Flood Watches cover New Mexico, Utah and Colorado, heavy-rain threat shifts to South Dakota
Another round of heavy showers and thunderstorms was forecast across parts of New Mexico, Utah and Colorado on September 17, 2026, prompting Flood Watches for areas vulnerable to rapid runoff and flash flooding. A moisture-rich disturbance was then expected to move northeast into South Dakota, where the National Weather Service’s Weather Prediction Center (WPC) forecast 51–102 mm (2–4 inches) of rain with locally higher totals.

