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Marine Weather and Tide Forecast for Port O'Connor, TX

April 20, 2025 8:13 PM CDT (01:13 UTC) Change Location
Sunrise 6:55 AM   Sunset 7:58 PM
Moonrise 1:10 AM   Moonset 11:29 AM 
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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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NOTE: Zones were updated 3/20/2025
GMZ330 Matagorda Bay- 255 Pm Cdt Sun Apr 20 2025

.small craft should exercise caution - .

This afternoon - Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers with a slight chance of Thunderstorms.

Tonight - Southeast winds 10 to 15 knots, becoming south around 10 knots in the late evening and overnight. Bay waters slightly choppy, easing to smooth in the late evening and overnight. A chance of Thunderstorms. A chance of showers.

Monday - East winds around 5 knots, veering to southeast in the late morning and afternoon. Bay waters smooth. A chance of Thunderstorms. A chance of showers.

Monday night - Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms early in the evening.

Tuesday - Southeast winds around 10 knots, rising to 10 to 15 knots in the afternoon. Bay waters smooth, rising to slightly choppy in the afternoon. A chance of showers and Thunderstorms.

Tuesday night - Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of Thunderstorms. A chance of showers.

Wednesday - Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of Thunderstorms. A chance of showers.

Wednesday night - Southeast winds 10 to 15 knots. Bay waters slightly choppy.

Thursday - Southeast winds 10 to 15 knots. Bay waters slightly choppy.

Thursday night - Southeast winds 10 to 15 knots. Bay waters slightly choppy.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 255 Pm Cdt Sun Apr 20 2025

Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
southeast winds have managed to increase somewhat more than originally projected, placing galveston bay and the nearshore gulf back into small craft advisory criteria. Gusts up to 25 knots are expected through the rest of the afternoon and could continue into the evening and part of the overnight. Chance of showers and Thunderstorms increases by this evening and tonight. We think there will be a daily risk of showers and Thunderstorms through much of the upcoming week. Onshore winds and seas are expected to increase by the middle of the week.

7 Day Forecast for Marine Location Near Port O'Connor, TX
   
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Tide / Current for Port O'Connor, Matagorda Bay, Texas
  
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Port O'Connor
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Sun -- 02:09 AM CDT     Moonrise
Sun -- 05:34 AM CDT     0.05 feet Low Tide
Sun -- 06:54 AM CDT     Sunrise
Sun -- 12:28 PM CDT     Moonset
Sun -- 06:28 PM CDT     1.14 feet High Tide
Sun -- 07:54 PM CDT     Sunset
Sun -- 08:37 PM CDT     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Port O'Connor, Matagorda Bay, Texas does not exist in database. Press Edit above and select a valid nearby location.

Port O'Connor, Matagorda Bay, Texas, Tide feet
12
am
0.5
1
am
0.4
2
am
0.3
3
am
0.2
4
am
0.1
5
am
0.1
6
am
0
7
am
0.1
8
am
0.1
9
am
0.2
10
am
0.3
11
am
0.4
12
pm
0.6
1
pm
0.7
2
pm
0.8
3
pm
0.9
4
pm
1
5
pm
1.1
6
pm
1.1
7
pm
1.1
8
pm
1.1
9
pm
1
10
pm
0.9
11
pm
0.8

Tide / Current for Port Lavaca, Matagorda Bay, Texas
  
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Port Lavaca
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Sun -- 02:10 AM CDT     Moonrise
Sun -- 06:55 AM CDT     Sunrise
Sun -- 08:13 AM CDT     0.07 feet Low Tide
Sun -- 12:29 PM CDT     Moonset
Sun -- 07:55 PM CDT     Sunset
Sun -- 08:16 PM CDT     1.27 feet High Tide
Sun -- 08:37 PM CDT     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Port Lavaca, Matagorda Bay, Texas does not exist in database. Press Edit above and select a valid nearby location.

Port Lavaca, Matagorda Bay, Texas, Tide feet
12
am
1
1
am
0.8
2
am
0.7
3
am
0.5
4
am
0.4
5
am
0.3
6
am
0.2
7
am
0.1
8
am
0.1
9
am
0.1
10
am
0.1
11
am
0.2
12
pm
0.4
1
pm
0.5
2
pm
0.7
3
pm
0.8
4
pm
1
5
pm
1.1
6
pm
1.2
7
pm
1.2
8
pm
1.3
9
pm
1.3
10
pm
1.2
11
pm
1.2

Area Discussion for Corpus Christi, TX
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NOTE: mouseover dotted underlined text for definition
FXUS64 KCRP 202339 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 639 PM CDT Sun Apr 20 2025

New AVIATION

SHORT TERM
(Tonight through Monday night)
Issued at 245 PM CDT Sun Apr 20 2025

Key Messages:

- Low to medium chances (20-50%) for rain continue tonight and Monday

The weak cold front continues to slowly push eastward this afternoon promoting isolated showers across the Coastal Plains and Victoria Crossroads. The front is expected to stall across the Coastal Bend area late this afternoon into this evening, maintaining our low to medium chances for rain with the best chances being along the Coastal Bend. With rainfall coverage expected to be isolated and light to moderate in intensity, flooding is not expected to be a concern as accumulations are expected to remain below an inch. Rain chances will quickly taper off late Monday afternoon into evening hours. The weather across the Brush Country will be a completely different story though. Dry air in that are in the wake of the front will lead to mostly clear to clear skies and pleasant conditions. A few webcams across the region has shown water reaching or approaching the dunes this afternoon during the peak of high tide.
Therefore, a Coastal Flood Advisory has been issued for the Gulf facing beaches of the Middle Texas Coast from Port Aransas south to Baffin Bay.

