0400Report

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OrangeRegional levelFirst report

A late-season atmospheric river is bringing a second round of flash flooding today across Arizona, southern Utah, southern Nevada, southwest Colorado and northwest New Mexico, on ground still soaked from late-October floods. Heavy mountain snow follows tonight and Monday, and parts of the Navajo Nation are still waiting on power and water to be restored.

Drops to Yellow if the rain ends Monday and the Animas and San Juan rivers crest without new evacuationsGoes Red if rivers top forecasts and force new Four Corners evacuations

This threat level is the 0400 Report's own assessment, not an official government alert, warning or declaration. For official alerts where you live, follow your local emergency officials and the National Weather Service. How we set it

SITREP What changed in this region

ongoingWater

Animas River crest forecast near a 1947 record; Navajo utilities still recovering

NWS Albuquerque expects the Animas at Farmington to crest Monday evening just above its 1947 mark, though it rates the flooding minor. After the Oct 21-24 floods, the Navajo Tribal Utility Authority was still restoring water and power in communities including Chinle, Tuba City, Kayenta and Shiprock.

newWeather

Heavy mountain snow tonight into Monday

NWS Pueblo has a Winter Storm Warning for the eastern San Juans, with 8 to 14 inches above 10,000 feet and 50 mph gusts, making Wolf Creek and Cumbres passes very difficult. Utah's upper Cottonwood Canyons and ranges in Wyoming and Montana are also under watches and advisories.

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Power & utilities

elevated

As of Oct 27, crews were still restoring power and water in dozens of Navajo Nation communities after the late-October floods, with no date for full restoration.

As of Oct 27, crews were still restoring power and water in dozens of Navajo Nation communities after the late-October floods, with no date for full restoration. New rain and muddy roads could slow repairs.

Weather & hazards

critical

Flash flooding is underway across several states under a WPC Moderate Risk, with active warnings in Arizona and Utah and a near-record crest forecast on the Animas.

Flash flooding is underway across several states under a WPC Moderate Risk, with active warnings in Arizona and Utah and a near-record crest forecast on the Animas. Heavy snow and strong winds follow Monday in the Rockies.

Travel & transport

elevated

Expect hard travel over Wolf Creek, Cumbres and other high passes tonight and Monday, and flooded low-water crossings around Lake Mead.

Expect hard travel over Wolf Creek, Cumbres and other high passes tonight and Monday, and flooded low-water crossings around Lake Mead. Utah's SR-162 out of Bluff was still closed after the earlier floods.

Health, water & safety

elevated

Officials warn people to stay out of the San Juan River below breached wastewater lagoons, and some Navajo communities still lacked water service.

Officials warn people to stay out of the San Juan River below breached wastewater lagoons, and some Navajo communities still lacked water service. Gas runs high across the region (Nevada $5.25, Utah $4.62, Idaho $4.60).

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