Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Country Acres, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:52AMSunset 8:01PM Tuesday April 25, 2017 9:28 AM CDT (14:28 UTC) Moonrise 5:29AMMoonset 6:20PM Illumination 0% Phase: New Moon; Moon at 29 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- 338 Am Cdt Tue Apr 25 2017
.small craft should exercise caution...
Today..South wind 15 to 20 knots. Bays choppy.
Tonight..South wind 20 to 25 knots decreasing to 15 to 20 knots after midnight. Bays choppy to occasionally rough.
Wednesday..Southwest wind 15 to 20 knots becoming west 10 to 15 knots in the afternoon. Bays choppy.
Wednesday night..Northwest wind 10 to 15 knots shifting northeast after midnight. Bays slightly choppy to occasionally choppy.
Thursday..East wind 10 to 15 knots shifting southeast in the afternoon. Bays slightly choppy to occasionally choppy.
Thursday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Friday..South wind 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Bays choppy.
Friday night..Southeast wind around 20 knots. Bays choppy to occasionally rough.
Saturday..South wind 15 to 20 knots. Bays choppy.
Saturday night..Southeast wind 15 to 20 knots. Bays choppy. A chance of showers and Thunderstorms.
GMZ200 338 Am Cdt Tue Apr 25 2017
Synopsis for the middle texas coastal waters.. Onshore flow will continue to increase across the waters today...becoming strong by late morning...as low pressure deepens over the southern plains. The strong southerly flow will continue for most of tonight...before weakening on Wednesday ahead of a frontal boundary. Winds will briefly shift northerly Wednesday night behind the cold front, but return to a moderate onshore flow by Thursday. Late in the week winds and seas may increase ahead of another cold front.

7 Day Forecast for Marine Location Near Country Acres, TX
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location: 27.91, -97.14     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 251141 aaa
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
641 am cdt Tue apr 25 2017

Discussion
See aviation discussion for 12z tafs.

Aviation
Goes-r fog imagery is showing the clouds with CIGS between 1500
and 2500 feet (mainly) to be moving or already over the eastern
terminals. Thus, have MVFR CIGS going eastern terminals but some
breaks possible kcrp as there are some thin-ness in the cover
here. Farther west, will keep the tempo MVFR CIGS as last couple
of fog imagery shows some clouds developing along the rio grande.

Vsbys are 10sm, so removed any mention of fog. Winds increase as
MVFR clouds dissipate and/or raise during the day over the eastern
terminals, with winds diminishing by early afternoon at klrd with
passage of surface boundary. Winds also weaken later in the
afternoon at kali for the same boundary. Should haveVFR all
terminals AOA 19z (kvct last one to goVFR) with breezy south
winds. Except at kvct where temp/dew point depressions are
expected to not be large after sunset (like other terminals), will
delay the MVFR CIGS until after 06z (it will be before 06z at
kvct). Winds stay up too, delaying MVFR conditions. Winds taper
off late, with winds shifting west at klrd before end of terminal
forecast.

Previous discussion /issued 410 am cdt Tue apr 25 2017/
short term (today through Wednesday)...

unseasonably warm days are expected the next couple of days, as a
deep upper trough moves across the southern plains well north of
south texas. This upper trough will do two things for us however.

First it will dry-slot the area and bring subsident downslope
southwest winds to the area today, resulting in very warm
temperatures. Expecting temperatures 100f or more near the rio
grande today, with 90s most areas near and west of highway 77
(victoria being an exception). Breezy eastern areas with lower winds
but very dry air out to the west. The windy areas will be too humid
while the dry areas will have too weak winds for any critical fire
weather conditions today. Am going with a consensus forecast for
highs today, with adjustments closer to the coast.

