{"id":153864,"date":"2026-07-21T09:30:10","date_gmt":"2026-07-21T09:30:10","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/153864\/"},"modified":"2026-07-21T09:30:10","modified_gmt":"2026-07-21T09:30:10","slug":"nejvyssi-stupen-vystrahy-jadran-zasahnou-extremni-bourky","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/153864\/","title":{"rendered":"Nejvy\u0161\u0161\u00ed stupe\u0148 v\u00fdstrahy. Jadran zas\u00e1hnou extr\u00e9mn\u00ed bou\u0159ky"},"content":{"rendered":"

Po n\u011bkolika dnech \u00famorn\u00fdch veder \u010dek\u00e1 oblast Jadranu v\u00fdrazn\u00e1 zm\u011bna po\u010das\u00ed. P\u0159inese ji studen\u00e1 fronta, kter\u00e1 b\u011bhem \u00fater\u00fd postoup\u00ed p\u0159es severn\u00ed It\u00e1lii sm\u011brem na Balk\u00e1n.<\/p>\n

Na \u010dele fronty se vytvo\u0159\u00ed mimo\u0159\u00e1dn\u011b p\u0159\u00edzniv\u00e9 podm\u00ednky pro vznik extr\u00e9mn\u011b siln\u00fdch bou\u0159ek. Kombinace velk\u00e9ho mno\u017estv\u00ed potenci\u00e1ln\u011b dostupn\u00e9 energie v\u00a0atmosf\u00e9\u0159e a\u00a0siln\u00e9ho st\u0159ihu v\u011btru bude podporovat vznik organizovan\u00fdch bou\u0159kov\u00fdch syst\u00e9m\u016f a\u00a0supercel.<\/p>\n

Prvn\u00ed bou\u0159ky se na studen\u00e9 front\u011b objevily u\u017e b\u011bhem rann\u00edch hodin. Vznikly nad Jadranem a\u00a0zas\u00e1hly severn\u00ed Chorvatsko v\u010detn\u011b Istrie. \u0160lo v\u0161ak pouze o\u00a0p\u0159edzv\u011bst mnohem intenzivn\u011bj\u0161\u00edho v\u00fdvoje o\u010dek\u00e1van\u00e9ho b\u011bhem odpoledne a\u00a0ve\u010dera.<\/p>\n

<\/a>Deseticentimetrov\u00e9 kroupy<\/p>\n

P\u0159edpov\u011bdn\u00ed modely nazna\u010duj\u00ed vznik prvn\u00edch velmi siln\u00fdch bou\u0159ek odpoledne nad Apeninami a\u00a0Alpami, odkud postoup\u00ed do P\u00e1dsk\u00e9 n\u00ed\u017einy. O\u010dek\u00e1v\u00e1 se vznik supercel, kter\u00e9 mohou p\u0159in\u00e9st mimo\u0159\u00e1dn\u011b siln\u00e1 krupobit\u00ed, ve kter\u00fdch mohou kroupy ojedin\u011ble p\u0159es\u00e1hnout pr\u016fm\u011br 10\u00a0centimetr\u016f.<\/p>\n

Ve\u010der by se jednotliv\u00e9 bu\u0148ky m\u011bly spojovat do rozs\u00e1hl\u00fdch bou\u0159kov\u00fdch syst\u00e9m\u016f, kter\u00e9 zam\u00ed\u0159\u00ed p\u0159es Jadersk\u00e9 mo\u0159e k\u00a0pob\u0159e\u017e\u00ed Chorvatska, \u010cern\u00e9 Hory a\u00a0Alb\u00e1nie. Nebezpe\u010dn\u00e9 po\u010das\u00ed zde m\u016f\u017ee p\u0159etrv\u00e1vat a\u017e do noci na st\u0159edu.<\/p>\n

