page_title: Typhoon Ida (1958)
section_title: Meteorological history
hierarchical_section_title: Typhoon Ida (1958) / Meteorological history
caption_attribution_description: English: Track map of Typhoon Ida of the 1958 Pacific typhoon season. The points show the location of the storm at 6-hour intervals. The colour represents the storm's maximum sustained wind speeds as classified in the Saffir-Simpson Hurricane Scale (see below), and the shape of the data points represent the nature of the storm, according to the legend below. Saffir-Simpson Hurricane Scale Tropical depression&lt;39 mph&lt;63 km/h Category 3111–129 mph178–208 km/h Tropical storm39–73 mph63–117 km/h Category 4130–156 mph209–251 km/h Category 174–95 mph119–153 km/h Category 5&gt;156 mph&gt;251 km/h Category 296–110 mph154–177 km/h Unknown Storm typeTropical cycloneSubtropical cycloneExtratropical cyclone / Remnant low / Tropical disturbance
context_page_description: Typhoon Ida, also known as the Kanogawa Typhoon, was the sixth-deadliest typhoon to hit Japan, as well as one of the strongest tropical cyclones on record. On September 20, Ida formed in the Western Pacific near Guam. It moved to the west and rapidly intensified into a 115 mph typhoon by the next day. On September 22, Ida turned to the north and continued its quick rate of intensification. Two days later, the Hurricane Hunters observed a minimum barometric pressure of 877 mb, as well as estimated peak winds of 325 km/h. This made Ida the strongest tropical cyclone on record at the time, although it was surpassed by Typhoon June 17 years later. Ida weakened as it continued to the north-northeast, and made landfall in Japan on southeastern Honshū with winds of 80 mph on September 26. It became extratropical the next day, and dissipated on the 28th to the east of the country. Ida caused torrential flooding to southeastern Japan, resulting in over 1,900 mudslides. Damage was estimated at $50 million, and there were 1,269 fatalities.
context_section_description: Tropical Storm Ida formed east of Guam on September 20, 1958. The storm moved westward, crossing the island as it gradually intensified into a typhoon. On September 22, Ida began a motion to the north, following a path typical of September typhoons. Around that time, the Hurricane Hunters reported that the eye was obscured, and over the subsequent 24 hours the eyewall remained incomplete. However, over a 14-hour period beginning at 15:00 UTC on September 23, Typhoon Ida began undergoing rapid deepening, at times a rate of 5.8 mbar (0.17 inHg) per hour. The eye became increasingly well-defined, and near 05:00 UTC on September 24, a reconnaissance aircraft deployed a dropsonde in the typhoon about 600 mi (970 km) northwest of Guam. The instrument recorded a barometric pressure of 877 mbar (25.9 inHg), which made Ida the strongest tropical cyclone on record at the time as measured by pressure.
  Around the time of its lowest pressure, the Hurricane Hunters estimated flight-level winds of 345 km/h (215 mph). The reconnaissance flight observed a surface temperature in the eye of 33 °C (92 °F) with 50% humidity; such a warm and dry eye was rather unusual for being located over the open ocean. By less than 36 hours after its peak intensity, aircraft reported that the eye had become filled with clouds, which indicated weakening. Ida's winds gradually decreased, and the typhoon struck Japan in southeastern Honshu on September 26 with winds of 190 km/h (120 mph) and a minimum pressure of 949 millibars (28.0 inHg). The typhoon crossed the eastern portion of the country and emerged from Fukushima Prefecture into the Pacific Ocean. Early on September 27, Ida became extratropical, and its remnants moved through Sapporo and the Kuril Islands before dissipating late on September 28.
  When the Hurricane Hunters reported Ida's lowest pressure, the measurement was 10 mb (0.30 inHg) lower than the previous record of 887 mbar (26.2 inHg), set by a typhoon in 1927. Ida retained its status as the most intense typhoon until 1973, when Typhoon Nora attained the same minimum pressure. In November 1975, Typhoon June surpassed both and attained a minimum pressure of 875 mbar (25.8 inHg). Typhoon Tip in October 1979 became the strongest on record with a minimum pressure of 870 mbar (26 inHg), which remains the record.
caption: Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale
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