{"id":164009,"date":"2026-04-02T02:31:14","date_gmt":"2026-04-02T02:31:14","guid":{"rendered":"https:\/\/wexa.jamstec.go.jp\/home\/cold-spell-occuring-from-april-04-2021-to-april-21-2021-at-64-5n-340-0e\/"},"modified":"2026-04-02T02:31:14","modified_gmt":"2026-04-02T02:31:14","slug":"cold-spell-occuring-from-april-04-2021-to-april-21-2021-at-64-5n-340-0e","status":"publish","type":"post","link":"https:\/\/wexa.jamstec.go.jp\/home\/cold-spell-occuring-from-april-04-2021-to-april-21-2021-at-64-5n-340-0e\/","title":{"rendered":"Cold spell occuring from April 04 2021 to April 21 2021 at 64.5\u00b0N 340.0\u00b0E"},"content":{"rendered":"<p>Download data: <a href=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/2021-Apr-04_to_2021-Apr-21_340.0_64.5.json\">JSON<\/a><\/p>\n<p>Event type: Cold spell<\/p>\n<p>Countries affected (identified with ArcGIS Online; provided only for geographical reference):<\/p>\n<ul>\n<li>Albania<\/li>\n<li>Algeria<\/li>\n<li>Austria<\/li>\n<li>Belgium<\/li>\n<li>Bosnia and Herzegovina<\/li>\n<li>Bulgaria<\/li>\n<li>Croatia<\/li>\n<li>Cyprus<\/li>\n<li>Czechia<\/li>\n<li>Egypt<\/li>\n<li>France<\/li>\n<li>Germany<\/li>\n<li>Greece<\/li>\n<li>Hungary<\/li>\n<li>Iceland<\/li>\n<li>Iraq<\/li>\n<li>Ireland<\/li>\n<li>Israel<\/li>\n<li>Italy<\/li>\n<li>Jordan<\/li>\n<li>Lebanon<\/li>\n<li>Libya<\/li>\n<li>Luxembourg<\/li>\n<li>Montenegro<\/li>\n<li>Netherlands<\/li>\n<li>North Macedonia<\/li>\n<li>Poland<\/li>\n<li>Romania<\/li>\n<li>Saudi Arabia<\/li>\n<li>Serbia<\/li>\n<li>Slovakia<\/li>\n<li>Slovenia<\/li>\n<li>Sudan<\/li>\n<li>Switzerland<\/li>\n<li>Syrian Arab Republic<\/li>\n<li>Tunisia<\/li>\n<li>T\u00fcrkiye<\/li>\n<li>Ukraine<\/li>\n<li>United Kingdom<\/li>\n<\/ul>\n<p>Duration: 18 days<\/p>\n<p>Time span: April 04 2021 to April 21 2021<\/p>\n<p>Statistics over entire affected area: <\/p>\n<ul>\n<li>Mean temperature anomaly: -4.9 \u00b0C<\/li>\n<li>Mean temperature: 6.6 \u00b0C<\/li>\n<li>Minimum temperature anomaly: -11.6 \u00b0C<\/li>\n<li>Minimum temperature: -14.4 \u00b0C<\/li>\n<\/ul>\n<p>Event center: 40.5\u00b0N 16.5\u00b0E<\/p>\n<p>Area affected: 7702208 km$^2$<\/p>\n<p><p><a href=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/extreme_weather_anomaly_map_2021-Apr-04_to_2021-Apr-21_340.0_64.5.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-large wp-image-117\" src=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/extreme_weather_anomaly_map_2021-Apr-04_to_2021-Apr-21_340.0_64.5.jpg\" alt=\"\" width=\"550\" height=\"1024\" \/><\/a><br clear=\"all\" \/>Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.<\/p>\n<p><a href=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/extreme_weather_time_evo_2021-Apr-04_to_2021-Apr-21_340.0_64.5.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-large wp-image-117\" src=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/extreme_weather_time_evo_2021-Apr-04_to_2021-Apr-21_340.0_64.5.jpg\" alt=\"\" width=\"550\" height=\"1024\" \/><\/a><br \/><br clear=\"all\" \/>Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.<\/p>\n<p><a href=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/evo_map_2021-Apr-04_to_2021-Apr-21_340.0_64.5.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-large wp-image-117\" src=\"https:\/\/wexa.jamstec.go.jp\/home\/wp-content\/uploads\/evo_map_2021-Apr-04_to_2021-Apr-21_340.0_64.5.jpg\" alt=\"\" width=\"550\" height=\"1024\" \/><\/a><br \/><br clear=\"all\" \/>Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.<\/p>\n<p>Event ID: Cold_spell_2021-Apr-04_to_2021-Apr-21_340.0_64.5<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Download data: JSON Event type: Cold spell Countries affected (identified with ArcGIS Online; provided only for geographical reference): Albania Algeria Austria Belgium Bosnia and Herzegovina Bulgaria Croatia Cyprus Czechia Egypt France Germany Greece Hungary Iceland Iraq Ireland Israel Italy Jordan Lebanon Libya Luxembourg Montenegro Netherlands North Macedonia Poland Romania Saudi Arabia Serbia Slovakia Slovenia Sudan &hellip; <a href=\"https:\/\/wexa.jamstec.go.jp\/home\/cold-spell-occuring-from-april-04-2021-to-april-21-2021-at-64-5n-340-0e\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Cold spell occuring from April 04 2021 to April 21 2021 at 64.5\u00b0N 