Friday, January19, 2018 L-36.com


Marine Weather and Tides
Port Lavaca, 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 7:19AMSunset 5:58PM Friday January 19, 2018 5:28 AM CST (11:28 UTC) Moonrise 9:01AMMoonset 8:24PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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- 359 Am Cst Fri Jan 19 2018
Today..East winds 10 to 15 knots. Bay waters slightly choppy. Patchy fog. A chance of showers and isolated Thunderstorms.
Tonight..Southeast winds 10 to 15 knots becoming south after midnight. Bay waters slightly choppy. Patchy fog. A chance of showers.
Saturday..South winds 10 to 15 knots. Bay waters slightly choppy. Patchy fog in the morning. Areas of fog in the afternoon. A chance of showers.
Saturday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. Areas of fog. A slight chance of showers.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. Areas of fog. A slight chance of showers.
Sunday night..South winds 10 to 15 knots becoming southwest after midnight. Bay waters slightly choppy. Areas of fog. A chance of showers in the evening. Isolated Thunderstorms. Showers likely after midnight.
Monday..Northwest winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers in the morning.
Monday night..North winds 5 to 10 knots. Bay waters smooth.
Tuesday..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Tuesday night..Northeast 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 359 Am Cst Fri Jan 19 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Winds will gradually veer to the southeast today and strengthen in response to a developing coastal trough near the lower texas coast. This system will help to enhance the chances for showers and isolated Thunderstorms the next few days. The return of onshore winds will also bring increased moisture and warmer temperatures through the weekend. This pattern will be favorable for the development for sea fog starting tonight and persisting into Sunday evening, when the next cold front is expected to push off the coast.

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 191012
afdcrp
area forecast discussion
national weather service corpus christi tx
412 am cst Fri jan 19 2018

Short term (today through Saturday)
Water vapor imagery shows the mid level low southeast of san
antonio with the trough axis extending southwest into northern
coahuila. Shower activity has increased over the northern coastal
bend into the victoria crossroads in advance of this low. The mid
level low is expected to move east toward the upper texas coast
this afternoon and into northern louisiana this evening with the
upper trough axis hanging back along the middle texas coast.

A coastal trough is expected to be quasi-stationary over the coastal
waters to near matagorda bay today through tonight and then weaken
Saturday. Isentropic upglide will be strong over the coastal plains
today in the 290-300k layer. This will lead to scattered to
numerous showers over this area, with precipitation chances
quickly diminishing to the west over the western brush country
today. Instability will develop along and east of the coastal
trough. Isolated to scattered thunderstorms are expected over the
gulf waters today into tonight. Enough elevated instability to the
west of the coastal trough could lead to isolated thunderstorms
over the coastal counties today. With cloud cover and coastal
trough remaining to the east, do not anticipate warming to be as
strong as mav guidance suggests except near the rio grande where
clouds may clear late this afternoon. Went closer to the met for
highs today.

Region of isentropic lift will move to the east tonight with best
rain chances over the gulf waters. With light winds and saturated
boundary layer, patchy fog expected to form after midnight and
become areal toward daybreak over much of south texas into the
near shore waters.

A short wave ridge will be moving into the area Saturday with
temperatures rising to slightly above normal levels except along
the coast. Cool shelf bay waters along with light onshore flow
will lead to cool temperatures along the coast. Patchy sea fog
could persist during the afternoon as well.

Marine (today through Saturday)
A stronger pressure gradient along and east of the coastal trough
will lead to scec conditions over the offshore waters today. This
may even strengthen this evening to SCA levels over the offshore
waters north of port aransas. Showers along with isolated to
scattered thunderstorms are expected to increase during the
morning into this afternoon over the coastal waters. The gradient
will weaken on Saturday with a weak onshore flow expected. Areas
of fog will be possible over the bays near shore waters late
tonight into Saturday morning and possibly persisting into the
afternoon.

Long term (Saturday night through Thursday)
Areas of sea fog across the bays and nearshore waters and patchy fog
along the coastal counties are expected to develop Saturday night as
dewpoints increase across cool seas. Rain chances will also be on
the increase through Sunday due to the increasing low level moisture
and approaching upper long wave trough. A cold front is progged to
move through S tx Sunday evening through Mon morning. This will also
provide low level moisture convergence for producing showers with a
slight chc of tsras across the vct area where CIN is lowest and cape
is highest, as well as best diffluence aloft strongest omega.

