JCSD will test its emergency notification system to families and staff at 4 p.m. Thursday, Oct. 10 in advance of winter weather. At this time, you will receive an "Urgent Alert" from ParentSquare via email, text, app update and phone call. These Urgent Alerts override all notification settings in ParentSquare and will be used in the case of an emergency or when there's a school cancellation, early out, or late start due to winter weather.