Tuesday, March20, 2018 L-36.com

Marine Weather and Tides
Aransas Pass, TX

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 7:30AMSunset 7:42PM Tuesday March 20, 2018 3:08 AM CDT (08:08 UTC) Moonrise 8:45AMMoonset 9:55PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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
    EDIT      (on/off)   Help
GMZ235 Bays And Waterways From Port Aransas To Port O'connor- 1026 Pm Cdt Mon Mar 19 2018
.small craft exercise caution...
Rest of tonight..Northeast wind around 5 knots becoming north 15 to 20 knots. Bays choppy to occasionally rough.
Tuesday..North wind 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bays choppy to occasionally rough.
Tuesday night..Northeast wind 5 to 10 knots. Bays smooth to slightly choppy.
Wednesday..East wind 10 to 15 knots shifting southeast in the afternoon. Bays slightly choppy to occasionally choppy.
Wednesday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Thursday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Thursday night..South wind around 15 knots. Bays slightly choppy to choppy.
Friday..South wind 15 to 20 knots. Bays choppy.
Friday night..South wind around 20 knots. Bays choppy to occasionally rough.
Saturday..South wind 15 to 20 knots. Bays choppy.
Saturday night..South wind 15 to 20 knots decreasing to 10 to 15 knots after midnight. Bays choppy.
GMZ200 1026 Pm Cdt Mon Mar 19 2018
Synopsis for the middle texas coastal waters.. A surge of high pressure is expected to move in late tonight across the middle texas waters. Weak northerly winds will increase overnight with moderate to strong northerly winds developing over the gulf waters, resulting in a small craft advisories through Tuesday morning. Winds will gradually weaken through Tuesday afternoon. A weak to moderate east to southeast flow is then expected on Wednesday. Onshore flow will then strengthen to moderate levels by Thursday night. Moderate to strong flow is expected Friday night into Saturday as low pressure deepens over the southern plains.

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

Area Discussion for - Corpus Christi, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 kcrp 200519
area forecast discussion
national weather service corpus christi tx
1219 am cdt Tue mar 20 2018

See aviation discussion below for the 06z tafs.

Vfr conditions will prevail through the TAF period. Winds will be
the main focus. Currently winds are light, however reinforcing
high pressure is expected to move through S tx late tonight
leading to a moderate increase in northerly winds through tue.

Winds are expected to weaken through Tue afternoon and become more
northeast to east by late Tue afternoon into early evening.

Previous discussion issued 655 pm cdt Mon mar 19 2018

updated for the 00z tafs.


as drier sets into the region,VFR conditions are expected across
all terminal locations tonight and tomorrow. High pressure will
keep the skies mostly clear. Light northerly winds will persist
overnight into tomorrow morning, but around daybreak, winds may
begin to pick up a bit and become breezy for crp and vct. As high
pressure continues to build into the region, the breezy conditions
are expected to diminish in the afternoon. Otherwise, clear skies
and light northerly winds are expected across the region tomorrow

Previous discussion... Issued 413 pm cdt Mon mar 19 2018
short term tonight through Tuesday night)...

isolated showers and thunderstorms developed along and behind the
frontal boundary this afternoon and are expected to slowly diminish
through the early evening. Much drier air has moved into south texas
with obs reporting dewpoints in the upper 20s across the brush
country west of highway 281, with dewpoints in the mid 30s 40s
east of the highway. The cooler air still remains well to the
north. However, a second surge of high pressure is expected to
move through the region late tonight bringing in the cooler air
while also reinforcing the dry airmass. Temperatures for tonight
should cool nicely under clear skies, with lows dipping into the
50s. However that second surge of pressure late in the night may
allow for a few locations, especially in the northern areas from
cotulla to victoria to dip into the upper 40s.

Tuesday will be very pleasant with clear skies, and a cooler and
drier airmass. Temperatures will warm mainly due to the sunny
conditions into the 70s and low 80s. Winds may still be breezy
during the morning hours in wake of the second surge of pressure,
but should begin to relax through the afternoon. The surface high
will also begin to shift east through Tuesday afternoon evening.

With the dry airmass still in place, Tuesday night is expected to be
chilly for south texas with lows in the upper 50s low 60s for areas
along the coast and rio grande, and in the upper 40s low 50s farther


small craft advisories are in effect for the gulf waters tonight
as a second surge of high pressure moves into the region.

Fire weather...

the red flag warning remains in effect for the brush country
through the afternoon. Winds continue to remain gusty across the
brush country where rh values have fall to 10 to 15%. Farther
east toward the coastal plains, rh values range from 15 to 25%,
but winds are not reaching criteria for rfw. However, an elevated
fire weather statement remains in place.

Long term (Wednesday through Monday)...

an upper level ridge will be over the southern rockies into
northwest mexico Wednesday into Thursday. The upper ridge axis will
shift into the southern plains Friday and then flatten out as it
moves east Saturday. A short wave trough over the great basin Friday
will dampen out as it moves into the central plains Friday night
into Saturday morning. A strong upper trough will move into the west
coast Friday. GFS shows this upper trough will weaken as it moves
into the rockies over the weekend, while the ECMWF can show a little
more amplitude remaining with the trough over the rockies by Monday.

