Lahars pose a direct threat to communities near Cascade Range volcanoes, including Mount Rainier, where towns like Orting, Puyallup, and Sumner could be devastated within 30 minutes of a lahar event. These mudflows can cause widespread destruction, including loss of life, property damage, and environmental harm. The unpredictable nature of lahars, which can be triggered by factors like heavy rainfall or landslides, adds to the challenge of preparedness. Researchers warn that the mountainous terrain could amplify the impact, making forecasting and emergency response critical.