ANALYSIS OF A NON-SUPERCELL TORNADO IN SOMBOR ON JULY 10, 2014

Around 14:00 UTC, on July 10, 2014 a non-supercell tornado-a landspout, formed and occurred within a convective cloudiness in the S-SW upper air flow and moved over Sombor (45°46' N, 19°06' E, h=89 m). Synoptic conditions, type of synoptic situation which caused the landspout event, CAPE, LI indices and adiabatic stability of the atmosphere have been analysed in this paper. An analysis of sounding measurements and satellite images has also been done. Based on field survey analysis and using the Fujita scale method (F-scale), damage estimates have been shown in order to determine the tornado strength. The three main objectives of this research are: 1) analysis of atmospheric synoptic conditions that caused the landspout development in northern Backa using the data obtained from upper air and surface maps; 2) investigation into the satellite images data and radiosounding measurements; 3) to determine the evolution of the parent cloud from which the landspout developed using these methods. This article therefore represents a contribution to understanding of atmospheric conditions which favour a suitable synoptic and thermodynamic environment for a landspout genesis and development

Tornadic waterspout event in Split (Croatia) - analysis of meteorological environment

The aim of this paper is the waterspout in Split (phi 43.51 degrees N, lambda 16.45 degrees E, h = 0 m) observed on January 6, 2016, which swept over the city at 15:40-16:00 CET (14:40-15:00 UTC). There were convective developments in upper-level south-west flow within the cloudiness which followed the low-level cyclone and associated frontal disturbances. There was an intense thermodynamic instability in lower and mid layers of the atmosphere-the passage of the cold front as a main synoptic feature over the warm Adriatic water, pronounced directional and speed wind shear, as well as the presence of jet stream and a pronounced horizontal field of positive divergence above the observed area. The aim of this paper is to investigate synoptic and mesoscale situation, and meteorological conditions which created favourable thermodynamic environment which preceded the waterspout development

Relationship between mean annual temperatures and precipitation sums in montenegro between 1951-1980 and 1981-2010 periods

In the second half of the 20th and by the beginning of the 21st century the area of Montenegro was dominated by positive air temperature fluctuations and negative precipitation sums. This paper analyses a 60-year period (1951-2010), with the aim to determine air temperature and precipitation deviation between the two 30-year periods: 1951-1980 and 1981-2010. Calculations of mean, mean maximum and mean minimum temperature have been done, as well as annual values of precipitation sums. All three temperature parameters, particularly maximum values, show that the 1981-2010 period was significantly warmer in relation to previous three decades. Significant changes in mean annual precipitation sums between the two observation periods have been recorded on the coast and, locally, in the western part of the country. The results also showed that there was a significant increase in positive deviations of mean maximum temperature in most parts of Montenegro during the 1981-2010 period in relation to the 1951-1980 period, while changes of this type in other observation parameters were mostly minor

Synoptic characteristics of an extreme weather event: the tornadic waterspout in Tivat (Montenegro), on June 9, 2018

Recently Montenegro has often been faced with extreme weather events. The aim of this paper is to provide a detailed synoptic analysis of a severe weather event, a waterspout, and to confirm an indication that in most cases such events could potentially be forecasted, which is of great practical significance, since human lives and property can be saved. The paper presents the research results of synoptic and mesoscale weather conditions which created a favourable meteorological environment for a waterspout development in Tivat (Montenegrin coast) on June 9, 2018, around 01 UTC (03 CET). Based on field survey analysis, the rating of tornado intensity by the Fujita scale (F-scale) has been done by assessing the damage. The synoptic type for this situation was CLOSED-SW and was determined by a detailed examination of atmospheric circulation. The results presented in the manuscript can help decision makers in Montenegro to take certain adaptation measures (above all, in tourism and construction) in order to mitigate the negative consequences of weather extremes

Koncept sprovođenja komasacije u Republici Srbiji

Land consolidation means a system of spatial planning, technical, legal and socio-economic measures takes by the community for a fundamental improvement of natural, economic and environmental conditions of the land territory with the aim of providing better living and working conditions and environmental protection. This document shows the analyzes of land consolidation development in Republic of Serbia, as well as the facilities and the problems that accompany it. On a practical case for land consolidation area K. O. Priboj, City of Leskovac, an analysis of the situation before land consolidation - the old condition and conditions after land consolidation - a new condition. Explained the phases in the process of land consolidation, and is particularly explained one of the most important stage - the allocation of land consolidation land mass.Uređenje zemljišne teritorije podrazumeva sistem prostorno-planskih, tehničkih, pravnih i ekonomsko-socijalnih mera koje društvena zajednica preduzima za temeljno poboljšanje prirodnih, privrednih i ekoloških uslova zemljišne teritorije s ciljem obezbeđenja kvalitetnijih uslova života i rada i zaštite životne sredine. U radu je analiziran koncept sprovođenja komasacije u Republici Srbiji, kao i pogodnosti i problemi koji prate isti. Na praktičnom primeru za komasaciono područje K.O. Priboj, Grad Leskovac, izvršena je analiza stanja pre komasacije - starog stanja i stanja posle komasacije - novog stanja. Objašnjene su faze u postupku komasacije, a posebno je objašnjena jedna od najbitnijih faza u komasaciji - raspodela zemljišta iz komasacione mase

