Marine Weather and Tide Forecast for Port Lavaca, TX
April 19, 2025 3:23 AM CDT (08:23 UTC) Change Location
 | Sunrise 6:56 AM Sunset 7:57 PM Moonrise 12:22 AM Moonset 10:28 AM |
GMZ330 Matagorda Bay- 1153 Pm Cdt Fri Apr 18 2025
.small craft advisory in effect through Sunday morning - .
Rest of tonight - Southeast winds 15 to 20 knots. Bay waters choppy.
Saturday - Southeast winds 15 to 20 knots. Gusts up to 25 knots. Bay waters choppy.
Saturday night - Southeast winds 15 to 20 knots. Bay waters choppy.
Sunday - Southeast winds 15 to 20 knots. Bay waters choppy. A chance of showers and Thunderstorms in the afternoon.
Sunday night - Southeast winds 10 to 15 knots, easing to around 10 knots late. Bay waters slightly choppy, easing to smooth late. A chance of showers and Thunderstorms.
Monday - Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers in the morning.
Monday night - East winds 5 to 10 knots. Bay waters smooth.
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 showers and Thunderstorms after midnight.
Wednesday - Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Wednesday night - Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of Thunderstorms.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1153 Pm Cdt Fri Apr 18 2025
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
a long fetch of moderate south and southeast winds will continue across the western gulf today, resulting in continued hazardous winds and seas. Rip current risk is expected to be high as well through the weekend. Decreasing winds and seas are expected Sunday into Monday, before increasing somewhat by the middle of the week. Shower and Thunderstorm chances will increase Sunday and continue into next week as increased gulf moisture interacts with a series of upper level disturbances.
a long fetch of moderate south and southeast winds will continue across the western gulf today, resulting in continued hazardous winds and seas. Rip current risk is expected to be high as well through the weekend. Decreasing winds and seas are expected Sunday into Monday, before increasing somewhat by the middle of the week. Shower and Thunderstorm chances will increase Sunday and continue into next week as increased gulf moisture interacts with a series of upper level disturbances.
7 Day Forecast for Marine Location Near Port Lavaca, TX
NEW! Add second zone forecast
| Tide / Current data from XTide NOT FOR NAVIGATION |
Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas, Tide feet
| Tide / Current data from XTide NOT FOR NAVIGATION |
Seadrift, San Antonio Bay, Texas, Tide feet
Area Discussion for Corpus Christi, TX
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FXUS64 KCRP 190526 AFDCRP
Area Forecast Discussion National Weather Service Corpus Christi TX 1226 AM CDT Sat Apr 19 2025
New AVIATION
SHORT TERM
(Tonight through Saturday night)
Issued at 206 PM CDT Fri Apr 18 2025
Key Messages:
- Wind Advisory for portions of South Texas through 9 PM tonight.
- Isolated showers/thunderstorms across the northern Brush Country Saturday afternoon/evening.
Cloud cover will gradually increase tonight as warm air advection strengthens ahead of an approaching disturbance from the west. This will help keep overnight lows relatively warm, generally in the low 70s across the region. Winds will remain breezy overnight as a tight surface pressure gradient will continue to support gusts exceeding 20 knots. A Wind Advisory remains in effect through 9 PM this evening for the Coastal Plains and portions of the Brush Country.
The LLJ, that has been in place the last couple of days, is expected to weaken slightly and shift eastward by Saturday morning, gusty winds may persist. However, confidence in additional Wind Advisory-level criteria on Saturday remains low.
On Saturday, a positively tilted upper-level trough will continue to shift eastward, eventually evolving into a closed 500 mb closed low over the Desert Southwest. Embedded shortwaves ejecting off the closed low, coupled with a surface cold front, will help establish low-level convergence across western portions of the CWA This, along with PWATs rising to 1.5-1.7 inches by Saturday afternoon/evening, could support the development of isolated showers or thunderstorms across the northern Brush Country.
If thunderstorm development occurs, it will likely be driven by localized diurnal heating, and is contingent on the erosion of cap currently forecast (CIN 200-300 J/kg). Overall confidence in precipitation remains low (20-30%) at this time, as most of the activity should remain in South Central Texas where conditions are more favorable. However, this pattern signals a broader increase in rain chances for portion of South Texas on Sunday.
More on this in the long-term forecast discussion below.
Temperatures on Saturday will be slightly moderated by the cloud cover, with afternoon highs generally in the 90s. Slightly "cooler" conditions, with highs in the mid to upper 80s, will be in place along the coast and into the Victoria Crossroads. Overnight lows will remain in the low 70s Saturday night.
