Mika Rantanen, Otto Hyvärinen, Andrea Vajda, Alexey Karpechko
{"title":"The atmospheric ‘cold blob’ over Fennoscandia from October 2023 to January 2024","authors":"Mika Rantanen, Otto Hyvärinen, Andrea Vajda, Alexey Karpechko","doi":"10.1002/wea.4570","DOIUrl":"https://doi.org/10.1002/wea.4570","url":null,"abstract":"Between October 2023 and January 2024, a remarkably persistent cold air anomaly prevailed over Fennoscandia on an otherwise record‐warm planet. This article describes the temperature anomalies, atmospheric circulation and seasonal predictions associated with the cold blob. The 4‐month period from October to January was the third coldest in Fennoscandia during the ongoing century. The cold blob was associated with anomalous atmospheric circulation; for example, jet stream wind speeds were exceptionally high south of Fennoscandia. Furthermore, seasonal forecasts failed to capture the cold blob, which may be related to difficulties in simulating El Niño teleconnections by long‐range forecasting systems.","PeriodicalId":23637,"journal":{"name":"Weather","volume":"46 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"March 2024. Another very mild, dull and unsettled month","authors":"","doi":"10.1002/wea.4565","DOIUrl":"https://doi.org/10.1002/wea.4565","url":null,"abstract":"","PeriodicalId":23637,"journal":{"name":"Weather","volume":"26 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140829988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Observational study of Super Typhoon Saola in 2023 when it was close to Hong Kong","authors":"P. W. Chan, C. W. Choy, Y. Y. Chiu, Junyi He","doi":"10.1002/wea.4563","DOIUrl":"https://doi.org/10.1002/wea.4563","url":null,"abstract":"Super Typhoon <jats:italic>Saola</jats:italic> came very close to Hong Kong on 1/2 September 2023, necessitating the issuance of the No. 10 hurricane signal, the highest tropical cyclone warning signal in Hong Kong. While there was widespread damage in Hong Kong, no people were killed in the event with effective early warning. It is rare that a super typhoon comes very close to Hong Kong, and this paper is a part in the series of the documentation of <jats:italic>Saola</jats:italic> to summarize the interesting observations of <jats:italic>Saola</jats:italic> near Hong Kong for future reference by weather forecasters.","PeriodicalId":23637,"journal":{"name":"Weather","volume":"11 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140830011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}