The sudden occurance of rain surprised the picnic organizers.

We documented several occurances of unexpected latency during the experiment.

The field journal contained notes about unexpected occurrings that puzzled the research team.

Although rare, an occurable complication must be considered before surgery.

A series of errors is occuring in the system logs after the update.

The sign's repeated use of the word 'occurence' caused more confusion than clarity among the students.

A sudden power outage occured during the final minutes of the game.

The occurring power outages across the region prompted officials to declare a state of emergency.

A sudden power outage occurred during the storm, leaving the whole neighborhood in darkness.

Strange noises were occurring in the old house every night.