Monday, January27, 2020
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Marine Weather and Tides
Port Aransas, 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 7:17AMSunset 6:06PM Monday January 27, 2020 6:54 PM CST (00:54 UTC) Moonrise 9:16AMMoonset 8:44PM Illumination 9% 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
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GMZ230 Bays And Waterways From Baffin Bay To Port Aransas- 335 Pm Cst Mon Jan 27 2020
Tonight..Southeast wind 10 to 15 knots becoming south 5 to 10 knots late in the night. Bays slightly choppy to occasionally choppy. Patchy fog. A slight chance of showers after midnight.
Tuesday..Southwest wind 5 to 10 knots shifting west in the afternoon. Bays smooth. Patchy fog in the morning. A chance of showers.
Tuesday night..Northwest wind 15 to 20 knots. Bays choppy to occasionally rough.
Wednesday..Northwest wind 15 to 20 knots becoming north 10 to 15 knots in the afternoon. Bays choppy to occasionally rough.
Wednesday night..Northeast wind 5 to 10 knots. Bays smooth to slightly choppy.
Thursday..Northeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy. A chance of showers.
Thursday night..Northeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers.
Friday..North wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers.
Friday night..North wind 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy.
Saturday..Northwest wind 5 to 10 knots. Bays smooth to slightly choppy.
Saturday night..West wind 5 to 10 knots shifting southwest after midnight. Bays smooth.
GMZ200 335 Pm Cst Mon Jan 27 2020
Synopsis for the middle texas coastal waters.. A weak to moderate east to southeast flow is expected tonight into Tuesday morning before a cold front pushes through the area Tuesday afternoon. Patchy sea fog will be possible over the bays and nearshore waters again late tonight into early Tuesday morning. Isolated showers are possible early Tuesday morning, becoming scattered to numerous by late Tuesday morning through Tuesday afternoon. Rain chances are expected to decrease Tuesday evening. A moderate to strong offshore flow will develop behind the cold front Tuesday night. Advisory conditions are possible by Tuesday night. Generally moderate northeast flow expected Wednesday, and weak to moderate Wednesday night ahead of an upper level disturbance. This system should generate scattered showers Thursday and Friday, before drier conditions and moderate to strong offshore wind develop after frontal passage. Dry with generally weak offshore flow expected Saturday.


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 272313 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 513 PM CST Mon Jan 27 2020

DISCUSSION.

Updated for 00Z Aviation Discussion.

AVIATION.

VFR conditions are expected through the rest of the evening. Ceilings and visibilities will lower to MVFR later tonight with increasing moisture. Rain chances will increase tonight ahead of an approaching cold front. The cold front will move through South Texas Tuesday morning, reaching the coast around 18Z. Winds will shift to the west and then northwest behind the front.

Fog could again be an issue tonight, though with increasing winds and cloud cover and stronger surface winds, developing fog should be patchy. Ceilings may drop to IFR/LIFR ahead of and along the cold front before lifting behind the cold front as drier air filters in.

PREV DISCUSSION. /Issued 349 PM CST Mon Jan 27 2020/

SHORT TERM (Tonight through Tuesday Night) .

A flat ridge aloft will shift east tonight as an upper low and its trough axis moves TX. The LLJ is progged to strengthen to 25-30 knots tonight. This will usher deeper moisture across S TX ahead of a cold front. The stronger LLJ and increasing clouds will hinder fog development, but could still see patchy fog overnight, especially as the frontal bdry approaches S TX and winds relax. Rain chances will increase overnight, mainly after midnight. The highest pops are across the northern CWA late tonight, shifting to the east and southeast through Tuesday morning as the frontal bdry moves across S TX. Low CAPE values over the coastal waters combined with the upper trough and low level moisture convergence, may produce a few thunderstorms along the coastline and over the coastal waters during the day Tuesday. Rain chances end from west to east through Tue afternoon across S TX and through the early evening across the gulf waters. Cooler and drier conditions are expected in the wake of the cold front by Tuesday night.

LONG TERM (Wednesday through Sunday) .

Concur with the GFS/ECMWF deterministic runs which predict an upper disturbance to move east of the region Wednesday, while another upper system approaches from the west. Synoptic scale lift associated with this second upper system is predicted to affect the CWA late Wednesday night through Friday. Both the GFS and ECMWF develop a surface low over the Bay of Campeche (likely in response upper level jet dynamics), which allows for the develop of a front moving offshore late Thursday night/early Friday while synoptic scale lift continues over the region. Thus, the greatest chance for convection over the CWA expected Thursday evening/night, ahead of/near the developing surface frontal boundary. Expect upper forcing to maintain scattered showers Friday. Afterward, expect the upper system to move east and result in dry conditions Saturday/Sunday.

