Monsoon and tropical disturbance kill three in Four Corners region
Three drowning deaths reported as dangerous rainfall pounds Arizona, New Mexico, Utah, and Colorado.
What to know
- At least three people drowned in the Four Corners region as a monsoon enhanced by a tropical disturbance brought extreme rainfall to Arizona, New Mexico, Utah, and Colorado on September 16–17.
- The National Weather Service and AccuWeather warned of a potential 1-in-1,000-year rainfall event, with some areas receiving up to a foot of rain and rates exceeding 2 inches per hour, creating life-threatening flash flood conditions.
- Flood watches remained in place through at least Friday; the combination of saturated soil, mountainous terrain, and recent burn scars increased risks of mudslides and debris flows.
“Storms will produce high hourly rain rates, driving a persistent risk for severe flash flooding, rapid runoff into desert arroyos, mudslides in steep terrain and dangerous debris flows over recent burn scars across both states through the week.”
FOX Forecast Center, Weather forecaster · NY Post ↗ · Sep 15
Tyler Roys AccuWeather expert meteorologistNational Weather Service Federal weather forecasterFOX Forecast Center Weather forecaster
How it unfolded 1 development · click the chart to see its coverage articles
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FOX Forecast Center identifies tropical disturbance enhancing monsoon conditions
A tropical disturbance in the Gulf of California, moving onshore into Mexico, is surging tropical moisture northward into the Four Corners region. The setup creates Level 2–3 flash flood threats across Arizona and New Mexico through Friday, with persistent atmospheric lift driving repeated afternoon storms.
“A foot of rain across the region is a 1-in-1,000-year event and though we do not expect widespread rainfall of 12-inches, it is certainly possible locally. This storm has a lot of characteristics of a Tropical Rainstorm…”
— Tyler Roys, AccuWeather expert meteorologist · source -
first by FOX Weather, 7d ago · also NY Post
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Water rescues underway in Scottsdale and Phoenix as flash flooding begins — Active water rescues reported in Scottsdale with several vehicles stranded in approximately two feet of standing water. Additional rescues underway in the Phoenix area. All Ruidoso Municipal Schools closed due to hazardous conditions.
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NWS issues flood warnings; AccuWeather warns of 1-in-1,000-year rain event — National Weather Service meteorologists warned of heavy rainfall rates exceeding 2 inches per hour and continuous thunderstorms. AccuWeather expert Tyler Roys characterized the storm as having tropical rainstorm characteristics with potential for up to a foot of rain in some areas.
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Navajo Police respond to drowning in Shiprock, New Mexico — Early Wednesday morning, the Navajo Police Department Shiprock District responded to a possible drowning. Two adults and one juvenile were found dead at the scene.