Warm tonight with 70s nearly everywhere (upper 60s near cotulla), as
winds in the boundary layer bring good mixing (ergo no fog) and then
clouds develop overnight. A weak "frontal" boundary (surface high
around 1007 mb - not that impressive) will bring subsident westerly
winds on Wednesday, with no rain and warm temperatures even near the
coast due to the adiabatic warming. Again near 100f over some of the
rio grande areas, with nearly all but the immediate coast seeing 90f
or more. Could have some elevated fire weather conditions on
Wednesday out to the west for a few hours, with moderate winds and
afternoon humidity in the teens.

Marine (today through Wednesday)...

will extend the SCA to all but the northern bays today and most of
tonight. Winds in some areas may not reach SCA until later this
morning, but with sca's already up over the southern gulf waters
will not get too cute with the advisory. Based on SCA gfe tool, will
have SCA for the southern bays until 09z, with the SCA for the
gulfmex through 15z Wednesday, which may have to be extended later
over the next couple of shifts if need be. No rainfall in the
forecast.

Long term...

frontal boundary pushes away from the region Wednesday night with
temperatures a couple of degrees cooler across south texas. Will
refrain from using the word cooler... Considering temps will still
max out in the mid 90s east to upper 80s west. Lower dewpoints early
in the day will begin to climb as onshore flow sets back in by
Thursday afternoon.

After a short lived shift to northwesterly flow above the surface,
southerly slow returns Thursday night pumping in very warm air over
the region. This will result in a return to highs at or above 100
out west by Friday. 850 mb temps quickly returning to 23-25c over
the rio grande plains. Highs east will be in the 90s over much of
the rest of south texas.

Next cold front looking a bit stronger with most recent runs, with
some timing differences, but a general Sunday night passage is
expected. Ahead of the front Saturday afternoon could see a
weakening of the cap in northeast zones with a slight chance of
showers and thunderstorms. Models (especially gfs) becoming a bit
more vigorous with pops Saturday night. Will go with a slight chance
to low end chance pop area wide with some cooling expected in the
mid levels. At this point looks like a fair cool down Sunday and
Monday with highs in the lower to mid 80s.

Drier and gradually warming temperatures expected by Tuesday.

Preliminary point temps/pops
Corpus christi 91 74 98 64 86 / 0 0 0 10 0
victoria 87 73 94 57 86 / 10 10 10 10 0
laredo 101 73 101 63 96 / 0 0 0 0 0
alice 98 72 97 60 91 / 0 0 0 10 0
rockport 87 75 94 66 84 / 0 10 10 10 0
cotulla 99 69 96 59 93 / 0 0 0 0 0
kingsville 97 73 98 62 89 / 0 0 0 10 0
navy corpus 87 75 93 69 85 / 0 10 10 10 0

Crp watches/warnings/advisories
Tx... None.

Gm... Small craft advisory until 10 am cdt Wednesday for the following
zones: coastal waters from port aransas to matagorda ship
channel out 20 nm... Waters from port aransas to matagorda
ship channel from 20 to 60 nm.

Small craft advisory until 4 am cdt Wednesday for the following
zones: bays and waterways from baffin bay to port aransas.

Small craft advisory until 10 am cdt Wednesday for the following
zones: coastal waters from baffin bay to port aransas out
20 nm... Waters from baffin bay to port aransas from 20 to
60 nm.

