Thursday, April26, 2018 L-36.com


Marine Weather and Tides
Port Lavaca, TX

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:49AMSunset 8:02PM Thursday April 26, 2018 6:19 AM CDT (11:19 UTC) Moonrise 3:58PMMoonset 3:56AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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- 316 Am Cdt Thu Apr 26 2018
.small craft should exercise caution early this morning...
Today..North winds around 15 knots early in the morning becoming northwest 5 to 10 knots in the afternoon. Bay waters slightly choppy to choppy early in the morning becoming smooth in the afternoon.
Tonight..Northwest winds 5 to 10 knots becoming north after midnight. Bay waters smooth.
Friday..North winds 5 to 10 knots. Bay waters smooth.
Friday night..Northeast winds 5 to 10 knots becoming north after midnight. Bay waters smooth.
Saturday..Northeast winds around 5 knots becoming southeast in the afternoon. Bay waters smooth.
Saturday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday..East winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon.
Sunday night through Monday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms on Monday.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 316 Am Cdt Thu Apr 26 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Elevated offshore winds in the wake of a cold front are expected to decrease today. A lighter offshore flow can be expected tonight and Friday. With low seas over the weekend...light northeast winds become southeast. Strengthening onshore winds and building seas can be expected for much of next week.

7 Day Forecast for Marine Location Near Port Lavaca, TX
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location: 28.64, -96.6     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 260913
afdcrp
area forecast discussion
national weather service corpus christi tx
413 am cdt Thu apr 26 2018

Short term (today through Friday)
The mid-level trough continues to move east across the southern
states while the surface cold front moves further from shore. Weak
isentropic lifting across the southern brush country may lead to a
few sprinkles, but should only be brief this morning as the h85
front continues to slide further south. Surface high will build in
through today and then quickly shift east, with breezy northerly
winds this morning expected to weaken and gradually take on an
easterly component this afternoon. And with cooler and drier air
filtering into south texas, today will be one nice spring day.

Cool conditions can be felt tonight with lows dipping into the
lower 60s along the coast and across the rio grande plains, while
lows will dip into the mid to upper 50s from near tilden and east
toward the victoria crossroads.

Another frontal boundary will move through on Friday with winds
backing out of the northeast. The return moisture is rather
limited, but there may be sufficient moisture across the southern
brush country to squeeze out a few showers. Otherwise, warmer
conditions are expected for Friday, with highs in the low 80s.

Long term (Friday night through Wednesday)
A weak reinforcing ridge of high pressure will settle into mid-coast
region late Friday night into Saturday morning. This will push the
low level moisture axis into northeast mexico to near the rio
grande. Gfs ECMWF suggest a weak short wave trough will move out of
northeast mexico into south texas Saturday morning. Will keep a
slight chance of convection over the southern brush country Saturday
where the higher low level moisture will be.

An upper level ridge will move across the region Saturday night into
Sunday with the higher moisture remaining in mexico. Will keep the
forecast dry for Sunday. Onshore flow will increase on Sunday as low
pressure trough strengthens lee of the rockies in advance of the
upper trough moving into the western us. Enough moisture will return
by Monday for a slight chance of convection. An upper low is
expected to dig south through the great basin Tuesday with the low
moving out across the four corners region Wednesday. Weak
disturbances in the southwest flow aloft across mexico into south
texas could lead to better chances for convection across the
northern coastal bend into the victoria crossroads Tuesday and
Wednesday. Moderate to strong onshore flow will be possible over the
coastal waters both days.

Preliminary point temps pops
Corpus christi 78 60 83 61 83 10 10 10 10 10
victoria 78 55 83 57 82 10 0 0 10 10
laredo 79 64 82 63 83 10 10 10 10 20
alice 80 59 85 59 85 10 10 10 10 10
rockport 76 62 81 63 80 10 0 0 10 10
cotulla 79 61 83 60 84 10 10 10 10 10
kingsville 80 60 84 60 84 10 10 10 10 10
navy corpus 75 65 79 65 81 10 10 0 10 10

Crp watches warnings advisories
Tx... None.

Gm... None.

Cb 85... Short term
tmt 89... Long term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 0 mi50 min N 12 G 16 61°F 74°F1016.4 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi50 min NW 9.9 G 13 60°F 74°F1016.5 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi50 min N 18 G 21 63°F 72°F1016.3 hPa
MBET2 21 mi50 min NNE 18 G 23 62°F 74°F1014.6 hPa
AWRT2 30 mi50 min N 14 G 16 62°F 75°F1016.1 hPa
EMAT2 37 mi50 min NNW 13 G 16 60°F 75°F1015.2 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, TX4 mi25 minN 810.00 miMostly Cloudy57°F53°F86%1016.9 hPa
Palacios Municipal Airport, TX19 mi27 minN 16 G 2210.00 miA Few Clouds58°F53°F84%1016.2 hPa
Victoria, Victoria Regional Airport, TX23 mi29 minN 710.00 miMostly Cloudy56°F50°F81%1017 hPa

Wind History from PKV (wind in knots)
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Last 24hrCalmCalmCalmS6S7S8E7SE6
G9
SE11SE9S5SE9S9S8NW11SE6CalmNW8N11N9N10N10N9N10
1 day agoN4NE5CalmN4CalmNE3SE5SE4SE5NE4S4SE4SE6SE9S7S6S5S5S4E3CalmCalmCalmSE5
2 days agoN3CalmN3CalmNE7NE7NE4N5N6W7SW4NW3NW5S9S8SW9SW9SW8SW6SW3CalmCalmNE5Calm

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Thu -- 04:55 AM CDT     Moonset
Thu -- 06:49 AM CDT     Sunrise
Thu -- 12:04 PM CDT     0.62 feet Low Tide
Thu -- 04:57 PM CDT     Moonrise
Thu -- 07:38 PM CDT     1.09 feet High Tide
Thu -- 07:58 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
111110.90.90.90.80.80.70.60.60.60.70.80.9111.11.11.110.9

Tide / Current Tables for Seadrift, San Antonio Bay, Texas
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Seadrift
Click for Map
Thu -- 04:56 AM CDT     Moonset
Thu -- 06:50 AM CDT     Sunrise
Thu -- 08:42 AM CDT     0.51 feet Low Tide
Thu -- 04:58 PM CDT     Moonrise
Thu -- 07:58 PM CDT     Sunset
Thu -- 11:45 PM CDT     0.63 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.60.60.60.50.50.50.50.50.50.50.50.50.60.60.60.60.60.60.60.60.6

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Corpus Christi, TX (7,2,3,4)
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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.