Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Doyle, 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 2:15 PM CDT (19:15 UTC) Moonrise 7:40AMMoonset 8:42PM Illumination 6% 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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GMZ230 Bays And Waterways From Baffin Bay To Port Aransas- 1207 Pm Cdt Wed Mar 29 2017
Rest of today..Northeast wind 5 to 10 knots shifting south late in the afternoon. Bays smooth.
Tonight..Southeast wind 5 to 10 knots shifting south after midnight. Bays smooth.
Thursday..Northwest wind 15 to 20 knots becoming north 10 to 15 knots in the afternoon. Bays choppy to occasionally rough.
Thursday night..Northeast wind 5 to 10 knots shifting southeast after midnight. Bays smooth.
Friday..South wind 5 to 10 knots increasing to 15 to 20 knots in the afternoon. Bays choppy.
Friday night..Southeast wind 15 to 20 knots. Bays choppy.
Saturday..Southeast wind 15 to 20 knots. Bays choppy.
Saturday night..Southeast wind 15 to 20 knots decreasing to 10 to 15 knots after midnight. Bays choppy. A slight chance of showers and Thunderstorms.
Sunday..South wind around 10 knots shifting southwest in the afternoon. Bays slightly choppy. A chance of showers and Thunderstorms.
Sunday night..Northwest wind 5 to 10 knots shifting west after midnight. Bays smooth. A slight chance of showers and Thunderstorms.
GMZ200 1207 Pm Cdt Wed Mar 29 2017
Synopsis for the middle texas coastal waters.. A weak to moderate southerly flow is expected for this afternoon...however large seas are expected to persist at advisory levels across the offshore waters through the afternoon. Weak south flow tonight will become a moderate to strong offshore flow Thursday as a cold front pushes across the area. Scattered showers and isolated Thunderstorms will continue to move east across the coastal waters ending by late afternoon. 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 Doyle, TX
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location: 27.82, -97.42     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 291721
afdcrp
area forecast discussion
national weather service corpus christi tx
1221 pm cdt Wed mar 29 2017

Discussion
See aviation discussion below for the 18z taf's.

Aviation
Vfr conditions across S tx will continue through the TAF period. A
boundary and associated convection has moved offshore this
afternoon with drier conditions filtering into S tx through the
afternoon. Skies are expected to become mostly clear across the
area this afternoon with a few mid/upper level clouds overnight
developing in response to an upper level low treking east. Sfc
winds will generally be light and variable through the early
afternoon then becoming more easterly by mid/late afternoon for
ali, crp and vct as the sea breeze moves inland. A weak cold front
is expected to move through S tx late tonight and into early thu
morning resulting in a weak to moderate NW to N wind in the
morning.

Previous discussion /issued 955 am cdt Wed mar 29 2017/
discussion...

the 12z crp sounding showed a very unstable airmass, but a capping
inversion around 700mb has kept the convection generally low
topped, except around vct where the cap is weaker. The convection
that is currently draped along the coast, is expected to continue
to move E and NE across the coastal waters and exit the area over
the next couple of hours. A dryline bdry along the coast is
expected to stall along the coast or over the near shore waters
then retreat inland as a sea breeze this afternoon. West of the
bdry, dry conditions along with a W to NW wind will lead to very
warm temps today, however, temps will be tricky along the coastal
counties due to uncertainty in timing of the sea breeze. Overall,
the forecast looks on track with no major changes expected other
than to lower/remove pops once the convection has exited the area.

Previous discussion... /issued 617 am cdt Wed mar 29 2017/
discussion... Update for 12z aviation.

Aviation... Main wx impact this mrng to be from possible
convection. Convection has been struggling to dvlp overnight but
is finally getting its act together more and is likely to impact
kvct shortly after the start of the TAF period thru mid mrng.

Brief reductions in vsbys and CIGS possible along with isolated
strong wind gusts. Lower certainty exists as to whether or not
convection will reach/impact kcrp. Potential exists for convection
to dvlp/strengthen vcnty kcrp... But impacts should be brief if
they occur. Kali likely to only experience brief light/moderate
shra with klrd remaining dry. MVFR CIGS possible thru mid mrng
with mainly clear skies thereafter as significantly drier airmass
overspreads the region. Generally weak sfc winds today 5 to 10 kts
on avg.

Previous discussion... /issued 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.

Te/81... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TAQT2 - 8775296 - Texas State Aquarium, TX 2 mi46 min 81°F 76°F1007.9 hPa
NUET2 4 mi46 min E 6 G 13 78°F1008.7 hPa
PACT2 - 8775792 - Packery Channel, TX 16 mi46 min NE 5.1 G 6 76°F 76°F1008.8 hPa
RTAT2 - 8775237 - Port Aransas, TX 18 mi46 min ENE 7 G 8.9 76°F 73°F1008.8 hPa
PTAT2 - Port Aransas, TX 20 mi76 min ENE 4.1 G 5.1 72°F 73°F1009.1 hPa (-0.0)61°F
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 20 mi46 min NE 8 G 8.9 72°F 74°F1009.3 hPa
MIST2 20 mi61 min E 6 75°F 1010 hPa64°F
RCPT2 - 8774770 - Rockport, TX 24 mi46 min ENE 1.9 G 6 80°F 77°F1008.4 hPa
IRDT2 24 mi46 min NE 7 G 8.9 77°F 78°F1009.2 hPa
CPNT2 29 mi46 min NW 5.1 G 7 75°F 77°F
MAXT2 - Mission-Aransas Reserve, TX 30 mi76 min 5.1 74°F 1009 hPa (+0.0)62°F
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 36 mi46 min NNE 8.9 G 9.9 78°F 79°F1008.7 hPa
AWRT2 43 mi46 min NE 8 G 8.9 72°F 76°F1008.7 hPa

Wind History for Nueces Bay, TX
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G26
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SE16
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S23
G30
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G20

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Corpus Christi, Corpus Christi International Airport, TX5 mi25 minNE 12 G 1810.00 miA Few Clouds85°F51°F31%1008 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX11 mi80 minNE 610.00 miMostly Cloudy80°F64°F58%1008.8 hPa
Mc Campbell, TX13 mi21 minNNE 11 G 1810.00 miPartly Cloudy84°F51°F32%1008.5 hPa
Robstown, Nueces County Airport, TX15 mi41 minN 010.00 miFair87°F40°F19%1008.8 hPa
Port Aransas, Mustang Beach Airport, TX18 mi41 minENE 610.00 miMostly Cloudy77°F59°F56%1008.8 hPa

Wind History from CRP (wind in knots)
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Last 24hrSE25
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S9S11SE8SE8N6NE6NE8NE7NE8NE12
G18
1 day agoSE15SE15SE14SE16SE16SE11SE12SE9SE9SE15S14SE16SE13SE14SE14SE14SE17SE12SE16SE16
G25
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2 days agoSE26
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SE24SE18SE20SE19SE17SE15SE11SE12SE12SE8SE9SE11SE9SE9SE10S9SE12SE13SE13SE12

Tide / Current Tables for Nueces Bay, Texas
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Nueces Bay
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Wed -- 07:23 AM CDT     Sunrise
Wed -- 07:25 AM CDT     0.16 feet Low Tide
Wed -- 08:39 AM CDT     Moonrise
Wed -- 07:31 PM CDT     0.26 feet High Tide
Wed -- 07:45 PM CDT     Sunset
Wed -- 09:41 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.20.2

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 (15,3,4,5)
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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.