Tropical Storm Polo Forecast to Cause Flash Flooding in US Southwest

Tropical Storm Polo, now downgraded from a hurricane, is projected to bring heavy rainfall and a significant flash flood threat to the southwestern United States, impacting regions from Arizona to Iowa. Flash flood watches are in effect for over 14 million Americans, with some areas potentially receiving up to 2 inches of rain per hour. This situation poses a substantial risk to public safety and infrastructure across the affected states.