|
Home Return to list Winter Weather Advisory 0020 Issued by the Medford Forecast Office
Action: New Issued At: 2025-12-22 15:59:55 983 WWUS46 KMFR 222159 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 159 PM PST Mon Dec 22 2025 ...HIGH IMPACT WINTER STORM FOR SISKIYOU COUNTY... .A high impact winter storm will likely bring two waves of heavy snowfall to Siskiyou County mainly above 4500 feet. The snow level will rise and fall through the event. CAZ080-082>084-230600- /O.UPG.KMFR.WS.A.0007.251223T1200Z-251226T1800Z/ /O.NEW.KMFR.WS.W.0012.251223T1200Z-251226T1800Z/ Western Siskiyou County-South Central Siskiyou County-North Central and Southeast Siskiyou County-Northeast Siskiyou and Northwest Modoc Counties- Including the following locations...Bray and Tennant 159 PM PST Mon Dec 22 2025 ...WINTER STORM WARNING IN EFFECT FROM 4 AM TUESDAY TO 10 AM PST FRIDAY ELEVATIONS ABOVE 4500 FEET IN SISKIYOU COUNTY... * WHAT...Heavy expected above 4500 feet in Siskiyou County. Total snow accumulations 1 to 3 feet, except up to 5 feet in the higher remote terrain near 6000 feet. Winds could gust as high as 60 mph over high and exposed terrain. Snow levels will rise to 7000 feet Tuesday night before falling again Wednesday, then possibly lowering to around 3500 feet Thursday night into early Friday. * WHERE...Elevations above 4500 feet in Siskiyou County. This includes Snowmans Summit on state highway 89, Etna Summit on Sawyers Bar Road and Shasta Ski Park. * WHEN...From 4 AM Tuesday to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday morning and evening commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for snow accumulation probabilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ CAZ085-230600- /O.UPG.KMFR.WS.A.0007.251223T1200Z-251226T1800Z/ /O.NEW.KMFR.WS.W.0012.251224T1200Z-251226T1800Z/ Modoc County- 159 PM PST Mon Dec 22 2025 ...WINTER STORM WARNING IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST FRIDAY ABOVE 5500 FT IN MODOC COUNTY... * WHAT...Heavy snow expected above 5500 ft in Modoc County. Total snow accumulations between 7 and 18 inches. Winds gusting up to 70 mph over high and exposed terrain. * WHERE...Elevations above 5500 feet in Modoc County. This includes Cedar Pass on highway 299. * WHEN...From 4 AM Wednesday to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday morning and evening commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for snow accumulation probabilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ ORZ027-028-230600- /O.NEW.KMFR.WW.Y.0020.251223T1800Z-251224T1800Z/ South Central Oregon Cascades-Siskiyou Mountains and Southern Oregon Cascades- Including the following locations...Crater Lake 159 PM PST Mon Dec 22 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 10 AM PST WEDNESDAY ELEVATIONS ABOVE 5500 FEET IN THE CASCADES AND SISKIYOU MOUNTAINS... * WHAT...Winds gusting as high as 60 mph over high and exposed terrain. Wet snow expected above 5500 feet in the Cascades and Siskiyou Mountains. Total snow accumulations up to 6 inches. Winds combined with light snow will create hazardous conditions. * WHERE...Above 5500 feet in the southern Oregon Cascades and Siskiyou Mountains. This includes Crater Lake and Mt Ashland Ski Park. * WHEN...From 10 AM Tuesday to 10 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions and delays in your commute. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for snow accumulation probabilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Call 511 or visit tripcheck.com for road information. && $$ Smith Action: Continued Issued At: 2025-12-22 22:24:35 275 WWUS46 KMFR 230424 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 824 PM PST Mon Dec 22 2025 ...HIGH IMPACT WINTER WEATHER FOR SISKIYOU COUNTY... .A high impact winter storm will bring strong winds, and heavy snowfall (mainly above 4500 feet), to Siskiyou County. The snow level will begin near 5000 feet early Tuesday, but quickly rise to 7000 feet. Snow levels will fall to around 5000 feet Wednesday then to