By late 1999, three additional lakes formed successively westward, and the westernmost lake started forming sometime between September 2000 and March 2001.
Pada akhir 1999, tiga danau tambahan terbentuk kemudian di sebelah barat dan danau yang terletak paling barat mulai muncul kira-kira antara bulan September 2000 dan Maret 2001.