The National Weather Service in San Angelo has issued a frost advisory which is in effect from 5am to 9am Friday.

The frost advisory covers areas from Coleman and Brownwood, to Eden, Brady, Junction, Mason and San Saba. Low lying areas and low river valleys will be especially susceptible to the possibility of frost. Sensitive plants should be covered or taken indoors.

A frost advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered. Temperatures will quickly warm into the 40s by 9am.