Tuesday, June19, 2018 L-36.com

Marine Weather and Tides
Rockport, 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 Tuesday June 19, 2018 12:43 PM CDT (17:43 UTC) Moonrise 11:48AMMoonset 12:00AM Illumination 38% Phase: Waxing Crescent; Moon at 6 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- 1011 Am Cdt Tue Jun 19 2018
Rest of today..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of Thunderstorms late in the morning. Rain showers. Thunderstorms in the afternoon.
Tonight..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Showers and a chance of Thunderstorms.
Wednesday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Showers and Thunderstorms.
Wednesday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Thursday..Southeast wind around 10 knots. Bays slightly choppy. A chance of showers and Thunderstorms.
Thursday night..Southeast wind around 10 knots. Bays slightly choppy. A chance of showers and Thunderstorms.
Friday..South wind 5 to 10 knots. Bays smooth. A slight chance of showers and Thunderstorms.
Friday night..South wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Saturday..South wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Saturday night..South wind around 15 knots. Bays slightly choppy to choppy.
GMZ200 1011 Am Cdt Tue Jun 19 2018
Synopsis for the middle texas coastal waters.. Tropical moisture will continue today, as a coastal trough gradually moves farther inland through Wednesday. As a result, periods of showers and Thunderstorms can be expected today through Wednesday. With the trough moving inland, winds and wave heights will begin to decrease later this afternoon to below small craft advisory conditions. Scattered showers will develop again on Thursday, with a light to moderate southeast wind. Showers and Thunderstorms will taper off on Thursday evening, with only isolated to scattered showers and Thunderstorms possible through the rest of the week.

7 Day Forecast for Marine Location Near Rockport, TX
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location: 27.99, -97.07     debug

Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 191528
area forecast discussion
national weather service corpus christi tx
1028 am cdt Tue jun 19 2018

The biggest change this morning was to expand the flash flood
watch to include duval county. Radar estimates show totals ranging
from 2-4" across the eastern brush country. Depending on the
placement of the heaviest rainfall this afternoon and tonight, the
watch may be expanded to include webb county but will hold off on
it for now.

The heaviest rainfall, so far this morning, has been observed
across jim wells. The alice airport was received just over 9
inches as of 10 am. There have been reports of road closures and
summer school closing across the area. We have seen additional
rainfall of 2-4" across much of south texas and are still
expecting additional rainfall throughout the day and continue into

Due to increasing winds across the nearshore waters, went ahead
and extended the small craft advisory through this afternoon.

Conditions should begin to subside throughout the day over the
waters but will extend if needed.

Previous discussion issued 642 am cdt Tue jun 19 2018

see .Aviation discussion for 12z tafs.


convection on-going will last a few hours over the eastern
terminals, with mainly seeing showers but could have some thunder.

The first few hours of the forecast is based on current radar
trends, then generally going with a blend of persistence
(convection waning in the afternoon then develop later tonight
eastern terminals) as well as model omega fields. Once again,
should see mainlyVFR conditions outside of thunder, with MVFR if
not ifr conditions with the heavier rains. Did include rain
overnight at kcrp and kvct with no rainfall expected farther west
overnight (andVFR conditions). Generally am expecting east to
southeast winds today, more southeast during the late
morning afternoon then backing overnight. Could have some variable
winds proximate or in convection.

Previous discussion... Issued 419 am cdt Tue jun 19 2018
short term (today through Wednesday)...

this will be short and sweet, given the on-going heavy rainfall in
portions of the area. Overall, the potential for heavy rainfall
will continue through Wednesday, with gradual lowering of rain
chances afterwards. Based on NWS qpf rainfall average amounts
through Wednesday, have issued a ffa (did that around 1 am this
morning) for all but the western four counties in the CWA where
given the drier conditions the soils should be able to handle. Ffa
is through Wednesday afternoon, and later shifts can decide if it
will be extended in time or in areal coverage. Could once again
see some 90s along the rio grande today as well as Wednesday,
perhaps a bit farther east given that the rain chances may begin
to diminish later in the afternoon. Overall, did a blend of raw
guidance, superblend and short blend guidance for temperatures
today through Wednesday, nudging them up a degree or so over a
few areas for today and tonight.

Other things going on is the potential for high rip currents
through most of tonight. Have kept the coastal flood advisory
too, and based on the expected rainfall amounts near the coast
through tonight, have decided to extend it for tonight. Reasoning
is that, given the minor tidal overflow combined with the heavy
rainfall near the coast, some access roads could become flooded
and possibly some people could be isolated and cut off. In short,
not the best of days to go to the beach today and tonight. Things
will get better with time so avoid going to the beach until things
settle down.

Marine (today through Wednesday)...

based on the forecast wave heights and winds, have decided to end
the SCA for the nearshore by 15z and for the offshore at 22z.

Scattered to widespread rain and thunderstorms, mainly today and
diminishing later in the afternoon, but likely developing again
especially near, north and east of port aransas tonight. Rain
should taper off by late Wednesday.

Long term (Wednesday night through Monday)...

moderate to heavy rainfall will continue into Wednesday night, with
high moisture and the upper level low inverted trough over the
region. Confidence though has gone down a bit in the amount of
showers storms that will occur on Thursday. The GFS more quickly
shifts this system further south and west away from south texas,
while the ECMWF keeps a closed low over the region and a surface
coastal trough over the region longer through Thursday morning
before also shifting to the southwest. Still anticipating rainfall
to occur on Thursday, but given discrepancies and lack of confidence
in how much moisture will still be over the region, have lowered
down to chance pops for the daytime on Thursday. Rainfall will
quickly tapper off Thursday night into Friday. Over the weekend
conditions will remain fairly dry, with only an isolated seabreeze
storm possible near the coastal areas.

