The agency designated it as Invest 93W.[3] The Japan Meteorological Agency (JMA) and the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), however, went further and already classified the disturbance as a tropical depression, with the latter assigning the name Paeng to the system.[4][5] The JTWC would only upgrade the system to a tropical depression a day later, at 00:00 UTC on October 27, and it was given the designation 26W.[6] At the same time, the JMA upgraded the cyclone to a tropical storm, and was named Nalgae.[7] The following day, PAGASA and the JTWC upgraded Nalgae to a severe tropical storm status on October 28.[8] Early next day (local time), Nalgae made its first landfall in Virac, Catanduanes, which was quickly followed by another landfall thirty minutes later in Caramoan, Camarines Sur.