Results 51 to 60 of about 444 (139)

Two archetypes of tornadic quasi‐linear convective systems in the United Kingdom: Relevance of horizontal shearing instability to vortexgenesis and maintenance

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 770, July 2025 Part A.
Two archetypes of tornadic quasi‐linear convective systems with and without horizontal shearing instability. Modeled surface precipitation rates (mm ·hr$$ \cdotp \mathrm{hr} $$ −1$$ {}^{-1} $$; colored) and absolute vorticity (contours every 3×10−3$$ 3\times 1{0}^{-3} $$ s −1$$ {}^{-1} $$; dashed when negative) after vortexgenesis from the model domain.
Ty J. Buckingham, David M. Schultz, Paul M. Markowski, Robert J. Trapp   +3 more
wiley   +1 more source

Rain in convective downdraughts

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 768, April 2025 Part A.
This study presents results from the simulation of idealised, rain‐laden downdraughts using the large‐eddy model MONC. It is found that a drier environment has the effect of increasing cooling in the downdraught, but reducing the peak in downdraught speed.
G. G. Rooney, B. J. Shipway, D. J. Parker   +2 more
wiley   +1 more source

Tornado Seasonality in Central‐Southern Chile

Geophysical Research Letters, Volume 52, Issue 1, 16 January 2025.
Abstract Tornado records in Chile show an apparent seasonality with a peak between May and June. We study this seasonality in central‐south and austral Chile by analyzing three indicators of tornado environments: vorticity generation parameter (VGP), storm‐relative helicity (SRH) and mean relative humidity RH‾ $\left(\overline{RH}\right)$.
V. Caballero‐Morán, R. Rondanelli
wiley   +1 more source

THE INFLUENCE OF BOUNDARY-LAYER SHEAR AND STATIC STABILITY ON LOW-LEVEL VERTICAL ACCELERATIONS IN A SUPERCELL [PDF]

, 2018
It is well documented that tornadoes are formed from a special breed of rotating thunderstorms called supercells, and that tornadogenesis is a result of several factors, one of which is the vertical stretching of low-level vorticity.
Caulfield, Sean P.
core   +2 more sources

Drivers of Cold Frontal Hourly Extreme Precipitation: A Climatological Study Over Europe

Geophysical Research Letters, Volume 51, Issue 20, 28 October 2024.
Abstract In the mid‐latitudes extreme precipitation events are strongly associated with cold fronts. By exploring drivers across different scales and relating them to precipitation, we aim to improve our understanding of processes influencing cold frontal extremes.
Armin Schaffer, Tobias Lichtenegger, Heimo Truhetz, Albert Ossó, Oscar Martínez‐Alvarado, Douglas Maraun   +5 more
wiley   +1 more source

Comparative Analysis of Near-Storm Environmental Characteristics of Tornadoes in Northern and Southern China Based on Himawari-8 Satellite and ERA5 Data

Remote Sensing
Continuous monitoring and nowcasting of tornadic near-storm environments remain challenging, particularly in regions with limited ground-based weather radar coverage. High-spatiotemporal-resolution geostationary satellite remote sensing offers a valuable
Yang Zhao, Ruoxuan Li, Xiangzhen Kong, Cheng Cheng, Yijian Chen, Kangkang Zhuang, Yinping Liu, Qilin Zhang   +7 more
doaj   +1 more source

Supercells and Tornado‐Like Vortices in an Idealized Global Atmosphere Model

Earth and Space Science, Volume 11, Issue 5, May 2024.
Abstract We investigate the representation of individual supercells and intriguing tornado‐like vortices in a simplified, locally refined global atmosphere model. The model, featuring grid stretching, can locally enhance the model resolution and reach cloud‐resolving scales with modest computational resources.
Kai‐Yuan Cheng, Shian‐Jiann Lin, Lucas Harris, Linjiong Zhou   +3 more
wiley   +1 more source

Role of land cover boundaries on tornadogenesis in Indiana.

, 2004
Tornadoes pose a significant threat to residents of Indiana due to a large relative frequency of events that is comparable to most states within classic Tornado Alley.
Frye, John D.
core  

An unusually prolonged Pacific-North American pattern promoted the 2021 winter Quad-State Tornado Outbreaks

npj Climate and Atmospheric Science
This study examines the large-scale atmosphere-ocean environments that led to the winter tornado outbreak across the Ohio Valley on 10–11 December 2021, also known as the Quad-States Tornado Outbreaks. Here, we show that the Quad-States Tornado Outbreaks
Dongmin Kim, Sang-Ki Lee, Hosmay Lopez, Jong-Hoon Jeong, Jin-Sil Hong   +4 more
doaj   +1 more source

Dual drivers of European severe weather: how the NAO and low-frequency climate variability modulate the seasonal transition from shear- to CAPE-dominated tornadogenesis

Weather and Climate Extremes
The climatology of severe convective storms is well documented in the United States, but the large-scale atmospheric drivers of European tornadoes remain less well understood.
Matthieu Lacroix, Flavio T. Couto, Yanni Gunnell   +2 more
doaj   +1 more source