MARINE . A weak to moderate east to southeast flow is expected tonight into Tuesday morning before a cold front pushes through the area Tuesday afternoon. Patchy sea fog will be possible over the bays and nearshore waters again late tonight into early Tuesday morning. Isolated showers are possible early Tuesday morning, becoming scattered to numerous by late Tuesday morning through Tuesday afternoon. Rain chances are expected to decrease Tuesday evening. A moderate to strong offshore flow will develop behind the cold front Tuesday night. Advisory conditions are possible by Tuesday night. Expect an upper level disturbance to contribute to scattered convection Thursday/Friday, followed by drier conditions Saturday/Sunday. SCA conditions may occur Friday in response to a frontal boundary/increasing MSLP gradient between the Bay of Campeche and the NW Gulf of Mexico.

PRELIMINARY POINT TEMPS/POPS. Corpus Christi 59 76 48 66 47 / 20 60 0 0 10 Victoria 56 74 44 63 44 / 50 80 10 0 10 Laredo 59 77 47 69 47 / 20 20 0 0 10 Alice 57 77 45 68 44 / 20 70 0 0 10 Rockport 60 74 48 64 50 / 20 60 0 0 10 Cotulla 57 74 44 68 43 / 60 20 0 0 10 Kingsville 58 79 46 68 45 / 20 60 0 0 10 Navy Corpus 61 73 50 64 53 / 20 60 0 0 10

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



LS/77 . AVIATION


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTAT2 - 8775237 - Port Aransas, TX 0 mi60 min 64°F 64°F1013.3 hPa
PTAT2 - Port Aransas, TX 1 mi54 min E 12 G 13 64°F 62°F1013.1 hPa (-1.1)62°F
ANPT2 2 mi60 min 64°F 64°F1012.3 hPa
RCPT2 - 8774770 - Rockport, TX 13 mi60 min 64°F 1013 hPa
PACT2 - 8775792 - Packery Channel, TX 17 mi60 min 65°F 65°F1013.1 hPa
TAQT2 - 8775296 - Texas State Aquarium, TX 17 mi60 min 65°F 64°F1012.1 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 20 mi60 min 61°F 64°F1012.7 hPa
NUET2 22 mi60 min 67°F1013 hPa
IRDT2 28 mi60 min 63°F 1013.5 hPa
AWRT2 30 mi60 min 62°F 65°F1013 hPa
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 42 mi60 min 61°F 69°F1013 hPa
SDRT2 - 8773037 - Seadrift, TX 44 mi60 min 61°F 68°F1013.9 hPa
KMZG 47 mi39 min SSW 12 G 20 66°F 59°F

Wind History for Port Aransas, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Aransas, Mustang Beach Airport, TX2 mi59 minE 810.00 miPartly Cloudy64°F61°F89%1013.9 hPa
Mc Campbell, TX9 mi59 minESE 1010.00 miFair66°F62°F90%1013.2 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX16 mi58 minESE 910.00 miPartly Cloudy65°F63°F93%1012.9 hPa
Rockport Aransas County Airport, TX17 mi61 minE 126.00 miFair with Haze65°F57°F78%1013.2 hPa
Corpus Christi, Corpus Christi International Airport, TX23 mi63 minESE 1010.00 miA Few Clouds66°F61°F84%1012.7 hPa

Link to 5 minute data for KRAS

Wind History from RAS (wind in knots)
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Last 24hrS4S4S4SE3S3S3S3CalmCalmN3W4S4S3W3W3CalmE4NE5E6NE7E9E12E9E7
1 day agoSE11SE10SE11SE9SE11S6S7S7S8S7S5SW4W3W3NW7NW7NW9NW10N6NW7NW7NW5CalmS3
2 days agoE5E4E4E4E5SE4E5SE5SE5SE4E5E7E7SE7E9E7SE7E7SE9SE9SE8SE7SE9SE11

Tide / Current Tables for Port Aransas, Texas
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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
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Aransas Pass
Click for Map
Mon -- 03:02 AM CST     -0.00 knots Slack
Mon -- 07:17 AM CST     Sunrise
Mon -- 09:15 AM CST     Moonrise
Mon -- 09:22 AM CST     -1.48 knots Max Ebb
Mon -- 02:33 PM CST     0.00 knots Slack
Mon -- 06:04 PM CST     Sunset
Mon -- 06:44 PM CST     1.32 knots Max Flood
Mon -- 08:44 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.40.20-0.2-0.5-0.8-1.1-1.4-1.5-1.5-1.4-1.1-0.8-0.30.20.71.11.31.31.31.210.8

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 (19,4,5,8)
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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.