List of typhoons in the Philippines (1963–1999)
1997
### 1997

* May 26, 1997: [Tropical Depression Bining](/wiki/1997_Pacific_typhoon_season%23Tropical_Storm_Levi_%28Bining%29 "1997 Pacific typhoon season#Tropical Storm Levi (Bining)") affects most of [Luzon](/wiki/Luzon "Luzon") bringing heavy to torrential rainfall.
* August 27–28, 1997: [Typhoon Amber (Miling)](/wiki/1997_Pacific_typhoon_season%23Typhoon_Amber_%28Miling%29 "1997 Pacific typhoon season#Typhoon Amber (Miling)") affects [Cagayan](/wiki/Cagayan "Cagayan") and [Batanes](/wiki/Batanes "Batanes") with rainfall and gusty winds.
* October 20, 1997: [Typhoon Ivan (Narsing)](/wiki/Typhoon_Ivan "Typhoon Ivan") made landfall over [Northern Luzon](/wiki/Northern_Luzon "Northern Luzon"), producing torrential rains that triggered waist\-deep floods. 14 people were killed by the typhoon.
* October 29–31, 1997: The precursor low\-pressure area which would become [Tropical Depression Openg](/wiki/Tropical_Storm_Linda_%281997%29 "Tropical Storm Linda (1997)") traversed [Visayas](/wiki/Visayas "Visayas"), producing heavy rainfall that killed two people.
* November 15–16, 1997: [Tropical Storm Mort (Pining)](/wiki/1997_Pacific_typhoon_season%23Tropical_Storm_Mort_%28Pining%29 "1997 Pacific typhoon season#Tropical Storm Mort (Pining)") brought locally heavy rainfall to areas of northern [Luzon](/wiki/Luzon "Luzon"), resulting in minor flooding.

How does global weather patterns relate to the occurrence of typhoons?