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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

The ‘bomb cyclone’ over the Northwest Atlantic brought the most powerful snowstorm on record across Newfoundland, Jan 17th

A spectacular satellite presentation of an explosive cyclone over the Northwest Atlantic on Friday, Jan 17th, has brought a massive, record-breaking snowstorm into Newfoundland (Canada) …

Read More about The ‘bomb cyclone’ over the Northwest Atlantic brought the most powerful snowstorm on record across Newfoundland, Jan 17th

Another very warm day in Norway – Sunndalsøra hit +16.9 °C today. Very warm weather for Baltic region and southern Scandinavia tonight

In response to a strong warm advection ongoing along the northern flank of the west-central Europe ridge, dry foehn effect warming occurred over the west …

Read More about Another very warm day in Norway – Sunndalsøra hit +16.9 °C today. Very warm weather for Baltic region and southern Scandinavia tonight

The day after tomorrow? Not really, but we have twins – two spectacular deep cyclones over the North Pacific today

The overall global pattern across the Northern Hemisphere continues as very dynamic also trough January and numerous cyclone, even intense ones, are forming over both …

Read More about The day after tomorrow? Not really, but we have twins – two spectacular deep cyclones over the North Pacific today

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

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 about 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

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

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

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

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 about 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

An extreme 40+ degrees temperature difference over Scandinavia – around +5 °c in south Finland vs below -35 °C in Lapland

This morning, a huge temperature difference occurred over Finland. The extreme north Lapland station Utsjoki Nuorgam reported -36 °C while the capital Helsinki in far …

Read More about An extreme 40+ degrees temperature difference over Scandinavia – around +5 °c in south Finland vs below -35 °C in Lapland