Winter Storm Warning Issued for Siskiyou County; Heavy Snow and Travel Disruptions Expected
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Winter Storm Warning is in effect for Siskiyou County from Sunday morning through Wednesday, with heavy snow accumulations and wind gusts up to 40 mph expected to make travel difficult.
Read this weather record in 30 seconds
- Record type
- Winter Storm Warning
- Affected area
- Northern California
- Issued
- April 6, 2026
- Issuing authority
- NWS Medford
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Northern California.
Alert Details
The National Weather Service in Medford, OR, has issued a Winter Storm Warning for portions of Siskiyou County. The warning is effective from 10:00 AM PST Sunday, February 15, through 4:00 AM PST Wednesday, February 18. This alert indicates that severe winter weather conditions are likely.
Affected Areas
The warning covers South Central, North Central, and Southeast Siskiyou County. Impacted locations include:
- Communities: Mt Shasta City, Dunsmuir, McCloud, and Tennant.
- Roadways: Interstate 5 south of Weed, Highway 97, Highway 89, and Mt Shasta Ski Park Road.
- Mountain Passes: Black Butte Summit, Snowman Summit, Dead Horse Summit, and Grass Lake Summit.
What You Should Do
Residents and travelers are advised to prepare for hazardous conditions. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest road information, call 511 or visit quickmap.dot.ca.gov.
Expected Conditions
- Snow Accumulations: Heavy snow is expected above 5,000 feet through Monday morning with 8 to 12 inches of accumulation. Following a brief lull Monday afternoon, additional accumulations of 6 to 12 inches are expected, with totals of 1 to 2 feet possible above 5,000 feet.
- Snow Levels: Levels will begin at 5,000 feet on Sunday, lowering to 4,500 feet Sunday night and 4,000 feet on Monday. By Tuesday morning, snow levels are expected to drop to approximately 2,000 feet.
- Wind: Wind gusts may reach as high as 40 mph over high and exposed terrain.
- Impacts: Travel may become very difficult to impossible. The hazardous conditions are expected to impact both the Monday morning and evening commutes.
Timeline
- Warning Starts: Sunday, February 15 at 10:00 AM PST.
- Initial Heavy Snow: Through Monday morning.
- Precipitation Lull: Monday afternoon.
- Lowering Snow Levels: Monday night through Tuesday night.
- Warning Ends: Wednesday, February 18 at 4:00 AM PST.
Original source: NOAA Official Notice ↗
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