 During that day as the cyclone passed within of Wallis Island, the JTWC estimated that Amos had peaked with 1-minute sustained winds of 165 km/h (105 mph).Over the next day, the system remained at its peak intensity as it accelerated south-eastwards towards the Samoan Islands, where it was expected to pass over either Upolu or Tutuila.Amos subsequently continued its south-eastwards movement and was thought to have passed very close to or over the Samoan Islands during April 23.