LONG TERM
(Tuesday through next Saturday)
Issued at 245 PM CDT Sun Apr 20 2025

Key Messages:

- Daily low to medium rain chances through Thursday.

Now that front is upon us today, the front stalls and is stuck over the Coastal Bend through Tuesday. The thermal gradient washes out, and with time, on Tuesday, the sfc trough fills in. However, the onshore flow and frontal convergence will help to push the moisture up. Currently, the PWAT values are around 1.3", but move up to around 1.5-1.7" by Tuesday. 500 mb shortwaves eject out of the longer, shallow 500 mb longwave trough off the west coast. So Wednesday has low to medium chance for showers and thunderstorms while Wednesday night and Thursday looks to have low chance. Friday through Sunday the NBM is dry, but the GFS and to much lesser extent, the ECMWF, do have isolated showers, in the western and northern portions of the Brush Country. So something could be introduced by the time we get to the weekend, but for now, the forecast will remain dry.

High temperatures are expected to remain fairly consistent with lower to mid 80s along the Coastal Bend to the lower to mid 90s in the Rio Grande Plains.

AVIATION
(00Z TAFS)
Issued at 627 PM CDT Sun Apr 20 2025

Isolated showers across the Victoria Crossroads this evening are expected to diminish through 02Z. Additional showers and thunderstorms are expected to develop by early Monday morning across the Coastal Bend to the Victoria Crossroads. Rain chances are medium (30-50%) for mainly Monday morning with chances decreasing by Monday afternoon. Rain chances across LRD and COT are low (5-14%). A mix of VFR and MVFR conditions are expected through much of the TAF period with brief periods of IFR between 09-15Z across ALI, CRP and VCT, and brief MVFR between 12-16Z across LRD and COT. Surface winds will generally be light and variable, becoming easterly around 10 knots by Monday afternoon.

MARINE
Issued at 245 PM CDT Sun Apr 20 2025

A light to gentle breeze (BF 2-3) is expected tonight and tomorrow with winds increasing to a predominately gentle breeze (BF 3) Monday night. Medium rain chances (40-50%) will linger across the bays and nearshore waters as while the front stalls and lingers across the region. Rain chances should improve late Monday afternoon. The onshore flow will increase to a Moderate breeze (BF 4) Tuesday. A generally Moderate to Fresh breeze (BF 4-5) will then persist through the rest of the week and into the weekend. Low to medium rain chances (20-50%) are expected daily through Wednesday, before diminishing late week into the weekend.

FIRE WEATHER
Issued at 245 PM CDT Sun Apr 20 2025

Minimum relative humidity values are expected to remain above 40% across the Brush Country and above 50% across the Coastal Plains and Victoria Crossroads Monday and Monday night. The moderate to high relative humidity values and low Energy Release Component values below the 55th percentile should prevent elevated fire weather conditions from developing through Monday night. Plentiful moisture with daily rain and thunderstorm chances will maintain RH values above critical thresholds all week. No elevated or critical fire weather concerns are expected at this time.

PRELIMINARY POINT TEMPS/POPS
Corpus Christi 71 83 71 84 / 30 50 0 30 Victoria 66 85 68 85 / 30 40 0 40 Laredo 65 92 72 93 / 0 10 10 30 Alice 68 88 69 89 / 20 30 0 30 Rockport 71 83 72 84 / 40 50 0 30 Cotulla 63 94 71 93 / 0 0 10 40 Kingsville 70 85 69 86 / 20 50 0 30 Navy Corpus 71 80 72 80 / 40 50 0 30

CRP WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk until 7 PM CDT this evening for TXZ345-442- 443-447.

GM...Small Craft Advisory until 1 AM CDT Monday for GMZ270-275.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 0 mi73 minESE 9.9G12 76°F 81°F29.93
MBET2 4 mi73 minS 8.9G11 76°F 78°F29.89
SDRT2 - 8773037 - Seadrift, TX 17 mi73 minESE 11G14 79°F 81°F29.91
VCAT2 18 mi73 minS 13G18 77°F 80°F29.90
AWRT2 26 mi73 minSSE 8G11 78°F 79°F29.88
EMAT2 32 mi73 minSE 11G16 77°F 79°F29.92
RCPT2 - 8774770 - Rockport, TX 45 mi73 minSSE 7G9.9 78°F 29.90


Wind History for Port OConnor, TX
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KPKV CALHOUN COUNTY,TX 21 sm38 mincalm10 smMostly Cloudy77°F73°F89%29.94

Weather Map
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GEOS Local Image of southern planes -- texas  
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Corpus Christi, TX,





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