Marine Weather and Tide Forecast for Port Lavaca, TX

LONG TERM
(Saturday through next Wednesday)
Issued at 155 PM CDT Thu Apr 24 2025

Key Messages:

- Rain chances return to South Texas by midweek

- Above normal temperatures expected to persist through next week; 100s possible out west

Expect the region to be under the influence from the aforementioned mid level ridge that is draped over the region. This will promote quiet conditions across the region with highs generally in the 80s and 90s. The NBM ensemble is hinting at a medium to high chance (50- 70%) for temperatures to exceed 100 degrees in the Rio Grande Plains beginning Monday. This is expected to persist through the remainder of the week. Conditions will remain mostly dry outside of a low chance for diurnally driven convection each day with the arrival of the sea breeze through Tuesday. As the ridge progresses to the east, expect onshore flow to return with an approaching disturbance to the north. This will promote moisture return to the region, which will combine with some embedded shortwaves and moderate instability leading to a low to medium chance for showers and thunderstorms Wednesday and Thursday. With this possibility being still days out however, uncertainties on timing and amounts still remain so be sure to check back for future updates.

AVIATION
(00Z TAFS)
Issued at 601 PM CDT Thu Apr 24 2025

Expect MVFR to IFR CIGS to develop at all sites overnight. Vis restrictions should be minimal with a wind remaining up a bit, but have an MVFR VIS for ALI and VCT. CIGS likely slow to lift tomorrow, but should rise above 3kft by mid-day. Breezy southeasterly winds are expected in the afternoon.



MARINE
Issued at 155 PM CDT Thu Apr 24 2025

A gentle to moderate breeze (BF 3-4) can be expected to continue through this weekend. Onshore winds will increase early next week becoming moderate to fresh (BF 4-5) with winds across the bays and nearshore waters south of Port Aransas approaching Small Craft Advisory conditions.

FIRE WEATHER
Issued at 155 PM CDT Thu Apr 24 2025

Winds and humidity levels will stay below critical thresholds through next week. Recent rainfall across portions of South Texas has reduced the fire risk across the region. However, elevated fire thresholds could be approached early next week across portions of the Rio Grande Plains when minimum afternoon relative humidity values drop below 30% and ERC values trend above 65% across Southwest Webb County.

PRELIMINARY POINT TEMPS/POPS
Corpus Christi 73 85 72 85 / 10 10 0 0 Victoria 70 86 68 87 / 10 10 0 0 Laredo 73 92 73 95 / 10 10 0 10 Alice 71 89 70 90 / 10 10 0 0 Rockport 73 84 73 84 / 20 10 0 0 Cotulla 72 92 71 94 / 10 10 0 10 Kingsville 71 87 71 87 / 10 10 0 0 Navy Corpus 73 81 73 81 / 10 10 0 0

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