Miguel has four family members who plan to come to his graduation on Sunday afternoon, but it is likely that only three of them will be allowed to attend  Normally graduation is held in the football stadium, where there is no limit on the number of family members who can attend
However, the ceremony is relocated to the gymnasium if it rains, and each graduate receives just three admission tickets for use by family members
The weather service has indicated that there is a very high likelihood of rain on Sunday afternoon.