Monday, October25, 2021
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Marine Weather and Tides
Port O'Connor, TX

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:34AMSunset 6:49PM Monday October 25, 2021 1:58 PM CDT (18:58 UTC) Moonrise 9:20PMMoonset 10:59AM Illumination 77% Phase: Waning Gibbous; Moon at 20 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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GMZ330 Matagorda Bay-galveston Bay- 1025 Am Cdt Mon Oct 25 2021
Rest of today..Southwest winds around 5 knots becoming south in the afternoon. Bay waters smooth.
Tonight..South winds 5 to 10 knots. Bay waters smooth.
Tuesday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers late in the morning. A chance of showers in the afternoon.
Tuesday night..Southeast winds 10 to 15 knots becoming south 15 to 20 knots after midnight. Bay waters slightly choppy becoming choppy after midnight. A slight chance of showers in the evening, then a chance of showers and isolated Thunderstorms after midnight.
Wednesday..Southwest winds 15 to 20 knots becoming west in the afternoon. Bay waters choppy. Showers and Thunderstorms.
Wednesday night..Northwest winds 15 to 20 knots. Bay waters choppy.
Thursday..Northwest winds 15 to 20 knots. Bay waters choppy.
Thursday night..Northwest winds 15 to 20 knots. Bay waters choppy.
Friday..Northwest winds 15 to 20 knots. Bay waters choppy.
Friday night..Northwest winds 15 to 20 knots decreasing to 10 to 15 knots after midnight. Bay waters choppy becoming slightly choppy after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1025 Am Cdt Mon Oct 25 2021
Synopsis for high island to matagorda ship channel out 60 nm.. Light onshore flow will continue through early Tuesday. A cold front is expected to move through the area on Wednesday with moderate to strong onshore flow ahead of it Tuesday night and then strong offshore flow developing in its wake through the end of the week. Showers and storms will accompany the approaching front with some strong storms possible. Seas will build in the wake of the front up to 6 to 8 feet offshore. Moderate to strong offshore winds will continue through Friday.


7 Day Forecast for Marine Location Near Port O'Connor, TX
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location: 28.44, -96.4     debug


Area Discussion for - Corpus Christi, TX
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FXUS64 KCRP 251752 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 1252 PM CDT Mon Oct 25 2021

AVIATION /18Z TAFs/.

Other than VCT holding onto MVFR CIGs for the next hour or so, all terminals are currently in VFR. VFR conditions prevail through the rest of this afternoon into the early evening. Another low- ceiling event is forecast overnight with MVFR->IFR possible across all terminals, greatest impacts expected over VCT/ALI could reach LIFR at times. There remains the potential for significant visibility reductions, especially over VCT/ALI. But with winds aloft stronger than this morning (~20 knots) and a slight increase in winds at the surface, mixing at the surface will be more favorable and could limit dense fog formation. Improvements to VFR are expected by mid-morning and southeasterly winds will begin to gust near 20 knots. Amendments are likely as there is low confidence on the onset and level of these ceilings.

PREV DISCUSSION. /Issued 459 AM CDT Mon Oct 25 2021/

SHORT TERM (Today through Tuesday) .

Areas of fog with patchy dense fog have developed across portions of South Texas early this morning. Visibilities are generally around 1 mile across the area, with several locations at a 1/2 mile or less at times. However, have opted for holding off on issuing a Dense Fog Advisory for now as visibilities have been bouncing around over the past few hours, but will continue to monitor the situation and re-evaluate this decision if dense fog conditions become more widespread later this morning.

Upper level ridging will continue to build over the area today, leading to subsidence and generally dry and very warm conditions across the region. High temperatures today are forecast to climb into the upper 80s to upper 90s over the area, with some locations briefly experiencing heat indices nearing 105 degrees this afternoon. Other than that, expected a generally light to moderate southerly flow with decreasing clouds through the day. The fog potential will likely end around mid morning before returning overnight tonight.

The pattern aloft will begin changing tonight as energy associated to the remnants of current Hurricane Rick in the Eastern Pacific emerge over western portions of South Texas by Tuesday morning. This disturbance is expected to bring along deeper moisture into the region allowing for rain chances to increase over the area. Isolated showers and thunderstorms will be possible Tuesday morning, before becoming a bit more scattered during the afternoon hours. Highest convective chances can be expected along the coastal waters and eastern half of the CWA tomorrow, but the activity should remain fairly isolated out west. Lows tonight will be warm and in the low to mid 70s areawide. Highs on Tuesday will be a few degrees cooler than today and in the mid 80s to mid 90s.

Minor coastal flooding continues across the Gulf-facing beaches of the Middle Texas coast early this morning with tides running around 1.0-1.5 ft above predicted. A Coastal Flood Advisory will remain in effect until 6 AM to account for this. P-ETSS and ETSS guidance continue to indicate these conditions to occur again later this afternoon and overnight during the next high tide cycle, therefore, have opted for issuing another Coastal Flood Advisory which will be in effect from 5 PM this afternoon through 5 AM Tuesday morning.

