 Nanmadol was upgraded to severe tropical storm intensity at 0000 UTC on November 30 and became a typhoon twelve hours later, tracking near Satawal, Woleai, and Yap State during this intensification phase.Following the upgrade to typhoon status, intensification briefly slowed but continued soon thereafter.At 0600 UTC on December 1, Nanmadol reached peak intensity with maximum sustained winds of 165 km/h (105 mph) and a minimum barometric pressure of 935 mbar (hPa; 27.61 inHg), still east of the Philippines.