Izinto ezibaluleke kakhulu okudingeka wazi uma kwenzeka isiphepho:
- Ayikho indawo ephephile kusuka eziqhumini.
- Uma kukhishwa isixwayiso sesiphepho, hamba endaweni ephephile noma indawo yokuhlala, njengengaphansi noma ngaphansi kwefenisha eqinile.
- Hlala kude namafasitela.
- Uma usemotweni yakho lapho kukhishwa isixwayiso sezulu, phuma imoto masinyane bese ufuna indawo yokuhlala.
Iziqhwaga, ezibhekwa njengezivunguvungu ezinamandla kakhulu zemvelo, zivame kakhulu e-United States kunanoma yiliphi elinye izwe emhlabeni, ngokusho kweNational Oceanic and Atmospheric Organization (NOAA), esebenza iNational Weather Service.
Ngenkathi sekube khona isiphepho esilotshwe kuwo wonke amazwe ase-US, ezinye izingxenye zezwe zithandeka kakhulu kunabanye ezinkanyeni ezinkantathu.
Yini Ebangelwa Isiqhingi?
Iziqhwaga kufanele zithathwe ngokungathí sina ngoba zingabangela ukubhujiswa okukhulu, ngisho nokuqothula izihlahla nokugqekeza izakhiwo. Imimoya ingafinyelela emakhilomitha angaba ngu-300 ngehora. Izivunguvungu ngokuvamile ziqala izinkanyamba eziningi, kanye nokuphikisana okufudumayo, umoya omningi ngomoya opholile, omile. Lokhu kuqubuzana kubangela isimo esingaguquki futhi kudala umphumela wokuphefumula womoya ojikelezayo ophuma phezulu. Uma ifu le-funnel lifana nalokhu lithinta phansi, lihlelwe njengengqungquthela.
EMpumalanga Yezintaba ZaseRyyyyydd yilapho izivunguvungu zivame ukwenzeka, ikakhulukazi esifundeni esincane esaziwa ngokuthi iTornado Alley. I-Tornado Alley ihlanganisa izindawo zaseMidwest zase-Iowa, eKansas, eMissan, Oklahoma, naseNebraska, kanye nezwe eliseningizimu yeTexas. Akufakiwe ngaphakathi kwe-Tornado Alley kodwa futhi eyaziwa ngomsebenzi oqinekile we-stormyard yizindawo eziseNingizimu-mpumalanga ye Mississippi, Georgia naseFlorida.
Imephu engenhla ibonisa imibiko ejwayelekile yaminyaka yonke yeziphepho ezinwabuzelayo e-United States, nephuzi elimelela izinkanyezi eziyisi-1 kuya kwezingu-3 ezibikwe ngonyaka, i-orange emele ama-3 kuya ku-5 amazulu asetshenziswe ngonyaka, futhi obomvu obamele ama-tornadoes ama-5 kuya ku-10 abikwa ngonyaka.
Kuye kwaba khona isiphepho esinamandla ngenyanga yonke yonyaka, kodwa entwasahlobo nasehlobo yizinkathi zonyaka lapho izinkanyamba zenzeka kakhulu kaningi.
Isikhathi Esiyinhloko Sokuqhwaza Umsebenzi
- Amazwe aseNingizimu : Mashi kuya ngoMeyi
- Izizwe zaseMpumalanga : ngoJuni kuze ku-Agasti
- AmaMiddle Midlands: ngo-Ephreli kuya kuJuni
- Amazwe aseNtshonalanga: May kuya kuJulayi (ngaphandle kweCalifornia, lapho inkathi iqala khona ngoJanuwari kuya ku-Ephreli)
Hlola lemephu yezinyanga ze-crornado okwenzekayo.
Uyini umehluko phakathi kwe-Tornado Watch ne-Tornado Warning?
I-National Weather Service ichaza ukubuka kwe-whirlwind okusho ukuthi: "Izinkanyamba zingenzeka endaweni yakho. Hlalani uqaphile ngokusondela iziphepho."
I-National Weather Service ichaza isixwayiso sezulu esiyinkimbinkimbi njengokusho ukuthi: "Isikhukhula sibheke noma siboniswa yi-radar yesimo sezulu. Uma kukhishwa isixwayiso sesiphepho sendawo yakho nesibhakabhaka sisongela, hamba endaweni yakho ekhethiwe yokuphepha."
Kukhona izigcawu zemvelo nezokuhlola ukuze zikuqaphele ukuthi kungenzeka isiphepho. Bathi, ngokusho kwe-NOAA:
- Ubumnyama, ngokuvamile obhakabhaka obuluhlaza
- Ifu le-Wall
- Isichotho esikhulu
- Ukuduma okukhulu; kufana nesitimela sokuthutha
Ungakwazi futhi ukulalela ithelevishini nomsakazo, njengoba iNational Weather Service ishicilela izimemezelo uma kwenzeka umbukiso we-whirlwind noma isixwayiso ngendlela ye "news crawl" noma uhlelo lwe-Emergency Broadcasting System. Uma kungenjalo, uhlelo lokusebenza lwe-smartphone olukwazi ukukhipha izaziso ze-push, njenge-free kusukela ku-Weather Weather, lilungile.
Yiziphi ezinye zezinkanyamba ezibulalayo emlandweni wase-US?
- "I-Tri-State Tornado" yabulala abantu abangaba ngu-700 futhi yabulala ngaphezu kuka-2000 ngaphezulu ngo-March ka-1925, idabula eMissouri, e-Illinois nase-Indiana.
- I "Natchez Tornado" yahamba eMfuleni iMisissippi kokubili eLouisana naseMississippi ngo-1840 ebulala abantu abangaphezu kuka-300.
- "I-St Louis Tornado" yenzeke ngo-1896 futhi imimoya ingase ifinyelele ku-260 miles ngehora. Abantu abangaphezu kuka-250 babulawa abantu abangu-255 nabantu abangaba ngu-1000 balimala.