340.0\u00b0E&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2295,2092,2296,2366,2297,2298,2299,2208,2300,2139,2301,2302,2210,2303,2326,2211,2409,2290,2304,2213,2216,1945,2424,2305,2372,2306,2318,2307,2141,2308,2319,2309,1941,2311,2218,2312,2219,2320,2373,2047,1924,2051,2053,2055,2057,1964,2207,2059,2138,1950,2063,2065,2067,2189,1988,2337,2289,1966,2212,2215,1944,2070,2074,2076,2078,2080,2022,2115,2082,2084,1968,1940,2086,2217,2088,1992,2025,2090,744],"tags":[],"class_list":["post-164009","post","type-post","status-publish","format-standard","hentry","category-cold-spells-affecting-albania","category-cold-spells-affecting-algeria","category-cold-spells-affecting-austria","category-cold-spells-affecting-belgium","category-cold-spells-affecting-bosnia-and-herzegovina","category-cold-spells-affecting-bulgaria","category-cold-spells-affecting-croatia","category-cold-spells-affecting-cyprus","category-cold-spells-affecting-czechia","category-cold-spells-affecting-egypt","category-cold-spells-affecting-france","category-cold-spells-affecting-germany","category-cold-spells-affecting-greece","category-cold-spells-affecting-hungary","category-cold-spells-affecting-iceland","category-cold-spells-affecting-iraq","category-cold-spells-affecting-ireland","category-cold-spells-affecting-israel","category-cold-spells-affecting-italy","category-cold-spells-affecting-jordan","category-cold-spells-affecting-lebanon","category-cold-spells-affecting-libya","category-cold-spells-affecting-luxembourg","category-cold-spells-affecting-montenegro","category-cold-spells-affecting-netherlands","category-cold-spells-affecting-north-macedonia","category-cold-spells-affecting-poland","category-cold-spells-affecting-romania","category-cold-spells-affecting-saudi-arabia","category-cold-spells-affecting-serbia","category-cold-spells-affecting-slovakia","category-cold-spells-affecting-slovenia","category-cold-spells-affecting-sudan","category-cold-spells-affecting-switzerland","category-cold-spells-affecting-syrian-arab-republic","category-cold-spells-affecting-tunisia","category-cold-spells-affecting-turkiye","category-cold-spells-affecting-ukraine","category-cold-spells-affecting-united-kingdom","category-extremes-affecting-albania","category-extremes-affecting-algeria","category-extremes-affecting-austria","category-extremes-affecting-belgium","category-extremes-affecting-bosnia-and-herzegovina","category-extremes-affecting-bulgaria","category-extremes-affecting-croatia","category-extremes-affecting-cyprus","category-extremes-affecting-czechia","category-extremes-affecting-egypt","category-extremes-affecting-france","category-extremes-affecting-germany","category-extremes-affecting-greece","category-extremes-affecting-hungary","category-extremes-affecting-iceland","category-extremes-affecting-iraq","category-extremes-affecting-ireland","category-extremes-affecting-israel","category-extremes-affecting-italy","category-extremes-affecting-jordan","category-extremes-affecting-lebanon","category-extremes-affecting-libya","category-extremes-affecting-luxembourg","category-extremes-affecting-montenegro","category-extremes-affecting-netherlands","category-extremes-affecting-north-macedonia","category-extremes-affecting-poland","category-extremes-affecting-romania","category-extremes-affecting-saudi-arabia","category-extremes-affecting-serbia","category-extremes-affecting-slovakia","category-extremes-affecting-slovenia","category-extremes-affecting-sudan","category-extremes-affecting-switzerland","category-extremes-affecting-syrian-arab-republic","category-extremes-affecting-tunisia","category-extremes-affecting-turkiye","category-extremes-affecting-ukraine","category-extremes-affecting-united-kingdom","category-weather-extremes-all-events"],"_links":{"self":[{"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/posts\/164009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/comments?post=164009"}],"version-history":[{"count":0,"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/posts\/164009\/revisions"}],"wp:attachment":[{"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/media?parent=164009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/categories?post=164009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wexa.jamstec.go.jp\/home\/wp-json\/wp\/v2\/tags?post=164009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]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