Thursday, September21, 2017 L-36.com


Marine Weather and Tides
Point Comfort, 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 7:15AMSunset 7:25PM Thursday September 21, 2017 2:41 PM CDT (19:41 UTC) Moonrise 7:31AMMoonset 7:38PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 1001 Am Cdt Thu Sep 21 2017
Rest of today..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Tonight..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms early in the evening. A slight chance of showers and Thunderstorms after midnight.
Friday..Southeast 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.
Friday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Saturday..East 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.
Saturday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A slight chance of showers and Thunderstorms.
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. A chance of showers and Thunderstorms.
Sunday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A slight chance of showers and Thunderstorms.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday night..Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1001 Am Cdt Thu Sep 21 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Generally light to occasionally overnight moderate southeasterly winds over near 3 foot seas in the coming days. Weak easterly disturbances traveling into a more moist northwestern gulf environment will likely produce areawide showers and storms through the weekend.

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 211754 aab
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
1254 pm cdt Thu sep 21 2017

Discussion
Updated for 18z aviation.

Aviation
MostlyVFR conditions throughout the period at all terminals.

Expecting convection to continue to develop and impact vct this
afternoon, therefore kept the tempo group for it. A brief period
of MVFR conditions will be possible early tomorrow morning at ali,
vct and lrd mainly due to fog development. Winds will remain
gusty from the SE through the afternoon before decoupling in the
early evening hours. Winds will pick up once again Friday morning.

Previous discussion issued 645 am cdt Thu sep 21 2017
discussion...

updated for 12z aviation.

Aviation...

periodic MVFR ceilings will be possible at lrd for the next couple
of hours withVFR elsewhere. Southeast winds will increase by mid
day with gusts during the afternoon between 18 and 22 knots at
ali crp vct. Chances for showers and thunderstorms will increase
by this afternoon and have included vcts remarks and tempo tsra
at vct. Low clouds may redevelop late tonight into early Friday
morning. MVFR ceilings were added at lrd, but not confident enough
to include at the other terminals just yet.

Previous discussion... Issued 403 am cdt Thu sep 21 2017
short term (today through Friday)...

models continue to indicate that moisture will increase across
south texas today. Pw values should climb today between 1.8
and 2.0 inches over much of the area. At the same time, a weak
shortwave trough will traverse region as well. The shortwave
trough, sea breeze, and increase in moisture will result in better
chances of showers and thunderstorms today. Pops will generally
range from 20 percent over the rio grande to 40 percent over the
coastal bend into victoria crossroads. Convection should die down
between 00z and 06z over inland locations with some redevelopment
possible over the gulf waters overnight.

The upper disturbance weakens heading into Friday as upper level
ridging will build back over the area. Convection on Friday will
be confined mainly to the sea breeze and will keep a 20 in the
forecast for much of the area.

Regarding temperatures today and Friday, highs will be in the
upper 90s over the rio grande to upper 80s and low 90s over the
northern coastal bend and victoria crossroads.

Long term (Friday night through Wednesday)...

mid and upper level ridging Fri night into Sat will bring drier mid
levels across S tx. Sufficient low level moisture will remain in
place for iso shra tsra's along the sea breeze sat. Slightly deeper
moisture and better instability across the NE CWA on Sunday will
lead to a little bit better chc of convection for the vct
crossroads. Precip chcs increase through the first part of next week
as a potent upper low approaches from the west with embedded short
waves tracking NE out ahd of it and combines with deepening
moisture. The superblend output had very high pops by mid week,
however due to uncertainty with timing of short waves and how deep
the moisture will be, kept the pops at 40 percent or less for now.

Temps are progged to be slightly cooler by a degree or two the first
part of next week due to the increase in the moisture combined with
cooling of the mid upper levels as the upper low approaches tx.

Preliminary point temps pops
Corpus christi 77 92 76 92 75 20 20 20 20 20
victoria 75 91 72 91 72 20 20 10 20 20
laredo 79 98 77 98 75 10 10 10 10 10
alice 76 95 75 93 73 20 20 10 20 10
rockport 81 90 79 89 78 20 20 20 20 20
cotulla 76 97 75 96 73 20 10 10 10 10
kingsville 77 94 75 92 74 20 20 10 20 20
navy corpus 81 90 80 88 79 20 20 20 20 20

Crp watches warnings advisories
Tx... None.

Gm... None.

An 88... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 1 mi48 min S 15 G 17 86°F 86°F1012.7 hPa
SDRT2 - 8773037 - Seadrift, TX 18 mi42 min SSE 13 G 16 85°F 86°F1013 hPa (-1.4)
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 18 mi42 min S 14 G 15 85°F 86°F1013 hPa (-1.3)
MBET2 21 mi42 min S 12 G 14 85°F 85°F1012.1 hPa (-1.2)
AWRT2 31 mi42 min S 8 G 13 85°F 85°F1012.8 hPa (-1.5)
EMAT2 37 mi42 min SSE 12 G 16 85°F 86°F1013 hPa (-1.3)
CPNT2 43 mi42 min SSE 9.9 G 12 85°F 85°F

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 mi87 minSSE 11 G 1810.00 miPartly Cloudy91°F72°F56%1013.5 hPa
Palacios Municipal Airport, TX19 mi49 minSE 78.00 miLight Rain80°F75°F85%1013.4 hPa
Victoria, Victoria Regional Airport, TX22 mi51 minSSW 1210.00 miMostly Cloudy91°F73°F57%1012.5 hPa

Wind History from PKV (wind in knots)
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Last 24hrS11SE13S11
G15
------------SE6SE6--------------SE3S7S8----S11
G18
1 day agoS8S10SE11
G16
S11
G15
SE10SE9SE5SE5SE7SE9SE7S5CalmS4S4SE5------S10S9--S11
G17
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2 days agoS9S8
G14
S8S9S9SE6--SE9SE8S4S4S4------CalmSE4SE3S6S8S10S11
G14
S7S11

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
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Thu -- 04:34 AM CDT     0.74 feet Low Tide
Thu -- 07:14 AM CDT     Sunrise
Thu -- 08:30 AM CDT     Moonrise
Thu -- 10:12 AM CDT     0.95 feet High Tide
Thu -- 03:45 PM CDT     0.75 feet Low Tide
Thu -- 07:23 PM CDT     Sunset
Thu -- 08:38 PM CDT     Moonset
Thu -- 10:56 PM CDT     1.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.90.90.80.70.70.80.80.90.90.90.90.90.80.80.80.80.80.80.911.11.11.2

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Thu -- 12:45 AM CDT     0.83 feet Low Tide
Thu -- 06:41 AM CDT     0.97 feet High Tide
Thu -- 07:13 AM CDT     Sunrise
Thu -- 08:29 AM CDT     Moonrise
Thu -- 01:19 PM CDT     0.80 feet Low Tide
Thu -- 07:22 PM CDT     Sunset
Thu -- 08:37 PM CDT     Moonset
Thu -- 09:29 PM CDT     0.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.80.80.90.90.91110.90.90.90.80.80.80.80.90.90.911111

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 (15,3,4,5)
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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.