Hurricane Rosa to bring heavy rain to southwest US after landfall in Mexico

Hurricane Rosa to bring heavy rain to southwest US after landfall in Mexico

Hurricane Rosa won’t be a hurricane by the time it reaches the Southwest, but the storm will bring heavy rain to Arizona, Southern California and Nevada early next week.

Rosa is weakening Saturday morning with maximum sustained winds of 100 mph. Additional weakening is expected over the weekend and Rosa will likely become a tropical storm by Sunday or Monday. The storm was located 625 miles south-southwest of Punta Eugenia, Mexico, and moving north at 9 mph as of 5 a.m.

The storm will continue in this direction Saturday, before turning northeast on Monday. It is likely Rosa will make landfall in Baja California on Monday.

After making landfall, Rosa will continue to weaken as a true tropical cyclone. However, Rosa or its remnants will track into the southwest U.S. late Monday and Tuesday.

The main threat from Rosa in the U.S. will be very heavy rainfall. In the southwest U.S., abundant tropical moisture from Rosa will cause very heavy rainfall, with possibly total rainfall from 1 to 6 inches, locally. This rainfall could cause life-threatening flash flooding and dangerous debris flows. Landslides in mountainous terrain are also possible.

A new flash flood watch has been posted that will go into effect for parts of Arizona, Nevada and California beginning on Monday.

Large waves are possible off the coast of Southern California through Monday, with waves reaching as high as 10 feet on south-facing beaches. High surf advisories have been issued for parts of Southern California.A trough moving into California will help pull what’s left […]


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