Grand Junction, Colo. – Another round of afternoon thunderstorms is expected across western Colorado today as lingering monsoonal moisture combines with daytime heating, bringing the threat of heavy rain, localized flash flooding and hazardous travel conditions in parts of the region.
According to the National Weather Service in Grand Junction, thunderstorm chances range from 60% to 80% across the higher terrain and mountains, while lower elevation valleys, including the Grand Junction area, have a 20% to 40% chance of storms this afternoon and evening.
Although storms are expected to move faster than in recent days, forecasters warn that localized heavy rainfall could still produce flash flooding, especially in areas with poor drainage, slot canyons, burn scars and normally dry washes. Additional hazards include frequent lightning, gusty winds and small hail with stronger thunderstorms.
Communities including Grand Junction, Montrose, Delta, Glenwood Springs, Telluride, Ouray, Durango and surrounding mountain areas should be prepared for rapidly changing weather during the afternoon and evening hours. Outdoor recreation in the mountains carries an elevated risk as thunderstorms develop.
Residents and visitors should move indoors immediately at the first sound of thunder, avoid flooded roads and never attempt to drive through water-covered crossings. Those hiking or camping should plan to be below tree line before storms develop and have a safe shelter identified in advance.
Temperatures will remain near to slightly below normal today before warmer and slightly drier conditions return Friday. The National Weather Service will continue monitoring the potential for localized flooding and may issue additional watches or warnings if heavier storms develop.
