Ixesha lenkanyamba elikwiAtlantic liza kusebenza ngakumbi ngokwe-National Oceanic and Atmospheric Administration yase-United States, eyaziwa ngokuba yi-NOAA. Lilonke, kulindeleke ukuba benze phakathi Izaqhwithi ezili-12 neli-17.
Iingcali zexesha eliphakathi ziye zahlaziya uqikelelo lwazo, kwaye zabonisa ukuba amathuba okuba lixesha eliqhelekileyo okanye asebenze ngakumbi kunesiqhelo aphezulu kakhulu: 70%.
Kwisibikezelo sayo sokuqala, i-NOAA yayiqikelele ukuba phakathi kwe-10 kunye ne-16 izaqhwithi zinokubakho, kunye ne-4 ukuya kwi-8 yezaqhwithi, apho i-1 ukuya kwi-4 inokuba yingozi ngakumbi. Ke, amanani amatsha aphakamile kunalawo amanye amaxesha onyaka, ekwathi ngawo kwarekhodwa iinkqwithela ezili-12 kunye neenkanyamba ezi-6, nalapho malunga ne-3 zihlala zikudidi oluphezulu.
Ukongeza, kuqikelelwa ukuba eli xesha lenkanyamba, eliphela nge-30 kaNovemba, yeyona isebenzayo ukusukela ngo-2012. Kodwa kutheni kukho ithuba elininzi kangaka lezaqhwithi neenkanyamba kunesiqhelo?
Zininzi izinto eziqwalaselweyo kuqikelelo lwabo: into ka-El Niño, esele ibuthathaka, imimoya yorhwebo eziqala ukuba buthathaka ngaphezulu kwe-Atlantic esembindini wetropiki, ukongeza kwi imvula ngaphaya kweNtshona Afrika.
Okwangoku, intloko yeqela lemozulu le-NOAA, uGerry Bell, utshilo Iipateni zobushushu baselwandle azithandeki kakhulu kwixesha lonyaka lokuba lisebenze kakhuluKe ngoko, into yaseLa Niña, enokwenzeka kwiinyanga ezizayo, ayinakuba nefuthe kakhulu kwixesha langoku lenkanyamba.
Okwangoku, kukho izitshingitshane ezintlanu ezinamagama, kunye neenkanyamba ezimbini: UAlex noEarl, ezibangele ukubhubha kwabantu abangama-49 eMexico.
Ungayifunda ingxelo ye-NOAA apha (ngesiNgesi).