Overview
- Flood Watches issued by the National Weather Service cover most of Arizona through Tuesday with showers and thunderstorms already developing across the state.
- Forecasters say the highest risk for widespread heavy rain is Tuesday morning, when parts of the Phoenix Valley could get 0.5–1 inch and some northern and eastern areas could receive 2–3 inches.
- Storms have produced measurable impacts on Monday with about 1,200 Salt River Project customers and roughly 300 Arizona Public Service customers without power and FAA-reported departure delays at Phoenix Sky Harbor averaging about 15 minutes.
- City officials in Scottsdale are actively monitoring conditions, warning that washes such as the Indian Bend Wash can rise quickly, and offering free sandbags at two self-service locations with a limit of 10 per household.
- Dry desert soils and paved surfaces boost runoff and speed flash flooding, so residents should avoid driving through flooded roads or washes and watch local alerts; forecasters also note strong El Niño conditions raise the odds of a wetter-than-normal season ahead.