Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Seadrift, 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 7:16AMSunset 7:23PM Saturday September 23, 2017 1:06 PM CDT (18:06 UTC) Moonrise 9:22AMMoonset 8:52PM Illumination 10% 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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GMZ235 Bays And Waterways From Port Aransas To Port O'connor- 1022 Am Cdt Sat Sep 23 2017
Rest of today..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms late in the morning, then a slight chance of showers and Thunderstorms in the afternoon.
Tonight..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers after midnight.
Sunday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.
Sunday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Monday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Monday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Tuesday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Tuesday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Wednesday..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Wednesday night..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
GMZ200 1022 Am Cdt Sat Sep 23 2017
Synopsis for the middle texas coastal waters.. Isolated to scattered showers and Thunderstorms are expected through the weekend, with most of the rainfall activity occurring during the overnight and morning time frames. Weak to moderate onshore flow will persist over the weekend into next week. Rain chances will increase by early next week as an upper level disturbance moves north of the area and frontal boundary sinks southward across the state.

7 Day Forecast for Marine Location Near Seadrift, TX
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location: 28.41, -96.71     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 231744
afdcrp
area forecast discussion
national weather service corpus christi tx
1244 pm cdt Sat sep 23 2017

Discussion
Updated for 18z aviation discussion.

Aviation
Vfr conditions expected through the rest of today with scattered
clouds lingering. Winds remain generally moderate with just a few
gusts. Will keep a vcsh at vct through the afternoon. Could see a
ts but too small of a chance to include in TAF at this time. Will
amend if necessary. Expect low clouds to develop once again
overnight with CIGS possible for vct, ali and lrd. Could also see
MVFR fog overnight at ali and vct. Will maintain amd not sked for
lrd as outage of sky condition continues.

Previous discussion issued 437 am cdt Sat sep 23 2017
short term (today through Sunday)...

latest goes-16 pwat imagery shows higher plume of moisture remains
over the region with pwats of 1.7-1.9 inches. South texas will
remain under a ridge axis positioned between the deep upper level
trough over the rockies and a weak cut-off low over the southeast
us and northeast gulf of mexico. Given available moisture across
the region, expect a repeat of isolated to scattered streamer
showers moving onshore during the early morning and sea breeze
convection across the region in the afternoon. On Sunday the weak
upper low will move eastward along the northern gulf coast.

Although moisture will be slightly lower, provided the proximity
of the low, anticipate more scattered convection across the region
on Sunday, mainly across the coastal areas and victoria
crossroads.

Temperatures over the weekend will be fairly persistent, with
highs in the lowers 90s across the coastal bend to mid to upper
90s across the rio grande plains, and lows staying in the 70s
overnight.

Long term (Sunday night through Friday)...

main weather issues in the long term will be chances for showers and
thunderstorms. Moisture will remain plentiful through much of next
week with pw values generally at or slightly above 2 inches. To
start the period, large scale upper trough will be situated to the
west of the area. On Monday, shortwave trough rounding base of
trough and the sea breeze will combine to produce isolated to
scattered showers and thunderstorms over the area. The inherited 30
pops look reasonable at this time. Main upper trough ejects into the
northern plains Tuesday and great lakes on Wednesday. However, upper
low detaches from main trough and cuts off over the SW CONUS and
four corners region. An active southwest flow aloft will warrant
keeping a 40 percent chance of showers and thunderstorms in the
forecast on Tuesday. A frontal boundary will eventually move
southward across the state Wednesday and perhaps into the area on
Thursday or Thursday night. Current thinking is that rain decent
rain chances should continue Wed thu, but will not go as high as
superblend values just yet. One caveat will be how upper level ridge
behaves and whether or not it shifts back over parts of south texas.

Lingering rain chances may continue into Friday before diminishing
as drier air filters into south texas.

Regarding temperatures, highs above normal early in the period will
be set back to near or below normal as the week progresses due to
increased cloud cover and rain chances.

Preliminary point temps pops
Corpus christi 76 90 75 90 76 10 30 20 30 20
victoria 73 90 73 91 74 20 30 10 30 20
laredo 77 97 77 95 77 10 20 10 30 30
alice 74 93 73 93 74 10 30 10 30 20
rockport 78 91 79 89 79 20 30 20 30 20
cotulla 75 96 75 95 75 10 20 20 30 40
kingsville 75 93 74 93 76 10 30 20 30 20
navy corpus 79 90 79 88 80 20 30 20 30 20

Crp watches warnings advisories
Tx... None.

Gm... None.

Pz 83... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDRT2 - 8773037 - Seadrift, TX 0 mi48 min ESE 11 G 14 85°F 84°F1012.6 hPa
AWRT2 13 mi48 min ESE 8.9 G 12 85°F 83°F1012.5 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi48 min E 12 G 15 83°F 84°F1012.4 hPa
VCAT2 17 mi48 min ESE 14 G 16 83°F 84°F1012.7 hPa
MBET2 20 mi48 min ESE 14 G 16 83°F 84°F1011.5 hPa
CPNT2 26 mi48 min E 7 G 9.9 83°F 83°F
ANPT2 43 mi48 min E 12 G 13 83°F 84°F1011.3 hPa
RTAT2 - 8775237 - Port Aransas, TX 44 mi48 min E 8.9 G 12 85°F 84°F1012.3 hPa
EMAT2 47 mi48 min E 9.9 G 12 83°F 85°F1012.5 hPa

Wind History for Seadrift, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX17 mi66 minE 10 G 1510.00 miMostly Cloudy86°F74°F69%1013.2 hPa

Wind History from PKV (wind in knots)
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Last 24hrSE12
G17
E12--SE11------------------------------CalmE5E8S7E10
G15
1 day agoS11
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--S8SE14------------------------------SE5SE3E10E9SE11
2 days agoS10
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S11SE13S11
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------------SE6SE6--------------SE3S7S8----

Tide / Current Tables for Seadrift, San Antonio Bay, Texas
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Seadrift
Click for Map
Sat -- 02:27 AM CDT     0.43 feet High Tide
Sat -- 07:15 AM CDT     Sunrise
Sat -- 08:33 AM CDT     0.35 feet Low Tide
Sat -- 10:21 AM CDT     Moonrise
Sat -- 03:01 PM CDT     0.43 feet High Tide
Sat -- 07:21 PM CDT     Sunset
Sat -- 08:55 PM CDT     0.35 feet Low Tide
Sat -- 09:52 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.40.40.40.40.40.40.40.30.40.40.40.40.40.40.40.40.40.40.40.40.40.4

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Sat -- 12:34 AM CDT     0.96 feet High Tide
Sat -- 07:15 AM CDT     Sunrise
Sat -- 10:21 AM CDT     Moonrise
Sat -- 04:39 PM CDT     0.44 feet Low Tide
Sat -- 07:21 PM CDT     Sunset
Sat -- 09:51 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
110.90.90.90.80.80.80.80.80.70.70.60.60.50.50.40.40.50.50.60.70.80.9

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 (14,3,4,5)
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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.