A surface high pressure ridge from east texas into the northwest
gulf of mexico early Wednesday will translate to the east. The
onshore flow will remain moderate Wednesday into Thursday. The
southerly low level flow will increase Friday into Saturday as low
pressure area deepens over the central plains in associated with the
short wave trough moving out of the rockies. Held on to the slight
chance pops over the victoria crossroads Saturday for mainly
streamer type convection. Moisture axis shifts toward the rio grande
by Sunday. There is the possibility of a weak short wave trough
moving out of mexico that could lead to isolated convection for
northwest part of the forecast area Sunday. Lot of uncertain with
regards to the upper pattern by Monday. Will broad brush slight
chance pops for the area on Monday. Temperatures will show steady
warming trend through the period.

Preliminary point temps pops
Corpus christi 54 78 55 79 61 0 0 0 0 0
victoria 49 74 48 77 56 0 0 0 0 0
laredo 55 82 56 85 61 0 0 0 0 0
alice 52 80 51 82 58 0 0 0 0 0
rockport 55 75 58 76 63 0 0 0 0 0
cotulla 49 79 50 82 57 0 0 0 0 0
kingsville 53 80 52 81 59 0 0 0 0 0
navy corpus 59 74 61 77 65 0 0 0 0 0

Crp watches warnings advisories
Tx... None.

Gm... Small craft advisory from 3 am to 1 pm cdt Tuesday 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.

Te 81... Aviation

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANPT2 7 mi50 min N 8 G 9.9 69°F 71°F1009.8 hPa
RTAT2 - 8775237 - Port Aransas, TX 7 mi50 min NNW 5.1 G 6 68°F 71°F1010.9 hPa
PTAT2 - Port Aransas, TX 8 mi68 min NNW 6 G 6 69°F 71°F1010.5 hPa (+1.8)61°F
TAQT2 - 8775296 - Texas State Aquarium, TX 19 mi50 min 66°F 74°F1010.3 hPa
PACT2 - 8775792 - Packery Channel, TX 23 mi50 min W 4.1 G 6 1011.3 hPa
NUET2 23 mi50 min NW 5.1 G 6 76°F1011.3 hPa
AWRT2 25 mi50 min NNE 15 G 17 1011.1 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 26 mi50 min WNW 4.1 G 5.1 1010.2 hPa
IRDT2 34 mi50 min WNW 8 G 9.9 68°F 75°F1011 hPa
SDRT2 - 8773037 - Seadrift, TX 37 mi50 min NNW 4.1 G 6 1011.3 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 48 mi50 min NNW 14 G 17 1011.1 hPa
KMZG 49 mi33 min E 12 72°F 55°F

Wind History for Rockport, TX
(wind in knots)    EDIT      (on/off)   Help
1 day
2 days

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mc Campbell, TX8 mi73 minN 510.00 miFair58°F50°F77%1010.8 hPa
Rockport Aransas County Airport, TX10 mi75 minNNE 510.00 miFair61°F44°F54%1011 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX21 mi72 minWNW 710.00 miFair66°F63°F90%1010.4 hPa

Wind History from TFP (wind in knots)
Last 24hrSW8SW8SW11SW4SW7N12
1 day agoS8S7S8S7S5S4S6S5CalmS8S9S9S14
2 days agoSW9SW11S8S6S5S5S7S5S7S9S11S11S15SE14S14SE13

Tide / Current Tables for Rockport, Aransas Bay, Texas
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Click for Map
Tue -- 02:51 AM CDT     -0.01 feet Low Tide
Tue -- 07:32 AM CDT     Sunrise
Tue -- 09:44 AM CDT     Moonrise
Tue -- 12:00 PM CDT     0.12 feet High Tide
Tue -- 02:17 PM CDT     0.12 feet Low Tide
Tue -- 06:50 PM CDT     0.13 feet High Tide
Tue -- 07:39 PM CDT     Sunset
Tue -- 10:55 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Aransas Pass, Texas Current
   EDIT      (on/off)   Help   One Week of Data
Aransas Pass
Click for Map
Tue -- 02:31 AM CDT     0.00 knots Slack
Tue -- 06:51 AM CDT     0.82 knots Max Flood
Tue -- 07:32 AM CDT     Sunrise
Tue -- 09:44 AM CDT     Moonrise
Tue -- 01:17 PM CDT     -0.00 knots Slack
Tue -- 02:01 PM CDT     -0.01 knots Max Ebb
Tue -- 02:37 PM CDT     -0.01 knots Min Ebb
Tue -- 07:39 PM CDT     Sunset
Tue -- 10:54 PM CDT     Moonset
Tue -- 11:29 PM CDT     -0.84 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Corpus Christi, TX (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Corpus Christi, TX
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current

Ad by Google

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.