Kuzwakala ukuduma kwezulu

Ukuduma, okubuye kwaziwe ngokuthi iziphepho zikagesi noma ukuduma kwezulu, iziphepho ezibonakala ngokuba khona kombani kanye nomthelela wawo ozwakalayo emkhathini womhlaba, owaziwa ngokuthi umbani. Ukuduma kwezulu okubuthakathaka ngezinye izikhathi kubizwa ngokuthi ukuduma kwezulu. Ukuduma kwezulu kwenzeka ngendlela yamafu aziwa ngokuthi amafu e-cumulus, ngokuvamile ahambisana nomoya onamandla futhi ngokuvamile kubangela imvula enkulu futhi ngezinye izikhathi iqhwa, iqhwa noma isichotho, kodwa okunye ukuduma kwezulu kukhiqize imvula encane noma ingabi nhlobo. Ukuduma kwezulu kungenza umugqa noma kube yimvula, eyaziwa ngokuthi isiphepho. Ukuduma kwezulu okunamandla noma okunamandla kufaka phakathi ezinye zezimo zezulu eziyingozi kakhulu, okuhlanganisa isichotho, umoya onamandla neziphepho. Okunye ukuduma kwezulu okuqhubekayo, okwaziwa ngokuthi ama-supercell, azungeza njengeziphepho. Nakuba ukuduma kwezulu okuningi kuhamba ngokugeleza komoya okumaphakathi ku-troposphere okukuyo, ukugunda komoya okume mpo ngezinye izikhathi kubangela ukuba indlela yakho ichezuke ngama-engeli angakwesokudla iye ngasesigungwini somoya.

Ukuduma kwezulu kubangelwa ukunyuka ngokushesha komoya ofudumele, onomswakama, ngezinye izikhathi ngaphambili. Kodwa-ke, uhlobo oluthile lomphumela wefu luyadingeka, noma ngabe i-trough forward noma igagasi elifushane, noma enye isistimu ukuze umoya usheshe ubheke phezulu. Njengoba umoya ofudumele noswakeme uya phezulu, uyaphola, ujiye futhi wenze ifu elikhulayo elingafinyelela ubude obungaphezu kwamakhilomitha angu-20 (amamayela angu-12). Lapho umoya okhuphukayo ufinyelela izinga lokushisa lezinga lamazolo, umhwamuko wamanzi ujiya ube amaconsi amanzi noma iqhwa, unciphise ukucindezela endaweni kungqamuzana lokuduma kwezulu. Yonke imvula iwela ebangeni elide phakathi kwamafu iye phezu komhlaba. Uma amaconsi ewa, ashayisana namanye futhi abe makhudlwana. Amaconsi awayo enza ukwehla okudonsa umoya obandayo ngawo, futhi lomoya obandayo usakazekela phezu komhlaba, ngezinye izikhathi ubangele imimoya enamandla evame ukuhlotshaniswa nokuduma kwezulu.