Wednesday, November14, 2018 L-36.com


Marine Weather and Tides
Port Aransas, 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 6:49AMSunset 5:38PM Wednesday November 14, 2018 1:19 PM CST (19:19 UTC) Moonrise 12:37PMMoonset 11:40PM Illumination 42% Phase: First Quarter Moon; Moon at 7 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- 1209 Pm Cst Wed Nov 14 2018
Rest of today..Northwest wind around 10 knots. Bays slightly choppy.
Tonight..North wind 5 to 10 knots shifting northwest after midnight. Bays smooth to slightly choppy.
Thursday..Northwest wind 5 to 10 knots shifting southwest in the afternoon. Bays smooth.
Thursday night..South wind around 5 knots shifting southwest after midnight. Bays smooth.
Friday..West wind up to 5 knots becoming southeast in the afternoon. Bays smooth.
Friday night..Southeast wind 5 to 10 knots. Bays smooth.
Saturday..Southeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy.
Saturday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers.
Sunday..Southeast wind around 10 knots. Bays slightly choppy. A chance of showers.
Sunday night..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers.
GMZ200 1209 Pm Cst Wed Nov 14 2018
Synopsis for the middle texas coastal waters.. Northerly flow and seas will continue to gradually diminish through Thursday, as high pressure settles into east texas. Light and variable winds developing in Thursday afternoon as high pressure moves into the waters. Onshore flow will resume on Friday, as a surface high pressure continues move east and across the waters. Onshore flow will increase to near moderate levels over the weekend, with an increase in moisture. A frontal boundary will approach the waters on Sunday night with winds shifting to the east overnight. The combination of a coastal trough and the boundary, along with increased instability and moisture, will result in the chance for showers Sunday into Sunday night.


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 141730 aac
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
1130 am cst Wed nov 14 2018

Discussion
See .Aviation discussion for 18z tafs.

Aviation
Clear skies with northerly winds less than 11 knots for the most
part, becoming light and variable tonight and weak westerly (weak
s in klrd) in the morning with few to scattered sunrise cirrus on
Thursday.

Previous discussion issued 848 am cst Wed nov 14 2018
discussion...

will allow freeze warning to expire and at this time do not plan
on a freeze warning for tonight, based on forecast and new
temperature data coming in, which does not show large-area
freezes and the dew points are a bit too high for that. Will keep
monitoring if things change. New updates coming out shortly. A few
minor changes to the first period, based on observations
(temperatures, winds and sky cover). Did not mess with forecast
after today, as not much going on and anyway to warrant it.

Marine...

will end the SCA for the northern nearshore at 15z and for the
remainder of the gulf waters at 18z. This is based on current
observations and forecast trends. Coastal forecast will be issued
at its normal time.

Previous discussion... Issued 507 am cst Wed nov 14 2018
discussion...

updated for 12z aviation.

Aviation...

vfr conditions will continue over the next 24 hours with little in
the way of cloud cover. Northwest winds around 10 knots during the
day will become light and variable overnight.

Previous discussion... Issued 433 am cst Wed nov 14 2018
short term (today through Thursday)...

cold conditions are occurring across south texas early this
morning. Temperatures are mainly in the 30s with upper 20s across
la salle county. Freezing temperatures remain possible inland through
the early morning hours due to the clear skies and light winds
across the area. Will continue with the wind chill advisory for
inland parts of the coastal counties despite marginal winds.

Quiet weather will be in store for the short term part of the
forecast. After a cold start to the day, temperatures will climb
into the 50s under mostly sunny skies. Another cold night is
expected tonight across south texas. Lows again will dip into the
30s with some pockets of freezing temperatures possible. Locations
across northern parts of the area would be most likely to
experience another freeze. However, will not issue another freeze
watch or warning at this time and will defer to the next shift.

Temps begin to rebound on Thursday as winds become more southerly.

Highs will be in the lower to middle 60s.

Long term (Thursday night through Tuesday)...

the upper level trough that brough us the strong front this week
will continue to shift eastward into the tennessee ohio valley with
a zonal flow developing aloft through the weekend. Surface high
pressure will also be moving east across the coastal waters on
Friday, and dry conditions are expected to persist across south
texas through Saturday. Moisture will increase across the region
over the weekend with a return to an onshore flow and a developing
coastal trough to our southeast. Another cold front is progged to
move across the area late on Sunday with showers expected to develop
ahead and along the boundary. Rain chances will be on the rise
through the weekend, with the higher rain chances expected on Sunday
through Monday morning. The combination of plentiful gulf moisture
and weak forcing will provide for at least some isolated
thunderstorms Sunday night through Tuesday. Beyond this time frame
models are progging another upper level system and a disturbance
across the area, but models continue to disagree on timing and
location. For now went conservative on my pops until models are in
better agreement, but seems like rainy and stormy weather is in
store for south texas through the middle of next week.

One more chilly night is expected across the region Thursday night,
before temperatures gradually increase over the weekend. Low
temperatures on Thursday night will be in the upper 30s to lower
40s, increasing to the upper 40s to 50s range through next week.

