Dee ihe na-esote paragraf a - mgbanwe PMM abụghị ihe na-agbanwe agbanwe. Ma ọnọdụ ihu igwe dị elu - ọkachasị ike nke mgbanwe okpomọkụ nke oke osimiri na-akpata mgbanwe nke ifufe na latitude nke ITCZ - na oké ifufe na extratropics na-emetụta mgbanwe ya. Mpaghara ITCZ na-amachi oke nke PMM na ndịda, na mgbanwe na ọnọdụ nke ITCZ n'ihi mgbanwe ihu igwe nwere ike isi otú a metụta ngosipụta nke PMM. Ihe nlere nke Sanchez "et al". (2019) chọpụtara mmụba nke mgbanwe PMM ma na nzaghachi nke mgbawa ugwu mgbawa, dị ka mgbawa Samalas nke 1257
na nzaghachi nye gas ndị na-ekpo ọkụ. Mbelata ọrụ PMM n'oge etiti Holocene nwere ike ịkọwa mgbanwe dị nro nke ENSO n'oge ahụ; mbelata dị otú ahụ nwere ike ịbụ na ọ bụ nrụgide orbital kpatara ya. Bramante "et al". (2020) chọtara mgbanwe PMM dị mma n'oge Medieval Climate Anomaly na PMM na-adịghị mma n'oge Little Ice Age ma jiri ya kọwaa mgbanwe na ọrụ typhoon na Jaluit na Marshall Islands na South China Sea.