Tuesday, January22, 2019 L-36.com


Marine Weather and Tides
Aransas Pass, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:18AMSunset 6:02PM Tuesday January 22, 2019 7:11 AM CST (13:11 UTC) Moonrise 7:58PMMoonset 8:37AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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- 325 Am Cst Tue Jan 22 2019
.small craft should exercise caution today...
.small craft advisory in effect from late tonight through Wednesday morning...
Today..South wind 15 to 20 knots. Bays choppy. A slight chance of showers.
Tonight..South wind 10 to 15 knots becoming northwest 25 to 30 knots after midnight. Bays rough to occasionally very rough. A chance of showers in the evening, then showers and a slight chance of Thunderstorms after midnight.
Wednesday..North wind 20 to 25 knots becoming northwest 15 to 20 knots in the afternoon. Bays choppy to rough. A chance of showers in the morning, then a slight chance of showers in the afternoon.
Wednesday night..North wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy.
Thursday..East wind around 5 knots shifting southeast in the afternoon. Bays smooth.
Thursday night..East wind around 5 knots shifting northeast after midnight. Bays smooth to slightly choppy.
Friday..Northeast wind around 10 knots shifting east in the afternoon. Bays slightly choppy.
Friday night..Southeast wind 5 to 10 knots. Bays smooth.
Saturday..Southeast wind 5 to 10 knots shifting east in the afternoon. Bays smooth. A chance of showers.
Saturday night..North wind 5 to 10 knots increasing to 10 to 15 knots after midnight. Bays slightly choppy to occasionally choppy. A chance of showers.
GMZ200 325 Am Cst Tue Jan 22 2019
Synopsis for the middle texas coastal waters.. Strong onshore flow will weaken this afternoon, however seas will remain rough. A strong cold front will push through the middle texas coastal waters overnight with very strong offshore flow and gale force gusts likely behind it. Showers and possibly a Thunderstorm are also expected with the frontal passage. Winds are expected to decrease Wednesday afternoon and night. Cooler and drier conditions will then prevail through Thursday night. Offshore flow and seas will slowly subside Wednesday night and become onshore by Thursday afternoon. A weak but dry cold front will move through on Friday with a weak to moderate northeast to east flow developing. Southeast winds return by Friday night ahead of a another system on Saturday, which will lead to increased chances of isolated to scattered showers. A weak to moderate north wind is expected behind the front Saturday night.


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 221139
afdcrp
area forecast discussion
national weather service corpus christi tx
539 am cst Tue jan 22 2019

Discussion
Updated for 12z aviation discussion.

Aviation
Vfr conditions continue this morning across all of south texas.

Still think we should see some brief MVFR CIGS mid to late morning
as moisture continues to increase. A very strong LLJ overhead is
also leading to llws at most airports. Morning sounding recorded
49kt at 2kft and 51kt at 3600ft. This LLJ will lead to gusty
conditions at the surface developing mid to morning as these
winds begin to mix to the surface. Gusty conditions will persist
through much of the afternoon with mainlyVFR conditions... Except
for MVFR CIGS at vct. Vct may also see a few showers during the
day. Other terminals will have rain chances develop later this
evening and persist through the night as a strong cold front moves
through. MVFR CIGS will be expected for most sites again. Strong
northerly winds will develop behind the front with CIGS lifting.

Prev discussion issued 401 am cst Tue jan 22 2019
short term (today through Wednesday)...

plenty of activity to talk about in the short term period today.

We'll start with strong southerly flow expected today, especially
along the coast. A 40-45kt LLJ is currently drifting eastward
across south texas. By mid-morning expect this wind to be mixing
down... And will likely still be over coastal counties. Holding off
on a wind advisory at this point due mainly to the short duration
of the strongest winds expected. Will likely see wind gusts above
30 mph between about 9 and 11 am with some gusts around 40 mph
possible. By mid-day, the LLJ will shift east of the area and
should bring down gusts a bit.

Once this LLJ moves out, we'll turn our attention to a cold front
that is currently just moving into texas from the northwest. With
a continued moist flow ahead of the front expect pwat values to
increase to between 1 and 1.5 inches ahead of the front, which is
well above normal for this time of year. Will maintain high pops,
especially along the coast and into the marine areas. Farther
west, chance to slight chance pops will continue. Best chance for
rain will be after about 9pm, though there is a slight chance
today and this evening northeast. Expect mainly shower activity
with limited cape, however can't rule out an isolated
thunderstorm if the front can provide enough lift. Front will move
through south texas after midnight, and should be to the coast by
around 3am. Upper level trough associated with this front is a
bit slower to move through, with rain chances lingering behind the
front. All of south texas should be dry with clear or clearing
skies by mid-day.

Behind the front, expect windy conditions to develop. Wind speeds
will likely approach wind advisory criteria again on the islands
and coastal counties Wednesday morning. Conditions will improve by
the afternoon. Strong CAA will keep temperatures in the 50s for
highs Wednesday.

Long term (Wednesday night through Tuesday)...

the extended period remains pretty active with a series of cold
fronts expected to move through the region. Rain chances will
continue to diminish Wednesday evening as drier air filters into the
region in the wake of a cold front. Clear skies and continued caa
will result in cold night Wednesday with lows dropping into the low
30s across the northern areas to the low to mid 40s along the coast.

A widespread freeze is not expected, however a few locations will
likely reach freezing, especially in low-lying areas across the
victoria crossroads and northern brush country.

