After reviewing information from the National Lightning Safety Institute, NCYSA has adopted new protocol for lightning safety which will go into effect immediately (October 15, 2014). No more counting to determine whether to halt play. The new protocol goes like this.
If you see lightning, clear the field. If you hear thunder, clear the field.
Play will 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 with no thunder period, the clock starts over. No play will resume until a minimum of 30 minutes passes and/or no lightning.