LONG TERM
(Sunday through next Thursday)
Issued at 206 PM CDT Fri Apr 18 2025
Key Messages:
- Low to medium chances for rain Sunday through the middle of next week
Rain chances will increase across the region Sunday as a front approaches the region, and is expected to stall across South Texas. Apart from the expected stalled boundary, PWAT values are expected to rise to around 1.5-1.7" ahead and along the boundary, which are well above normal values for this time of year (near 99th percentile). This will promote medium (30-60%) rain chances across South Texas. Although rain chances will be elevated for this Easter Sunday, rainfall amounts are expected to remain under half an inch areawide, so don't expect a complete washout. Rain chances will continue into next week with the meandering front lingering, and several disturbances makCurrently have a mix of VFR/MVFR conditions across South Texas. Low ceilings along the Coastal Bend have briefly brought some locations down to IFR. Expecting mainly MVFR CIGs overnight with eastern terminals hanging on to MVFR/IFR ceilings through the morning hours into the early afternoon before returning to VFR. Expect gusty southeast winds to continue overnight with gusts up to around 25 knots tonight, increasing to around 35 knots tomorrow afternoon.
MVFR ceilings should re-develop again across eastern sites tomorrow evening.e their way across the region, resulting in elevated rain chances (25-60%) Sunday through Thursday. Rain chances drop to the 15-25% range, late in the work week.
AVIATION
(06Z TAFS)
Issued at 1215 AM CDT Sat Apr 19 2025
Currently have a mix of VFR/MVFR conditions across South Texas. Low ceilings along the Coastal Bend have briefly brought some locations down to IFR. Expecting mainly MVFR CIGs overnight with eastern terminals hanging on to MVFR/IFR ceilings through the morning hours into the early afternoon before returning to VFR. Expect gusty southeast winds to continue overnight with gusts up to around 25 knots tonight, increasing to around 35 knots tomorrow afternoon.
MVFR ceilings should re-develop again across eastern sites tomorrow evening.
MARINE
Issued at 206 PM CDT Fri Apr 18 2025
Tonight, onshore flow subsides to a moderate to fresh (BF 4-5)
breeze and seas 5 to 7 feet. Onshore flow increases back to a fresh to strong breeze (BF 5-6) Saturday with seas remaining at 5-7 ft. A moderate breeze (BF 4) will continue Sunday decreasing to light to gentle (BF 2-3) Monday and Monday night before increasing back to moderate levels (BF 4) Tuesday. Low to medium (25-50%) rain chances are expected Sunday through Wednesday.
FIRE WEATHER
Issued at 206 PM CDT Fri Apr 18 2025
With the expected rainfall, increase in moisture and Energy Release Component values in the 50-60th percentile early in the week dropping to below the 50th percentile, elevated fire weather conditions are not expected throughout the long term.
PRELIMINARY POINT TEMPS/POPS
Corpus Christi 85 72 85 69 / 10 0 40 30 Victoria 86 71 85 64 / 10 0 60 40 Laredo 95 71 88 66 / 10 20 30 10 Alice 89 71 88 66 / 10 10 40 20 Rockport 84 74 85 69 / 0 0 50 40 Cotulla 92 72 88 63 / 10 30 50 10 Kingsville 87 72 87 68 / 10 0 40 30 Navy Corpus 80 73 81 70 / 0 0 50 40
CRP WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk through this evening for TXZ345-442-443- 447.
GM...Small Craft Advisory until 7 AM CDT Sunday for GMZ231-232-236- 237-250-255-270-275.
Area Forecast Discussion National Weather Service Corpus Christi TX 1226 AM CDT Sat Apr 19 2025
New AVIATION
SHORT TERM
(Tonight through Saturday night)
Issued at 206 PM CDT Fri Apr 18 2025
Key Messages:
- Wind Advisory for portions of South Texas through 9 PM tonight.
- Isolated showers/thunderstorms across the northern Brush Country Saturday afternoon/evening.
Cloud cover will gradually increase tonight as warm air advection strengthens ahead of an approaching disturbance from the west. This will help keep overnight lows relatively warm, generally in the low 70s across the region. Winds will remain breezy overnight as a tight surface pressure gradient will continue to support gusts exceeding 20 knots. A Wind Advisory remains in effect through 9 PM this evening for the Coastal Plains and portions of the Brush Country.
The LLJ, that has been in place the last couple of days, is expected to weaken slightly and shift eastward by Saturday morning, gusty winds may persist. However, confidence in additional Wind Advisory-level criteria on Saturday remains low.
On Saturday, a positively tilted upper-level trough will continue to shift eastward, eventually evolving into a closed 500 mb closed low over the Desert Southwest. Embedded shortwaves ejecting off the closed low, coupled with a surface cold front, will help establish low-level convergence across western portions of the CWA This, along with PWATs rising to 1.5-1.7 inches by Saturday afternoon/evening, could support the development of isolated showers or thunderstorms across the northern Brush Country.
If thunderstorm development occurs, it will likely be driven by localized diurnal heating, and is contingent on the erosion of cap currently forecast (CIN 200-300 J/kg). Overall confidence in precipitation remains low (20-30%) at this time, as most of the activity should remain in South Central Texas where conditions are more favorable. However, this pattern signals a broader increase in rain chances for portion of South Texas on Sunday.
More on this in the long-term forecast discussion below.
