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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

An extreme pattern flip across the northern United States – from frigid Arctic outbreak into spring weather in only 3 days

Yes, you’ve read it right! While there is one of the most significant Arctic cold outbreaks ongoing across the north and northeast United States right …

Read More about An extreme pattern flip across the northern United States – from frigid Arctic outbreak into spring weather in only 3 days

Another deep cyclone will bring severe winds into the Bay of Biscay and huge waves along the coasts of NW Iberia tomorrow, Friday Feb 1st

Yet another deep trough and cyclone are on the way towards SW Europe today and tomorrow. A large cyclone with central pressure around 970 mbar …

Read More about Another deep cyclone will bring severe winds into the Bay of Biscay and huge waves along the coasts of NW Iberia tomorrow, Friday Feb 1st

Brutal Arctic outbreak will push into the Great Lakes (United States) region through mid this week, windchills towards -65F / -50 °C, Jan 29 – 31st

A classic, but unusually extremely intense cold outbreak is developing over the southern Canada today where 70-80F below zero windchills have been observed! The outbreak …

Read More about Brutal Arctic outbreak will push into the Great Lakes (United States) region through mid this week, windchills towards -65F / -50 °C, Jan 29 – 31st

Weekly pattern overview – progressive pattern with deep troughs and cyclones across W/SW Europe, warmer across E Europe, Jan 28th – Feb 3rd

The effects of Polar Vortex split earlier this month are still well visible as a very dynamic pattern is ongoing on all continents in the …

Read More about Weekly pattern overview – progressive pattern with deep troughs and cyclones across W/SW Europe, warmer across E Europe, Jan 28th – Feb 3rd