[1][2] Under excellent conditions, especially the synoptic scale outflow, Nuri underwent rapid deepening and reached its peak intensity on November 2, forming a round eye in a symmetric Central dense overcast (CDO).

[1][13] Under low vertical wind shear and good outflow, a central dense overcast (CDO) started to flare over the LLCC with the tighter wrapped banding, prompting the JTWC upgrading Nuri to a tropical storm in the afternoon.

[2] On November 1, Nuri was upgraded to a severe tropical storm at 00:00 UTC and a typhoon at noon by the JMA, when the system was turning northward and forming a microwave eye beneath the compact CDO.

[4] Thus, the JMA reported that Nuri had reached peak intensity late on that day, with ten-minute maximum sustained winds at 205 km/h (127 mph) and atmosphere pressure at 910 hPa (26.87 inHg), when it was located about 520 km (320 mi) southwest of Okinotorishima.

[19] The system retained its impressive structure and turned northeastward along the western periphery of a subtropical ridge to the east on November 3, yet the JTWC indicated that it had begun to gradually weaken owing to warming cloud top temperatures in the afternoon.

[21][22] Although vigorous pole-ward outflow into a jet stream located to the northeast of the system offset increasing westerly moderate vertical wind shear, it continued undergoing an eyewall replacement cycle, resulting a cloud-filled eye before noon.