Highs will generally be in the 60s to 70s range through the period.

Marine...

strong offshore flow will continue across the gulf waters this
morning and a small craft advisory remains in effect through
midday. Winds and seas will decrease later today with light and
variable winds by Thursday afternoon. A return to an onshore flow
is expected on Friday as a surface high pressure continues to
move eastward over the weekend. A coastal trough will also develop
across the area later in the weekend, with an increase in
moisture and rain chances across the marine zones Sunday through
Tuesday. Winds will increase to moderate levels and shift to the
east late in the weekend with an approaching cold front from the
north. Winds will remain at moderate levels trough next week.

Preliminary point temps pops
Corpus christi 57 36 64 41 69 0 0 0 0 0
victoria 54 32 61 40 68 0 0 0 0 0
laredo 60 37 65 42 69 0 0 0 0 0
alice 57 34 65 40 69 0 0 0 0 0
rockport 55 41 62 45 68 0 0 0 0 0
cotulla 58 34 65 39 69 0 0 0 0 0
kingsville 58 34 64 40 70 0 0 0 0 0
navy corpus 56 44 62 50 68 0 0 0 0 0

Crp watches warnings advisories
Tx... None.

Gm... Small craft advisory until noon cst today 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... Waters from port aransas to matagorda ship channel
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 0 mi37 min NNE 8.9 G 12 47°F 54°F1032.1 hPa
PTAT2 - Port Aransas, TX 1 mi19 min NNW 14 G 16 48°F 63°F1031.5 hPa (-3.1)22°F
ANPT2 2 mi31 min NW 15 G 17 47°F 1031 hPa
RCPT2 - 8774770 - Rockport, TX 13 mi37 min WSW 8.9 G 13 49°F 1031.8 hPa
PACT2 - 8775792 - Packery Channel, TX 17 mi37 min NW 7 G 8 47°F 48°F1032.4 hPa
TAQT2 - 8775296 - Texas State Aquarium, TX 17 mi31 min 50°F 61°F1031.1 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 20 mi37 min WNW 8.9 G 12 48°F 61°F1032 hPa
NUET2 22 mi37 min NNW 9.9 G 11 53°F1032.2 hPa
IRDT2 28 mi37 min 47°F 52°F1032.7 hPa
AWRT2 30 mi37 min NNE 8.9 G 16 46°F 51°F1031.7 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 42 mi37 min WNW 12 G 15 49°F 51°F1032.5 hPa
SDRT2 - 8773037 - Seadrift, TX 44 mi37 min WNW 8.9 G 13 47°F 51°F1031.7 hPa
KMZG 47 mi24 min NE 18 G 25 48°F 32°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 mi44 minNNW 1210.00 miFair49°F25°F40%1032.8 hPa
Mc Campbell, TX9 mi44 minN 9 G 1410.00 miFair53°F23°F33%1032.2 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX16 mi83 minN 810.00 miA Few Clouds51°F28°F43%1033.2 hPa
Rockport Aransas County Airport, TX17 mi86 minN 910.00 miFair50°F26°F39%1033.3 hPa
Corpus Christi, Corpus Christi International Airport, TX23 mi28 minNW 9 G 1610.00 miA Few Clouds54°F28°F37%1031.8 hPa

Wind History from RAS (wind in knots)
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Last 24hrNW20
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NW16NW16N15N13N14N10N9NW11N11NW9NW13N13NW11NW9NW11NW10N11N12N12N14N12N11N10
1 day agoNW26
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2 days agoN14N14N14N15N11N15
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N8N7W3W4SW3SW6SW5SW7SW4SW4SW4NW8NW12NW13NW19N14N17

Tide / Current Tables for Aransas Channel, Texas
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Aransas Channel
Click for Map
Wed -- 06:48 AM CST     Sunrise
Wed -- 12:37 PM CST     Moonrise
Wed -- 12:50 PM CST     0.34 feet Low Tide
Wed -- 05:36 PM CST     Sunset
Wed -- 10:09 PM CST     1.66 feet High Tide
Wed -- 11:40 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.61.51.51.41.31.21.10.90.80.60.40.40.30.40.50.70.91.11.41.51.61.71.6

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Wed -- 04:06 AM CST     -0.00 knots Slack
Wed -- 06:48 AM CST     Sunrise
Wed -- 11:31 AM CST     -1.24 knots Max Ebb
Wed -- 12:37 PM CST     Moonrise
Wed -- 05:16 PM CST     0.00 knots Slack
Wed -- 05:36 PM CST     Sunset
Wed -- 09:38 PM CST     1.38 knots Max Flood
Wed -- 11:40 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.210.70.40-0.3-0.5-0.6-0.7-0.9-1.1-1.2-1.2-1.1-0.9-0.6-0.4-0.10.30.71.11.31.41.3

Weather Map and Satellite Images
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wmap_A
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.
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Wind Forecast for Corpus Christi, TX (14,3,4,5)
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Ground Weather Radar Station Corpus Christi, TX
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Gulf Stream Current


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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.