around 4000 feet Thursday night into Friday. The most significant impacts will be strong south winds both Tuesday afternoon into Wednesday morning and early Thursday morning into Thursday evening, snow over higher passes (including Snowmans Summit) Wednesday evening into Friday, and the potential for lower snow levels to allow snow to affect a larger portion of the Mount Shasta region from Thursday afternoon into Friday. Snow and strong winds will also impact the Crater Lake region Tuesday into Wednesday. CAZ080-082>084-231545- /O.CON.KMFR.WS.W.0012.251223T1200Z-251226T1800Z/ Western Siskiyou County-South Central Siskiyou County-North Central and Southeast Siskiyou County-Northeast Siskiyou and Northwest Modoc Counties- Including the following locations...Tennant and Bray 824 PM PST Mon Dec 22 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TUESDAY TO 10 AM PST FRIDAY ELEVATIONS ABOVE 4500 FEET IN SISKIYOU COUNTY... * WHAT...Heavy snow expected above 4500 feet in Siskiyou County. Total snow accumulations 1 to 3 feet, except up to 5 feet in the higher remote terrain near 6000 feet. Snow levels will rise to 7000 feet Tuesday, fall to around 5000 feet for Wednesday into early Thursday, then lower to around 3500 to 4000 feet for Thursday night into Friday. Accumulating snow is expected on Snowmans Summit beginning Wednesday night or Thursday. South winds will likely gust as high as 60 mph over high and exposed terrain. Winds will be strongest Tuesday afternoon into Wednesday morning, and on Thursday. * WHERE...Elevations above 4500 feet in Siskiyou County. This includes Snowmans Summit on state highway 89, Etna Summit on Sawyers Bar Road and Shasta Ski Park. * WHEN...From 4 AM Tuesday to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday morning and evening commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for snow accumulation probabilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ CAZ085-231545- /O.CON.KMFR.WS.W.0012.251224T1200Z-251226T1800Z/ Modoc County- 824 PM PST Mon Dec 22 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST FRIDAY ABOVE 5500 FT IN MODOC COUNTY... * WHAT...Heavy snow expected above 5500 ft in Modoc County. Total snow accumulations between 7 and 15 inches. Southerly winds gusting up to 70 mph over high and exposed terrain. The heaviest snow is expected Thursday into Friday, and the strongest winds on Wednesday morning and Thursday morning. * WHERE...Elevations above 5500 feet in Modoc County. This includes Cedar Pass on highway 299. * WHEN...From 4 AM Wednesday to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Wednesday morning and evening commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for snow accumulation probabilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ ORZ027-028-231545- /O.CON.KMFR.WW.Y.0020.251223T1800Z-251224T1800Z/ South Central Oregon Cascades-Siskiyou Mountains and Southern Oregon Cascades- Including the following locations...Crater Lake 824 PM PST Mon Dec 22 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO 10 AM PST WEDNESDAY ELEVATIONS ABOVE 5500 FEET IN THE CASCADES AND SISKIYOU MOUNTAINS... * WHAT...Winds gusting as high as 60 mph over high and exposed terrain. Wet snow expected above 5500 feet in the Cascades and Siskiyou Mountains. Total snow accumulations up to 6 inches. Winds combined with light snow will create hazardous conditions. Strongest winds are expected Tuesday afternoon into Wednesday morning. * WHERE...Above 5500 feet in the southern Oregon Cascades and Siskiyou Mountains. This includes Crater Lake and Mt Ashland Ski Park. * WHEN...From 10 AM Tuesday to 10 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions and delays in your commute. