Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Tierra Grande, 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 7:01AMSunset 8:03PM Sunday August 20, 2017 2:44 AM CDT (07:44 UTC) Moonrise 4:47AMMoonset 6:25PM Illumination 4% Phase: Waning Crescent; Moon at 28 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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GMZ230 Bays And Waterways From Baffin Bay To Port Aransas- 1002 Pm Cdt Sat Aug 19 2017
Rest of tonight..South wind 5 to 10 knots. Bays smooth.
Sunday..South wind 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy.
Sunday night..Southeast wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy.
Monday..Southeast wind 5 to 10 knots becoming east 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Monday night..Southeast wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. A slight chance of showers after midnight.
Tuesday..Southeast wind 5 to 10 knots. Bays smooth. A slight chance of showers and Thunderstorms.
Tuesday night..Southeast wind 5 to 10 knots. Bays smooth.
Wednesday..South wind up to 5 knots becoming east in the afternoon. Bays smooth. A slight chance of showers and Thunderstorms.
Wednesday night..Southeast wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Thursday..Southeast wind up to 5 knots becoming east in the afternoon. Bays smooth. A slight chance of showers and Thunderstorms.
Thursday night..Southeast wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
GMZ200 1002 Pm Cdt Sat Aug 19 2017
Synopsis for the middle texas coastal waters.. Weak to moderate onshore flow will continue through next week. A few isolated showers may develop across the coastal waters during the early morning hours on Sunday and again Sunday night into Monday morning. Chances for showers and Thunderstorms will increase early next week as an upper level disturbance approaches the region.

7 Day Forecast for Marine Location Near Tierra Grande, TX
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location: 27.74, -97.45     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 200507 aac
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
1207 am cdt Sun aug 20 2017

Discussion
See aviation discussion for the 06z tafs.

Aviation
Main issue will be the potential for MVFR conditions eastern
terminals. Previous forecast has some tempo MVFR conditions over
the eastern terminals and, looking at the IR fog channel, some
very isolated MVFR clouds are in the area. May see patches of MVFR
conditions this morning and have decided to keep the MVFR CIGS for
a few hours, with MVFR br also a possibility for kali and kvct as
well. After 14z, should then seeVFR conditions all areas again.

Relatively dry airmass should preclude convection over the
terminals. Typical summertime wind pattern, with south winds
increasing and becoming SE with the passage of the sea-breeze,
then diminishing AOA 01z eastern terminals. Klrd winds will die
down early in the TAF period, then pick up late (about 21 02z) as
the boundary moves all the way toward the rio grande.

Previous discussion issued 1008 pm cdt Sat aug 19 2017
discussion...

not much change to the forecast for the overnight hours. Seeing as
though the winds will continue to decrease after midnight and
there is mostly clear skies overhead with drier air above the
surface we could see patchy fog develop across the interior parts
of the coastal bend so we have added that to the forecast at this
time. Confidence is low on how thick dense it could become, just
use caution if driving through it in the morning.

Previous discussion... Issued 723 pm cdt Sat aug 19 2017
discussion...

update for 00z aviation cycle.

Aviation...

tonight... MostlyVFR. A few pockets of MVFR stratus and some
ground fog may develop in around kali kvct kcrp closer to
daybreak. Otherwise light southeasterly winds. High confidence
overall.

Sunday...VFR. A very persistence based forecast with any stratus
giving way to scattered few stratocu by late morning. Sea breeze
will move through from late morning into the mid-afternoon hours
across our terminals with some gusts upward of 20 knots. High
confidence.

Previous discussion... Issued 352 pm cdt Sat aug 19 2017
short term (tonight through Sunday night)...

the mid to upper level ridge axis will stay over the region
through the period. GOES 16 image of precipitable water shows
region of higher moisture over the western gulf of mexico to the
east-southeast of the lower texas coast. Some of this moisture
will reach the offshore waters late tonight into Sunday morning.

With adequate low level lapse rates expected, should see isolated
showers form in this area around daybreak. 12z NAM was an outlier
showing band of streamer showers closer to the coast. Not much
change is expected for temperatures during the period. With light
winds late tonight, could see some patchy fog over the inland
coastal plains. Precipitable water values up to around 2 inches
will reach the coastal waters Sunday night with isolated
thunderstorms possibly reaching the coast by daybreak Monday.

Afternoon heat index values will remain below advisory criteria
for Sunday.

Long term (Monday through Saturday)...

previously advertised tutt low continues to weaken and shear out as
it enters the western gulf while mid level ridging tries to build in
from the west. Despite the weakening, the tutt continues to draw
moisture into the western gulf, with increased rain chances early in
the week for south texas. Chances remain greatest across the open
waters and across the coastal plains Monday and Tuesday. Uncertainty
remains for the latter half of the week with the development and
progression of harvey. Latest national hurricane center advisory
continues a general westward track reaching nicaragua and honduras
around Monday, then a slight northwest track reaching the bay of
campeche Wednesday Thursday. With a broad area of weakness remaining
across the texas coast, and abundant tropical moisture moving into
the southern gulf, will continue to keep chance pops for the latter
half of the week as moisture may begin to be drawn farther north.