LONG TERM (Tuesday Night through Sunday) .

Ahead of a strong mid-level trough over the Rockies, a shortwave will traverse across South Texas Tuesday night increasing rain and thunderstorm chances especially offshore and across the Victoria Crossroads. Then Wednesday, as the trough moves across Texas, a cold front will surge southward with isolated to numerous showers and thunderstorms developing mainly east and offshore through Wednesday afternoon. Activity will diminish quickly from west to east as the front moves offshore.

Have increased winds for the first part of the forecast as a strong LLJ develops over our CWA just ahead of the trough and will result in strong flow across the region. Dry air behind the front will result in PWAT's dipping to below 0.50 inches. Elevated fire weather conditions will be a concern over the Brush Country Wednesday afternoon with minimum relative humidity in the teens and strong 20 foot winds approaching 25 mph. Despite fuels having normal moisture, drought conditions are abnormally dry to moderate across the Brush Country.

After the trough swings east and exits TX Wednesday night, ridging will build in and promote subsidence for the weekend resulting in mostly clear skies and very dry conditions aloft. As such, temperatures during the day will only dip approximately 5 degrees and overnight lows will drop to the low to mid 50s.

MARINE .

A generally weak to moderate onshore flow will persist across the coastal waters today through Tuesday, with winds becoming moderate to strong overnight Tuesday night ahead of an approaching cold front. A passing upper level disturbance will contribute to isolated to scattered showers and thunderstorms on Tuesday. Strong flow will switch around from the northwest Wednesday afternoon as the front moves offshore. Flow will weaken to moderate levels Thursday afternoon and then weak to moderate by Saturday. Periods of Small Craft Advisory conditions will be possible Tuesday night through Thursday afternoon. Scattered to numerous showers and thunderstorms are expected Tuesday night through Wednesday, then dry conditions will return through the remainder of the week.

PRELIMINARY POINT TEMPS/POPS. Corpus Christi 89 74 88 75 88 / 0 10 30 20 30 Victoria 91 71 88 72 84 / 0 10 20 30 60 Laredo 97 75 93 75 89 / 0 10 20 10 0 Alice 94 72 91 73 89 / 0 10 30 20 20 Rockport 88 75 87 76 89 / 0 10 30 20 60 Cotulla 98 74 93 72 89 / 0 0 10 20 0 Kingsville 93 73 90 74 89 / 0 10 30 10 20 Navy Corpus 88 77 87 77 86 / 0 10 30 20 50

CRP WATCHES/WARNINGS/ADVISORIES. TX . Coastal Flood Advisory from 5 PM this afternoon to 5 AM CDT Tuesday For the following zones: Aransas Islands . Calhoun Islands . Kleberg Islands . Nueces Islands.

GM . None.



EMF/94 . AVIATION


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 0 mi59 min ESE 5.1G7 81°F 85°F1013.8 hPa (-0.6)
MBET2 4 mi59 min S 4.1G5.1 80°F 80°F1013.1 hPa (-0.5)
SDRT2 - 8773037 - Seadrift, TX 17 mi59 min SSE 7G8 81°F 81°F1014.4 hPa (-0.6)
VCAT2 18 mi59 min E 4.1G5.1 80°F 82°F1014.2 hPa (-0.6)
AWRT2 26 mi59 min SSE 5.1G5.1 82°F 78°F1013.6 hPa (-0.4)
EMAT2 32 mi59 min SSE 5.1G8 81°F 84°F1013.9 hPa (-0.7)
KBQX 42 mi44 min 0 86°F 77°F
RCPT2 - 8774770 - Rockport, TX 45 mi59 min SSE 4.1G6 83°F 81°F1015.1 hPa (-0.3)
SGNT2 47 mi59 min SSE 2.9G5.1 82°F 80°F1014 hPa (-0.7)

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX21 mi66 minSSW 710.00 miFair85°F74°F70%1014.3 hPa
Port Lavaca - Calhoun County Airport, TX21 mi64 minE 510.00 miPartly Cloudy88°F76°F68%1014.6 hPa

Link to 5 minute data for KPKV

Wind History from PKV (wind in knots)
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Last 24hrS9S7S8S8S4S7S3SE400S4S30S300000000S3E5
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2 days agoS3E5E7SE8SE9SE9SE9SE8E8SE9SE5SE6SE4SE30S3SE3SE3NE40S4S3SE7E7

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Mon -- 02:38 AM CDT     1.43 feet High Tide
Mon -- 07:32 AM CDT     Sunrise
Mon -- 11:59 AM CDT     Moonset
Mon -- 02:58 PM CDT     0.45 feet Low Tide
Mon -- 06:45 PM CDT     Sunset
Mon -- 10:19 PM CDT     Moonrise
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 Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Mon -- 04:10 AM CDT     1.59 feet High Tide
Mon -- 07:33 AM CDT     Sunrise
Mon -- 12:01 PM CDT     Moonset
Mon -- 05:33 PM CDT     0.50 feet Low Tide
Mon -- 06:46 PM CDT     Sunset
Mon -- 10:19 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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