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Visit weather.gov/mfr/winter for snow accumulation probabilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Call 511 or visit tripcheck.com for road information. && $$ DW Action: Continued Issued At: 2025-12-23 12:26:19 409 WWUS46 KMFR 231826 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 1026 AM PST Tue Dec 23 2025 CAZ080-082>084-240230- /O.CON.KMFR.WS.W.0012.000000T0000Z-251226T1800Z/ Western Siskiyou County-South Central Siskiyou County-North Central and Southeast Siskiyou County-Northeast Siskiyou and Northwest Modoc Counties- Including the following locations...Bray and Tennant 1026 AM PST Tue Dec 23 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY ELEVATIONS ABOVE 4500 FEET IN SISKIYOU COUNTY... * WHAT...Heavy snow expected above 4500 feet in Siskiyou County. Total snow accumulations 1 to 3 feet, except up to 5 feet in the higher remote terrain near 6000 feet. Accumulating snow is expected on Snowmans Summit beginning Wednesday night or Thursday. South winds will likely gust as high as 60 mph over high and exposed terrain. Winds will be strongest Tuesday afternoon into Wednesday morning, and on Thursday. * WHERE...Elevations above 4500 feet in Siskiyou County. This includes Snowmans Summit on state highway 89, Etna Summit on Sawyers Bar Road and Shasta Ski Park. * WHEN...Until 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...Snow levels will rise to 7000 feet Tuesday, fall to around 5000 feet for Wednesday into early Thursday, then lower to around 3500 to 4000 feet for Thursday night into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ CAZ085-240230- /O.CON.KMFR.WS.W.0012.251224T1200Z-251226T1800Z/ Modoc County- 1026 AM PST Tue Dec 23 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST FRIDAY ABOVE 5500 FT IN MODOC COUNTY... * WHAT...Heavy snow expected above 5500 ft in Modoc County. Total snow accumulations between 7 and 15 inches. South winds gusting up to 70 mph over high and exposed terrain. The heaviest snow is expected Thursday into Friday, and the strongest winds on Wednesday and Thursday mornings. * WHERE...Elevations above 5500 feet in Modoc County. This includes Cedar Pass on highway 299. * WHEN...From 4 AM Wednesday to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Wednesday morning and evening commutes. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ ORZ027-028-240230- /O.CON.KMFR.WW.Y.0020.000000T0000Z-251224T1800Z/ South Central Oregon Cascades-Siskiyou Mountains and Southern Oregon Cascades- Including the following locations...Crater Lake 1026 AM PST Tue Dec 23 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY ELEVATIONS ABOVE 5500 FEET IN THE CASCADES AND SISKIYOU MOUNTAINS... * WHAT...Winds gusting as high as 60 mph over high and exposed terrain. Wet snow expected above 5500 feet in the Cascades and Siskiyou Mountains. Total snow accumulations up to 6 inches. Winds combined with light snow will create hazardous conditions. Strongest winds are expected Tuesday afternoon into Wednesday morning. * WHERE...Above 5500 feet in the southern Oregon Cascades and Siskiyou Mountains. This includes Crater Lake and Mt Ashland Ski Park. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions and delays in your commute. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Call 511 or visit tripcheck.com for road information. && $$ BR-y Action: Cancelled Issued At: 2025-12-23 14:01:51 810 WWUS46 KMFR 232001 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 1201 PM PST Tue Dec 23 2025 CAZ082-241215- /O.CAN.KMFR.WS.W.0012.000000T0000Z-251226T1800Z/ /O.NEW.KMFR.WS.W.0013.251224T0600Z-251226T1800Z/ South Central Siskiyou County- Including the following locations...Mount Shasta, McCloud, and Dunsmuir 1201 PM PST Tue Dec 23 2025 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST FRIDAY... * WHAT...Strong winds and heavy snow expected. Strong winds will first impact the area tonight into early Wednesday with south winds 25 to 35 mph with gusts of 50 to 55 mph. Winds gusting as high as 70 to 80 mph over high and exposed terrain. Winds ease Wednesday morning, then increase again Wednesday night into Thursday, 25 to 30 mph with gusts to 50 mph. Meanwhile, snow levels will remain high through tonight, lowering to 4500 ft early Wednesday morning, and locally down to 3500 ft Wednesday afternoon through