Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 3
Articles | Volume 26, issue 3
https://doi.org/10.5194/nhess-26-1561-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-1561-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 3
Research article
 | 
31 Mar 2026
Research article |  | 31 Mar 2026

Analysis on Multi-Factor Synergistic Hazards Mechanism of Wet Micro-Downburst: a Multi-Source Data Fusion Analysis Based on Passenger Vessel Capsizing Accident in Qianxi, Guizhou on 4 May 2025

Ankun Wu, Xi Guo, Dan Yao, Xiaoling Du, Dongpo He, Jue Li, Shisheng Jin, and Tienan Bai

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Short summary
Wet microbursts threaten ships; mechanisms unclear from limited data. To address we studied 2025 Guizhou reservoir accident (four ships capsized) with radar weather stations lightning monitors videos damage surveys. Dense rainclouds descended suddenly near water triggering >34 m/s divergent winds capsizing ships. 14.9 °C temp drop sharp pressure rise intra-cloud lightning; on-site traces (directional tree lodging bidirectional building damage) confirmed divergent winds.
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