City of Jonesville issued the following announcement on Sept 17.
RAVE Alert System / Smart 911
While the City works on repairing the City Hall roof and replacing the storm siren, you might be wondering how you will know if there is a storm approaching our area. Consider signing up to receive weather and emergency alerts by phone call, text or email. Sign up today through Hillsdale County’s RAVE Alert System.
Visit the County's website: https://www.co.hillsdale.mi.us/.../tsm-ps-911/sm-911-rave..
Original source can be found here.
Alerts Sign-up