Landspout across Novi Beograd, 24 may 2012: Synoptic analysis

In this study we have analysed a case of the landspout across Novi Beograd on 24 May 2012. We have used a synoptic analysis method in the research and the description of the landspout event is based on visual evidence and photographs. According to the available data, it can be concluded that there were favourable conditions for a landspout development since there was a process and an increased amount of instability. The landspout occured within the northeast stream which moved over Belgrade and further toward the southeast and west. Based upon synoptic data analysis, it can’t be said that there was a cold air advection. Surface air was warm enough, but not the air in the upper layers of the atmosphere. The conditions for a landspout development were favourable - high relative air humidity and increased vertical and horizontal air currents

Forest fires in Finland - the influence of atmospheric oscillations

In Finland, in the period 1996-2017, 28,434 forest fires were recorded (an average of 1,292.5 per year), and the total burned area was 11,922 ha (an average of 541.9 ha per year). In both cases, a statistically nonsignificant downward trend was recorded. Forest fires in Finland do not represent a particularly significant problem, primarily due to climatic characteristics, well-organized fire protection, and low density of population. The research of climate influence included the Atlantic Multidecadal Oscillation (AMO), the North Atlantic Oscillation (NAO), and the Arctic Oscillation (AO). The statistically significant values (p lt = .05) of Pearson correlation coefficient were recorded for the August values of NAO and the surface area of burned forest (-0.44), the June values of NAO and the average surface area of forest burned per fire (-0.51) and the May AO values and the average surface area of forest burned per fire (-0.45). For the June values of NAO and the average surface area of forest burned per fire, the Lomb periodogram shows four significant peaks, and the match is at two, at 2.4 and 3.4 years, which supports the hypothesis of the connection between NAO and forest fires in Finland

Contribution to the study of climate change in Serbia using continentality, oceanity, and aridity indices

The aim of the study is to present some specific climatic conditions on the territory of the Republic of Serbia based on the analysis of four climate indices, which can help in understanding contemporary climate changes. Temperature and precipitation data from 31 meteorological stations for the period 1951–2010 were used. The relative homogeneity of the data series was done using the MASH v3.02 method. The indices used are: Johansson Continentality Index, Kerner Oceanity Index, De Martonne Aridity Index, and Pinna Combinative Index. Geospatial analysis of the distribution of the values of the four mentioned indices was done using the QGIS package 2.8.1. The results of the research show that the continentality effect is present in most of Serbia, while oceanity is observed locally, mainly in the western and southwestern parts of the country. The further analysis showed that there is no dry and semi–dry Mediterranean climate in Serbia. Considering that it is dry in the warmest part of the year (July–September), when the need for water is increased, which is clearly shown by the Walter climate diagram, as well as the fact that an increase in temperature and a decrease in precipitation during the vegetation period were observed in the second 30–year period (1981–2010), it can be concluded that in Serbia there is a tendency towards arid climate. The results presented in this paper can help decision makers to plan certain climate change adaptation measures

Pojava trombe na Novom Beogradu 24. maja 2012. godine - sinoptička analiza

In this study we have analysed a case of the landspout across Novi Beograd on 24 May 2012. We have used a synoptic analysis method in the research and the description of the landspout event is based on visual evidence and photographs. According to the available data, it can be concluded that there were favourable conditions for a landspout development since there was a process and an increased amount of instability. The landspout occured within the northeast stream which moved over Belgrade and further toward the southeast and west. Based upon synoptic data analysis, it can't be said that there was a cold air advection. Surface air was warm enough, but not the air in the upper layers of the atmosphere. The conditions for a landspout development were favourable - high relative air humidity and increased vertical and horizontal air currents.U radu je prikazan slučaj pojave trombe 24.05.2012. na Novom Beogradu. U istraživanju je korišćen metod sinoptičke analize, a opis pojave trombe temelji se na vizuelnom opažanju i fotografijama. Prema raspoloživim podacima može se zaključiti da su uslovi za razvoj trombe bili povoljni, jer je postojao i proces i povećana energija nestabilnosti. Tromba se javila u sklopu severoistočne struje koja se premeštala preko Beograda dalje na jugozapad i zapad. Na osnovu analize sinoptičkog materijala, ne može se reći da se radilo o advekciji jako hladnog vazduha. Bilo je dovoljno toplote u prizemlju, ali ne i po visini. Postojali su povoljni uslovi za nastanak trombe - visoka vlažnost vazduha, izražena vertikalna i horizontalna strujanja