
A serious multi-day flood threat is underway in the Southwest as two former tropical systems turn the typically dry desert into a breeding ground for heavy rain.
Soaking rainfall began over the region Thursday night as increasingly humid air arrived. Parts of the Phoenix metro had picked up a half-inch or more of rain by Friday morning, with higher totals topping an inch in the mountains north of there.
Flood watches cover parts of five states, with the bull’s-eye of the most serious flood concern in central and northeastern Arizona and southwest Utah now into Saturday morning. That’s where a Level 3 out of 4 risk of flooding rainfall has been issued, according to the Weather Prediction Center. This…