Thursday, January23, 2020
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Marine Weather and Tides
Aransas Pass, TX

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:18AMSunset 6:03PM Thursday January 23, 2020 7:18 PM CST (01:18 UTC) Moonrise 6:25AMMoonset 5:03PM Illumination 1% Phase: Waning Crescent; Moon at 28 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- 257 Pm Cst Thu Jan 23 2020
Tonight..North wind 5 to 10 knots. Bays smooth to slightly choppy.
Friday..Northeast wind 5 to 10 knots shifting east in the afternoon. Bays smooth.
Friday night..East wind 5 to 10 knots. Bays smooth.
Saturday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers.
Saturday night..Southeast wind 10 to 15 knots becoming south 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. Showers likely and a slight chance of Thunderstorms.
Sunday..Northwest wind 5 to 10 knots shifting north in the afternoon. Bays smooth to slightly choppy. A chance of showers and a slight chance of Thunderstorms in the morning.
Sunday night..Northeast wind 5 to 10 knots. Bays smooth to slightly choppy.
Monday..Northeast wind 5 to 10 knots shifting east in the afternoon. Bays smooth.
Monday night..Southeast wind 5 to 10 knots. Bays smooth.
Tuesday..Southwest wind 5 to 10 knots shifting west in the afternoon. Bays smooth. A chance of showers and a slight chance of Thunderstorms.
Tuesday night..West wind 5 to 10 knots shifting northwest after midnight. Bays smooth to slightly choppy. A slight chance of showers.
GMZ200 257 Pm Cst Thu Jan 23 2020
Synopsis for the middle texas coastal waters.. A light to moderate offshore flow will become more easterly on Friday, then onshore by Friday night. A weak to moderate onshore flow is expected Saturday along with increasing rain chances. A few Thunderstorms will be possible Saturday and Saturday night. A weak front may shift winds to the north Sunday and result in decreasing rain chances Sunday through Sunday night. Onshore flow returns Monday, then becomes offshore once again with a second system. Rain chances return Tuesday with this system.


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 232322 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 522 PM CST Thu Jan 23 2020

DISCUSSION.

00Z aviation discussion follows.

AVIATION.

Continued VFR with light winds through Friday. One model indicates light fog around VCT by daybreak, but for now this appears very unlikely.

PREV DISCUSSION. /Issued 257 PM CST Thu Jan 23 2020/

SHORT TERM (Tonight through Friday Night) .

Quiet weather in the short term as high pressure builds into the region. Northwest winds will turn northeast and diminish after sunset. High pressure drifts off to the east late in the day Friday and Friday night, turning winds back off the Gulf and beginning to build moisture once again.

With dry but not arctic air tonight, lows will still get down into the 40s everywhere except along the immediate coast. Highs will get into the 60s east and 70s west on Friday, then lows Friday night will be a few notches above tonight as Gulf winds return.

Will continue to monitor Gulf water levels through the afternoon, but levels are running a third to a half a foot less than 24h ago, and models are suggesting levels will stay below advisory criteria.

LONG TERM (Saturday through Thursday) .

Saturday continues to look wet with a quick return of moisture combined with a developing surface trough and an upper level short wave. A strong upper jet streak and weak instability may lead to a few thunderstorms, but mostly showers are anticipated Sat due to a weak capping inversion. The surface trough and associated upper short wave are progged to shift east and northeast Sat night with a weak front/high pressure building across the area Sun in its wake. Surface winds shift to the north by late Sat night/Sun morning and drier air filters across the area Sun. However, temps will be warmer Sunday than Saturday. By Sunday night, light winds and clearing skies will allow temps to drop to the mid 40s to mid 50s.

Onshore flow returns by Monday ahead of the next upper level system and its associated cold front. Moisture also returns once again Monday with increasing rain chances by Tue as the cold front moves through S TX. Model solutions diverge the latter part of next week with the GFS being more aggressive/wetter than the ECMWF with regards to another upper disturbance and cold front progged to move through S TX sometime next Thu.

As for temps, slightly above normal temps are expected through the first half of next week, becoming more normal the latter part of the week.

MARINE .

Offshore flow tonight will turn easterly on Friday, then onshore by Friday night. A weak to moderate onshore flow Saturday will become weak offshore flow by late Saturday night into Sunday in response to a weak frontal boundary moving through the area. Numerous showers and a few thunderstorms will be possible Sat/Sat night then decreasing from west to east through Sun. A weak onshore flow returns by Monday.

PRELIMINARY POINT TEMPS/POPS. Corpus Christi 47 68 54 71 60 / 0 0 0 60 50 Victoria 41 68 47 68 58 / 0 0 0 30 60 Laredo 47 71 54 68 56 / 0 0 0 30 10 Alice 45 71 52 72 58 / 0 0 0 50 30 Rockport 50 67 57 69 61 / 0 0 0 50 60 Cotulla 43 71 49 69 54 / 0 0 0 20 10 Kingsville 46 72 54 73 59 / 0 0 0 50 40 Navy Corpus 53 67 59 69 62 / 0 0 0 60 50

CRP WATCHES/WARNINGS/ADVISORIES. TX . None. GM . None.



MCZ/93 . AVIATION


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCPT2 - 8774770 - Rockport, TX 6 mi48 min 65°F 1015.2 hPa
ANPT2 7 mi48 min 65°F 63°F1014.4 hPa
RTAT2 - 8775237 - Port Aransas, TX 7 mi48 min 63°F 63°F1015.5 hPa
PTAT2 - Port Aransas, TX 8 mi78 min NE 8 G 8 64°F 62°F1014.9 hPa (+1.1)57°F
TAQT2 - 8775296 - Texas State Aquarium, TX 19 mi48 min 68°F 64°F1014.4 hPa
NUET2 23 mi48 min 65°F1015.6 hPa
PACT2 - 8775792 - Packery Channel, TX 23 mi48 min 64°F 66°F1015.3 hPa
AWRT2 25 mi48 min 64°F 62°F1014.8 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 26 mi48 min 63°F 64°F1014.8 hPa
IRDT2 34 mi48 min 63°F 1015.7 hPa
SDRT2 - 8773037 - Seadrift, TX 37 mi48 min 61°F 64°F1015.7 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 48 mi48 min 64°F 67°F1015.2 hPa
KMZG 49 mi23 min E 20 64°F 55°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

Link to 5 minute data for KTFP

Wind History from TFP (wind in knots)
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Last 24hrCalmSW3S5SW5SW3CalmCalmCalmCalmNW3NW4N5NW4NW6N11NW6NW7NW7N9N12
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Tide / Current Tables for Rockport, Aransas Bay, Texas
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Rockport
Click for Map
Thu -- 01:00 AM CST     -0.06 feet High Tide
Thu -- 06:25 AM CST     Moonrise
Thu -- 07:19 AM CST     Sunrise
Thu -- 11:48 AM CST     -0.49 feet Low Tide
Thu -- 05:02 PM CST     Moonset
Thu -- 06:00 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Thu -- 06:25 AM CST     Moonrise
Thu -- 06:50 AM CST     -2.13 knots Max Ebb
Thu -- 07:18 AM CST     Sunrise
Thu -- 12:02 PM CST     0.00 knots Slack
Thu -- 04:53 PM CST     2.03 knots Max Flood
Thu -- 05:03 PM CST     Moonset
Thu -- 06:01 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0-0.3-0.6-1.1-1.5-1.9-2.1-2.1-2-1.7-1.3-0.7-00.81.41.82221.81.51.20.80.5

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Corpus Christi, TX (20,4,5,8)
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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 numerous 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.