
ALT A Slight Risk (yellow, at least 15% chance) covers much of Arizona, including Phoenix, extending into southern Utah and western New Mexico. A separate Slight Risk area affects portions of coastal Southern California. A broader Marginal Risk (green, at least 5% chance) extends across portions of California, Nevada, Arizona, Utah, and New Mexico.

ALT Emergency Declarations A presidentially approved emergency declaration authorizes FEMA to provide immediate assistance to support state, territory and Tribal Nation governments as they save lives, protect property and infrastructure, and respond to immediate needs. Once an emergency declaration is approved, FEMA works with states and tribes to provide requested emergency assistance and assess damage. Damage assessments may inform a request for a major disaster declaration.

ALT This graphic displays a extreme wind warning plotted on a map. The warning is in effect until 5:30 AM ChST. The warning includes Inarajan GU. The threats associated with this warning are a for extremely dangerous hurricane winds. Treat these imminent extreme winds as if a tornado was approaching and move immediately to an interior room or shelter NOW!. There are people in the warning along with 6 schools and 0 hospitals.

ALT Weather graphic titled "Champi Now a DANGEROUS Category 4 Typhoon Approaching Guam," issued 8:20 PM ChST, Sat, 17 Oct 2026. Warning of possible intensification to Super Typhoon (~150 MPH) during closest approach early Sunday morning. Left panel shows color-coded alerts: Typhoon Warning for Guam - Rota; Tropical Storm Warning for Saipan - Tinian; Flash Flood Warning for Guam; Flood Watch, Coastal Flood Warning, and High Surf Warning for Guam - Rota - Saipan - Tinian. NWS Public Advisory #12 details Tropical Storm Champi (29W) located at 12.6N 146.7E with max winds of 130 MPH moving West at 15 MPH, located ~140 miles ESE of Guam, ~145 miles SE of Rota, ~180 miles SSE of Tinian, and ~185 miles SSE of Saipan. Main map displays storm cone moving northwest toward Guam and the Mariana Islands through Tuesday. Logos for NOAA and the National Weather Service appear alongside social media contact info @NWSGuam and www.weather.gov/gum.



























