Tuesday, September29, 2020
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Marine Weather and Tides
Port O'Connor, TX

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:19AMSunset 7:16PM Tuesday September 29, 2020 8:36 PM CDT (01:36 UTC) Moonrise 5:29PMMoonset 4:14AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 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- 321 Pm Cdt Tue Sep 29 2020
Tonight..North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Wednesday..West winds 5 to 10 knots becoming southwest in the afternoon. Bay waters smooth.
Wednesday night..South winds 5 to 10 knots becoming southwest after midnight. Bay waters smooth.
Thursday..North winds 5 to 10 knots becoming east in the afternoon. Bay waters smooth.
Thursday night..East winds 5 to 10 knots becoming northeast 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight.
Friday..Northeast winds 10 to 15 knots. Bay waters slightly choppy.
Friday night..East winds 10 to 15 knots. Bay waters slightly choppy.
Saturday and Saturday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Sunday..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday night..East winds 5 to 10 knots becoming northeast after midnight. Bay waters smooth.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 321 Pm Cdt Tue Sep 29 2020
Synopsis for high island to matagorda ship channel out 60 nm.. Expect decrease offshore winds tonight as high pressure builds into the region. A weak cold front will move through the waters late Thursday night or Friday morning with light to moderate northeast winds developing in its wake. Onshore flow returns to the area over the weekend before another weak cold front moves through the area late Sunday or early Monday.


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 292312 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 612 PM CDT Tue Sep 29 2020

DISCUSSION.

Note Aviation Discussion below corresponding to the 00z TAFs.

AVIATION.

VFR conditions expected during the TAF period. Weak to moderate north wind this evening, becoming light/variable overnight/early Wednesday morning, then generally weak S/SW afterward, except weak/moderate onshore flow anticipated over the southern Coastal Plains by late Wednesday afternoon.

PREV DISCUSSION. /Issued 358 PM CDT Tue Sep 29 2020/

SHORT TERM (Tonight through Wednesday Night) .

What a treat of a day has been today with cooler temperatures and sunny skies! The good news is that the beautiful weather conditions are expected to persist through tomorrow, with the only difference being slightly warmer high temperatures.

High pressure will continue to build across South Texas aloft and at the surface through the period, with subsidence leading to dry conditions and clear skies. Temperatures will run a few degrees cooler tonight than as compared to last night, as light winds and clear skies allow for optimal radiational cooling. The coldest temperatures can be expected towards sunrise Wednesday morning, with lows generally in the low to mid 50s. Highs on Wednesday will be slightly warmer than today as the winds shift around and the flow becomes more westerly to southwesterly in the afternoon. Highs are forecasted to range from the mid 80s to the lower 90s. Another cool night may then be in store for Wednesday night, with lows in the mid 50s to the lower 60s. No precipitation is expected through the period.

Tides may approach or briefly exceed advisory criteria again tonight across the Gulf facing beaches south of Port Aransas. But with a weak to moderate offshore flow and subsiding seas expected overnight, have opted for holding off on issuing any advisories with this package, leaving the decision to the evening shift as they continue to monitor the situation.

LONG TERM (Thursday through Tuesday) .

Not much change in the extended forecast. Pleasant conditions are still expected through the week and into the weekend as mid level high pressure remains in control. Models prog a weak embedded short wave to track south to southeast on the eastern periphery of the high Thu/Thu night. The trough becomes more pronounced as it pushes the high farther southwest on Fri through Sat. However, the moisture will remain limited through the weekend with no precip anticipated. Models prog the high to shift back across the region early next week keeping dry conditions across S TX. PWATs are progged to remain below 1 inch much of the period. Light and variable winds are expected Thu/Thu night, becoming onshore and strengthening slightly Fri. A weak to moderate east to southeast flow is progged through the weekend. Model solutions diverge Monday with respect to a weak frontal boundary. Have kept with the blended models which show winds backing to the east and northeast first part of next week. This will increase low level moisture somewhat, but still too dry for precip. Overall, skies will remain primarily mostly clear. The low level moisture combined with the dry air aloft will be conducive for patchy early morning fog early next week, but will hold off any mention of fog that far out in time.