\u201eTato situace pravd\u011bpodobn\u011b vy\u00fast\u00ed v\u00a0rozs\u00e1hlou vlnu extr\u00e9mn\u00edho po\u010das\u00ed, kter\u00e1 se bude \u0161\u00ed\u0159it z\u00a0It\u00e1lie sm\u011brem k\u00a0jihov\u00fdchodn\u00ed Evrop\u011b. P\u0159edpov\u00eddaj\u00ed se rychle se pohybuj\u00edc\u00ed a\u00a0dlouhodob\u011b p\u0159etrv\u00e1vaj\u00edc\u00ed syst\u00e9my s\u00a0mo\u017enost\u00ed tvorby bow echa,\u201c uv\u00e1d\u00ed ve sv\u00e9 p\u0159edpov\u011bdi evropsk\u00e1 organizace ESTOFEX<\/a>.<\/p>\n

Foto: ESTOFEX<\/p>\n

P\u0159edpov\u011b\u010f bou\u0159ek na \u00fater\u00fd 21.\u00a0\u010dervence podle evropsk\u00e9 organizace ESTOFEX<\/p>\n

Bow echo<\/a> je rozs\u00e1hl\u00fd liniov\u00fd bou\u0159kov\u00fd syst\u00e9m, kter\u00fd na meteorologick\u00fdch radarech tvarem p\u0159ipom\u00edn\u00e1 napnut\u00fd luk. Vznik\u00e1 p\u0159i zes\u00edlen\u00ed sestupn\u00fdch proud\u016f uvnit\u0159 bou\u0159kov\u00e9 linie a\u00a0b\u00fdv\u00e1 prov\u00e1zen mimo\u0159\u00e1dn\u011b siln\u00fdmi n\u00e1razy v\u011btru. Ty mohou m\u00edsty dosahovat s\u00edly hurik\u00e1nu a\u00a0zp\u016fsobovat rozs\u00e1hl\u00e9 \u0161kody.<\/p>\n

ESTOFEX vydal pro oblast P\u00e1dsk\u00e9 n\u00ed\u017einy, ji\u017en\u00edho Chorvatska a\u00a0Bosny a\u00a0Hercegoviny, \u010cern\u00e9 Hory, Kosova a\u00a0severn\u00ed Alb\u00e1nie pom\u011brn\u011b vz\u00e1cn\u00fd t\u0159et\u00ed nejvy\u0161\u0161\u00ed stupe\u0148 varov\u00e1n\u00ed. Upozor\u0148uje na mo\u017enost ob\u0159\u00edch krup, ni\u010div\u00fdch n\u00e1raz\u016f v\u011btru i\u00a0ojedin\u011bl\u00fdch torn\u00e1d. Podobn\u011b hodnot\u00ed situaci tak\u00e9 ital\u0161t\u00ed meteorologov\u00e9 z\u00a0projektu PRETEMP<\/a>.<\/p>\n

Po p\u0159echodu studen\u00e9 fronty se po\u010das\u00ed uklidn\u00ed, z\u00e1rove\u0148 se ale citeln\u011b ochlad\u00ed. Nejvy\u0161\u0161\u00ed denn\u00ed teploty se budou v\u011bt\u0161inou pohybovat mezi 25\u00a0a\u00a030\u00a0\u00b0C a\u00a0vy\u0161\u0161\u00ed hodnoty se objev\u00ed u\u017e jen v\u00fdjime\u010dn\u011b.<\/p>\n

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

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Po n\u011bkolika dnech \u00famorn\u00fdch veder \u010dek\u00e1 oblast Jadranu v\u00fdrazn\u00e1 zm\u011bna po\u010das\u00ed. P\u0159inese ji studen\u00e1 fronta, kter\u00e1 b\u011bhem \u00fater\u00fd…\n","protected":false},"author":2,"featured_media":153865,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[11],"tags":[3862,1222,15974,607,5826,10795,255,54,10796,11416,53,52],"class_list":["post-153864","post","type-post","status-publish","format-standard","has-post-thumbnail","category-svet","tag-bourka","tag-chorvatsko","tag-extremni-pocasi","tag-italie","tag-jadran","tag-kroupy-pocasi","tag-pocasi","tag-svet","tag-tornado","tag-vitr","tag-world","tag-world-news"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116957271310790881","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/153864","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=153864"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/153864\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/153865"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=153864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=153864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=153864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}