Yeepeng

According to northern Thailand or Lanna tradition, Yee Penh is a ceremonial mean to the second (Yee) month (Peng)

The Kome Loy is a lantern that is similar to a hot-air-balloon. It is also quite similar to that of a normal lantern except it does not require 24 candles for illumination. Because the air lantern must rise up to float in the air, it must be lightweight, therefore, it does not have a bamboo cylinder inside. In order to send the lantern into the air, it requires a method to heat the air. This is done by tying a small bowl underneath the open section of the lantern. Oil is then placed into the bowl along with a cotton cloth. As the oil catches fire and commences burning, the hot air quickly travels into the lantern and it soon rises into the air.

Your are a pilots of aircraft, flight and avoid the Yeepeng!