More mildly warm temperatures will occur on Thursday with highs in
the mid 80s to low 90s. As rain clears the area temperatures will
begin to warm up again, with highs back in the 90s to near 100
degrees over the weekend into early next week.

Preliminary point temps pops
Corpus christi 85 77 87 77 88 90 70 70 50 50
victoria 82 77 85 75 89 90 80 80 50 50
laredo 92 76 93 77 92 60 50 50 30 30
alice 86 76 89 76 91 80 60 70 50 50
rockport 84 78 85 79 87 90 80 80 50 50
cotulla 89 75 92 76 94 70 50 50 30 20
kingsville 87 77 89 77 90 80 60 70 50 50
navy corpus 85 80 86 79 86 90 80 80 50 50

Crp watches warnings advisories
Tx... Flash flood watch through Wednesday 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.

High rip current risk through late tonight for the following
zones: aransas islands... Calhoun islands... Kleberg
islands... Nueces islands.

Coastal flood advisory until 7 am cdt Wednesday for the
following zones: aransas islands... Calhoun islands...

kleberg islands... Nueces islands.

Gm... Small craft advisory until 5 pm cdt this afternoon for the
following zones: coastal waters from baffin bay to port
aransas out 20 nm... Coastal waters from port aransas to
matagorda ship channel out 20 nm... 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.

Tc 95... Short term

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTAT2 - 8775237 - Port Aransas, TX 10 mi43 min SE 8.9 G 13 82°F 84°F1009.8 hPa (-0.3)
MAXT2 - Mission-Aransas Reserve, TX 10 mi43 min SE 8.9 1011 hPa (+0.0)
PTAT2 - Port Aransas, TX 11 mi43 min SSE 15 G 17 81°F 83°F1009.7 hPa (+0.0)77°F
ANPT2 11 mi43 min SSE 14 G 15 81°F 85°F1008.9 hPa (+0.0)
TAQT2 - 8775296 - Texas State Aquarium, TX 21 mi43 min 80°F 85°F1008.4 hPa (-0.4)
AWRT2 22 mi49 min SE 14 G 19 80°F 82°F1010.2 hPa
NUET2 25 mi43 min SSW 7 G 8 82°F1009.5 hPa (-0.4)
PACT2 - 8775792 - Packery Channel, TX 26 mi43 min SSE 12 G 19 82°F 82°F1009.8 hPa (+0.0)
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 29 mi49 min SE 19 G 21 81°F 83°F1009 hPa
SDRT2 - 8773037 - Seadrift, TX 35 mi49 min E 15 G 19 81°F 82°F1010.4 hPa
IRDT2 38 mi43 min ESE 15 G 18 82°F 83°F1009.9 hPa (+0.0)
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 48 mi49 min SSE 16 G 20 79°F 83°F1010.6 hPa
MBET2 49 mi43 min S 19 G 21 79°F 87°F1009.8 hPa (+0.0)

Wind History for Rockport, TX
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rockport Aransas County Airport, TX7 mi50 minSSE 12 G 188.00 miOvercast82°F75°F79%1009.8 hPa
Mc Campbell, TX9 mi48 minS 12 G 1610.00 miMostly Cloudy85°F76°F77%1009.5 hPa
Port Aransas, Mustang Beach Airport, TX12 mi68 minSSE 1110.00 miOvercast82°F75°F82%1010.2 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX24 mi1.8 hrsS 1110.00 miOvercast85°F77°F77%1009.5 hPa

Wind History from RKP (wind in knots)
Last 24hrNE6CalmNE3E6SE7SE10S6S7S6S7S5SE12
1 day agoSE7SE8SE11SE13SE10SE12SE12SE10SE8SE9SE7SE8S10S5NW3CalmCalmE3NE6CalmE4E8E7E5
2 days agoSE13SE14E17SE17SE18SE16SE18

Tide / Current Tables for Rockport, Aransas Bay, Texas
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Tue -- 12:59 AM CDT     Moonset
Tue -- 05:19 AM CDT     0.03 feet Low Tide
Tue -- 06:31 AM CDT     Sunrise
Tue -- 12:47 PM CDT     Moonrise
Tue -- 08:25 PM CDT     0.21 feet High Tide
Tue -- 08:27 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
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Tue -- 12:31 AM CDT     -1.30 knots Max Ebb
Tue -- 12:58 AM CDT     Moonset
Tue -- 05:41 AM CDT     0.00 knots Slack
Tue -- 06:32 AM CDT     Sunrise
Tue -- 09:51 AM CDT     1.46 knots Max Flood
Tue -- 12:47 PM CDT     Moonrise
Tue -- 04:17 PM CDT     -0.00 knots Slack
Tue -- 07:02 PM CDT     -0.45 knots Max Ebb
Tue -- 08:26 PM CDT     Sunset
Tue -- 09:08 PM CDT     -0.37 knots Min Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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GOES Local Image of    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 (13,3,4,5)
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Ground Weather Radar Station Corpus Christi, TX
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Gulf Stream Current

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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.