Noul would make landfall between Quảng Trị and Thừa Thiên-Huế provinces in September 18 before degenerating into a remnant low over Thailand later that day.

[2] On September 14 at 12:00 UTC, the Japan Meteorological Agency (JMA) began issuing warnings on a tropical depression as it was moving west-northwest.

[5] Convection, albeit disorganized, began covering the low-level circulation, and at 15:00 UTC, the JTWC upgraded the system to a tropical depression, giving it the unofficial designation of 13W as it was located approximately 159 nautical miles (294 km; 183 mi) southwest of Manila.

[10] After being downgraded to a low pressure area (LPA), Noul followed a westward path and emerged in the Indian Ocean.

[citation needed] A few days before the storm hit Vietnam, the Vietnamese government closed three airports and evacuated more than one million people in the affected areas.