StEER 2024 Houston Derecho Joint Preliminary Virtual Reconnaissance Report and Early Access Reconnaissance Report (PVRR-EARR)

In the evening of May 16, 2024, severe storms developing in southeast Texas evolved into a derecho that moved into the greater Houston area. The derecho was accompanied by heavy rainfall and two confirmed EF-1 tornadoes in Texas. Nearly one million people lost electricity and over 120 schools in the Houston Independent School District reported loss of power. The City of Houston estimated that nearly 1.5 billion cubic yards of residential storm debris from fallen trees was created, which has still not been totally removed at the time of this report. This Joint Preliminary Virtual Reconnaissance Report-Early Access Reconnaissance Report (PVRR-EARR) is StEER’s second product from this event and provides an overview of the Houston derecho and initial impression from field observations gathered by a University of Houston-based Field Assessment Structural Team (FAST).

2024年5月16日晚间，得克萨斯州东南部生成的强对流风暴逐渐发展为飑线（derecho），并移入休斯顿大都市区。此次飑线伴随强降雨过程，并在得克萨斯州境内催生了两起经确认的EF-1级龙卷风。近百万民众遭遇停电，休斯顿独立学区内超120所学校报告电力中断情况。休斯顿市政府估算，此次风暴在居民区内产生了约15亿立方码的倒伏树木风暴残屑，截至本报告发布之时，该部分残屑仍未完全清理完成。本联合初步虚拟侦察报告-早期访问侦察报告（PVRR-EARR）是StEER针对此次事件发布的第二篇成果，全面概述了休斯顿飑线灾情，并呈现了休斯顿大学现场评估结构小组（Field Assessment Structural Team, FAST）采集的实地观测初步结论。