Marko Korosec

Marko Korošec is a veteran storm chaser and expert weather forecaster with over 25 years of experience specializing in the analysis of extreme atmospheric events. A former forecaster for Estofex, he draws on deep-layer shear dynamics and thermodynamic analysis. Marko is highly recognized for his technical proficiency in short- and mid-term forecasting of high-impact weather, including severe convective systems and complex winter weather. In addition to his SWE role, Marko worked for 17 years as a Road Weather and Maintenance Decision Support System Supervisor until 2022, applying his expertise to the critical field of transportation meteorology. He focused on the forensic analysis of road surface conditions and the impact of extreme winter weather, including blizzards, freezing rain, and ice storms, on infrastructure safety. His work was instrumental in developing strategies for proactive winter maintenance and real-time hazard mitigation. Marko’s unique dual-career path combines rigorous meteorological forecasting with world-class visual documentation. An acclaimed visual artist and winner of the 2014 National Geographic Traveler Photo Contest, he uses his "awe-inspiring" photography to illustrate the power and complexity of the atmosphere. By merging technical forensic details with high-resolution visual evidence, Marko serves as a vital bridge between high-level atmospheric science and public understanding, dedicated to capturing "the fury of nature" for a global audience. Photo gallery: MarkoKorosec.net

Atmospheric pressure peaked at 1050.5 mbar in Mumbles Head, Wales early this morning. Around 1050 mbar now over Benelux, the upper 1040s in central Europe and rising

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Numerous stations have recorded around 1050 mbar across southern England and Wales overnight, almost up to 1049 mbar in southeast Ireland. Atmospheric pressure continues rising … Read more

Jan 19th, evening UPDATE: surface pressure readings across UK Wales and Ireland are reporting 1048-1049 mbar and rising – *above 1050 mbar* expected tonight

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The strengthening upper-level ridge across west-central Europe is underway, the atmospheric pressure has already risen towards 1050 mbar across parts of United Kindom. The mid-1040s … Read more

Rex-block pattern results in warm-core cyclone / #medicane in SW Mediterranean and huge amounts of rain/snow across eastern Spain this week – flooding threat expected

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While a large part of Europe is expecting an extremely high-pressure system with pressure readings 1045-1050 mbar until Thursday, there is a very interesting but … Read more

UPDATE: A powerful upper ridge strengthening over the North Atlantic and western Europe – an extreme near 1050 mbar surface high-pressure system is expected

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The significant pattern flip is underway across Europe as an extensive upper-level ridging – Rex block is developing this weekend. Surface pressure readings across UK … Read more

UPDATE: A remarkable satellite presentation of explosive cyclogenesis over the Northwest Atlantic today

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As we discussed yesterday, yet another explosive development of the extra-tropical cyclone was expected today. An upper wave ejected from eastern Canada into the Northwest … Read more

An *EXTREMELY HIGH* surface pressure develops over Europe through Sunday and Monday – 1048-1050 mbar will be possible in some areas!

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Like we didn’t have ridging pattern for several weeks now, there is an exceptional event coming in the next days. A very strong upper-level ridging … Read more

UPDATE: Tropical Cyclone #Tino upgraded to a Category 2 – explosive storms are brushing the Vanua Levu island and eastern Fiji archipelago with severe winds and dangerous flooding threat

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Tropical Cyclone #Tino has strengthened into a Category 2 system today, packing maximum sustained winds of 65 knots and central pressure around 970 mbar. Its … Read more