Gw/86... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTAT2 - 8775237 - Port Aransas, TX 6 mi40 min SSE 9.9 G 19 77°F 76°F1004.6 hPa
MIST2 7 mi73 min S 16 76°F 1005 hPa71°F
ANPT2 7 mi40 min SE 18 G 21 75°F 76°F
PTAT2 - Port Aransas, TX 7 mi28 min SSE 20 G 23 76°F 75°F1004.4 hPa (+0.3)71°F
RCPT2 - 8774770 - Rockport, TX 9 mi40 min S 16 G 22 76°F 75°F1004.1 hPa
CPNT2 15 mi40 min SSE 13 G 16 75°F 74°F
TAQT2 - 8775296 - Texas State Aquarium, TX 15 mi40 min 76°F 76°F1003.5 hPa
MAXT2 - Mission-Aransas Reserve, TX 16 mi88 min 11 76°F 1005 hPa (+0.0)69°F
NUET2 19 mi40 min S 13 G 22 74°F1004.2 hPa
PACT2 - 8775792 - Packery Channel, TX 20 mi40 min SSE 13 G 22 77°F 74°F1004.6 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 23 mi40 min SE 21 G 24 76°F 76°F1004.8 hPa
AWRT2 28 mi46 min S 13 G 19 75°F 74°F1004.5 hPa
IRDT2 31 mi40 min SSE 16 G 22 76°F 74°F1005 hPa
SDRT2 - 8773037 - Seadrift, TX 41 mi40 min SE 17 G 19 76°F 73°F1004.7 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 45 mi40 min ESE 15 G 18 76°F 73°F1004.6 hPa

Wind History for Port Aransas, TX
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Last
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SE6
G9
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G12
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G12
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G14
SE11
G15
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G16
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N14
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G21
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NW7
G16
N13
NW9
G15
N8
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N6
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SE5
G8
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G26
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G28
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G24
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N13
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G20
N17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mc Campbell, TX4 mi33 minS 16 G 2110.00 miFair79°F70°F76%1004.4 hPa
Port Aransas, Mustang Beach Airport, TX7 mi33 minS 15 G 1910.00 miFair77°F70°F79%1004.7 hPa
Rockport Aransas County Airport, TX13 mi35 minSSE 10 G 1910.00 miFair78°F69°F74%1004.7 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX17 mi32 minSSE 14 G 2110.00 miMostly Cloudy79°F72°F79%1004.3 hPa
Corpus Christi, Corpus Christi International Airport, TX21 mi37 minSSE 1710.00 miMostly Cloudy76°F71°F85%1004.1 hPa

Wind History from TFP (wind in knots)
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Last 24hrSE5E6E5S6
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S8S8S8S7S11
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1 day agoN17
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N12N6NE7NE5NE12NE5NE6NE8NE9NE8NE4CalmNE7NE6E7
2 days agoS8SE5E6SE5SE8
G16
SE8SE7E6NE20
G25
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G26
N14
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G30
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G24
N14
G23
N16
G26
NE14
G19
N10N11N17
G20
N14
G18

Tide / Current Tables for Port Aransas, Texas
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Port Aransas
Click for Map
Tue -- 03:06 AM CDT     1.19 feet High Tide
Tue -- 06:28 AM CDT     Moonrise
Tue -- 06:53 AM CDT     Sunrise
Tue -- 09:37 AM CDT     0.83 feet Low Tide
Tue -- 02:15 PM CDT     1.08 feet High Tide
Tue -- 07:19 PM CDT     Moonset
Tue -- 07:59 PM CDT     Sunset
Tue -- 09:03 PM CDT     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.911.11.21.21.110.90.90.80.80.90.911.11.110.80.70.50.40.40.40.5

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Tue -- 12:09 AM CDT     0.00 knots Slack
Tue -- 03:38 AM CDT     0.99 knots Max Flood
Tue -- 06:28 AM CDT     Moonrise
Tue -- 06:53 AM CDT     Sunrise
Tue -- 09:25 AM CDT     -0.00 knots Slack
Tue -- 12:11 PM CDT     -0.16 knots Max Ebb
Tue -- 02:07 PM CDT     0.00 knots Slack
Tue -- 03:07 PM CDT     0.08 knots Max Flood
Tue -- 03:58 PM CDT     -0.00 knots Slack
Tue -- 07:19 PM CDT     Moonset
Tue -- 07:59 PM CDT     Sunset
Tue -- 08:28 PM CDT     -0.97 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-00.30.60.910.80.60.40.20-0-0.1-0.2-0.1-00.1-0-0.3-0.6-0.8-1-0.9-0.8-0.6

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 (10,2,3,4)
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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.