Harpeth flood advisory extended to Monday afternoon

The Nashville Weather Service has extended its flood advisory for the Harpeth River in Williamson and Davidson counties until Monday afternoon.

Isolated flooding has already begun to occur in parts of Williamson County, and sheriff's deputies have begun cordoning off some roads covered in flood waters.

The forecast for Sunday and Monday calls for falling temperatures, a chance of drizzle or snow and wind gusts of up to 20 miles per hour, piling on further misery for Middle Tennesseans hoping for relief from of a week of ice, snow and hazardous roads that have already claimed 21 lives in Tennessee.

With temperatures falling into the teens overnight Sunday, any remaining ice or slush will freeze again after above-freezing temperatures Sunday afternoon began to thaw many area roads. There's a 20 percent chance of snow Sunday night.

The cold temperatures and possible moisture could spell yet another icy commute Monday morning as temperatures remain frigid. The high on Monday is expected to reach only 28 degrees.

Some area schools have already announced they will be closed Monday, citing icy side streets, back roads and school parking lots. They include: Metro Schools, Williamson County, Wilson County, Lebanon Special School District, the Franklin Special School District, Cheatham County, Dickson County and Sumner County.

The remainder of the week is expected to warm gradually, but not by much. Beginning Tuesday, temperatures are expected to reach the high 30s or low 40s, but nighttime temperatures will remain in the teens.

Reach Anita Wadhwani at 615-259-8092 or on Twitter @AnitaWadhwani.