Thursday, June21, 2018 L-36.com


Marine Weather and Tides
Port Aransas, TX

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:32AMSunset 8:29PM Thursday June 21, 2018 12:04 AM CDT (05:04 UTC) Moonrise 1:46PMMoonset 1:16AM Illumination 53% Phase: First Quarter Moon; Moon at 8 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- 1028 Pm Cdt Wed Jun 20 2018
Rest of tonight..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Showers likely and isolated Thunderstorms.
Thursday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Showers likely in the morning. Isolated Thunderstorms. A chance of showers in the afternoon.
Thursday night..Southeast wind 5 to 10 knots. Bays smooth. A slight chance of showers and Thunderstorms.
Friday..South wind 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Friday night..South wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Saturday..South wind 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Bays choppy.
Saturday night..South wind 15 to 20 knots. Bays choppy.
Sunday..South wind 15 to 20 knots. Bays choppy.
Sunday night..Southeast wind 15 to 20 knots. Bays choppy. A slight chance of showers and Thunderstorms.
Monday..Southeast wind around 15 knots. Bays slightly choppy to 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.
GMZ200 1028 Pm Cdt Wed Jun 20 2018
Synopsis for the middle texas coastal waters.. Tropical moisture will continue to filter into the region tonight as a coastal trough gradually moves farther inland. As a result, periods of showers and Thunderstorms can be expected again tonight into Thursday morning. Scattered showers and isolated Thunderstorms will be possible again on Thursday, with a moderate southeast wind. Showers and Thunderstorms will taper off Thursday evening with quiet conditions expected Friday and Saturday. A moderate onshore flow is expected over the weekend. Deeper moisture will move back into the region Sunday into Monday with a chance of showers and storms returning to the middle texas coastal waters.

7 Day Forecast for Marine Location Near Port Aransas, TX
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location: 27.84, -97.07     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 210026 aaa
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
726 pm cdt Wed jun 20 2018

Discussion
Updated for the 00z aviation discussion.

Aviation
Not many changes other than lowering CIGS to at least MVFR through
the overnight. Expecting moderate to heavy showers on and off
through the period, although rain chances should be decreasing
between 18z thurs - 00z fri. Any shras may allow for vsbys to drop
ifr to possibly lifr at times. For now, will maintain at least
vcsh through the end of the TAF period as moisture remains very
sufficient for isolated to scattered activity to continue during
Thursday afternoon. Will hold shra vcsh in tafs as thunder
remains few and far between. Will continue to monitor if changes
are needed.

Previous discussion issued 408 pm cdt Wed jun 20 2018
short term (tonight)...

showers and thunderstorms have been ongoing for most of the
day across south texas. The heaviest rainbands set up along
the coastal bend this morning where we saw rainfall rates of
2-4" per hour resulting in multiple flash flood warnings and a
flash flood emergency for port aransas. We have seen 5-10" fairly
widespread across eastern portions of the CWA with pockets of
rainfall approaching 15". Activity waned a bit this afternoon but
has recently begun to redevelop across the brush county and over
the gulf waters where there has been a few breaks in the clouds.

Expect showers and thunderstorms to continue through the evening
with potential for another round of heavy rainfall early
tomorrow, although this will not be as strong as what we have seen
the last couple of nights. H85 moisture transport remains
efficient through the period with an area of low level moisture
convergence setting up along the coast tonight early tomorrow
morning that will cause the uptick in activity. We are looking
at the potential for an additional 1-3" tonight through tomorrow
afternoon. Any additional rainfall will quickly lead to flash
flooding.

Low temps will be right around average tonight with lows in the
mid 70s out west to the low 80s along the coast.

Long term (Thursday through Wednesday)...

although the mid level low is expected to drift southwest into
mexico Thursday, a mid level trough axis will extend to the
northeast across coastal plains Thursday morning and slide to the
west into the brush country during the afternoon. Moisture levels
will not be near record values on Thursday but will still be plenty
high with precipitable water values from 2.3 to 2.5 inches during
the morning hours. Expect scattered showers isolated thunderstorms
to occur in convergence axis near the coastal plains on Thursday
morning with activity moving inland into the brush country in the
afternoon. Will continue with likely pops for the coastal areas
Thursday morning. Showers and storms will be capable of producing 2
to 3 inches per hour. Any rainfall over saturated grounds would lead
to flooding, so the flash flood watch has been extended to 18z
Thursday.

Rain chances will quickly diminish to only a slight chance over
southern areas for Thursday night as the mid level trough axis
continues to move southwest into mexico and moisture decreases over
the area. Will hold on to slight chance pops over the coastal areas
on Friday for possible isolated activity. An upper level ridge will
build into the region Friday into Saturday with temperatures back to
slightly above normal levels. An area of low pressure will form over
the central high plains on Saturday in advance of a weak short wave
trough. This will lead to an increase in onshore flow with winds
approaching SCA levels at times over the weekend. The ridge will
weaken by Sunday with an inverted mid level trough axis moving into
south texas. Enough moisture will arrive by Sunday for slight chance
pops. Better moisture will be in place by early next week for Monday
into Tuesday as the mid level trough axis moves inland. Will show
low end chance pops for the coastal bend Monday and Tuesday. Rain
chances will decrease slightly for Wednesday as the mid level trough
axis moves away from the region and an upper ridge builds back.

