Thursday, April2, 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 7:16AMSunset 7:48PM Thursday April 2, 2020 9:52 AM CDT (14:52 UTC) Moonrise 1:05PMMoonset 2:21AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 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- 418 Am Cdt Thu Apr 2 2020
Today..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers in the afternoon.
Tonight..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers in the evening.
Friday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms in the afternoon.
Friday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Showers likely and a slight chance of Thunderstorms.
Saturday..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Showers and a chance of Thunderstorms.
Saturday night..East wind 5 to 10 knots. Bays smooth. A chance of showers and Thunderstorms.
Sunday..East wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Sunday night..Southeast wind 5 to 10 knots. Bays smooth. A slight chance of showers and Thunderstorms.
Monday..Southeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Monday night..Southeast wind 5 to 10 knots. Bays smooth.
GMZ200 418 Am Cdt Thu Apr 2 2020
Synopsis for the middle texas coastal waters.. Generally moderate onshore flow is expected over the coastal waters today due to higher surface pressure over the northern gulf of mexico and lower surface pressure over west texas. A weak to moderate onshore flow is expected Friday, as a frontal boundary approaches south texas. A weak to moderate onshore flow will continue Friday night into Saturday as the front approaches and stalls across the region. Showers and Thunderstorms are expected Friday and Saturday due to the abundance of moisture and the stalled front. Winds will pick up slightly Saturday and Sunday and begin to diminish by early next week. Despite a slight increase in winds, hazardous marine conditions are not expected. A chance of showers with a slight chance of Thunderstorms will be possible every afternoon for the the beginning of next week.


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 021145 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 645 AM CDT Thu Apr 2 2020

DISCUSSION.

Note Aviation Discussion below corresponding to the 12z TAFs.

AVIATION.

Expect predominate MVFR ceilings this morning, followed by a MVFR/VFR ceiling mixture later this afernoon. Isolated to scattered showers expeted today, and isolated thunderstorms may occur over the northern sections this afternoon. MVFR ceilings expected again early tonight through the end of the TAF period. Generally light wind early this morning will transition to moderate onshore later this afternoon, then light again towards the end of the TAF period.

PREV DISCUSSION. /Issued 433 AM CDT Thu Apr 2 2020/

SHORT TERM (Today through Friday) .

The NAM/GFS/ECMWF deterministic models predict an upper disturbance to move slowly EWD across the Rockies and CNTRL/NRN Plains during the period. In addition, the NAM/GFS/ECMWF/Canadian predict a persistent quasi-stationary subtropical jet over CNTRL TX which may provide synoptic scale lift to the NRN CWA later today, but more likely Friday. PWAT values are expected to remain above normal during the period (NAM deterministic.) The combination of moisture/upper forcing, and significant CAPE, may result in isolated/scattered convection today, with the best chance over the NRN CWA. In response to the foregoing upper disturbance, a frontal boundary is expected to approach the CWA from the north Friday. The combination of moist conditions, upper and surface forcing, and CAPE will result in scattered convection Friday. Concur with SPC with respect a slight risk of severe convection over the CNTRL/WRN CWA Friday, given the likelihood damaging wind (NAM deterministic predicts DCAPE values >1000 J/kg over the WRN CWA Friday afternoon), and possible supercells (NAM deterministic Supercell Parameter and BRN values for late Friday afternoon.)

LONG TERM (Friday night through Wednesday) .

Strong to possibly severe thunderstorms are expected Friday night into Saturday morning with the severe weather threat diminishing around 12z Saturday. Localized flooding could also be possible Friday night into Saturday morning as the WPC continues to show a marginal threat of excessive rainfall across the CWA. An abundance of moisture interacting with the stalled cold front will result in periods of heavy showers and thunderstorms Friday night into Saturday morning. The placement of the stalled front will be indicative to where the majority of the rainfall will occur. Showers and thunderstorms will continue Saturday with the threat for localized flooding due to a weak 0-3 km mean wind. Rain chances will begin to decrease early next week with only isolated showers and thunderstorms possible each afternoon. A slight chance to chance of rain showers will remain in place during the workweek due to favorable upper level dynamics and an abundance of moisture until next weekend when the next cold front arrives with drier air behind it.

Temperatures will cool slightly with highs Saturday in the mid 70s to lower 80s. Temperatures will begin to gradually warm up with highs Monday in the mid to upper 80s and some areas reaching 90 degrees by Wednesday.

MARINE .

