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weather NWS severe Yosemite NP outside of the valley; San Joaquin River Canyon; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP November 12, 2026 at 5:31 PM

Winter Storm Warning

* WHAT...Heavy snow expected. Widespread Moderate Impacts with total snow accumulations up to 18 inches. Winds gusting as high as 50 mph.

* WHERE...Sierra Nevada above 6,000 feet.

* WHEN...From 10 AM Friday to 4 AM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. The hazardous conditions will impact the Friday evening and Monday morning commutes. Gusty winds could bring down tree branches. Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Winter weather in Yosemite NP outside of the valley; San Joaquin River Canyon; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP makes roads dangerous, increases the risk of power loss, and can cause cold-related injury during outages. Stranded vehicles are a common hazard.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Expect a high chance of travel disruptions, elevated power-outage risk, and heating stress during any extended loss of service.

Recommended steps: avoid non-essential travel; keep heat sources clear and ventilated; have blankets and a way to charge a phone; check on family and neighbors.

Alert USA is tracking this winter storm and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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