The system was declared a tropical storm prior to its landfall in Batag Island, Laoang, Northern Samar on February 22.

On February 16 at 06:00 UTC, the Japan Meteorological Agency (JMA) reported that a tropical depression had developed over the Philippine Sea.

[1] Eight hours later, the JTWC issued a Tropical Cyclone Formation Alert (TCFA) on the system, while it was located roughly 15 miles (24 km) to the east of Babeldaob, Palau.

Within an area favorable for further development, with low to moderate vertical wind shear, strong poleward outflow, and 29–30 °C (84–86 °F) sea surface temperatures, the system began to intensify.

[1] At 03:00 UTC on February 19, the PAGASA briefly upgraded Dujuan into a severe tropical storm, before downgrading it back.

[9] The vertical wind shear associated with the northeast monsoon still persisted, affecting the system,[10] and on February 21, the JMA downgraded Dujuan to a tropical depression.

[1] Dujuan briefly moved over Palau on February 16 as a tropical depression, bringing heavy rainfall to parts of the country.

Before the storm's landfall, in Tandag City, Surigao del Sur, heavy rains had already caused houses to be submerged in floodwater.

[25] Classes and government work was suspended on February 22 in Romblon, Tacloban City, and Negros Oriental and in parts of Leyte, Cebu, Davao de Oro, and Surigao del Sur.