TY JOUR TI CLIMATIC NORMS OF THUNDERSTORMS RECURRENCE OVER SIBERIAN CITIES FOR THE MONTHS OF THE FIRE-DANGEROUS SEASON UNDER MODERN CLIMATE WARMING KW siberia KW representative point KW emergency situation KW recurrence of thunderstorms KW modern climate warming KW climatic norm KW trend JO Siberian Fire and Rescue Bulletin AU KHoloptsev, A.V. AU Sedov, D.V. PY 2024 IS 2024 PB FSBEE HE Siberian Fire and Rescue Academy EMERCOM of Russia