A derecho climatology over the United States from 2004 to 2021

We develop the high-resolution (4 km and hourly) observational derecho dataset over the United States east of the Rocky Mountains from 2004 to 2021 by using a mesoscale convective system (MCS) dataset generated by the Python Flexible Object Tracker (PyFLEXTRKR) software, bow echo detection based on a semantic segmentation convolutional neural network, the Integrated Surface Database (ISD) hourly gust speed measurements, and physically based identification criteria.