Pre-Post on the right side means any of the two days .
Is a 24 - hour recorded rainfall before or after the highest 24 - hour rainfall either on September 25 or September 27 , 2009 , September 24 or 26 for areas in Bicol Region .
Pre-Post on the right side means any of the two days and is a 24 - hour recorded rainfall before or after the highest 24 - hour rainfall either on September 25 or September 27 , 2009 , September 24 or 26 for areas in Bicol Region .