Moderate onshore flow expected today over the coastal waters owing to the combination of higher MSLP over the NRN Gulf of Mexico, and lower MSLP over WRN TX. Expect the pressure gradient to relax somewhat Friday afternoon, as a frontal boundary approaches South Texas. A weak to moderate onshore flow will continue Friday night into Saturday as the front approaches and stalls across the region. Showers and thunderstorms are expected Friday and Saturday due to the abundance of moisture and the stalled front. Winds will pick up slightly Saturday and Sunday and begin to diminish by early next week. Despite a slight increase in winds, hazardous marine conditions are not expected. A chance of showers with a slight chance of thunderstorms will be possible every afternoon for the the beginning of next week.

PRELIMINARY POINT TEMPS/POPS. Corpus Christi 79 72 82 71 79 / 20 10 30 60 80 Victoria 78 69 80 67 76 / 40 30 40 70 80 Laredo 88 71 85 71 81 / 10 10 40 50 80 Alice 82 70 86 70 80 / 20 10 40 60 80 Rockport 79 73 80 71 77 / 20 10 20 60 80 Cotulla 81 69 84 67 80 / 20 10 60 70 80 Kingsville 82 71 85 70 81 / 20 10 30 50 80 Navy Corpus 77 72 78 72 76 / 20 10 20 60 80

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



WC/87 . AVIATION


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCPT2 - 8774770 - Rockport, TX 6 mi52 min ESE 8 G 12 73°F 1013.1 hPa (+0.4)
ANPT2 7 mi52 min E 11 G 12 72°F 73°F1011.2 hPa (+0.0)
RTAT2 - 8775237 - Port Aransas, TX 7 mi52 min E 7 G 9.9 73°F 73°F1012.3 hPa (+0.0)
PTAT2 - Port Aransas, TX 8 mi52 min ESE 11 G 12 72°F 71°F1011.8 hPa (+0.0)69°F
TAQT2 - 8775296 - Texas State Aquarium, TX 19 mi52 min 74°F 73°F1011.2 hPa (+0.3)
NUET2 23 mi52 min SSE 11 G 14 72°F1012.3 hPa (+0.5)
PACT2 - 8775792 - Packery Channel, TX 23 mi58 min E 8.9 G 11 73°F 73°F1011.7 hPa
AWRT2 25 mi58 min ESE 8 G 11 72°F 72°F1011.9 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 26 mi52 min E 12 G 14 73°F 74°F1011.6 hPa (+0.5)
IRDT2 34 mi52 min ESE 9.9 G 13 73°F 1012.4 hPa (+0.5)
SDRT2 - 8773037 - Seadrift, TX 37 mi52 min ESE 8.9 G 12 73°F 72°F1012.7 hPa (+0.0)
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 48 mi58 min E 8.9 G 12 73°F 74°F1012.3 hPa
KMZG 49 mi37 min SSW 16 73°F 68°F

Wind History for Rockport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mc Campbell, TX8 mi57 minSE 1010.00 miFair74°F72°F94%1012.2 hPa
Port Aransas, Mustang Beach Airport, TX9 mi57 minESE 810.00 miPartly Cloudy73°F68°F86%1012.5 hPa
Rockport Aransas County Airport, TX10 mi59 minSE 119.00 miA Few Clouds75°F66°F74%1012.2 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX21 mi56 minSE 1110.00 miMostly Cloudy73°F70°F90%1011.8 hPa

Link to 5 minute data for KTFP

Wind History from TFP (wind in knots)
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S14S7S9S9S8S5S5S5S4SW5CalmNW3CalmW4NW3NW7

Tide / Current Tables for Rockport, Aransas Bay, Texas
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Rockport
Click for Map
Thu -- 03:21 AM CDT     Moonset
Thu -- 07:16 AM CDT     Sunrise
Thu -- 08:32 AM CDT     0.03 feet Low Tide
Thu -- 02:04 PM CDT     Moonrise
Thu -- 07:46 PM CDT     Sunset
Thu -- 11:03 PM CDT     0.36 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.30.30.20.20.10.100000.10.10.10.20.20.20.30.30.30.30.30.40.4

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Thu -- 02:32 AM CDT     -1.55 knots Max Ebb
Thu -- 03:21 AM CDT     Moonset
Thu -- 07:16 AM CDT     Sunrise
Thu -- 08:37 AM CDT     0.00 knots Slack
Thu -- 01:44 PM CDT     1.70 knots Max Flood
Thu -- 02:04 PM CDT     Moonrise
Thu -- 07:46 PM CDT     Sunset
Thu -- 08:35 PM CDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.1-1.4-1.5-1.5-1.5-1.3-1.1-0.7-0.30.20.81.31.61.71.71.61.51.20.90.50.2-0.1-0.3-0.5

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 (10,2,3,4)
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Ground Weather Radar Station Corpus Christi, TX
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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.