Tuesday, November20, 2018 L-36.com


Marine Weather and Tides
Point Comfort, 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 6:54AMSunset 5:33PM Tuesday November 20, 2018 7:53 AM CST (13:53 UTC) Moonrise 4:09PMMoonset 4:08AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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- 322 Am Cst Tue Nov 20 2018
.small craft should exercise caution this morning...
Today..North winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bay waters choppy becoming slightly choppy in the afternoon.
Tonight..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday..Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers. A slight chance of Thunderstorms late in the afternoon.
Wednesday night..Northeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of Thunderstorms early in the evening. A chance of showers.
Thursday..Northeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers.
Thursday night..East winds 5 to 10 knots. Bay waters smooth.
Friday..Southeast winds 5 to 10 knots becoming west in the afternoon. Bay waters smooth. A chance of showers.
Friday night..Northwest winds 5 to 10 knots. Bay waters smooth.
Saturday..West winds around 5 knots becoming south in the afternoon. Bay waters smooth.
Saturday night..South winds 5 to 10 knots. Bay waters smooth.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 322 Am Cst Tue Nov 20 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate offshore winds and elevated seas can be expected today. The elevated northeast winds will continue for the next couple days. A couple of disturbances will move across the area and will lead to unsettled weather Wednesday afternoon through Thursday morning and again on Friday. Winds will swing around to the south on Saturday. Current forecast has a strong cold front moving through the waters on Sunday.


7 Day Forecast for Marine Location Near Point Comfort, TX
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location: 28.65, -96.6     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 201144 aaa
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
544 am cst Tue nov 20 2018

Discussion See aviation section for 12z tafs.

Aviation Ceilings continue to lift across south texas as drier
air in the lower levels deepens with push of cooler air into the
region. MVFR ceilings will continue south of a line from cot to
ali to crp through 15-16z withVFR ceilings to the north. Clearing
of low clouds will advance southward through the vct area by 16z
and the northern coastal bend by 18z where clearing is expected
to stall, while cirrus moves across the region. Ceilings are
expected to lift toVFR for the southern coastal bend after 16z
while ceilings will remain around 3 kft at lrd through the
afternoon. Ceilings are expected to lower to MVFR from 08-10z
across southern areas while clouds will move back into the vct
area shortly after daybreak on Wednesday.

Previous discussion issued 425 am cst Tue nov 20 2018
short term (today through Wednesday)...

moisture continues to override the shallow cool air mass over the
region with the cold front well offshore. Light rain along the
coast of the southern coastal bend early this morning is
associated with weak isentropic lift in the 300-305k layer. This
region of lift light precipitation will move into the coastal
waters for the morning hours. Satellite imagery shows a short wave
trough over central texas moving to the east-southeast.

Subsidence in the wake of this short wave trough will lead to
clearing skies over the northern part of the forecast area later
this morning into early afternoon. But clouds are expected to stay
over the southern counties. With limited sunshine in these areas,
high temperatures will be a category lower for southern counties
compared to the northern counties. North winds will be moderately
strong today as high pressure continues to build into the region.

An upper low west of northern baja california early this morning
will move east across northern mexico today and be near far west
texas early Wednesday morning. The low will open into a short wave
trough as it reaches southwest texas Wednesday afternoon. As this
upper trough approaches from the west, a coastal trough will
develop along the lower texas coast late tonight and sharpen as
it moves into the coastal waters of the middle texas coast on
Wednesday. Clouds will slowly advance back to the north later
tonight and cover most of south texas except for possibly the
victoria area. Isentropic lift will increase in the 295-305k layer
through the day Wednesday. Scattered showers will form over the
coastal waters and the coastal bend early Wednesday morning and
spread northward across the rest of the coastal plains by the
afternoon. With cloud cover and precipitation, highs will only be
in the 50s again except for around 60 along the coast.

Marine...

high pressure steadily building into south texas today will keep a
moderate to strong offshore flow over the offshore waters through
mid afternoon with moderate north winds over the rest of the
marine areas. Small craft advisory in effect until 21z for the
offshore waters with scec conditions elsewhere. Isolated light
showers will move across the gulf waters this morning before drier
air moves into the region from the north. A coastal trough will
develop along the lower texas coast late tonight and move into the
coastal waters on Wednesday. Scattered showers will develop along
this boundary Wednesday affecting most marine areas through the
afternoon. A moderate northeast to east wind is expected over the
gulf waters Wednesday as the coastal trough develops.

Moderate to strong northeast winds are expected Wednesday night with
possible scas for the gulf waters. Weak to moderate flow will return
for Thursday night and persist through Saturday night ahead of the
next front.

