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Polo moves through Sonora as tropical storm after weakening

Emergency responders in Sonora patrol the streets of Guaymas after Polo made landfall on Tuesday.
Coordinación Estatal de Proteccion Civil
Emergency responders in Sonora patrol the streets of Guaymas after Polo made landfall on Tuesday, Sept. 29, 2026.

Hurricane Polo weakened into a tropical storm as it made its way inland into the Mexican state of Sonora on Tuesday.

Once swirling as a Category 5 hurricane off of Mexico’s west coast, Polo caused flooding and rough surf in coastal areas of Sonora, south of Arizona, after passing over the Baja peninsula and the Gulf of California.

The storm touched down in Sonora with less intensity than forecasted after authorities in the state canceled school and other non-essential work activities as the population braced for possible life-threatening wind and rainfall.

But some areas saw little to no rain as the storm began to dissipate in the afternoon. The National Weather Service warned tropical storm conditions were expected to spread across northwest Mexico through the night.

More Mexico news

Nina Kravinsky is a senior field correspondent covering stories about Sonora and the border from the Hermosillo, Mexico, bureau of KJZZ’s Fronteras Desk.