A derecho climatology over the United States from 2004 to 2021

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