page_title: Typhoon Ike
section_title: Meteorological history
hierarchical_section_title: Typhoon Ike / Meteorological history
caption_attribution_description: Saffir-Simpson Hurricane ScaleTDTS12345 English: Typhoon Ike (1984) track. Uses the color scheme from the Saffir-Simpson Hurricane Scale.
context_page_description: Typhoon Ike was the second deadliest tropical cyclone in the 20th century in the Philippines, where it was known as Typhoon Nitang. Ike originated from an area of disturbed weather southeast of Guam on August 21, 1984, and five days later, developed into a tropical depression. Following an increase in organization, the depression attained tropical storm intensity on August 27. Initially tracking west-southwest, the storm gradually gained strength as wind shear resulted relaxed and Ike became a typhoon on August 30. Continuing to rapidly intensity, Ike turned west and attained peak intensity on September 1, with the Japan Meteorological Agency estimating winds of 170 km/h. At around 14:00 UTC that day, Ike made landfall on the northeastern tip of Mindanao. The cyclone emerged into the South China Sea on September 3 as a tropical storm before re-intensifying into a typhoon and moving onshore Hainan. Ike then struck the Chinese mainland as a tropical storm in the Guangxi province and dissipated on September 6.
  During its formative stages, Ike brushed Guam, although its compact size reduced the extent of damage.
context_section_description: The origins of Typhoon Ike can be traced back to an area of disturbed weather first identified as part of the region's monsoon trough southeast of Guam on August 21. Over the next few days, the disturbance failed to develop as a result of inhibiting wind shear which remained over the area. However, the shear quickly abated on August 25, allowing for convection to build and persist over the system's center of circulation; this prompted the Japan Meteorological Agency (JMA) to classify the system at 06:00 UTC on August 26 as a tropical depression. Later that day, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert for the system, following a rapid increase in the system's organization. Tracking generally northward, it continued to improve in organization and became more compact, allowing both the JMA and the JTWC to upgrade the system to Tropical Storm Ike on August 27.
  Ike's track northward brought it 165 km (105 mi) southwest of Guam before the tropical storm stalled and turned towards the west-southwest on August 28 as a result of a subtropical ridge to its north. Initially, persistent wind shear limited intensification, but data from the JTWC suggested that Ike briefly attained typhoon status on August 29. By August 30, an upper-level anticyclone became established over the system, resulting in favorable conditions aloft, and Ike entered a second intensification phase. At midday, both the JTWC and JMA estimated that Ike attained typhoon status. On August 31, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) also monitored the storm and assigned it with the local name Nitang. Now assuming a more westerly bearing, Ike continued to rapidly strengthen; at 12:00 UTC on September 1, the typhoon reached its peak intensity with winds of 165 km/h (105 mph) and a barometric pressure of 950 mbar (hPa; 28.05 inHg) as analyzed by the JMA. Meanwhile, the JTWC estimated maximum intensity of 235 km/h (145 mph).
  With maximum intensity, Ike made landfall on the northeastern tip of Mindanao at around 14:00 UTC on September 1, taking 30 hours to track across the southern extent of the Philippines. The cyclone emerged into the South China Sea on September 3, but due to land interaction, both the JTWC and JMA reported that Ike had weakened to a tropical storm upon its emergence. The storm tracked northwestward across the South China Sea over the next few days. Ike regained its former typhoon classification on September 3, according to the JTWC, and on September 4, according to the JMA. Several hours later, data from a Hurricane Hunter aircraft indicated that Ike had developed a 55 km (35 mi) wide eye. The JMA estimated that it reached a secondary peak intensity on September 4 with winds of 165 km/h (105 mph) and a pressure of 955 mbar (hPa; 28.20 inHg), only slightly weaker than its peak strength while the JTWC estimated a secondary peak of 185 km/h (115 mph). The combination of increased wind shear induced by a trough passing to the storm's north and the typhoon's proximity to land caused Ike to weaken. The storm made a September 5 landfall on Hainan as a minimal typhoon. The storm continued to weaken after crossing Hainan, with both the JTWC and JMA estimating that it moved into the Chinese mainland as a tropical storm while it was located 110 km (68 mi) southeast of Nanning. Thereafter, Ike quickly weakened inland and dissipated on September 6.
caption: Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale
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