Several hours of below freezing temperatures are expected.
The National Weather Service forecasts a strong Arctic cold front will move into the Corpus Christi area Sunday.
The state’s electric grid operator issued a weather watch until Friday but says it doesn’t expect power disruptions as demand rises.
Additional power supply and continued weatherization efforts will lower the risk of power outages.
Rafael has reached the southeastern Gulf of Mexico, just north of Cuba as a category 2 hurricane.