Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Aransas Pass, 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 7:20AMSunset 7:47PM Wednesday March 29, 2017 6:03 AM CDT (11:03 UTC) Moonrise 7:38AMMoonset 8:40PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 351 Am Cdt Wed Mar 29 2017
.small craft advisory in effect until 7 am cdt this morning...
Today..South wind around 20 knots early in the morning, becoming 15 to 20 knots, then decreasing to 5 to 10 knots late in the morning, then shifting southwest early in the afternoon. Bays choppy. A chance of showers and Thunderstorms in the morning. Some Thunderstorms may produce gusty winds and small hail in the morning.
Tonight..Southeast wind 5 to 10 knots shifting south after midnight. Bays smooth.
Thursday..Northwest wind 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bays choppy to occasionally rough.
Thursday night..Northwest wind 5 to 10 knots shifting southeast after midnight. Bays smooth.
Friday..South wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy.
Friday night..Southeast wind 10 to 15 knots increasing to 15 to 20 knots after midnight. Bays choppy.
Saturday..Southeast wind around 15 knots. Bays slightly choppy to choppy.
Saturday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Sunday..Southeast wind 10 to 15 knots shifting southwest in the afternoon. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Sunday night..West wind 5 to 10 knots. Bays smooth. A slight chance of showers and Thunderstorms.
GMZ200 351 Am Cdt Wed Mar 29 2017
Synopsis for the middle texas coastal waters.. Strong south flow will rapidly weaken this morning as a surface boundary approaches the coast from the west. Weak south flow tonight will become a moderate to strong offshore flow Thursday as a cold front pushes across the area. A brief period of chances of showers and Thunderstorms will exist this morning associated with the surface boundary. Small craft advisories also remain in effect for much of today for the gulf waters due to expected prolonged hazardous seas. Moderate onshore flow will develop by late Friday...and continue Saturday and Sunday...as an upper level disturbance moves slowly southeastward across the southern rockies to texas. Scattered showers and Thunderstorms may occur Saturday night and Sunday.

7 Day Forecast for Marine Location Near Aransas Pass, TX
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location: 27.94, -97.07     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 290944 cca
afdcrp
area forecast discussion... Corrected
national weather service corpus christi tx
444 am cdt Wed mar 29 2017

Short term (today through Thursday)
The leading edge of a surface boundary /and also a gravity wave as
noted from goes-r satellite imagery/ was analyzed to be located from
kbea to just west of kali to NW of khbv to south of klrd as of
writing. Behind the boundary, elevated convection has been trying
to develop but is struggling to maintain itself due to limited
moisture depth. Better convective development may occur closer to
sunrise across the coastal plains to victoria where the moisture
depth is prog to be deeper, where instability is prog to be
greater, and where h25 difluence is prog to be a little better.

Any storms that manage to develop this morning will have the
potential to produce small hail /given the extreme elevated
instability values/ and perhaps an isolated strong wind gust.

Precip chances should quickly end by mid morning as a
significantly drier airmass overspreads most of inland S tx as the
aforementioned boundary stalls along the coast.

Temps today are likely to warm into the 90s in the afternoon given
the expected dry airmass and a weak adiabatic downsloping
component. I am a little concerned that I did not go warm enough
for the coastal counties as this synoptic setup can often lead to
incredible warming across the coastal plains. However, given the
expected strong inland warming and quasi-cool gulf ssts, the
stalled boundary should start to retreat inland in the afternoon
acting as an effective seabreeze. Thus... I have limited corpus
christi's MAX temp today to only 92 degrees rather than the mid
90s.

Near surface moisture values are likely to increase this evening
ahead of the main cold front that is prog to push south across the
region late tonight. The GFS wants to develop light showers
across the coastal plains/adjacent gulf right along/ahead of
fropa late tonight. Despite impressive dynamical features aloft
/95 to 100 kt h25 jet streak and deep h5 trough/ moisture depth
limited to only the lowest 100mb as well as a thin layer around
h5 should preclude any precip development.

Nnw winds should increase late tonight with breezy conditions
possible around sunrise thurs. Mostly sunny skies with low
relative humidity values and temps near seasonable levels should
make for a nice day on Thursday.

Long term (Thursday night through Tuesday)
The deterministic solutions generally agree with regard to the
timing/position of the next upper disturbance... Moving sewd across
the rockies Friday then slowly approaching tx from the nw
Saturday... Moving across tx Sunday/Sunday night... Then lifting newd.

Increasing onshore flow expected over the cwa/msa given the
foregoing upper pattern. At least scec conditions expected over the
coastal msa Friday night through early Sunday. GFS deterministic
predict pwat values to increase to near/above normal values Saturday
over the ERN cwa/msa. The combination of upper forcing/moisture will
contribute to at least isolated/scattered convection Saturday
night/Sunday. Strong convection possible given GFS deterministic
cape/vertical shear. Drier conditions expected Monday/Tuesday.

