About Marko Korošec

My name is Marko Korošec, I was born and raised in a small village Žirje in SW Slovenia. I graduated high school here and continued with my studies at the University of Ljubljana, Faculty of Mathematics and Physics. Since my early age, I am interested in meteorology and photography. During my primary school classes I’ve already had some basic meteorological instruments for weather observation and so it all began to rise. Later on I purchased an automatic weather station to get more weather data and observations of my local region – named Karst. Through several years of mesurements and daily observations I managed to collect many interesting data about southwestern Slovenia and Karst region climatology.

My interests have been rising since then and I found the most exciting moments in extreme weather such as damaging winter storms, severe storms during summer, excessive rainfall events during spring, etc. I am studying severe weather events, researching them through forecasting, analysing and chasing all kind of such severe weather events. My main research areas of interest are mostly concentrated on research of mesoscale and convective dynamics, especially on severe storms with the forecasting initiation with triggering mechanism for deep moist convection on pre-existing airmass boundaries (e.g. drylines or other near-surface convergence boundaries) and the effect of rear-flank downdraft’s forcing on tornadogenesis in the supercell thunderstorms. With chasing such extreme events I am very much enjoying taking nature and weather photographs everytime I am out there observing weather phenomena and its majestys. My aim and challenge is to get the most photogenic moments out from the rough power of Mother Nature which is, despite known as dangerous weather, a beautiful show of weather dynamics. Nothing on this world impresses me more than a nicely structured supercell storms and as such, storm chasing has became a large part of my life and I enjoy to learn something new everytime I am out there on the fields. Mother Nature is simply outstanding source of great moments! As in many other hobbies or works, thousands of hours dedicated to chasing and collecting experiences is the key for success which goes hand in hand with deep understanding of the meteorological background of storm systems, high-end experiences in weather forecasting and storm structure dynamics analysis, driving in dangerous weather conditions, etc.

I am very much enjoying taking photos when I am outside, could it be intentional photo trips or just normal trips. One will rarely see me without a camera in my hand, if not profesional equipment, it could be my phone. My photography fields mostly cover the weather photography while I am also enjoying photographing landscapes, sea scapes and night astro photography. I purchased my first photo camera back in year 1998. I started directly with single-lens reflex (SLR) camera, it was a Canon EOS 500N, a 35mm slide film camera. Since then I am shooting images with Canon cameras. I jumped into the digital world of cameras back in 2002 when I got digital camera Canon PowerShot A60, while I got more seriously envolved into DSLR cameras in spring 2005 when I purchased a Canon EOS 300D DSLR. It has to be said that I learned quite a lot on classic 35mm slide film camera. But with the digital nature of SLR cameras, it was like a changing world. Shooting hundreds of photos without being worried if I took too much of them, as shots are literally ‘free’. In the following years I switched into completely professional equipment to get the optimal results from my photo expeditions and chasing. I am often recording movies of extreme weather events and recording them on the video camera tapes was time wasting, so I use DSLR camera also for timelapse video recording. So I made my gear as optimal as possible for later production of photo or video material. I am always shooting in RAW format, it gives you the open space in post-processing of photographs. With DSLR movies much more space for fast post-processing and publishing is available, while on the other hand I often use both camera for shooting events. It becomes easier when one needs to shoot from wide angle to zoom shots, there the two Canon bodies are a big step forward. I am self-taught photographer since my first click on the camera’s trigger with a strong passion for creating photographs with all the dramatic moments and feelings experienced while chasing, no manipulation is made on my photos or videos. Sharing the photographs of my passion with the world was the reason to create an online website which you’re browsing right now. It shares my wide photo gallery, a blog with chasing logs, occasional weather analysis, cloud atlas and much more. For the reason of promotion and as a response to a wide public interest of my work, I am also selling prints, calendars, photo books or digital images for licensing.

What gear is currently in my bag?

