Mountain West and Southwest

Hazards, infrastructure, security, and notable state actions for this region, collected from every edition. Newest first.

Sunday, November 1, 2026 DTG 020120Z NOV 26

Arizona flooding: Sedona ordered mandatory evacuations as Oak Creek reached historic levels, and crews carried out six rooftop rescues. Tucson-area agencies reported at least 16 water rescues, with no injuries reported. Evacuations also hit Camp Verde, Cornville, Gila County, and Queen Valley. Flash flood warnings remain in Apache, Navajo, and southeast Arizona counties tonight, and flood warnings cover dozens of points in Maricopa and Yavapai counties. (KNAU, FOX 10, KOLD, AP, NWS Flagstaff)
Four Corners: Flood watches and warnings continue across northwest New Mexico, southwest Colorado (La Plata and Rio Grande counties), and southern Utah, with a flood watch for Colorado's San Luis Valley into Friday. A severe thunderstorm watch covers central New Mexico tonight. (NWS Albuquerque, NWS Grand Junction, NWS Pueblo)
High-country snow: Winter storm warnings cover the San Juan Mountains into Monday, with avalanche advisories, and winter weather advisories reach Colorado's central mountains, Wyoming, Montana's Bighorns, and Utah's Wasatch. (NWS Grand Junction)

Atmospheric river flooding: Flood watches cover nearly all of Arizona and parts of southern Utah, southwest Colorado, western New Mexico, and southern Nevada through Monday. NWS Phoenix calls the moisture levels near all-time records for this time of year. A flood warning covers Salt River releases from Granite Reef Dam in Maricopa County. (NBC News, AP, NWS flood watch summary, NWS Phoenix)
Colorado: A state disaster emergency for flooding in 12 southwest counties has been active since Oct. 23. More than 100 Colorado National Guard members are deployed, and the Guard reported about 40 people rescued as of Oct. 28. The state emergency operations center remains at its highest activation level. (Colorado DHSEM, Oct. 30, Colorado National Guard, KKTV)
High-country snow: Winter storm warnings cover the San Juan Mountains above 10,000 ft through Monday and Nevada's Ruby Mountains through Sunday. (NWS Grand Junction, NWS Elko)