Marine Strong southeast flow should rapidly weaken this
morning. Seas, however, may be slow to respond and the small craft
advisory has been extended through much of today for the gulf
waters to account for the hazardous seas. A brief window for
chances of showers or a storm will exist this morning and early
afternoon. A cold front will push south across area waters late
tonight into Thursday morning bringing a brief period of strong
north flow in its wake.

Preliminary point temps/pops
Corpus christi 92 61 82 58 86 / 40 10 10 0 0
victoria 88 57 79 55 85 / 50 10 10 0 0
laredo 92 61 86 60 97 / 0 0 0 0 0
alice 94 58 84 56 90 / 20 10 0 0 0
rockport 86 60 79 61 80 / 40 10 10 0 0
cotulla 91 56 84 56 94 / 0 0 0 0 0
kingsville 96 59 84 57 90 / 20 10 0 0 0
navy corpus 88 63 79 63 81 / 40 10 10 0 0

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

Gm... Small craft advisory until 4 pm cdt this afternoon 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.

Small craft advisory until 7 am cdt this morning for the
following zones: bays and waterways from baffin bay to port
aransas... Bays and waterways from port aransas to port
o'connor.

Small craft advisory until noon cdt today 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.

Rh/79... Short term
wc/87... Long term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCPT2 - 8774770 - Rockport, TX 6 mi45 min S 12 G 19 75°F 78°F1004.8 hPa
RTAT2 - 8775237 - Port Aransas, TX 7 mi45 min WNW 8.9 G 12 73°F 72°F1006.5 hPa
MIST2 7 mi108 min SSE 16 74°F 1005 hPa71°F
PTAT2 - Port Aransas, TX 8 mi63 min SSE 17 G 19 73°F 73°F1003.7 hPa (-0.0)69°F
CPNT2 12 mi45 min SW 6 G 9.9 74°F 76°F
MAXT2 - Mission-Aransas Reserve, TX 13 mi63 min 8 75°F 1007 hPa (+2.0)70°F
TAQT2 - 8775296 - Texas State Aquarium, TX 19 mi45 min 76°F 76°F1005 hPa
NUET2 23 mi45 min SW 9.9 G 14
PACT2 - 8775792 - Packery Channel, TX 23 mi45 min W 6 G 8 74°F 75°F1006.1 hPa
AWRT2 25 mi51 min SW 1 G 8 73°F 77°F1006.1 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 26 mi45 min S 9.9 G 15 74°F 74°F1005.8 hPa
IRDT2 34 mi45 min S 5.1 G 9.9 74°F 76°F1005.5 hPa
SDRT2 - 8773037 - Seadrift, TX 37 mi45 min SSE 9.9 G 17 76°F 76°F1006.5 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 48 mi45 min ESE 14 G 18 74°F 75°F1003.7 hPa
KMZG 49 mi28 min SSE 11 G 23 75°F 68°F

Wind History for Rockport, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mc Campbell, TX8 mi68 minS 11 G 2210.00 miFair74°F70°F89%1004.1 hPa
Port Aransas, Mustang Beach Airport, TX9 mi68 minSSE 12 G 155.00 miFog/Mist72°F68°F90%1004.1 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX21 mi67 minS 107.00 miOvercast74°F72°F94%1004 hPa

Wind History from TFP (wind in knots)
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W5
1 day agoSE4S6SE3E4SE4E5SE6SE5SE8E11SE10
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2 days agoS10
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SE4SE6SE3CalmNE5E4

Tide / Current Tables for Rockport, Aransas Bay, Texas
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Rockport
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Wed -- 01:14 AM CDT     0.09 feet Low Tide
Wed -- 07:21 AM CDT     Sunrise
Wed -- 08:37 AM CDT     Moonrise
Wed -- 10:03 AM CDT     0.22 feet High Tide
Wed -- 01:36 PM CDT     0.21 feet Low Tide
Wed -- 05:22 PM CDT     0.22 feet High Tide
Wed -- 07:44 PM CDT     Sunset
Wed -- 09:40 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.10.10.10.10.10.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.10.1

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Wed -- 01:33 AM CDT     0.00 knots Slack
Wed -- 05:21 AM CDT     0.93 knots Max Flood
Wed -- 07:21 AM CDT     Sunrise
Wed -- 08:38 AM CDT     Moonrise
Wed -- 10:39 AM CDT     -0.00 knots Slack
Wed -- 01:05 PM CDT     -0.21 knots Max Ebb
Wed -- 04:07 PM CDT     0.00 knots Slack
Wed -- 04:43 PM CDT     0.01 knots Max Flood
Wed -- 05:15 PM CDT     -0.00 knots Slack
Wed -- 07:44 PM CDT     Sunset
Wed -- 09:40 PM CDT     Moonset
Wed -- 10:15 PM CDT     -0.84 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.10.10.50.80.90.90.70.50.30.1-0-0.2-0.2-0.2-0.1-00-0.1-0.3-0.6-0.8-0.8-0.8

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 (7,2,3,4)
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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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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.