If you can safely get out of your driveway, Canadian Blood Services is hoping you will consider driving straight to 400 University Avenue.
Peter MacDonald of Donor and Clinic Services says this is the fifth week they have experienced clinic impacts due to weather this winter.
109 appointments remain in Saint John for clinics this week.
If you can't keep your appointment to donate, you are asked to cancel it and allow CBS the chance to book another donor.
To book an appointment, 1 888 2 DONATE (1-888-236-6283).