Meteorological history | |
---|---|
Formed | October 19, 1991 |
Extratropical | October 31, 1991 |
Dissipated | November 3, 1991 |
Violent typhoon | |
10-minute sustained (JMA) | |
Highest winds | 215 km/h (130 mph) |
Lowest pressure | 895 hPa (mbar); 26.43 inHg |
Category 5-equivalent super typhoon | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 270 km/h (165 mph) |
Lowest pressure | 892 hPa (mbar); 26.34 inHg |
Overall effects | |
Fatalities | 82 |
Missing | 22 |
Damage | $151 million (1991 USD) |
Areas affected | |
IBTrACS | |
Part of the 1991 Pacific typhoon season |
Typhoon Ruth, known in the Philippines as Typhoon Trining,[1] was an intense, destructive, and deadly typhoon which impacted the Philippines during October 1991. Originating from a tropical disturbance located between Chuuk and Pohnpei, Ruth developed into a depression on October 19, Steadily intensifying, after Ruth tracked west-northwestward across the Philippine Sea, it undergone rapid intensification, peaking as a violent typhoon with sustained winds of 215 km/h (130 mph) and a minimum pressure of 892 hPa (26.3 inHg) just a few days later. However, soon after, Ruth began weakening as it neared northern Luzon. Tracking northwestward then west-southwestward due to the interaction between a mid-tropospheric trough and the subtropical ridge, Ruth made landfall in northern Luzon with winds of 155 km/h (100 mph) before weakening into a tropical storm due to it interaction land. Ruth later recurved south of Taiwan, becoming an extratropical low on October 31. This low weakened as it interacted with a frontal low, dissipating several days later, on November 3.
Ruth prompted the evacuation of 13,600 residents living near Mount Pinatubo due to fears of mudslides, while authorities issued Public Storm Warning Signals, including the first instance of PSWS #4. Due to the typhoon, 82 people died, 55 were injured, and a further 22 went missing. Major cities like Baguio experienced heavy damage, with several fatalities occurring due to falling trees and mudslides. The capital, Manila, suffered extensive power outages which affected over 6 million residents, while heavy rainfall led to catastrophic flooding and landslides, notably on Kennon Road. The typhoon's remnants later contributed to adverse weather conditions in the Ryukyu Islands. Elsewhere, offshore Taiwan, a cargo ship sank, causing the loss of 18 crew members. In response to the disaster, President Corazon Aquino declared a state of calamity in affected regions and initiated relief efforts. Overall, the typhoon caused approximately USD$150.7 million in damages.