Preliminary point temps pops
Corpus christi 76 87 77 92 77 70 60 20 20 10
victoria 75 89 75 93 76 60 60 10 20 10
laredo 76 92 77 101 78 50 60 20 10 0
alice 76 90 75 96 76 60 60 20 20 0
rockport 80 88 79 89 80 70 60 20 20 10
cotulla 76 94 76 101 77 30 40 10 10 0
kingsville 77 89 77 96 77 70 60 20 20 10
navy corpus 80 87 80 87 81 70 60 20 20 10

Crp watches warnings advisories
Tx... Flash flood watch through Thursday afternoon for the following
zones: aransas islands... Bee... Calhoun islands... Coastal
aransas... Coastal calhoun... Coastal kleberg... Coastal
nueces... Coastal refugio... Coastal san patricio... Duval...

goliad... Inland calhoun... Inland kleberg... Inland nueces...

inland refugio... Inland san patricio... Jim wells... Kleberg
islands... Live oak... Nueces islands... Victoria.

Coastal flood advisory until 1 pm cdt Thursday for the following
zones: aransas islands... Calhoun islands... Coastal
aransas... Coastal calhoun... Coastal nueces... Coastal
refugio... Coastal san patricio... Kleberg islands... Nueces
islands.

High rip current risk until midnight cdt tonight for the
following zones: aransas islands... Calhoun islands...

kleberg islands... Nueces islands.

Gm... Small craft advisory until 9 pm cdt this evening 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.

Cb 85... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTAT2 - 8775237 - Port Aransas, TX 0 mi65 min E 8.9 G 14 77°F 82°F1009.6 hPa (+1.3)
PTAT2 - Port Aransas, TX 1 mi65 min E 14 G 15 78°F 82°F1009.4 hPa (+1.4)75°F
ANPT2 2 mi65 min E 12 G 14 78°F 82°F1008.7 hPa (+1.4)
PACT2 - 8775792 - Packery Channel, TX 17 mi65 min ESE 12 G 14 80°F 82°F1009.1 hPa (+1.1)
TAQT2 - 8775296 - Texas State Aquarium, TX 17 mi65 min 82°F 83°F1008.1 hPa (+1.4)
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 20 mi65 min E 12 G 14 80°F 82°F1008.5 hPa (+1.1)
MAXT2 - Mission-Aransas Reserve, TX 20 mi65 min ENE 6 1010 hPa (+1.0)
NUET2 22 mi65 min E 14 G 21 81°F1009.1 hPa (+1.4)
IRDT2 28 mi65 min E 9.9 G 11 80°F 83°F1009.4 hPa (+1.3)
AWRT2 30 mi65 min E 8.9 G 13 80°F 80°F1009.7 hPa (+1.1)
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 42 mi65 min ESE 8 G 11 79°F 82°F1009.1 hPa (+1.6)
SDRT2 - 8773037 - Seadrift, TX 44 mi65 min NE 5.1 G 6 78°F 81°F1009.9 hPa (+0.7)
KMZG 47 mi50 min S 8 G 15 81°F 79°F

Wind History for Port Aransas, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Aransas, Mustang Beach Airport, TX2 mi70 minE 14 G 185.00 miThunderstorm Fog/Mist in Vicinity77°F74°F92%1010.2 hPa
Mc Campbell, TX9 mi70 minSE 910.00 miMostly Cloudy80°F76°F89%1009.5 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX16 mi69 minESE 1010.00 miOvercast81°F78°F91%1008.7 hPa
Rockport Aransas County Airport, TX17 mi72 minE 118.00 miMostly Cloudy80°F75°F87%1009.9 hPa
Corpus Christi, Corpus Christi International Airport, TX23 mi74 minESE 710.00 miOvercast79°F79°F100%1009 hPa

Wind History from RAS (wind in knots)
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Last 24hrSE16
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G31
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S6SW6SE9S10S8SW7S4SE6E11E11E13SE10E13E8E12E12
G18
1 day agoSE22SE16
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2 days agoS10S9S8S5S6S4SE3CalmNE5E8E4NE5N4CalmCalmCalmSE4S8S9SE10SE11SE12SE12SE17
G21

Tide / Current Tables for Port Aransas, Texas
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Port Aransas
Click for Map
Thu -- 02:16 AM CDT     Moonset
Thu -- 04:46 AM CDT     0.33 feet Low Tide
Thu -- 06:32 AM CDT     Sunrise
Thu -- 10:29 AM CDT     0.69 feet High Tide
Thu -- 02:45 PM CDT     Moonrise
Thu -- 06:19 PM CDT     0.18 feet Low Tide
Thu -- 08:27 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.40.40.40.30.30.40.40.50.60.70.70.70.60.50.40.30.20.20.20.30.40.40.5

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Thu -- 01:00 AM CDT     -0.16 knots Max Ebb
Thu -- 02:15 AM CDT     Moonset
Thu -- 05:40 AM CDT     0.00 knots Slack
Thu -- 06:32 AM CDT     Sunrise
Thu -- 10:35 AM CDT     0.80 knots Max Flood
Thu -- 02:24 PM CDT     -0.00 knots Slack
Thu -- 02:45 PM CDT     Moonrise
Thu -- 06:44 PM CDT     -0.83 knots Max Ebb
Thu -- 08:27 PM CDT     Sunset
Thu -- 10:20 PM CDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.2-0.1-0.1-0-000.10.30.60.80.80.60.30.1-0.1-0.4-0.6-0.8-0.8-0.7-0.5-0.10.2

Weather Map and Satellite Images
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wmap_A
GOES Local Image of SouthCentralPlains    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Corpus Christi, TX (1,6,7,8)
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Ground Weather Radar Station Corpus Christi, TX
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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.