Continue to monitor the latest advisories from the nhc.

With an increase in rain chances and cloud coverage in the forecast,
temperatures will be able to cool down a bit. But only by a few
degrees, with temperatures returning to near seasonal normal. Highs
will continue to run in mid 90s across the coastal plains, to near
100 degrees across the brush country and rio grande plains. Heat
index values will continue to reach 105 to 109 degrees across
portions of S tx.

Preliminary point temps pops
Corpus christi 76 97 78 95 77 10 10 10 30 10
victoria 76 97 76 96 76 0 10 10 30 10
laredo 78 104 78 101 77 0 0 10 10 10
alice 74 100 74 99 74 0 10 10 20 10
rockport 80 94 80 93 80 10 10 10 30 10
cotulla 76 103 76 100 76 0 0 10 10 10
kingsville 76 99 76 98 76 0 10 10 20 10
navy corpus 82 94 82 93 81 10 10 10 30 10

Crp watches warnings advisories
Tx... None.

Gm... None.

Gw 86... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TAQT2 - 8775296 - Texas State Aquarium, TX 6 mi45 min 84°F 88°F1014.3 hPa (-0.3)
NUET2 7 mi45 min SSE 8.9 G 12 86°F1015.1 hPa (-0.4)
PACT2 - 8775792 - Packery Channel, TX 13 mi45 min SSE 5.1 G 8.9 83°F 88°F1015.3 hPa (-0.3)
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 17 mi45 min SE 8 G 8.9 83°F 85°F1014.5 hPa (-0.4)
IRDT2 19 mi45 min SSE 6 G 8 82°F 87°F1015.7 hPa (+0.0)
RTAT2 - 8775237 - Port Aransas, TX 21 mi45 min SE 5.1 G 7 83°F 87°F1015.2 hPa (-0.5)
PTAT2 - Port Aransas, TX 22 mi45 min SE 8.9 G 9.9 83°F 87°F1015.2 hPa (-0.4)78°F
MIST2 22 mi90 min SSE 8.9 84°F 1016 hPa80°F
ANPT2 23 mi45 min ESE 8.9 G 11 84°F 86°F
RCPT2 - 8774770 - Rockport, TX 29 mi45 min S 11 G 14 85°F 89°F1014.7 hPa (-0.5)
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 31 mi45 min 8 G 9.9 83°F 87°F1015.3 hPa (+0.0)
CPNT2 34 mi45 min SSE 11 G 12 85°F 87°F
MAXT2 - Mission-Aransas Reserve, TX 35 mi45 min SSE 15 1015 hPa (-1.0)
AWRT2 48 mi45 min S 8.9 G 14 84°F 86°F1014.9 hPa (-0.7)

Wind History for Nueces Bay, TX
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S9
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S7
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S10
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Corpus Christi, Corpus Christi International Airport, TX3 mi54 minSSE 610.00 miA Few Clouds81°F78°F91%1015 hPa
Robstown, Nueces County Airport, TX13 mi70 minSE 510.00 miFair82°F76°F83%1015.6 hPa
Mc Campbell, TX17 mi70 minno data10.00 miFair84°F78°F84%1015.2 hPa
Port Aransas, Mustang Beach Airport, TX20 mi70 minSSE 610.00 miFair82°F77°F85%1015.2 hPa

Wind History from CRP (wind in knots)
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Last 24hrS7S3CalmCalmCalmSE3S6S10S7S8E13
G18
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E11
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SE13SE15SE13SE12SE9SE12SE7SE8SE7S6
1 day agoSE6S4S3SE3SE5SE4S8S11S8SW8S9
G15
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2 days agoS12
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S10S8S7S5SE5S10S14
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SE9SE9SE7SE7SE6SE7

Tide / Current Tables for Nueces Bay, Texas
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Nueces Bay
Click for Map
Sun -- 04:19 AM CDT     0.03 feet Low Tide
Sun -- 05:47 AM CDT     Moonrise
Sun -- 07:02 AM CDT     Sunrise
Sun -- 04:39 PM CDT     0.36 feet High Tide
Sun -- 07:24 PM CDT     Moonset
Sun -- 08:02 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.10.100000.10.10.10.20.20.30.30.30.30.40.40.40.30.30.30.20.2

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Sun -- 12:23 AM CDT     0.00 knots Slack
Sun -- 04:26 AM CDT     1.79 knots Max Flood
Sun -- 05:45 AM CDT     Moonrise
Sun -- 07:01 AM CDT     Sunrise
Sun -- 02:03 PM CDT     -0.00 knots Slack
Sun -- 07:23 PM CDT     Moonset
Sun -- 08:01 PM CDT     Sunset
Sun -- 08:18 PM CDT     -1.82 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.30.41.11.61.81.81.71.51.310.80.50.30.10-0.2-0.6-1-1.4-1.7-1.8-1.8-1.6-1.2

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 (3,6,7,8)
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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.