StEER: 2025 May 16 St. Louis Tornado Joint Preliminary Virtual Reconnaissance Report-Early Access Reconnaissance Report (PVRR-EARR)

The primary product of StEER’s Level 2 to the 2025 St. Louis Tornado is this Joint Preliminary Virtual Reconnaissance Report-Early Access Reconnaissance Report (PVRR-EARR), which is intended to: (1) Provide an overview of the 2025 St. Louis Tornado, particularly relating to tornado impacts to the built environment, (2) Provide an overview of the regulatory environment and construction practices in the affected area, (3) Introduce the data collection methodology and chronology, (4) Summarize key observations from the field; and, (5) Provide recommendations for continued study of this event by StEER and the wider engineering reconnaissance community. Note that all observations and findings provided in this EARR should be considered preliminary and are based on the limited scope of the locally-led FAST.

StEER针对2025年圣路易斯龙卷风事件提交的二级核心成果为这份联合初步虚拟勘察报告-早期获取勘察报告（Joint Preliminary Virtual Reconnaissance Report-Early Access Reconnaissance Report，PVRR-EARR），本报告旨在实现以下目标：1. 概述2025年圣路易斯龙卷风事件，重点阐述龙卷风对建成环境造成的影响；2. 概述受影响区域的监管环境与建筑实践现状；3. 介绍本次数据采集的方法与时间线；4. 总结现场勘察获取的关键观测结果；5. 为StEER及更广范围的工程勘察界后续开展该事件的相关研究提供建议。请注意，本早期获取勘察报告（EARR）中呈现的所有观测结果与研究结论均为初步成果，仅基于当地主导的FAST有限的勘察范围。