Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/nhess-2018-45
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
21 Mar 2018
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).
Monitoring, cataloguing and weather scenarios of thunderstorm outflows in the Northern Mediterranean
Massimiliano Burlando1, Shi Zhang1,2,3, and Giovanni Solari1 1Department of Civil, Chemical and Environmental Engineering (DICCA), University of Genoa, Genoa 16145, Italy
2School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
3Beijing’s Key Laboratory of Structural Wind Engineering and Urban Wind Environment, Beijing 100044, China
Abstract. High-sampling rate (10 Hz) anemometric measurements of the Wind, Ports, and Sea monitoring network in the Northern Tyrrhenian Sea have been analyzed to extract the thunderstorm-related signals and catalogue them into three families according to the different time-scale of each event, subdivided among 10 minutes, 1 hour and 10 hours long events. Their characteristics in terms of direction of motion and seasonality/daily occurrence have been analysed: it turned out that most of the selected events come from the sea and occur from 12:00 to 00:00 UTC during the winter season. In terms of peak wind speed, the strongest events all belonged to the 10-min family, but no systematic correlation was found between event duration and peaks.

Three events, each one representative of the corresponding class of duration, have been analysed from the meteorological point of view in order to investigate their physical nature. According to this analysis, which was mainly based on satellite images, meteorological fields obtained from GFS analyses related to convection in the atmosphere, and lightning activity, the thunderstorm-related nature of the 10 min and 1 h events was confirmed. The 10 h event turned out to be a synoptic event, related to extra-tropical cyclones activity.

Citation: Burlando, M., Zhang, S., and Solari, G.: Monitoring, cataloguing and weather scenarios of thunderstorm outflows in the Northern Mediterranean, Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2018-45, in review, 2018.
Massimiliano Burlando et al.
Massimiliano Burlando et al.
Massimiliano Burlando et al.

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Short summary
Thunderstorms are difficult phenomena to measure systematically, as they occur randomly in space and time, have short duration and limited size. Recently, a large anemometric network for thunderstorm outflow monitoring and cataloguing has been realized in the Northern Mediterranean. This paper analyses about 200 events to study their seasonality, advection, duration and intensity. The link between wind speed records, meteorological events and weather scenarios is investigated.
Thunderstorms are difficult phenomena to measure systematically, as they occur randomly in space...
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