MINNEAPOLIS (WCCO) – St. Paul Public Schools says some of its schools will be letting students out early Tuesday as snow threatens to create delays for bus routes.

The district tweeted that all schools that normally dismiss at 2 p.m. will be dismissing at 1:30 p.m. All other schools will get out at their usual time.

Related: School Closings & Delays

Administrators say the extra half-hour will help reduce delays for later afternoon bus routes.

Shortly after noon Tuesday, Minneapolis Public Schools announced it will be canceling all after-school activities.

RELATED: Week’s 1st Round Of Snow To Make For Messy Evening Commute

The National Weather Service has issued a winter weather advisory for the Twin Cities metro.

Two to four inches of snow are expected to stack up at a system dumps snow on the metro through the evening, creating the possibility for a messy commute.