More than 11 million people in the Southwest are under flash flood warning as Tropical Storm Rosa dumps record rainfall on Arizona
Rosa was downgraded from a Category 4 hurricane but heavy rainfall continues
Dumped more than 2 inches of rain on Arizona, with record amounts in Phoenix
Flash flood watches remain for southern California, Nevada, Idaho, Colorado
Rosa is expected to head out of Arizona by Wednesday and next hit Utah
Utah Gov Gary Herbert declared state of emergency in case of potential flooding
JESSICA FINN
DAILYMAIL.COM
3 October 2018
More than 11 million people are under a flash flood watch in the Southwest US as Tropical Storm Rosa continues to spread.
Rosa was downgraded from a Category 4 hurricane on Tuesday, but that hasn’t stopped the storm’s heavy – and potentially dangerous – rainfall.
It has already dumped more than 2 inches of rain on much of Arizona, and flash flood watches remain in effect for southern California, Nevada, Idaho, Utah, and Colorado.
‘These rainfall amounts may produce life-threatening flash flooding,’ the National Hurricane Center said.
‘Dangerous debris flows and landslides are also possible in mountainous terrain.’
Rosa is also expected to drench Baja California with 3 to 6 inches of rain, while some areas could see as much as 10 inches, according to the National Hurricane Center.
The storm is expected to move out of Arizona by Wednesday afternoon and next bring rain to both Utah and Colorado.
Remnants of Rosa have already dropped a record amount of rain on Phoenix.
National Weather Service meteorologists say 2.35 inches of rain was recorded at Phoenix Sky Harbor International Airport as of Tuesday night.
That made it the rainiest October day since records have been kept, topping the 2.32 inches recorded on October 14, 1988.
It also marked the eighth rainiest day in Phoenix’s history.
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