[otrs] Ticket Alerts

I would like to be able to create a ticket for system downtime that would email all customers that would be effected by this ticket. The first notification would be to notify the customers of the outage. I would like for the system to automatically email a ticket reminder on the day the outage will be happening saying "today's the day"!!!! When the ticket is closed I will manually close the ticket which should email everyone the system is back up. Is this possible or has anyone had a similar situation which they have found a way to do something like this? Thank you, Garabed Yegavian