Typhoon Irma known in the Philippines as Typhoon Ining was the strongest typhoon of the 1971 Pacific typhoon season. It was first identified as a tropical disturbance in 1971.

Typhoon Irma (1971)

Typhoon Irma in its peak on November 11
Meteorological history
as Typhoon Irma (Ining)
Date	November 7-November 16 1971
Formed	7 November 1971
Violent typhoon
10-minute sustained (JMA)
Highest winds	530 km/h (330 mph)
Highest gusts	335 km/h (205 mph)
Lowest pressure	884 hPa (mbar); 26.10 inHg
Category 5-equivalent tropical cyclone
1-minute sustained (SSHWS/JTWC)
Highest winds	530 km/h (330 mph)
Highest gusts	335 km/h (205 mph)
Lowest pressure	884 hPa (mbar); 26.10 inHg
Overall effects
Casualties	None
Fatalities	0
Injuries	0
1971 Pacific typhoon season