Overview

• Priscilla fell from near‑major strength to a tropical storm by Wednesday while tracking parallel to Baja California Sur, where a tropical storm watch remains in effect from Cabo San Lucas to Cabo San Lázaro.
• Large swells are producing life‑threatening surf and rip currents along Mexico’s Pacific coast and southern Baja, as local officials cancel classes and open shelters in Los Cabos and La Paz.
• Forecasters expect a predecessor rain event to draw Priscilla’s moisture into the Desert Southwest, with Flood Watches and First Alert actions spanning parts of Southern California, Arizona, Nevada, Utah, Colorado and New Mexico from Thursday into the weekend.
• Heaviest rainfall is forecast Friday into Saturday, especially over higher terrain from central Arizona to the Four Corners, with multi‑inch totals possible and a slight risk for excessive rainfall highlighted by the Weather Prediction Center.
• Guidance from the NHC shows Priscilla weakening to a post‑tropical system near Baja by Friday, with forecasters noting uncertainty in exact rainfall placement even as multi‑day precipitation persists into the weekend.