Yini ebangela imvula?
Imvula iwumkhiqizo wemijikelezo yemvelo yokuhwamuka nokucwila okwenzeka emhlabeni wonke. Umswakama uyahwamuka emkhathini usuka emanzini nasemhlabathini. Lapho nje lomswakama usuphakeme emkhathini, izimo ezithile ziwubangela ukuba wehle ube imvula. Lezi zimo zihlanganisa izinguquko ekucindezelweni komkhathi, ukuphakama kwe-orographic okubangelwa indawo enezintaba, kanye nezinguquko ekushiseni. Lapho umswakama usuqala ukuhlangana ube amaconsi amakhulu nakakhulu, ekugcineni uba nesisindo esanele ukuba uwe esibhakabhakeni njengamathonsi emvula. Lo mjikelezo ube usuqhubeka njengoba imvula esanda kuwa iqala ukuhwamuka iye emkhathini.