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Flash drought is a space–time phenomenon with rapid intensification nature that poses a series of challenges for early warning systems and drought relief. Traditional works do not consider the space–time dynamic processes of flash droughts, unable to provide important information such as how fast an event spreads in space that hampers governors and stakeholders from making timely drought mitigation operations. Here we introduced a novel framework for tracking flash droughts that fully accounts of their dynamic space–time behavior, with focus upon the instantaneous intensification/recovery rate (IIR/IRR) and spatial propagation. Flash drought events were defined by a space–time coherent set of grids where pentad-scale standardized evapotranspiration deficit index is below a prescribed threshold. The drought development/recovery stage is identified in terms of intensity, and IIR/IRR between two …