{"id":9233,"date":"2024-08-23T19:23:17","date_gmt":"2024-08-23T11:23:17","guid":{"rendered":"https:\/\/tommykwan.com\/blog\/?p=9233"},"modified":"2025-07-28T18:10:06","modified_gmt":"2025-07-28T10:10:06","slug":"thunderstorm-cb","status":"publish","type":"post","link":"https:\/\/tommykwan.com\/blog\/aviation\/thunderstorm-cb\/","title":{"rendered":"Thunderstorm, CB?"},"content":{"rendered":"<p><span style=\"text-decoration: underline\">(4) four main types of thunderstorm<\/span><\/p>\n<ol>\n<li>Single-cell\n<ul>\n<li>small, and isolated storm<\/li>\n<\/ul>\n<\/li>\n<li>Multi-cell\n<ul>\n<li>a cluster of single-cell<\/li>\n<\/ul>\n<\/li>\n<li>Squall line\n<ul>\n<li>a line of thunderstorm<\/li>\n<\/ul>\n<\/li>\n<li>Super cell\n<ul>\n<li>very strong thunderstorm, and capable of producting<a href=\"https:\/\/tommykwan.com\/blog\/aviation\/how-are-tornadoes-formed\/\"> tornadoes<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>https:\/\/youtu.be\/zUNEFefftt8?si=32eI_5NQVILuZ9xh<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline\">Criteria of forming thunderstorm (CB)<\/span><\/p>\n<ol>\n<li>unstable atmoshpere (warm air)<\/li>\n<li>moisture (larage amount)<\/li>\n<li>lifting mechanism (trigger action)<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline\">(5) five types of lifting mechanism<\/span><\/p>\n<ol>\n<li>Orographic (mountain \u5c71)<\/li>\n<li>Convergence (See breeze \u6d77)<\/li>\n<li>Convection (thermal lift \u65e5\u7167)<\/li>\n<li>frontal&nbsp; (cold front \u51b7\u92d2)<\/li>\n<li>turbulence (\u4e82\u6d41)<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline\">(3) three stages of thunderstorm (CB)<\/span><\/p>\n<ol>\n<li>Cumulas stage\n<ul>\n<li>developing TCU<\/li>\n<li>only UPdraft<\/li>\n<\/ul>\n<\/li>\n<li>Mature stage\n<ul>\n<li>both UPdraft and DOWNdraft<\/li>\n<li>present of precipitation<\/li>\n<li><strong>roll cloud<\/strong>&nbsp; at leading edge<\/li>\n<\/ul>\n<\/li>\n<li>Dissipating stage\n<ul>\n<li>only DOWNdraft<\/li>\n<li>present of <strong>anvil<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/images.squarespace-cdn.com\/content\/v1\/5bb6241501232caaa3c1fef1\/9afb7c6d-2bef-435b-b1b2-d81e4ec18f59\/Aviator+Zone+Academy_Diagram+Showing+Stages+of+a+Thunderstorm.png\" alt=\"Miami Aviation School - The Three Stages of a Thunderstorm: Characteristics and Hazards | Aviator Zone Academy, LLC\"><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline\">Feature of thunderstorm (CB)<\/span><\/p>\n<ol>\n<li>Lightening\n<ul>\n<li>thunder (what you hear) + lighting flash (what you see)<\/li>\n<\/ul>\n<\/li>\n<li>Turbulence\n<ul>\n<li><strong>roll cloud<\/strong> at leading edge of CB &#8211; representing mature stage ; gust front<\/li>\n<\/ul>\n<\/li>\n<li>Icing\n<ul>\n<li>clear \/ rime \/ mixed rime<\/li>\n<\/ul>\n<\/li>\n<li>Hail\n<ul>\n<li><strong>anvil<\/strong> at leading edige of CB &#8211; representing dissipitating stage ; but hailstone is expected beneath anvil<\/li>\n<\/ul>\n<\/li>\n<li>Low Ceiling and Visibility\n<ul>\n<li>precipitation<\/li>\n<\/ul>\n<\/li>\n<li>Effect on Altimeters<\/li>\n<\/ol>\n<p>https:\/\/youtu.be\/Hl5YH4bB-Vg?si=eHzjZm7pfi5zViYb<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"text-decoration: underline\">Detection of thunderstorm<\/span><\/p>\n<ol>\n<li>Airborne weather radar<\/li>\n<li>Ground based weather radar\n<ul>\n<li>Doppler radar&nbsp; &nbsp; &#8211;&nbsp; &nbsp; a.k.a&nbsp; &#8220;terminal doppler weather radar (TDWR)&#8221;<\/li>\n<li>LIDAR &#8211; Light Detection And Ranging<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>Also ref:<\/p>\n<p><a href=\"https:\/\/www.faa.gov\/documentlibrary\/media\/advisory_circular\/ac%2000-24c.pdf\">AC 00-24C &#8211; Thunderstorms (faa.gov)<\/a><\/p>\n<p><a href=\"https:\/\/www.hko.gov.hk\/en\/publica\/gen_pub\/files\/Thunderstorms_English.pdf\">https:\/\/www.hko.gov.hk\/en\/publica\/gen_pub\/files\/Thunderstorms_English.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(4) four main types of thunderstorm Single-cell small, and isolated storm Multi-cell a cluster of single-cell Squall line a line of thunderstorm Super cell very strong thunderstorm, and capable of producting tornadoes https:\/\/youtu.be\/zUNEFefftt8?si=32eI_5NQVILuZ9xh &nbsp; Criteria of forming thunderstorm (CB) unstable atmoshpere (warm air) moisture (larage amount) lifting mechanism (trigger action) &nbsp; (5) five types of<a class=\"read-more \" href=\"https:\/\/tommykwan.com\/blog\/aviation\/thunderstorm-cb\/\" title=\"Read More\"> <span class=\"button default\">Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,72],"tags":[],"class_list":["post-9233","post","type-post","status-publish","format-standard","hentry","category-aviation","category-meteorology"],"_links":{"self":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/comments?post=9233"}],"version-history":[{"count":25,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9233\/revisions"}],"predecessor-version":[{"id":9962,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/posts\/9233\/revisions\/9962"}],"wp:attachment":[{"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/media?parent=9233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/categories?post=9233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tommykwan.com\/blog\/wp-json\/wp\/v2\/tags?post=9233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}