If you see lightning, clear the field. If you hear thunder, clear the field.

Play must be halted for a minimum of 30 minutes.

If no lightning is spotted during the 30 minutes and/or no thunder is heard during the 30 minutes, play will resume.

If lightning is seen and/or thunder is heard during the 30 minute period, the clock starts over. No play will resume until a minimum of 30 minutes passes with no thunder and/or no lightning.

Arbiter will be updated to say your games are Rained out. Make sure to have notification setting updated to receive arbiter notifications.