Phoenix, AZ – Forecasters are warning residents across Arizona, Utah, and parts of southern Nevada and Colorado to prepare for potential flash flooding later this week as moisture from Hurricane Priscilla moves inland.
According to the NOAA Weather Prediction Center, deep tropical moisture from Priscilla is expected to interact with a strong upper-level trough, producing widespread rainfall of 2–4 inches, with local totals up to 6 inches, through Saturday morning.
The greatest flash flood risk extends from central Arizona through southern Utah—including Flagstaff, Cedar City, and Blanding—with a “Slight Risk” area (level 2 of 4) indicating scattered flash flooding is possible. The marginal risk area also stretches west toward Las Vegas and southern California.
The NWS advises travelers and residents to monitor local alerts, especially in slot canyons, burn scars, and low-lying areas, which are most vulnerable to rapid flooding.
“Scattered instances of flash flooding are expected from Thursday into Saturday morning,” the agency said in a Wednesday update.
Motorists are urged never to drive through flooded roadways, as even a few inches of water can sweep vehicles away.