  • Canon EOS 6D
  • Canon EOS 6D Baader modified
  • Canon EOS 1100D IR modified full spectrum
  • Samyang 12 mm f/2.0 NCS CS
  • Samyang 14mm f/2.8 IF ED UMC Aspherical
  • Canon EF 17-40mm L f/4 USM
  • Samyang 24mm f/1.4 ED AS UMC
  • Canon EF 24-105mm L f/4 IS USM
  • Nikkor 50mm f/1.4
  • Samyang AE 85mm f/1.4 IF UMC Nikon
  • Canon EF 100-400mm L f/4.5-5.6 IS USM
  • Canon EF 2x III Extender
  • Circular polarizer filters, various ND filters, remote triggers
  • Manfrotto tripods and ball heads

Since 2005, I am employed as a System Administrator and Supervisor of Road Weather Information System (RWIS) at Slovenian main motorway company DARS. The system is used for monitoring weather conditions along the motorways through whole Slovenian road network with the main focus on optimization of winter maintenance (called MDSS – Maintenance Decision Support System) which is the most important to prevent road blocks and traffic jams with the daily moving international transport in the winter period. The Slovenian motorway company’s RWIS system holds more than 60 professional road weather stations from different world’s professional meteorological equipment providers such as VAISALA and BOSCHUNG. Both of these two companies are the world’s top RWIS system equipment companies.

From mid 2007 until late 2012 I was a member of the European project ESTOFEX – The European Storm Forecast Experiment whose goals are daily forecasts of severe convective weather in Europe, enhancement in understanding severe storms and to promote compilation of extreme weather events into the European Severe Weather Database (ESWD). I was an official forecaster for ESTOFEX for 4 years. Since late 2013, I have been involved in a new project called Severe Weather Europe (website: www.severe-weather.eu) whose goals are to monitor, analyze and forecast extreme and severe weather events across Europe.

In the last years I have attended on several European conferences with scientific papers and talks regarding severe weather with photography and road weather information systems. My photographs have been published in numerous magazines, books and other papers. In mid 2014, I have been awarded as the winner of National Geographic Traveler Photo 2014 contest with a supercell photo taken in Julesburg, Colorado I named “The independence day”. More details about my publications, talks and other contributions can be found in the reference pages.

With my strong passion of observing severe storms, I have been chasing since year 2000. First mostly in the Slovenian territory which I extended outside the borders in the last years, especially over the northern Italy, coastal Croatia and Pannonia plains which are often under favorable conditions for severe storms. I have also been chasing severe storms in the Tornado Alley (US) since 2006, where I usually spend whole May or June on the Plains each year to observe some of the Earth’s most powerful storms with spectacular structures, hail and tornadoes across the Tornado Alley. A website www.inflowjet.net has been created for this purpose which is dedicated to United States severe weather, throughout weather forecasting, case studies, research and storm chasing. In my 15 years long chasing career I have experienced hundreds of spectacular storms with all accompanied phenomena like very large hail (tennis ball size) and tornadoes (at least 100 of them), extreme winds (180-220 km/h Bora winds), extreme snowfalls with blizzard conditions, etc. Every moment and chasing day was special and I am thankful for being out there so often and enjoy the beauties of Mother Nature.

My most memorable storm chasing events:

1) Tornadofest with 15+ tornadoes during 4-hour period on May 25th 2012 in central Kansas
2) An isolated well-structured “spaceship” supercell near Julesburg in Colorado, US on May 28th, 2013 which was like an UFO landing on Earth
3) A midnight supercell with photogenic tornado over water in Trieste gulf on August 8th 2008 which then hit me on the coast with severe wind gusts exceeding 150km/h
4) A very extreme Bora winds in Kvarner area, Croatia on November 11th, 2013 when I chased powerful winds in excess of 200 km/h around bridges Maslenica and Pag

I welcome you on my website and appreciate your time and support of my work! Thank you!

Something to remember while observing destructive storms.
"It's hard to enjoy the fascination of storm chasing when people are getting hurt" - Alan Moller

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