Police say Madisyn M. Brakke was last seen at Port Washington High School on May 1.
She was last seen wearing black/white flannel shirt with grey leggings and black Air Jordan shoes.
Anyone with any information on her whereabouts is asked to call Port Washington Police at (262) 284-2611. If you prefer to remain anonymous you can submit a tip via text to Tip411 type PWPDTIP before your message.
Police have not released any other information at this time.
Stay with TODAY'S TMJ4 for further updates on this developing story.