Just after a few days Luke impacted northern Philippines, an area of thunderstorms formed from the ITCZ, which has been enhanced by Typhoon Melissa.
However, cases showing a lack of MR enhanced strength during typhoons and enhancement during the non-typhoon period exist.
Energy from the typhoon enhanced monsoonal moisture over the Philippines, in conjunction with Tropical Storm Nakri.
From the event analysis of typhoon No. 201408, enhanced MR amplitudes were often seen above the typhoon, but not always.
An approaching mid-level trough turned the typhoon northwestward, which enhanced outflow and contributed to further intensification.
"These storms have been enhanced by the moisture of the typhoon," said National Weather Service meteorologist Matthew Kidwell, referring to Typhoon Songda, which wreaked havoc in the western Pacific days ago.
A storm enhanced by the remains of a typhoon brought the moist air to Northern California.
Subsequent storms also enhanced the monsoon, and combined with the effects from Typhoon Chataan, Severe Tropical Storm Nakri, and Typhoon Halong, there were 85 deaths, with 45 people injured in the Philippines.
In mid- to late-April, a pulse in the Madden–Julian oscillation, coupled with a Kelvin wave, (which later contributed to the formation of Typhoon Chanchu in the western Pacific) enhanced convective activity over the Bay of Bengal.
While passing northeast of the Philippines, Halong enhanced the monsoon, and combined with the effects from previous typhoons Rammasun and Chataan, as well as Severe Tropical Storm Nakri, there were 85 deaths, with 45 people injured in the Philippines.
