Rainfall Thresholds

Rainfall thresholds refer to specific amounts of rainfall that, when exceeded, increase the likelihood of certain hazards like floods or landslides. For example, if a region typically experiences only 20mm of rain in a day, but a threshold for flooding is set at 50mm, then rainfall above this level signals a higher risk. These thresholds are determined based on historical data, local geography, and climate patterns, helping authorities predict and prepare for potential natural disasters more effectively.