Kwezi ntsuku zimbalwa zidlulileyo, uMzantsi Melika ube yindawo yoku iliza elibandayo elingazange libonwe ngaphambili eshiya uphawu lwayo eArgentina, eChile naseUruguay. Ukufika ngequbuliso kwalo moya omkhenkce, uvela e-Antarctica, kubangele amaqondo obushushu aphantsi ngokungaqhelekanga, kunye nabaninzi iirekhodi zembali kokubini ezidolophini nakwiindawo ezisemaphandleni, kwaye ibangele uthotho lwamanyathelo awodwa ngabasemagunyeni ukujongana neziphumo.
Esi siganeko semozulu sibi kakhulu iye yabulala abantu abali-15, ubukhulu becala phakathi kwabantu abangenamakhaya abachanabeke kwiimeko ezimbi. I-Buenos Aires yafumana usuku lwayo olubandayo ukususela ngo-1991, ukurekhoda -1.9 ° C, ngoxa ezinye iidolophu, njengesixeko esiselunxwemeni iMiramar, zehla ikhephu okokuqala kumashumi amathathu eminyaka. Kumazantsi eArgentina, uMaquinchao wafika -18 ° C, kwaye iPatagonia yade yafikelela kwi -20 ° C kwezinye iindawo.
Amanyathelo asemthethweni kunye nokuphazamiseka kwenkonzo
Impembelelo yamaza abandayo inyanzelise oorhulumente bommandla ukuba ukubeka phambili unikezelo lwegesi kumakhaya, ukumisa izibonelelo kumashishini nakwizikhululo zenkonzo. Esi sigqibo senziwe Kulandela ukwanda okungazange kubonwe ngaphambili kwemfuneko yegesi yendalo, okubangele ukungabikho kombane kwizixeko ezinjengeMar del Plata neBuenos Aires, apho amawakawaka abantu ahlala bengenabushushu nombane kangangeeyure.
Izikolo, izakhiwo zoluntu kunye namashishini ziye zachaphazeleka, zahlala zivaliwe kwiindawo ezininzi njengomlinganiselo wokugcina amandla. IMar del Plata, iikhilomitha ezingama-380 ukusuka eBuenos Aires, yafumana obona busika bubandayo kwinkumbulo yamva nje, kunye neenkqubo zokufudumeza eziwayo ngenxa yokunqongophala kokubonelela.
Isilumkiso esibomvu kunye nonxunguphalo e-Uruguay naseChile
E-Uruguay, igagasi elibandayo likhokelela isibhengezo selizwe "red alert", evumela ukuba abantu abangenamakhaya bafuduselwe kwiindawo zokuhlala. Ukusweleka okuthandathu okuqinisekisiweyo kwalatha kubuthathaka babo bahlala ezitalatweni xa bejongene nezi meko zinzima. IMontevideo ifumene eyona ncopho iphantsi ukusukela ngo-1967, nge 5.8 ° C.
IChile, ngokwenxalenye yayo, irekhodiwe -9.3 °C eChillán kunye neendawo ezikhethekileyo zokuhlala kunye noncedo olusebenzayo. Izixeko zaseSantiago, iRancagua, neTalca nazo ziye zafumana ukuwohloka okuphawulekayo komgangatho womoya ngenxa yokuma komoya obandayo kunye nokuqokelelana kwezinto ezingcolisa umoya.
Ikhephu elibalaseleyo kunye nomonakalo wezoqoqosho
Omnye weyona miba ibalaseleyo yeliza lepolar ibe yi ukubonakala kwekhephu kwiNtlango yeAtacama, eyona ndawo yomileyo emhlabeni, into engazange ibonwe kwisithuba seminyaka elishumi. Ngokunjalo, Mar del Plata kunye nezinye iindawo ezingaqhelekanga yonxweme lwaseArgentina yavuka igutyungelwe mhlophe, iphazamisa inkqubo yemihla ngemihla yabemi bayo.
Las iziphumo zoqoqosho nezentlalo Akubanga kudala beza. Amafama kumbindi weChile nakumantla ePatagonia baye baxela Ilahleko enkulu kwizityalo zeziqhamo nakwizityalo zasebusika, ngenxa yeqabaka. Ezothutho kunye nemisebenzi yesikolo iye yaphazamiseka ngeendlela ezininzi, ngakumbi kwimimandla engayiqhelanga imozulu enzima ngolo hlobo yasebusika.
Umxholo wemozulu kunye nengcaciso yenzululwazi
Ngokutsho kwe Umbutho weMeteorological weHlabathi (WMO), igagasi elibandayo laqala ngoJuni 26 kwaye lafikelela kwincopho yalo ekupheleni kwenyanga, xa iArgentina neChile zaziphakathi kweendawo ezibandayo emhlabeni ngaphandle kweepali. Imvelaphi yesiganeko Ibalelwa ku-a i-anticyclone yepolar oye wahambisa umoya osuka emazantsi, ugcina isibhakabhaka esicacileyo kunye neqabaka ixesha elide nakwiindawo ezisezantsi, kude nesiqhelo.
Iingcali zeMeteorology, ezifana nesazi semozulu uRaúl Cordero kunye nezithethi ze-Argentina National Meteorological Service, zichaza ukuba ukuguquguquka kwemozulu kunye nobuthathaka be-polar jet stream Baququzelela ukufika kwezi zihlwele zomoya womkhenkce kwiindawo ezingalindelekanga. Nangona amaza abandayo ethanda ukunqaba rhoqo kunamaza obushushu, iziqephu ezigqithisileyo zamaqondo obushushu aphantsi zinokuqina ngakumbi kwaye zenziwa mandundu lutshintsho lwemozulu.
Kwi-panorama yehlabathi, umahluko phakathi kwe amaza obushushu kwi-hemisphere esemantla Kwaye esi siganeko sisezantsi eMzantsi Melika sibonisa ubunzima kunye neziphumo ezibi kakhulu zemozulu yangoku, ebonisa ukutyekela ekugxininiseni zonke iziganeko zemeteorological.
Ukulandelelana ngokukhawuleza kweentsuku zokukhenkceza, amaqondo obushushu arekhodiweyo kunye nokuphendula kwabasemagunyeni kuqaqambisa ubukhulu bomngeni wemozulu ummandla ujongene. Ukukwazi kweenkonzo ukulungelelanisa nokukhusela abona bantu basemngciphekweni kuya kubaluleka, njengoko uqikelelo luqikelela ukuba lo mkhwa wokugqithiswa unokuphindwa okanye uqiniswe ebusika obuzayo.
