Heavy rain triggered flooding across Tucson as KVOA’s Stormtracker 4 issued an Alert Day for the Arizona city. Streets and low-lying areas took on water, creating dangerous driving conditions for commuters. Forecasters tracked the storm closely as rainfall totals climbed across southern Arizona. Residents were urged to avoid flooded roads and stay weather-aware as conditions developed. The storm underscores how quickly intense rain can overwhelm drainage systems in the desert Southwest.