Station Name: Port O'Connor
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
S Washington Blvd
Port O'Connor, TX 97982
Calhoun County

GPS Coordinates: 28.445861, -96.395556

Nearby Water Temperatures

Flood Watch issued May 20 at 7:16PM CDT until May 25 at 7:00PM CDT by NWS Corpus Christi TX

Effective: Wed May 20, 2026, 7:16 PM
Expires: Thu May 21, 2026, 3:00 AM

* WHAT...Flooding caused by excessive rainfall remains possible over the next several days * WHERE...A portion of south Texas, including the following areas, Aransas Islands, Bee, Calhoun Islands, Coastal Aransas, Coastal Calhoun, Coastal Kleberg, Coastal Nueces, Coastal Refugio, Coastal San Patricio, Duval, Goliad, Inland Calhoun, Inland Kleberg, Inland Nueces, Inland Refugio, Inland San Patricio, Jim Wells, Kleberg Islands, La Salle, Live Oak, McMullen, Nueces Islands, Victoria and Webb. * WHEN...From 1 AM CDT Thursday through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Due to recent rainfall, the 3 hour flash flood guidance has fallen below 2.5" for much of the eastern half of South Texas with some spots below 0.50". Locations out west are sitting at 2.5-3" in the 3 hour flash flood guidance. With the expectation of more rain this week and into the weekend, flooding will be possible, especially in areas directly impacted by strong thunderstorms - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Watch issued May 20 at 12:41PM CDT until May 25 at 7:00AM CDT by NWS Houston/Galveston TX

Effective: Wed May 20, 2026, 12:41 PM
Expires: Thu May 21, 2026, 7:15 AM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of south central and southeast Texas, including the following areas, in south central Texas, Coastal Jackson and Inland Jackson. In southeast Texas, Brazoria Islands, Coastal Brazoria, Coastal Galveston, Coastal Matagorda, Fort Bend, Galveston Island, Inland Brazoria, Inland Galveston, Inland Matagorda, Matagorda Islands and Wharton. * WHEN...From Thursday morning through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Areas along the coast, especially Matagorda and Brazoria Counties, received 4-6+" between Tuesday night and Wednesday morning. These areas are expected to see another round of moderate to heavy rainfall on Thursday and Friday which brings the potential for flash flooding. The current extent of this Flood Watch includes areas with a flood threat within the next 24-48 hours, so the watch could be expanded in area and as the rainfall threat evolves going into the weekend. Rainfall rates are expected to peak in the 3-4+" per hour range in the heaviest downpours. Additional rainfall totals through Friday are anticipated to be in the 2-4" range along the coast. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Watch issued May 21 at 12:27AM CDT until May 25 at 7:00AM CDT by NWS Houston/Galveston TX

Effective: Thu May 21, 2026, 12:27 AM
Expires: Thu May 21, 2026, 4:30 PM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southeast Texas, including the following areas, in south central Texas, Coastal Jackson and Inland Jackson. In southeast Texas, Brazoria Islands, Coastal Brazoria, Coastal Galveston, Coastal Matagorda, Fort Bend, Galveston Island, Inland Brazoria, Inland Galveston, Inland Matagorda, Matagorda Islands and Wharton. * WHEN...From 7 AM CDT this morning through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Increasingly saturated grounds will be prone to faster runoff and potential flooding with additional rounds of storms expected through the weekend. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.