An observational study of the 7 September 2005 Barcelona tornado outbreak - Archive ouverte HAL Access content directly
Journal Articles Natural Hazards and Earth System Sciences Year : 2007

An observational study of the 7 September 2005 Barcelona tornado outbreak

Abstract

This paper presents an observational study of the tornado outbreak that took place on the 7 September 2005 in the Llobregat delta river, affecting a densely populated and urbanised area and the Barcelona International airport (NE Spain). The site survey confirmed at least five short-lived tornadoes. Four of them were weak (F0, F1) and the other one was significant (F2 on the Fujita scale). They started mostly as waterspouts and moved later inland causing extensive damage estimated in 9 million Euros, three injured people but fortunately no fatalities. Large scale forcing was provided by upper level diffluence and low level warm air advection. Satellite and weather radar images revealed the development of the cells that spawned the waterspouts along a mesoscale convergence line in a highly sheared and relatively low buoyant environment. Further analysis indicated characteristics that could be attributed indistinctively to non-supercell or to mini-supercell thunderstorms.
Fichier principal
Vignette du fichier
nhess-7-129-2007.pdf (965.51 Ko) Télécharger le fichier
Origin : Explicit agreement for this submission

Dates and versions

hal-00301678 , version 1 (18-06-2008)

Identifiers

  • HAL Id : hal-00301678 , version 1

Cite

J. Bech, R. Pascual, T. Rigo, N. Pineda, J. M. López, et al.. An observational study of the 7 September 2005 Barcelona tornado outbreak. Natural Hazards and Earth System Sciences, 2007, 7 (1), pp.129-139. ⟨hal-00301678⟩

Collections

INSU EGU
146 View
212 Download

Share

Gmail Facebook X LinkedIn More