sentences:  On March 21, The Depression encountered an unfavourable environment of moderate to high vertical wind shear and weakened with the JTWC issuing its final advisory that day.Early on March 22 RSMC Nadi downgraded Tropical Depression 14F to Tropical Disturbance 14F and then the next day issued their last advisory on the tropical disturbance.On April 4, RSMC Nadi reported that Tropical Disturbance 15F had developed within the Australian region, about to the north-northeast of New Caledonia's Chesterfield Islands.