This study investigates the characteristics and prevalent life cycle of agricultural flash droughts globally. Using ERA5 data, the researchers develop a flash drought indicator based on soil water availability, integrating root-zone soil moisture and hydraulic soil properties such as field capacity and wilting point to capture rapid soil moisture depletion and plant water stress. The findings show that agricultural flash droughts occur most frequently during critical crop growth periods, with a similar life cycle across different regions and climates. Precipitation deficits are the primary cause of rapid soil moisture depletion, while evapotranspiration also plays a significant role. In energy-limited environments, evapotranspiration increases before the drought intensifies and decreases during the intensification period as the system becomes water-limited. Once the intensification period ends, most crops experience water stress, reducing yields. Flash droughts, characterized by rapid soil drying over weeks to months, have become more common than slow droughts since the 1950s. Their frequency and severity are projected to increase globally, especially in croplands under high warming scenarios. Flash droughts are challenging to predict due to their rapid onset and intensification, and they can negatively impact crop yields and natural ecosystems worldwide. Agricultural flash droughts affect vegetation when there is a soil moisture deficit and plant water requirements are not met, especially during critical growth periods. Precipitation deficits and positive temperature anomalies are the main drivers. Soil moisture is a key indicator of land-atmosphere system moisture stress, affecting vegetation productivity. Plants with shallow roots, such as crops and pastures, are more sensitive to soil moisture deficits and can become stressed faster than plants with deep roots. Therefore, rapid soil moisture depletion is expected to impact crops and grasslands more severely than forests. The study proposes a flash drought indicator based on soil water availability, integrating physical processes with vegetation health impacts, particularly for agricultural regions. This method assesses the prevalent life cycle of agricultural flash droughts, highlighting global similarities. The study analyzes atmospheric and surface drivers throughout the cycle and discusses the impact of these droughts during critical crop growth periods. The study identifies eight world regions prone to high agricultural flash drought occurrence, including southern China, central-eastern Europe, India, southeastern South America, and southern Russia. These regions show the highest frequencies of agricultural flash drought events per decade. The study also highlights that agricultural flash droughts are most frequent in croplands during critical growth periods, with the transition from an energy-limited to a water-limited regime occurring during the growing season when evaporative demand is highest. The study uses ERA5 data to analyze the evolution of agricultural flash droughts, identifying the 2012 flash drought in the central-eastern United States and other well-documented flash drought events. The study finds that agricultural flash droughts exhibit similar evolution of relevant atmospheric and surface variables globally, with precipitation deficits being the main driver of rapid soil moisture depletion. The study also discusses the physical evolution of agricultural flashThis study investigates the characteristics and prevalent life cycle of agricultural flash droughts globally. Using ERA5 data, the researchers develop a flash drought indicator based on soil water availability, integrating root-zone soil moisture and hydraulic soil properties such as field capacity and wilting point to capture rapid soil moisture depletion and plant water stress. The findings show that agricultural flash droughts occur most frequently during critical crop growth periods, with a similar life cycle across different regions and climates. Precipitation deficits are the primary cause of rapid soil moisture depletion, while evapotranspiration also plays a significant role. In energy-limited environments, evapotranspiration increases before the drought intensifies and decreases during the intensification period as the system becomes water-limited. Once the intensification period ends, most crops experience water stress, reducing yields. Flash droughts, characterized by rapid soil drying over weeks to months, have become more common than slow droughts since the 1950s. Their frequency and severity are projected to increase globally, especially in croplands under high warming scenarios. Flash droughts are challenging to predict due to their rapid onset and intensification, and they can negatively impact crop yields and natural ecosystems worldwide. Agricultural flash droughts affect vegetation when there is a soil moisture deficit and plant water requirements are not met, especially during critical growth periods. Precipitation deficits and positive temperature anomalies are the main drivers. Soil moisture is a key indicator of land-atmosphere system moisture stress, affecting vegetation productivity. Plants with shallow roots, such as crops and pastures, are more sensitive to soil moisture deficits and can become stressed faster than plants with deep roots. Therefore, rapid soil moisture depletion is expected to impact crops and grasslands more severely than forests. The study proposes a flash drought indicator based on soil water availability, integrating physical processes with vegetation health impacts, particularly for agricultural regions. This method assesses the prevalent life cycle of agricultural flash droughts, highlighting global similarities. The study analyzes atmospheric and surface drivers throughout the cycle and discusses the impact of these droughts during critical crop growth periods. The study identifies eight world regions prone to high agricultural flash drought occurrence, including southern China, central-eastern Europe, India, southeastern South America, and southern Russia. These regions show the highest frequencies of agricultural flash drought events per decade. The study also highlights that agricultural flash droughts are most frequent in croplands during critical growth periods, with the transition from an energy-limited to a water-limited regime occurring during the growing season when evaporative demand is highest. The study uses ERA5 data to analyze the evolution of agricultural flash droughts, identifying the 2012 flash drought in the central-eastern United States and other well-documented flash drought events. The study finds that agricultural flash droughts exhibit similar evolution of relevant atmospheric and surface variables globally, with precipitation deficits being the main driver of rapid soil moisture depletion. The study also discusses the physical evolution of agricultural flash