Station Name: Rio Grande nr Mercedes, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 76 feet

Nearest Address:
Mercedes, TX 78570
Hidalgo County

GPS Coordinates: 26.0615722, -97.8999833

Nearby Water Temperatures

Coastal Flood Advisory issued April 18 at 12:39PM CDT until April 19 at 1:00PM CDT by NWS Brownsville TX

Effective: Sat April 18, 2026, 12:39 PM
Expires: Sat April 18, 2026, 8:45 PM

* WHAT...For the Coastal Flood Advisory, minor coastal flooding expected. For the High Surf Advisory, large breaking waves of 5 to 7 feet expected in the surf zone. * WHERE...Kenedy Island, Willacy Island and Cameron Island Counties. * WHEN...For the Coastal Flood Advisory, from 6 AM to 1 PM CDT Sunday. For the High Surf Advisory, from 6 AM to 7 PM CDT Sunday. * IMPACTS...Nuisance flooding is expected, with water reaching or pushing into the dunes on South Padre Island. Vehicles, except those with four wheel drive and high wheel bases, will be unable to be driven on the beach. This includes locations north of Public Beach Access #3. Minor to moderate beach erosion is expected. Dangerous swimming and surfing conditions and localized beach erosion.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

High Surf Advisory issued April 18 at 12:39PM CDT until April 19 at 7:00PM CDT by NWS Brownsville TX

Effective: Sat April 18, 2026, 12:39 PM
Expires: Sat April 18, 2026, 8:45 PM

* WHAT...For the Coastal Flood Advisory, minor coastal flooding expected. For the High Surf Advisory, large breaking waves of 5 to 7 feet expected in the surf zone. * WHERE...Kenedy Island, Willacy Island and Cameron Island Counties. * WHEN...For the Coastal Flood Advisory, from 6 AM to 1 PM CDT Sunday. For the High Surf Advisory, from 6 AM to 7 PM CDT Sunday. * IMPACTS...Nuisance flooding is expected, with water reaching or pushing into the dunes on South Padre Island. Vehicles, except those with four wheel drive and high wheel bases, will be unable to be driven on the beach. This includes locations north of Public Beach Access #3. Minor to moderate beach erosion is expected. Dangerous swimming and surfing conditions and localized beach erosion.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.