Severe Pacific storm systems triggered widespread flash floods and mandatory evacuations across Arizona and Colorado on Sunday, November 1, 2026. Emergency officials warned of historic river crests, extensive property damage, and multi-month rainfall totals compressed into a two-day span across the typically arid American Southwest.
Historic Flood Risks Along the San Juan River
In the southwestern mountain town of Pagosa Springs, Colorado, local authorities issued stark warnings regarding potential catastrophic flooding as the San Juan River approached an expected peak exceeding 5.8 meters (19 feet) late Sunday night, Associated Press reported. The Archuleta County Sheriff’s Office noted that this level surpasses the devastating 1911 flood, which reached approximately 5.4 meters (17.8 feet) and reshaped the local landscape.
According to Diario Libre, officials urged residents in low-lying areas near the San Juan, Rio Blanco, Navajo, and Piedra rivers to evacuate immediately to an established shelter inside a local church. Emergency personnel anticipated severe resource constraints at the height of the storm, prompting authorities to close inbound traffic lanes along the primary access route into the mountain community on Sunday afternoon.
Katie German, propietaria y chef de Bruin Coffee en Pagosa Springs, comentó a Independent Español que el centro de la ciudad fue evacuado y que había calles inundadas, añadiendo que su mayor preocupación era que el único puente de acceso al pueblo fuera arrasado.
Rapid Water Rescues and Evacuations Across Arizona
Further south in Arizona, the tourist destination of Sedona faced severe flash flooding along Oak Creek. Local officials ordered immediate evacuations for neighborhoods near the swelling banks, where several residents found themselves trapped inside residential structures as water levels surged.
Neighboring communities mobilized quickly. Officials in Camp Verde issued mandatory evacuation orders for properties situated near the Verde River, West Clear Creek, and Wet Beaver Creek. Sedona Fire District Chief Ed Mezulis shared emergency video footage documenting fast-moving muddy torrents sweeping past homes and submerging vehicles, confirming that mutual-aid response teams from surrounding districts were rushed in to handle the high volume of water rescue calls.
Evacuated residents in Sedona were directed to gather at Sedona Red Rock High School, while emergency management agencies across the state broadcasted urgent warnings advising the public against driving through standing water or lingering near normally dry riverbeds.
Unprecedented Precipitation Totals Prompt Regional Alerts
The intense meteorological event stems from a continuous train of Pacific storm systems that began dumping heavy precipitation late Saturday evening. Aaron Hardin of the National Weather Service office in Tucson explained that the regional deluge is projected to drop up to 10 centimeters (4 inches) of rain, delivering two to three months’ worth of normal precipitation in just a 48-hour window.
Flood warnings and advisories blanketed nearly the entirety of Arizona, alongside portions of southern Utah, southwestern Colorado, western Nuevo Mexico, and southern Nevada, impacting the broader Four Corners region. In Tucson, located roughly 370 kilometers (230 miles) south of Sedona, rising waters necessitated rapid-boat rescues amid widespread street flooding.
| Location | Key Waterway | Forecast / Peak Level | Historical Comparison |
|---|---|---|---|
| Pagosa Springs, Colorado | San Juan River | Exceeding 5.8 meters (19 feet) | 1911 flood reached 5.4 meters (17.8 feet) |
| Sedona, Arizona | Oak Creek | Rapid flash flooding / structural inundation | Multiple residents trapped in homes |
| Camp Verde, Arizona | Verde River & Creeks | Mandatory evacuations issued | Widespread regional saturation |
The National Weather Service anticipates that flash flood threats will persist through Monday as saturated soils struggle to absorb any additional runoff from the slow-moving Pacific systems.