Long term (Wednesday night through Monday)...

chances for showers rain will gradually diminish from west to east
Wednesday night and thanksgiving Thursday as the coastal trough
lifts to the northeast with the mid-level shortwave. Cool and drier
conditions are expected overland for thanksgiving under mostly
cloudy skies. Lingering light rain may remain possible mainly across
the gulf waters Thursday night.

In the meantime, a longwave trough moving into the west coast
Wednesday night will make its way to the central plains Friday
pushing the associated surface front into south texas. Models have
come into some alignment with timing, with the GFS leaning more
toward previous ECMWF runs, and currently move the front through
south texas and gulf waters on Friday and Friday night. Moisture
will be rather limited but a few showers may be possible across the
eastern CWA especially along the boundary itself. This front is not
expected to bring cooler weather but more of a drier airmass and
light to breezy northerly winds. Temperatures for Friday are
expected to reach into the 70s. Rain chances are expected to greatly
drop by Friday night in wake of the boundary.

Surface high pressure behind the boundary will quickly move east
across the region with south to southeast wind resuming by Saturday
night. Meanwhile, the next mid-level low trough will move in across
the pacific northwest and reach the southern high plains Saturday
night, deepening an area of low pressure. This trough will bring the
associated cold front through south texas on Sunday. Moisture will
again be limited, but a few showers may be possible for portions of
the coastal bend and adjacent gulf waters. Cooler and drier air is
expected behind this front, with highs for Monday in the 60s.

Preliminary point temps pops
Corpus christi 60 50 60 51 65 10 10 50 40 10
victoria 64 42 59 49 65 0 0 50 40 10
laredo 59 49 55 48 64 10 10 20 20 10
alice 61 47 58 49 64 10 10 50 30 10
rockport 61 51 60 53 65 10 10 50 50 10
cotulla 63 45 55 47 64 10 0 30 20 10
kingsville 60 48 59 50 65 10 10 50 40 10
navy corpus 61 54 62 55 67 10 10 60 40 10

Crp watches warnings advisories
Tx... None.

Gm... Small craft advisory until 3 pm cst this afternoon for the
following zones: waters from baffin bay to port aransas
from 20 to 60 nm... Waters from port aransas to matagorda
ship channel from 20 to 60 nm.

Tmt 89... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 1 mi35 min NNE 14 G 18 49°F 53°F1024.9 hPa
SDRT2 - 8773037 - Seadrift, TX 18 mi35 min N 7 G 12 49°F 55°F1025.5 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 18 mi35 min N 17 G 21 50°F 53°F1024.6 hPa
MBET2 21 mi35 min NE 18 G 22 51°F 65°F1023.1 hPa
AWRT2 31 mi35 min N 15 G 22 51°F 55°F1024.8 hPa
EMAT2 37 mi35 min N 13 G 15 48°F 56°F1023.8 hPa
RCPT2 - 8774770 - Rockport, TX 49 mi35 min WNW 7 G 15 51°F 1025.1 hPa

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX4 mi58 minN 1010.00 miOvercast50°F42°F75%1025.1 hPa
Palacios Municipal Airport, TX19 mi60 minN 1210.00 miMostly Cloudy49°F44°F83%1024.5 hPa
Victoria, Victoria Regional Airport, TX22 mi62 minN 710.00 miPartly Cloudy47°F39°F77%1025.3 hPa

Wind History from PKV (wind in knots)
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2 days agoCalmCalmCalmSE8E12E10E10E10SE9E7E6E6SE7SE5SE5E3CalmE3E5E5E3NE5NE5Calm

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Tue -- 01:56 AM CST     0.93 feet Low Tide
Tue -- 04:05 AM CST     0.94 feet High Tide
Tue -- 04:08 AM CST     Moonset
Tue -- 06:52 AM CST     Sunrise
Tue -- 12:26 PM CST     0.54 feet Low Tide
Tue -- 04:08 PM CST     Moonrise
Tue -- 05:30 PM CST     Sunset
Tue -- 09:12 PM CST     1.15 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.90.90.90.90.90.90.90.80.70.60.60.50.50.60.70.80.911.11.11.21.11.1

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Tue -- 01:32 AM CST     0.84 feet High Tide
Tue -- 04:07 AM CST     Moonset
Tue -- 06:51 AM CST     Sunrise
Tue -- 10:08 AM CST     0.51 feet Low Tide
Tue -- 04:08 PM CST     Moonrise
Tue -- 05:30 PM CST     Sunset
Tue -- 07:14 PM CST     0.98 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.80.80.80.80.70.60.60.50.50.50.60.60.70.80.90.911110.90.9

Weather Map and Satellite Images
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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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Wind Forecast for Corpus Christi, TX (8,2,3,4)
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Ground Weather Radar Station Corpus Christi, TX
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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.