The primary danger during a Red Flag Warning is the rapid spread of wildfires, which can threaten homes, infrastructure, and public safety. Fires under these conditions can grow uncontrollably, jump firebreaks, and spread erratically due to gusty winds of up to 40-45 mph. The extremely low humidity, dropping into single digits in some areas, further exacerbates the risk. Fire agencies are on high alert, increasing staffing and preparing for rapid response. Residents in affected areas are urged to exercise extreme caution, as even a small spark from human activity or natural causes could ignite a wildfire.