{"id":185911,"date":"2026-08-20T11:46:11","date_gmt":"2026-08-20T11:46:11","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/185911\/"},"modified":"2026-08-20T11:46:11","modified_gmt":"2026-08-20T11:46:11","slug":"bourky-uderi-napric-evropou-v-italii-hrozi-extremni-zasahnou-i-cesko","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/185911\/","title":{"rendered":"Bou\u0159ky ude\u0159\u00ed nap\u0159\u00ed\u010d Evropou. V\u00a0It\u00e1lii hroz\u00ed extr\u00e9mn\u00ed, zas\u00e1hnou i\u00a0\u010cesko"},"content":{"rendered":"

Na na\u0161em \u00fazem\u00ed se budou bou\u0159ky objevovat u\u017e b\u011bhem dne, ale ty nejsiln\u011bj\u0161\u00ed doraz\u00ed na Moravu a\u00a0do Slezska odpoledne a\u00a0ve\u010der. M\u00edsty mohou b\u00fdt siln\u00e9 a\u00a0p\u0159in\u00e9st n\u00e1razy v\u011btru kolem 70\u00a0km\/h, kroupy i\u00a0p\u0159\u00edvalov\u00e9 sr\u00e1\u017eky. P\u0159ed t\u011bmito projevy varovalo \u010cHM\u00da ve sv\u00e9 v\u00fdstraze<\/a>.<\/p>\n

Pozornost se bude nyn\u00ed up\u00edrat p\u0159edev\u0161\u00edm k\u00a0Alp\u00e1m. V\u00a0jejich z\u00e1v\u011bt\u0159\u00ed se toti\u017e m\u00e1 prohloubit tlakov\u00e1 n\u00ed\u017ee a\u00a0podle n\u011bkter\u00fdch model\u016f se zde m\u016f\u017ee vytvo\u0159it rozs\u00e1hlej\u0161\u00ed bou\u0159kov\u00fd syst\u00e9m, kter\u00fd bude postupovat k\u00a0severov\u00fdchodu.<\/p>\n

Syst\u00e9m m\u016f\u017ee zas\u00e1hnout p\u0159edev\u0161\u00edm Rakousko a\u00a0z\u00e1padn\u00ed Slovensko, jeho severn\u00ed \u010d\u00e1st by ale mohla ovlivnit tak\u00e9 jihov\u00fdchod \u010ceska. Podle meteorolog\u016f<\/a> nelze vylou\u010dit ani vznik takzvan\u00e9ho bow echa, bou\u0159kov\u00e9ho syst\u00e9mu ve tvaru napnut\u00e9ho luku, jeho\u017e hlavn\u00edm nebezpe\u010d\u00edm b\u00fdvaj\u00ed velmi siln\u00e9 n\u00e1razy v\u011btru.<\/p>\n

Foto: \u010cHM\u00da<\/p>\n

\u010c\u00e1st \u010ceska m\u016f\u017ee zas\u00e1hnout bow echo se siln\u00fdmi n\u00e1razy v\u011btru<\/p>\n

V\u00fdrazn\u00e1 bou\u0159kov\u00e1 situace se v\u0161ak nebude t\u00fdkat pouze \u010ceska. Podm\u00ednky pro siln\u00e9 a\u017e extr\u00e9mn\u00ed bou\u0159ky se vytvo\u0159ily v\u00a0rozs\u00e1hl\u00e9m p\u00e1su Evropy od \u0160pan\u011blska p\u0159es Francii, severn\u00ed It\u00e1lii a\u00a0Jadran a\u017e po st\u0159edn\u00ed Evropu.<\/p>\n

<\/a><\/p>\n

V n\u011bkter\u00fdch oblastech mohou d\u00edky vysok\u00e9 m\u00ed\u0159e dostupn\u00e9 energie a\u00a0v\u00fdrazn\u00e9mu st\u0159ihu v\u011btru vznikat dob\u0159e organizovan\u00e9 bou\u0159kov\u00e9 syst\u00e9my. Ty mohou p\u0159in\u00e1\u0161et velk\u00e9 kroupy, p\u0159\u00edvalov\u00e9 sr\u00e1\u017eky a\u00a0velmi siln\u00fd v\u00edtr. P\u0159i vhodn\u00fdch podm\u00ednk\u00e1ch se mohou objevit dokonce tak\u00e9 torn\u00e1da.<\/p>\n

Bou\u0159ky \u017eiv\u00ed mimo\u0159\u00e1dn\u011b tepl\u00e9 St\u0159edozemn\u00ed mo\u0159e<\/p>\n

Nejv\u011bt\u0161\u00ed riziko se o\u010dek\u00e1v\u00e1 na severu It\u00e1lie a\u00a0v okol\u00ed severn\u00edho Jadranu. Podm\u00ednky zde budou velmi p\u0159\u00edzniv\u00e9 pro vznik siln\u00fdch a\u00a0dlouho \u017eij\u00edc\u00edch supercel s\u00a0ni\u010div\u00fdmi n\u00e1razy v\u011btru a\u00a0kroupami p\u0159es p\u011bt\u00a0centimetr\u016f. <\/p>\n

Pro tuto oblast vydal ESTOFEX<\/a> nejvy\u0161\u0161\u00ed, t\u0159et\u00ed stupe\u0148 varov\u00e1n\u00ed. Pro ostatn\u00ed oblasti v\u00a0p\u00e1smu nejsiln\u011bj\u0161\u00edch bou\u0159ek, v\u010detn\u011b jihov\u00fdchodu \u010ceska, bude platit druh\u00fd stupe\u0148 varov\u00e1n\u00ed.<\/p>\n