Friday morning. Total snow accumulations during this time: 6 to 12 inches above 3500 ft, 1-3 ft above 4500 ft. * WHERE...Strong winds are expected everywhere, strongest in high and exposed terrain. Moderate to heavy snow will impact portions of Interstate 5 north of Dunsmuir, including Mt Shasta City and Black Butte Pass. The heaviest snow amounts are expected above 4500 feet, including Snowman Summit on highway 89 and Shasta Ski Park. * WHEN...From 10 PM this evening to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...The strongest winds are expected tonight into Wednesday morning, then again Wednesday night through Thursday. The heaviest snow is expected late Wednesday night through Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ ORZ027-028-232115- /O.CAN.KMFR.WW.Y.0020.000000T0000Z-251224T1800Z/ South Central Oregon Cascades-Siskiyou Mountains and Southern Oregon Cascades- Including the following locations...Crater Lake 1201 PM PST Tue Dec 23 2025 ...WINTER WEATHER ADVISORY IS CANCELLED... Expected snowfall amounts will remain below advisory criteria, and the higher impact weather element will be strong damaging winds. See NPWMFR for details on these strong winds and expected snow amounts. $$ CAZ080-083-084-241215- /O.CON.KMFR.WS.W.0012.000000T0000Z-251226T1800Z/ Western Siskiyou County-North Central and Southeast Siskiyou County-Northeast Siskiyou and Northwest Modoc Counties- Including the following locations...Bray and Tennant 1201 PM PST Tue Dec 23 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR ELEVATIONS ABOVE 4500 FEET... * WHAT...Strong winds and heavy snow expected. Strong winds will first impact the area tonight into early Wednesday with south winds 30 to 40 mph with gusts of 50 to 60 mph. Winds gusting as high as 70 to 80 mph over high and exposed terrain. Winds ease Wednesday morning, then increase again Wednesday night into Thursday, 30 to 40 mph with gusts of 50 to 60 mph. Meanwhile, snow levels will remain high through tonight (around 6000-7000 ft), lowering to 4500 ft early Wednesday morning. Heavy snow expected above 4500 ft with snow accumulations of 8 to 14 inches, and 1 to 3 feet above 5500 ft. * WHERE...Above 4500 ft in Siskiyou County. This includes Etna Summit on Sawyers Bar Road, Scott Mountain Pass on Highway 3, and portions of Highway 97 south of MacDoel that includes Grass Lake at Mt Hebron. * WHEN...Until 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...The strongest winds are expected tonight into Wednesday morning, then again Wednesday night through Thursday. The heaviest snow is expected late Wednesday night through Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ CAZ085-241215- /O.CON.KMFR.WS.W.0012.251224T1200Z-251226T1800Z/ Modoc County- 1201 PM PST Tue Dec 23 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST FRIDAY ABOVE 5500 FT IN MODOC COUNTY... * WHAT...Strong winds and heavy snow expected. Strong winds will first impact the area tonight into early Wednesday with south winds 30 to 40 mph with gusts of 50 to 60 mph. Winds gusting as high as 70 to 80 mph over high and exposed terrain. Winds ease Wednesday morning, then increase again Wednesday night into Thursday, 30 to 40 mph with gusts of 50 to 60 mph. Meanwhile, snow levels will remain high through tonight (around 6000-7000 ft), lowering to 4500 ft early Wednesday morning. Heavy snow expected above 5500 ft with snow accumulations of 6 to 14 inches. * WHERE...The Warner mountains of Modoc County. This includes Cedar Pass on Highway 395. * WHEN...From 4 AM Wednesday to 10 AM PST Friday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Wednesday morning and evening commutes. Very strong winds could cause extensive tree damage. * ADDITIONAL DETAILS...The strongest winds are expected tonight into Wednesday morning, then again Wednesday night through Thursday. The heaviest snow is expected late Wednesday night through Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information. && $$ BR-y | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||