{"id":10189,"date":"2023-02-24T14:58:17","date_gmt":"2023-02-24T13:58:17","guid":{"rendered":"https:\/\/blog.laviny.sk\/?p=10189"},"modified":"2023-02-24T15:03:02","modified_gmt":"2023-02-24T14:03:02","slug":"10189","status":"publish","type":"post","link":"https:\/\/blog.laviny.sk\/?p=10189","title":{"rendered":"Teplo – zima, d\u00e1\u017e\u010f – sneh, firn – k\u00f4ra – pra\u0161an, st\u00e1le dokola …"},"content":{"rendered":"\n

Po\u010dasie, sneh a lav\u00edny 18.2.2023 – 24.2.2023<\/p>\n\n\n\n

Uplynul\u00fd t\u00fd\u017ede\u0148 sa v na\u0161ich pohoriach niesol v znamen\u00ed da\u017e\u010fa a nadpriemerne vysok\u00fdch tepl\u00f4t vzduchu. Na AMS \u017diarska chata spadlo po\u010das v\u00edkendu viac ako 60 mm zr\u00e1\u017eok a to v\u0161etko preva\u017ene vo forme da\u017e\u010fa. Ke\u010f k tomu prid\u00e1me fakt, \u017ee teplota vzduchu v dan\u00fdch d\u0148och sa pohybovala okolo 3\u00b0C, tak tento v\u00fdvoj mal v\u00fdrazn\u00fd dopad na snehov\u00fa pokr\u00fdvku. Jednak ubudlo pribli\u017ene 15 cm snehu a jednak sa cel\u00fd snehov\u00fd profil premo\u010dil a pretvoril na firn. Z tohto d\u00f4vodu bol v nede\u013eu vyhl\u00e1sen\u00fd 3. stupe\u0148 lav\u00ednov\u00e9ho nebezpe\u010denstva vo Ve\u013ekej a Malej Fatre a to pod hornou hranicou lesa, teda ni\u017e\u0161ie ako 1400 m n. m. V dan\u00fd de\u0148 sme zaznamenali aj nieko\u013eko mal\u00fdch aj v\u00e4\u010d\u0161\u00edch mokr\u00fdch a z\u00e1kladov\u00fdch lav\u00edn vo Fatr\u00e1ch, ale aj praskliny a n\u00e1tr\u017ee v Tatr\u00e1ch. <\/p>\n\n\n\n

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Vplyv zr\u00e1\u017eok a teploty vzduchu na v\u00fd\u0161ku snehu – AMS \u017diarska chata<\/figcaption><\/figure>\n\n\n\n

Po v\u00fdrazne teplom v\u00edkende k n\u00e1m na za\u010diatku pracovn\u00e9ho t\u00fd\u017ed\u0148a za\u010dal od severoz\u00e1padu pr\u00fadi\u0165 such\u00fd studen\u00fd vzduch. Hranica sne\u017eenia za\u010dala postupne klesa\u0165 a teploty prudko klesli pod -10\u00b0C. Na snehov\u00fa pokr\u00fdvku to malo presne opa\u010dn\u00fd efekt. V ni\u017e\u0161\u00edch poloh\u00e1ch povrch stvrdol alebo z\u013eadovatel a na to pripadlo do 15 cm nov\u00e9ho snehu. Sne\u017eenie bolo ale spojen\u00e9 s ve\u013emi siln\u00fdm vetrom. To vytvorilo zv\u00fd\u0161en\u00e9 lav\u00ednov\u00e9 nebezpe\u010denstvo vo vysok\u00fdch poloh\u00e1ch Tatier, kde sa na r\u00f4znych orient\u00e1ci\u00e1ch vytvorili snehov\u00e9 dosky a vank\u00fa\u0161e, ktor\u00e9 s tvrd\u00fdm podkladom neboli dostato\u010dne dobre previazan\u00e9.<\/p>\n\n\n\n

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Sila a n\u00e1razy vetra na AMS Zbojn\u00edcka chata<\/figcaption><\/figure>\n\n\n\n

