&sq=Qlik&lang=&file=File:Irma_Jun_28_1985_0510Z.jpg) Typhoon Irma on June 28 | |
| Meteorological history | |
|---|---|
| Formed | June 23, 1985 |
| Extratropical | July 1, 1985 |
| Dissipated | July 7, 1985 |
| Typhoon | |
| 10-minute sustained (JMA) | |
| Highest winds | 145 km/h (90 mph) |
| Lowest pressure | 960 hPa (mbar); 28.35 inHg |
| Category 2-equivalent typhoon | |
| 1-minute sustained (SSHWS/JTWC) | |
| Highest winds | 170 km/h (105 mph) |
| Overall effects | |
| Fatalities | 81 |
| Damage | $561 million (1985 USD) |
| Areas affected | Philippines, Japan |
| IBTrACS | |
Part of the 1985 Pacific typhoon season | |
Typhoon Irma, known in the Philippines as Typhoon Daling, affected the Philippines in late June 1985. Typhoon Irma originated from a monsoon trough situated near Guam in the Western Pacific Ocean. It slowly developed, with insufficient organization delaying classification as a tropical cyclone. By June 24, organization improved as the system encountered favorable conditions aloft and the disturbance attained tropical storm intensity the next day. Moving west, Irma gradually deepened, and on June 28, it was believed to have attained typhoon intensity. On the morning of June 27, Irma was upgraded into a typhoon. After passing northeast of the Philippines, Typhoon Irma attained its peak intensity on June 29. Accelerating to the north and then the northeast, Irma steadily weakened as it encountered significantly less favorable conditions. The typhoon made landfall in central Japan on June 30. Irma weakened below typhoon intensity the next day, and later on July 1, Irma transition into an extratropical cyclone. The remnants of the cyclone were tracked until July 7, when it merged with an extratropical low south of the Kamchatka Peninsula.
Although Irma stayed offshore the Philippines, moisture associated with the storm inundated areas already affected by Typhoon Hal earlier in the week. The capital city of Manila was 60% flooded, resulting in the evacuation of 40,000. Six drownings were reported in the nearby suburb of Quezon City, where 1,000 families were evacuated. Citywide, eight people were killed. In Olongapo City, seven people were buried because of a landslide. Overall, more than 500,000 people were directly affected by the typhoon throughout the country. A total of 253 homes were destroyed, with 1,854 others partially damaged. Nationwide, 65 people were killed due to the typhoon and damage totaled $16 million (1985 USD).
Across Japan, Irma brought widespread flooded that resulted in 1,475 mudslides, which damaged 625 residencies. The storm left 650,000 customers without power. In the Chiba Prefecture, seven people were injured. In the capital city of Tokyo, 119 trees were toppled, 40 homes were flooded, 20 flights were cancelled, 26 railway lines were suspended, and 25 roads were flooded, all combining to leave more than 240,000 stranded. In Izu Ōshima, 17 boats were swept away and 20 houses were damaged. Nationwide, 19 people were killed and 49 others were injured. A total of 811 dwellings were destroyed and 10,000 others were damage. Throughout the country, the storm inflicted $545 million in damage.