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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

#COVID-19 *update*: Significant decline in global air traffic continues – the number of flights at the end of March is more than 60% lower than normal

As we discussed a week ago, there is an obvious substantial decline in global air traffic, followed by the restrictions and national lockdowns during the …

Read More about #COVID-19 *update*: Significant decline in global air traffic continues – the number of flights at the end of March is more than 60% lower than normal

A much colder air mass is now spreading across Europe – cold outbreak will intensify across east-central Europe through Monday and Tuesday

A strong cold advection is spreading across Europe this evening, associated with the cold outbreak. The event is intensifying tonight into early this coming week. …

Read More about A much colder air mass is now spreading across Europe – cold outbreak will intensify across east-central Europe through Monday and Tuesday

Several tornadoes hit Midwest (USA) on Saturday evening – destructive tornado rips through the city of Jonesboro (Arkansas) and leaves at least 6 injured

As we were expecting, favorable conditions for severe weather outbreak verified across the Midwest yesterday afternoon an evening hours, Saturday March 28th. Several tornadoes have …

Read More about Several tornadoes hit Midwest (USA) on Saturday evening – destructive tornado rips through the city of Jonesboro (Arkansas) and leaves at least 6 injured

A severe weather outbreak with very large hail and strong tornadoes possible across Midwest (United States) tonight, March 28th

A significant severe weather outbreak seems possible across far eastern Iowa, northeast Missouri into north-central Illinois and northwest Indiana, United States through late this afternoon/evening …

Read More about A severe weather outbreak with very large hail and strong tornadoes possible across Midwest (United States) tonight, March 28th

A very strong upper ridge develops a monster high-pressure system over the North Atlantic – near 1055 mbar in its center on Sunday

Contrary to the much above normal activity of North Atlantic troughs and extremely deep surface cyclones over the past few months, the NAO index flips …

Read More about A very strong upper ridge develops a monster high-pressure system over the North Atlantic – near 1055 mbar in its center on Sunday

*update* Unusually intense Arctic outbreak will spread across much of Europe through the end of March – additional frost damage is likely

It has been very cold weather across central Europe and the Mediterranean this week, with lots of snow over the Balkans. A new cold outbreak …

Read More about *update* Unusually intense Arctic outbreak will spread across much of Europe through the end of March – additional frost damage is likely

Rex block pattern with deep upper low over the Mediterranean brings lots of rain and flooding into southern Italy tonight

A potentially dangerous setup is unfolding across the southern Mediterranean today and tonight. In response to a deepening upper low, a pronounced surface low and …

Read More about Rex block pattern with deep upper low over the Mediterranean brings lots of rain and flooding into southern Italy tonight