MARINE .

Winds and seas will continue to subside across the coastal waters tonight. However, a Small Craft Advisory remains in effect for the offshore waters through 7 PM this evening. A weak to moderate northerly flow can be expected overnight. A light and variable flow will persist Wednesday through Wednesday night. A generally light and variable flow will prevail Thursday and Thursday night, then the winds strengthen slightly from the northeast and east Friday. A weak to moderate onshore flow is expected by late Friday and into the weekend. Precip is not anticipated due to drier air across the region.

PRELIMINARY POINT TEMPS/POPS. Corpus Christi 56 87 60 87 63 / 0 0 0 0 0 Victoria 51 87 56 86 60 / 0 0 0 0 0 Laredo 58 88 60 89 61 / 0 0 0 0 0 Alice 54 88 56 90 61 / 0 0 0 0 0 Rockport 57 84 65 87 67 / 0 0 0 0 0 Cotulla 53 90 57 91 60 / 0 0 0 0 0 Kingsville 55 88 57 87 62 / 0 0 0 0 0 Navy Corpus 63 83 67 84 70 / 0 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES. TX . None. GM . Small Craft Advisory until 7 PM CDT this evening For the following zones: 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.



WC/87 . 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 mi49 min 77°F 77°F1019.4 hPa
MBET2 4 mi49 min 77°F 78°F1018.5 hPa
SDRT2 - 8773037 - Seadrift, TX 17 mi49 min 74°F 78°F1020.1 hPa
VCAT2 18 mi49 min 76°F 76°F1019.6 hPa
AWRT2 26 mi49 min 74°F 75°F1019.2 hPa
EMAT2 32 mi49 min 71°F 78°F1019.1 hPa
RCPT2 - 8774770 - Rockport, TX 45 mi49 min 76°F 1020.7 hPa
SGNT2 47 mi49 min 73°F 77°F1019 hPa

Wind History for Port OConnor, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palacios Municipal Airport, TX21 mi45 minNNE 710.00 miFair67°F52°F59%1019.6 hPa
Port Lavaca - Calhoun County Airport, TX21 mi62 minNNW 310.00 miFair76°F39°F27%1020 hPa

Link to 5 minute data for KPKV

Wind History from PKV (wind in knots)
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Last 24hrN9N9N6N8N8N8N5NW4N6NW6NW7N8N6N6N5N13
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1 day agoSE5S6S5S6S6S7CalmCalmS4N6N5N16
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Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Port O'Connor
Click for Map
Tue -- 05:14 AM CDT     Moonset
Tue -- 07:17 AM CDT     Sunrise
Tue -- 08:25 AM CDT     1.11 feet High Tide
Tue -- 12:17 PM CDT     1.07 feet Low Tide
Tue -- 03:43 PM CDT     1.10 feet High Tide
Tue -- 06:28 PM CDT     Moonrise
Tue -- 07:13 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.50.60.70.80.911.11.11.11.11.11.11.11.11.11.11.1110.90.80.70.6

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Tue -- 01:57 AM CDT     0.54 feet Low Tide
Tue -- 05:15 AM CDT     Moonset
Tue -- 07:18 AM CDT     Sunrise
Tue -- 10:44 AM CDT     1.24 feet High Tide
Tue -- 03:09 PM CDT     1.17 feet Low Tide
Tue -- 06:21 PM CDT     1.20 feet High Tide
Tue -- 06:29 PM CDT     Moonrise
Tue -- 07:13 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.50.60.60.80.911.11.21.21.21.21.21.21.21.21.21.21.21.21.110.9

Weather Map
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wmap_A
GEOS Local Image of    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
Ground Weather Radar Station Corpus Christi, TX
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weather_mapweather_map weather_map

Gulf Stream Current



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