Ako na hojda\u010dke, po ochladen\u00ed prich\u00e1dza op\u00e4\u0165 v\u00fdrazn\u00e9 oteplenie a teplota vzduchu v 1500 m n. m. st\u00fapa ku kladn\u00fdm hodnot\u00e1m. V pohoriach sa tak vytv\u00e1ra typick\u00e1 jarn\u00e1 situ\u00e1cia, kedy v nociach mrzne a cez de\u0148 sa povrch snehu vplyvom oteplenia men\u00ed na odm\u00e4knut\u00fd firn. Tieto v\u00fdkyvy v\u00fdrazne stabilizuj\u00fa snehov\u00fa pokr\u00fdvku a tak je na v\u00e4\u010d\u0161ine \u00fazemia vyhl\u00e1sen\u00e9 len mal\u00e9 lav\u00ednov\u00e9 nebezpe\u010denstvo, teda 1. stupe\u0148. S pr\u00edlevom tepl\u00e9ho vzduchu sa v hor\u00e1ch \u010dasto vytv\u00e1ra aj typick\u00e1 situ\u00e1cia s ve\u013emi siln\u00fdm vetrom. Ten v n\u00e1razoch na Zbojn\u00edckej chate dosahoval silu a\u017e 43 m\/s (150 km\/h), \u010do je sila mohutnej v\u00edchrice a\u017e ork\u00e1nu. Niet divu, \u017ee v\u0161etok vo\u013en\u00fd sneh bol previaty na z\u00e1vetern\u00e9 svahy a do p\u00e1sma lesa a kosodreviny.<\/p>\n\n\n\n

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Oteplenie pom\u00e1ha aj samotn\u00e9mu Stredisku lav\u00ednovej prevencie. Podarilo sa po dlh\u0161ej dobe op\u00e4\u0165 sfunk\u010dni\u0165 niektor\u00e9 meteorologick\u00e9 stanice, v\u010faka \u010domu m\u00e1me lep\u0161\u00ed preh\u013ead o tvorbe najm\u00e4 mokr\u00fdch lav\u00edn v Malej Fatre. Samozrejme, \u017ee v\u0161etci by sme boli v\u010fa\u010dnej\u0161\u00ed za poriadnu zimu. S nadch\u00e1dzaj\u00facim v\u00edkendom je v\u0161ak predpove\u010f po\u010dasia op\u00e4\u0165 neist\u00e1. Po tlakovej v\u00fd\u0161i sa k n\u00e1m op\u00e4\u0165 od severoz\u00e1padu tla\u010d\u00ed chladn\u00fd morsk\u00fd vzduch. Zr\u00e1\u017eky do 1500 m n. m. bud\u00fa vo forme da\u017e\u010fa a postupne sa po\u010das sobot\u0148aj\u0161ieho r\u00e1na za\u010dne v\u00fdrazne ochladzova\u0165 a aj hranica sne\u017eenia bude postupne klesa\u0165. Predpovednostn\u00e9 modely ud\u00e1vaj\u00fa od 15 do 25 mm zr\u00e1\u017eok, \u010do vo vysok\u00fdch poloh\u00e1ch Tatier pravdepodobne vytvor\u00ed zv\u00fd\u0161en\u00e9 lav\u00ednov\u00e9 nebezpe\u010denstvo. Vyzer\u00e1 to tak, \u017ee za\u010diatkom nov\u00e9ho pracovn\u00e9ho t\u00fd\u017ed\u0148a sa k n\u00e1m op\u00e4\u0165 vr\u00e1ti zima a teploty poklesn\u00fa k -10\u00b0C. Pr\u00edlev vysok\u00e9ho tlaku vzduchu predpoved\u00e1, \u017ee n\u00e1s \u010dak\u00e1 pekn\u00fd slne\u010dn\u00fd a chladn\u00fd t\u00fd\u017ede\u0148.<\/p>\n\n\n\n

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Po\u010dasie, sneh a lav\u00edny 18.2.2023 – 24.2.2023 Uplynul\u00fd t\u00fd\u017ede\u0148 sa v na\u0161ich pohoriach niesol v znamen\u00ed da\u017e\u010fa a nadpriemerne vysok\u00fdch tepl\u00f4t vzduchu. Na AMS \u017diarska chata spadlo po\u010das v\u00edkendu viac ako 60 mm zr\u00e1\u017eok a to v\u0161etko preva\u017ene vo forme da\u017e\u010fa. Ke\u010f k tomu prid\u00e1me fakt, \u017ee teplota vzduchu v dan\u00fdch d\u0148och sa pohybovala okolo…<\/p>\n","protected":false},"author":1,"featured_media":10192,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4],"tags":[79,123,154,155,156],"class_list":["post-10189","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pocasie-sneh-a-laviny","tag-laviny","tag-pocasie","tag-sneh","tag-sneh-a-laviny","tag-snehova-pokryvka"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/s8DxWh-10189","jetpack-related-posts":[],"jetpack_featured_media_url":"https:\/\/blog.laviny.sk\/wp-content\/uploads\/2023\/02\/Nanos-starej-laviny-v-Sutovskej-doline-2023-02-23.jpg","_links":{"self":[{"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/posts\/10189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10189"}],"version-history":[{"count":5,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/posts\/10189\/revisions"}],"predecessor-version":[{"id":10215,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/posts\/10189\/revisions\/10215"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=\/wp\/v2\/media\/10192"}],"wp:attachment":[{"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.laviny.sk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}