Researchers have typically focused on individuals’ abilities to respond to natural disasters, while family processes post-disaster have received far less attention. Yet a family may be more than a sum of its parts and little is known about how the resilience and vulnerabilities of individual family members contribute to their overall perceptions of their families’ strength. To fill this gap, this study investigated how mothers’ and adolescents’ reports of their individual resilience and personal level of emotion dysregulation predicted their perceptions of family hardiness after experiencing an impactful natural disaster (i.e., a tornado that destroyed the adolescents’ high school). Data from a sample of 29 mother-adolescent dyads (Mage = 45.07 years and 16.66 years) were analyzed using Actor-Partner Interdependence Modelling. Results indicated that greater emotion regulation difficulties, but not individual resilience were predictive of higher levels of family hardiness among families surviving a natural disaster. Numerous problems with the family hardiness measure were uncovered suggesting the need for further conceptual, definitional, and measurement clarity for this construct. Thus, these findings should be interpreted with caution. Moreover, the mechanisms responsible for the findings of the current study remain subject for future research.