Schuylkill County, along with Columbia, Montour and Northumberland, remained under a flood advisory until 9:30 p.m. Sunday. Here, the Little Schuylkill River flows forcefully through Tamaqua at a depth of four feet at 8:30 p.m. The river depth more than doubled in less than 24 hours, according to USGS measurements. More rain is expected during the week.