G 13 55°F 58°F1010.8 hPa
AWRT2 26 mi42 min N 9.9 G 15 57°F 58°F1010.7 hPa
EMAT2 32 mi36 min NNW 13 G 15 55°F 60°F1010.4 hPa
KBQX 42 mi29 min NNE 17 57°F 57°F
RCPT2 - 8774770 - Rockport, TX 45 mi42 min 58°F 1010.1 hPa
SGNT2 47 mi36 min N 9.9 G 12

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX21 mi31 minNNE 125.00 miFog/Mist57°F55°F96%1010.9 hPa
Port Lavaca - Calhoun County Airport, TX21 mi2.1 hrsNNE 87.00 miOvercast58°F55°F90%1011.5 hPa

Wind History from PKV (wind in knots)
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Last 24hrNE7NE8----------------------------NE9NE9NE9--NE9N8N9N8
1 day agoN9------------NW8--------------------N11N11N6N10NE11N7
2 days agoNE12
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NE9NE9NE9NE16NE11N8NE8NE13N9N9NE14NE13
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Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Thu -- 04:39 AM CST     0.44 feet High Tide
Thu -- 06:58 AM CST     Sunrise
Thu -- 08:37 AM CST     Moonset
Thu -- 01:13 PM CST     -0.27 feet Low Tide
Thu -- 06:20 PM CST     Sunset
Thu -- 08:47 PM CST     0.19 feet High Tide
Thu -- 08:52 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.30.40.40.40.40.40.30.20.1-0-0.1-0.2-0.3-0.3-0.2-0.1-00.10.10.20.20.20.2

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Thu -- 12:21 AM CST     0.44 feet High Tide
Thu -- 03:07 AM CST     0.42 feet Low Tide
Thu -- 06:59 AM CST     Sunrise
Thu -- 07:36 AM CST     0.50 feet High Tide
Thu -- 08:38 AM CST     Moonset
Thu -- 04:03 PM CST     -0.17 feet Low Tide
Thu -- 06:20 PM CST     Sunset
Thu -- 08:53 PM CST     Moonrise
Thu -- 11:34 PM CST     0.34 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Corpus Christi, TX (17,4,5,8)
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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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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.