Onshore flow will resume on Thursday, which will allow for moisture
to slowly return to the region. A weak cold front slide through
Friday, but rain chances will be limited due to the lack of
significant moisture and forcing. A slight wind shift can be
expected as winds will turn more east northeast. Deeper moisture
will return to the area on Saturday (pwats 1-1.25"). This will lead
to increases chances for isolated to scattered showers, mainly
across the eastern cwa. It's worth noting that the euro has been the
wettest of the models as it develops a much stronger upper level
system. The 12z run yesterday developed a h5 low but has since cut
back on the strength with the 00z run reverting back to an open
wave. To add to the active cycle, another front is progged to slide
through the area Tuesday, which will once again lead to increased
rain chances across south texas.

Marine...

moderate to strong onshore flow this morning will subside later
this afternoon, however rough seas will continue, thus small craft
advisory has been extended into tonight for open waters. A strong
cold front will then move through the area late tonight into
Wednesday morning. Very strong offshore flow will develop behind
this front with gale force wind gusts possible in open waters.

Conditions will gradually improve Wednesday afternoon, however
a small craft advisory will likely be needed on the end of the
gale watch warning into Wednesday night. Moderate to strong
offshore flow will continue into early Thursday morning, with sca
conditions carrying through the night. Onshore flow will resume
Thursday evening before a dry and weak cold front moves through
Friday, which will result in a slight northeast wind shift. Winds
will veer back to the southeast Friday night allowing for moisture
to increase across the region. Isolated to scattered showers will
be possible Saturday as an upper level system slides through. In
response to the upper level system, moderate to strong northerly
winds will result in SCA conditions being met, mainly across the
offshore waters.

Preliminary point temps pops
Corpus christi 77 45 56 37 64 10 70 30 0 0
victoria 72 42 52 33 61 20 80 30 0 0
laredo 77 47 58 38 68 10 20 10 0 0
alice 80 45 57 34 65 10 60 20 0 0
rockport 71 43 52 41 61 20 80 40 0 0
cotulla 74 44 57 34 67 10 30 10 0 0
kingsville 81 47 58 34 66 10 60 30 0 0
navy corpus 72 46 55 45 62 10 70 40 0 0

Crp watches warnings advisories
Tx... None.

Gm... Gale watch from late tonight through Wednesday morning 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.

Small craft advisory until 4 am cst Wednesday 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.

Small craft advisory from 2 am to noon cst Wednesday for the
following zones: bays and waterways from baffin bay to port
aransas... Bays and waterways from port aransas to port
o'connor.

Ph 83... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCPT2 - 8774770 - Rockport, TX 6 mi42 min 64°F 1010.4 hPa
ANPT2 7 mi42 min SE 22 G 25 65°F 60°F1009.9 hPa
RTAT2 - 8775237 - Port Aransas, TX 7 mi42 min S 9.9 G 18 66°F 60°F1011.1 hPa
PTAT2 - Port Aransas, TX 8 mi72 min SSE 23 G 25 66°F 59°F1010.9 hPa (-1.7)59°F
TAQT2 - 8775296 - Texas State Aquarium, TX 19 mi42 min 64°F 58°F1009 hPa
NUET2 23 mi42 min SSE 17 G 25 58°F1010.5 hPa
PACT2 - 8775792 - Packery Channel, TX 23 mi42 min SSE 15 G 20 65°F 59°F1011.2 hPa
AWRT2 25 mi42 min S 12 G 19 64°F 58°F1011.4 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 26 mi42 min SE 20 G 22 64°F 60°F1010.5 hPa
IRDT2 34 mi42 min 64°F 59°F1011.3 hPa
SDRT2 - 8773037 - Seadrift, TX 37 mi42 min SE 16 G 19 64°F 58°F1011.6 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 48 mi42 min SSE 19 G 22 63°F 58°F1010.7 hPa
KMZG 49 mi37 min WSW 19 G 29 70°F 59°F

Wind History for Rockport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mc Campbell, TX8 mi77 minS 18 G 2410.00 miOvercast and Breezy66°F58°F75%1010.5 hPa
Port Aransas, Mustang Beach Airport, TX9 mi77 minSSE 15 G 1910.00 miOvercast65°F58°F78%1011.8 hPa
Rockport Aransas County Airport, TX10 mi79 minSSE 14 G 218.00 miOvercast65°F57°F76%1010.9 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX21 mi76 minSSE 16 G 2510.00 miMostly Cloudy66°F59°F78%1011 hPa

Wind History from TFP (wind in knots)
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1 day agoN7N8NE13NE13NE10NE8NE10NE8SE8E6S6S6SE6S3E5SE5SE5SE7SE5SE3SE3SE4CalmS3
2 days agoNW12N16
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Tide / Current Tables for Rockport, Aransas Bay, Texas
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Rockport
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Tue -- 02:59 AM CST     -0.05 feet High Tide
Tue -- 07:19 AM CST     Sunrise
Tue -- 08:36 AM CST     Moonset
Tue -- 01:55 PM CST     -0.50 feet Low Tide
Tue -- 06:00 PM CST     Sunset
Tue -- 07:58 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.1-0.1-0-0.1-0.1-0.1-0.2-0.2-0.3-0.4-0.4-0.5-0.5-0.5-0.5-0.5-0.4-0.4-0.3-0.3-0.2-0.2-0.2

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
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Tue -- 01:56 AM CST     -0.00 knots Slack
Tue -- 07:18 AM CST     Sunrise
Tue -- 08:32 AM CST     -2.26 knots Max Ebb
Tue -- 08:36 AM CST     Moonset
Tue -- 01:47 PM CST     0.00 knots Slack
Tue -- 06:00 PM CST     Sunset
Tue -- 06:09 PM CST     2.02 knots Max Flood
Tue -- 07:58 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.2-0-0.3-0.7-1.2-1.6-2-2.2-2.2-2.1-1.8-1.3-0.60.20.91.51.9221.81.61.41

Weather Map and Satellite Images
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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.
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Wind Forecast for Corpus Christi, TX (8,2,3,4)
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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.