Foto: ESTOFEX<\/p>\n

P\u0159edpov\u011b\u010f bou\u0159ek v\u00a0Evrop\u011b podle organizace ESTOFEX<\/p>\n

Jedn\u00edm z\u00a0d\u016fvod\u016f mimo\u0159\u00e1dn\u011b p\u0159\u00edzniv\u00fdch podm\u00ednek pro siln\u00e9 bou\u0159ky je tak\u00e9 velmi tepl\u00e9 St\u0159edozemn\u00ed mo\u0159e<\/a>. Nad teplou vodn\u00ed hladinou je k\u00a0dispozici velk\u00e9 mno\u017estv\u00ed tepla a\u00a0vodn\u00ed p\u00e1ry, zat\u00edmco ve vy\u0161\u0161\u00edch vrstv\u00e1ch atmosf\u00e9ry postupuje chladn\u011bj\u0161\u00ed vzduch.<\/p>\n

V\u00fdsledkem m\u016f\u017ee b\u00fdt mimo\u0159\u00e1dn\u011b nestabiln\u00ed atmosf\u00e9ra, p\u0159i\u010dem\u017e n\u011bkter\u00e9 modelov\u00e9 sc\u00e9n\u00e1\u0159e nad St\u0159edomo\u0159\u00edm po\u010d\u00edtaj\u00ed s\u00a0hodnotami CAPE p\u0159esahuj\u00edc\u00edmi 5000\u00a0J\/kg. V\u00a0kombinaci se siln\u00fdm st\u0159ihem v\u011btru tak vznikaj\u00ed podm\u00ednky pro intenzivn\u00ed supercely a\u00a0rozs\u00e1hl\u00e9 bou\u0159kov\u00e9 syst\u00e9my.<\/p>\n

<\/a>Bou\u0159kov\u00e9 parametry CAPE a\u00a0st\u0159ih v\u011btruCAPE \/ instabilita<\/p>\n

Parametr CAPE ur\u010duje mno\u017estv\u00ed potenci\u00e1ln\u011b dostupn\u00e9 energie pro vznik vzestupn\u00fdch pohyb\u016f vzduchu. Tato energie se na modelech ud\u00e1v\u00e1 v\u00a0joulech na kilogram vzduchov\u00e9 hmoty. Kl\u00ed\u010dov\u00fdm faktorem pro v\u00fdvoj bou\u0159ek je tzv. instabilita, tedy rychl\u00fd pokles teploty s\u00a0v\u00fd\u0161kou a\u00a0z\u00e1rove\u0148 p\u0159\u00edtomnost vy\u0161\u0161\u00ed vlhkosti.<\/p>\n

Instabilita je jedn\u00edm z\u00a0nejd\u016fle\u017eit\u011bj\u0161\u00edch atmosf\u00e9rick\u00fdch ukazatel\u016f pro mo\u017en\u00fd vznik bou\u0159ek. Hodnoty CAPE p\u0159es 1000\u00a0j\/kg ji\u017e zna\u010d\u00ed mo\u017enost siln\u00fdch bou\u0159\u00ed. Pokud nen\u00ed k\u00a0dispozici \u017e\u00e1dn\u00fd spou\u0161t\u011bc\u00ed impuls (nap\u0159\u00edklad front\u00e1ln\u00ed rozhran\u00ed nebo linie konvergence), ke vzniku bou\u0159ek nemus\u00ed v\u016fbec doj\u00edt.<\/p>\n

St\u0159ih v\u011btru<\/p>\n

Pro vznik siln\u00fdch a\u00a0organizovan\u00fdch bou\u0159ek s\u00a0del\u0161\u00ed \u017eivotnost\u00ed je d\u016fle\u017eit\u00fd tzv. vertik\u00e1ln\u00ed st\u0159ih v\u011btru. Na modelech se ud\u00e1v\u00e1 v\u00a0metrech za sekundu a\u00a0zna\u010d\u00ed zm\u011bnu sm\u011bru a\u00a0rychlosti v\u011btru s\u00a0v\u00fd\u0161kou. Hodnoty nad 15\u00a0m\/s spolu s\u00a0vy\u0161\u0161\u00edm CAPE zna\u010d\u00ed mo\u017enost tvorby supercel – izolovan\u00fdch bou\u0159ek s\u00a0jedn\u00edm dominantn\u00edm rotuj\u00edc\u00edm proudem. Samotn\u00fd st\u0159ih v\u011btru bez energie je pro vznik bou\u0159ek irelevantn\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"Na na\u0161em \u00fazem\u00ed se budou bou\u0159ky objevovat u\u017e b\u011bhem dne, ale ty nejsiln\u011bj\u0161\u00ed doraz\u00ed na Moravu a\u00a0do Slezska…\n","protected":false},"author":2,"featured_media":185912,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[3],"tags":[3862,43,109,108,106,607,10795,255,10797,10796,11416],"class_list":["post-185911","post","type-post","status-publish","format-standard","has-post-thumbnail","category-evropa","tag-bourka","tag-ceska-republika","tag-europa","tag-europe","tag-evropa","tag-italie","tag-kroupy-pocasi","tag-pocasi","tag-supercela","tag-tornado","tag-vitr"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/117127675360367055","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/185911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=185911"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/185911\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/185912"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=185911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=185911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=185911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}