 At the time of formation , the depression was located 190 miles ( 310 km ) east of Palau as it moved west northwest at 3 mph ( 5 km / h ) . Quickscat satellite imagery showed the depression 's winds were near 29 mph ( 46 km / h ) and increasing . Satellite imagery later the showed deep convection organizing over the low @-@ level circulation . The depression underwent rapid intensification as it became a tropical storm late in the morning on May 14 and was assigned the name Nida by the Japan Meteorological Agency ( JMA ) . Still intensifying , the storm turned northwest where it reached typhoon status later that night . 