Drier cooler conditions will filter into S tx through Mon with rain
chcs ending from west to east. Mostly sunny skies are expected mon
afternoon and most of Tue along with pleasant temps generally in the
60s. Onshore flow returns Tue afternoon bringing clouds back across
s tx ahead of the next system. This will also bring rain chcs back
to eastern portions of S tx. The system is progged to move across
the region wed. This will bring reinforcing sfc high pressure to
western portions of S tx with a coastal trough developing and
maintaining a slight chc of precip across the eastern CWA wed.

Slight chc of rain continues through the latter part of next week as
onshore flow returns and increases moisture back into the area.

Preliminary point temps pops
Corpus christi 51 48 68 62 76 60 20 10 10 30
victoria 50 50 69 60 75 60 40 20 20 40
laredo 57 43 73 58 77 10 0 0 10 10
alice 49 45 71 60 79 50 10 10 10 30
rockport 52 51 65 60 71 70 30 10 10 30
cotulla 52 41 72 57 76 10 10 10 10 10
kingsville 50 46 70 60 79 60 10 10 10 30
navy corpus 52 51 65 62 72 70 30 10 10 20

Crp watches warnings advisories
Tx... None.

Gm... None.

Tmt 89... Short term
te 81... Long term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 0 mi41 min NNE 6 G 8 42°F 41°F1024.5 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi41 min N 8.9 G 12 44°F 44°F1024.2 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi41 min NE 15 G 17 46°F 48°F1023.9 hPa
MBET2 21 mi41 min ENE 12 G 14 44°F 49°F1022.8 hPa
AWRT2 30 mi41 min NNE 11 G 13 44°F 42°F1023.8 hPa
EMAT2 37 mi41 min NNE 8 G 12 42°F 44°F1024.2 hPa

Wind History for Port OConnor, TX
(wind in knots)    EDIT      (on/off)   Help
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N11
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N21
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G24
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NE14
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N12
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N11
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N10
NE8
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NE11
2 days
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N32
G39
N34
G41
N33
N30
N31
G38
N28
G37
N27
N25
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N24
G30
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G30
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G24
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G23
N25
N24
G30

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX4 mi34 minNNE 810.00 miOvercast41°F37°F88%1025.1 hPa
Palacios Municipal Airport, TX19 mi36 minNE 1010.00 miOvercast44°F39°F85%1024.9 hPa
Victoria, Victoria Regional Airport, TX23 mi38 minN 69.00 miLight Rain38°F34°F86%1025.4 hPa

Wind History from PKV (wind in knots)
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Last 24hrNE7N7N6NE7NE9NE10NE10NE8NE8NE7NE9NE9NE8NE8NE8NE8N7NE7NE7NE8NE4N6N7N7
1 day agoN10
G15
N10N10N9N8N9NE12N7
G14
N10NE8N8NE8NE7N6N4NW3N3N3N5N4N3NE4NE5N6
2 days agoN22
G32
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G34
N19
G32
N24
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G29
N17
G25
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G27
N18
G24
N18
G21
N15
G20
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G22
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G21
N12N12N10
G14
N12
G16
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G17
N12
G16
N12N13
G18
N12
G17
N14
G18
N12
G18
N8

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Fri -- 01:49 AM CST     0.38 feet High Tide
Fri -- 07:19 AM CST     Sunrise
Fri -- 09:00 AM CST     Moonrise
Fri -- 03:21 PM CST     -0.62 feet Low Tide
Fri -- 05:55 PM CST     Sunset
Fri -- 08:24 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.40.40.30.30.20.20.1-0-0.1-0.3-0.4-0.5-0.6-0.6-0.6-0.5-0.4-0.3-0.1-00.10.2

Tide / Current Tables for Seadrift, San Antonio Bay, Texas
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Seadrift
Click for Map
Fri -- 07:19 AM CST     Sunrise
Fri -- 09:00 AM CST     Moonrise
Fri -- 10:27 AM CST     -0.26 feet High Tide
Fri -- 05:55 PM CST     Sunset
Fri -- 08:24 PM CST     Moonset
Fri -- 09:27 PM CST     -0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.4

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.