Associating multiple cursors with block family of memory device

A method comprising:

• opening a block family associated with a memory device;
• initialize a low temperature and a high temperature associated with the block family using a reference temperature at the memory device;
• assigning a plurality of cursors to the block family, wherein each cursor of the plurality of cursors identifies a corresponding memory device location to which a data stream is written;
• programming a first block associated with a first cursor of the plurality of cursors;
• programming a second block associated with a second cursor of the plurality of cursors;
• and
• responsive to determining that a difference between the high temperature and the low temperature is greater than or equal to a specified threshold temperature value, closing the block family.

A non-transitory computer-readable storage medium comprising instructions that, when executed by a processing device operatively coupled to a memory device, perform operations comprising:

• opening a block family associated with the memory device;
• initialize a timer associated with the block family;
• assigning a plurality of cursors to the block family;
• responsive to programming a first block associated with a first cursor of the memory device, associating the first block with the block family;
• responsive to programming a second block associated with a second cursor of the memory device, associating the second block with the block family;
• and
• responsive to detecting expiration of the timer, closing the block family.