Temperatures on Saturday will be slightly moderated by the cloud cover, with afternoon highs generally in the 90s. Slightly "cooler" conditions, with highs in the mid to upper 80s, will be in place along the coast and into the Victoria Crossroads. Overnight lows will remain in the low 70s Saturday night.
LONG TERM
(Sunday through next Thursday)
Issued at 206 PM CDT Fri Apr 18 2025
Key Messages:
- Low to medium chances for rain Sunday through the middle of next week
Rain chances will increase across the region Sunday as a front approaches the region, and is expected to stall across South Texas. Apart from the expected stalled boundary, PWAT values are expected to rise to around 1.5-1.7" ahead and along the boundary, which are well above normal values for this time of year (near 99th percentile). This will promote medium (30-60%) rain chances across South Texas. Although rain chances will be elevated for this Easter Sunday, rainfall amounts are expected to remain under half an inch areawide, so don't expect a complete washout. Rain chances will continue into next week with the meandering front lingering, and several disturbances makCurrently have a mix of VFR/MVFR conditions across South Texas. Low ceilings along the Coastal Bend have briefly brought some locations down to IFR. Expecting mainly MVFR CIGs overnight with eastern terminals hanging on to MVFR/IFR ceilings through the morning hours into the early afternoon before returning to VFR. Expect gusty southeast winds to continue overnight with gusts up to around 25 knots tonight, increasing to around 35 knots tomorrow afternoon.
MVFR ceilings should re-develop again across eastern sites tomorrow evening.e their way across the region, resulting in elevated rain chances (25-60%) Sunday through Thursday. Rain chances drop to the 15-25% range, late in the work week.
AVIATION
(06Z TAFS)
Issued at 1215 AM CDT Sat Apr 19 2025
Currently have a mix of VFR/MVFR conditions across South Texas. Low ceilings along the Coastal Bend have briefly brought some locations down to IFR. Expecting mainly MVFR CIGs overnight with eastern terminals hanging on to MVFR/IFR ceilings through the morning hours into the early afternoon before returning to VFR. Expect gusty southeast winds to continue overnight with gusts up to around 25 knots tonight, increasing to around 35 knots tomorrow afternoon.
MVFR ceilings should re-develop again across eastern sites tomorrow evening.
MARINE
Issued at 206 PM CDT Fri Apr 18 2025
Tonight, onshore flow subsides to a moderate to fresh (BF 4-5)
breeze and seas 5 to 7 feet. Onshore flow increases back to a fresh to strong breeze (BF 5-6) Saturday with seas remaining at 5-7 ft. A moderate breeze (BF 4) will continue Sunday decreasing to light to gentle (BF 2-3) Monday and Monday night before increasing back to moderate levels (BF 4) Tuesday. Low to medium (25-50%) rain chances are expected Sunday through Wednesday.
FIRE WEATHER
Issued at 206 PM CDT Fri Apr 18 2025
With the expected rainfall, increase in moisture and Energy Release Component values in the 50-60th percentile early in the week dropping to below the 50th percentile, elevated fire weather conditions are not expected throughout the long term.
PRELIMINARY POINT TEMPS/POPS
Corpus Christi 85 72 85 69 / 10 0 40 30 Victoria 86 71 85 64 / 10 0 60 40 Laredo 95 71 88 66 / 10 20 30 10 Alice 89 71 88 66 / 10 10 40 20 Rockport 84 74 85 69 / 0 0 50 40 Cotulla 92 72 88 63 / 10 30 50 10 Kingsville 87 72 87 68 / 10 0 40 30 Navy Corpus 80 73 81 70 / 0 0 50 40
CRP WATCHES/WARNINGS/ADVISORIES
TX...High Rip Current Risk through this evening for TXZ345-442-443- 447.
GM...Small Craft Advisory until 7 AM CDT Sunday for GMZ231-232-236- 237-250-255-270-275.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| VCAT2 | 0 mi | 54 min | SSE 15G | 74°F | 77°F | 29.89 | ||
| PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX | 17 mi | 54 min | E 15G | 74°F | 80°F | 29.91 | ||
| SDRT2 - 8773037 - Seadrift, TX | 17 mi | 54 min | ESE 12G | 75°F | 77°F | 29.89 | ||
| MBET2 | 21 mi | 54 min | S 15G | 74°F | 77°F | 29.88 | ||
| AWRT2 | 30 mi | 54 min | SE 11G | 74°F | 77°F | 29.87 | ||
| EMAT2 | 37 mi | 54 min | ESE 15G | 74°F | 78°F | 29.93 | ||
| RCPT2 - 8774770 - Rockport, TX | 49 mi | 54 min | SE 9.9G | 74°F | 29.89 |
Wind History for Port OConnor, TX
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KPKV
Terminal Aerodrome Forecast (TAF) for KPKV
Wind History Graph: PKV
(wind in knots)
GEOS Local Image of SouthCentralPlains
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Corpus Christi, TX,
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