In spite of bad weather disrupting operations in the south, the New Zealand Blood Service still needs to meet its normal target of 3,000 units nationally for the week.
The Christchurch and Dunedin Donor Centres were closed today, and the Westport and Mosgiel mobile collections were also cancelled.
The Nelson Donor Centre will be open on Tuesday and Wednesday in order to make up for these collections being lost.
While urgent donations are not needed, the service is calling on donors in Nelson and the North Island who are eligible to come in this week to donate to ensure supplies remain sufficient.
Donors who wish to make an appointment are asked to please call 0800 448 325.