Floods and drought modeling and monitoring are critical components of water resources management, providing essential insights into the dynamics of extreme hydrological events. Flood modeling involves the simulation of flood inundation extents, depths, and velocities under various scenarios, utilizing hydrological and hydraulic models to assess flood risk and inform floodplain management strategies. Conversely, drought modeling focuses on predicting the onset, duration, and severity of droughts, using hydrological and meteorological data to assess water availability and anticipate impacts on ecosystems, agriculture, and society. Monitoring systems, including satellite imagery, ground-based sensors, and remote sensing technologies, play a vital role in tracking real-time hydrological conditions and providing early warnings for both floods and droughts. By integrating modeling and monitoring approaches, stakeholders can enhance preparedness, mitigate risks, and implement adaptive strategies to build resilience in the face of increasingly frequent and severe water-related hazards.