Date of Incident: August 10, 2025
Location: Siskiyou County, Northern California (notably Mount Shasta, Weed, and I-5 corridors)
Duration: Approximately 12:30 PM to 9:35 PM PDT (9 hours)
Affected Services: AT&T, Verizon, and Snowcrest (internet and VOIP landlines)
Sources: Siskiyou County Sheriff’s Office, local Facebook groups (e.g., Siskiyou Grapevine, Mt Shasta NW), X posts, Downdetector, community reports
Summary
On August 10, 2025, Siskiyou County experienced a significant outage affecting cell phone, internet, and landline services for approximately nine hours. The disruption impacted major carriers AT&T and Verizon, as well as local provider Snowcrest, leaving residents in areas like Mount Shasta and Weed without reliable communication. The Siskiyou County Sheriff’s Office issued a public notice confirming the outage, noting that 911 emergency services remained operational but directing non-emergency reports to an online system, which was inaccessible for many due to the internet outage. [Ref: Sheriff’s Notice]
