Alert archive / California / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS Medford, OR
NWS Medford, OR issued this winter storm warning at Jan 2, 2021, 1:49 PM PST for Siskiyou County, California. It took effect at Jan 4, 2021, 4:00 AM PST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 2, 2021, 1:49 PM PST (21:49 UTC)
- In effect from
- Jan 4, 2021, 4:00 AM PST
- Expired
- Jan 4, 2021, 9:55 PM PST
- In force
- 18 hr
- Issued by
- NWS Medford, OR
County Siskiyou County, CA
The radar
The Medford radar (KMAX), 56 km from the middle of the area, began a volume at 21:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 9.8 hours before the alert went out and 89 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 742 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 299 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
076 WWUS46 KMFR 022149 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 149 PM PST Sat Jan 2 2021 CAZ080-082-083-031600- /O.UPG.KMFR.WS.A.0001.210104T1200Z-210105T1200Z/ /O.NEW.KMFR.WS.W.0001.210104T1200Z-210105T1200Z/ Western Siskiyou County-South Central Siskiyou County- North Central and Southeast Siskiyou County- 149 PM PST Sat Jan 2 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 AM MONDAY TO 4 AM PST TUESDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected above 5000 feet. Total snow accumulations of 8 to 15 inches. Winds gusting as high as 50 mph except near the highest elevations which will see gusts to 70 mph. * WHERE...Higher terrain of Siskiyou County, including portions of Sawyers Bar Road, Highway 3, Mt. Shasta Ski Park, and other rural locations. Highway 97, although included in the warning, will see amounts closer to 3 to 6 inches of snow. * WHEN...From 4 AM Monday to 4 AM PST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact travel. Very strong winds could cause tree damage. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ027-031600- /O.NEW.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ /O.EXT.KMFR.WW.Y.0002.210103T0000Z-210103T2100Z/ South Central Oregon Cascades- Including the city of Crater Lake 149 PM PST Sat Jan 2 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 PM PST SUNDAY ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM MONDAY TO 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...For the first Winter Weather Advisory, snow expected above 5000 feet. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 60 mph in areas of exposed higher terrain. For the second Winter Weather Advisory, moderate snow expected above 4000 feet. Total snow accumulations of 5 to 10 inches. Winds gusting as high as 40 mph. * WHERE...Both advisories are for the southern Oregon Cascades from Crater Lake to areas of Willamette Pass Ski Resort, including Diamond Lake. The advisories also include portions of Highway 62, 138, and 230 * WHEN...The first Winter Weather Advisory is from 4 PM this afternoon to 1 PM PST Sunday. The second Winter Weather Advisory is from 7 AM Monday to 1 AM PST Tuesday. * IMPACTS...Travel could be very difficult to impossible. Strong winds will cause reduced visibilities and tree damage. * ADDITIONAL DETAILS...These advisories highlight the highest snowfall rates during a 3 day-long snow event. Thus, expect light snow before and after the advisory time frames. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ028-031600- /O.NEW.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ Siskiyou Mountains and Southern Oregon Cascades- 149 PM PST Sat Jan 2 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM MONDAY TO 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 5 to 9 inches. Winds gusting as high as 50 mph except for Mt. Ashland which will see gusts as high as 65 mph. * WHERE...Portions of the Southern Oregon Cascades and Siskiyous including Highway 140 at Lake of the Woods Pass and the Mt. Ashland Ski area as well as the road to Mt. Ashland. * WHEN...From 7 AM Monday to 1 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...The heaviest snow should occur between 10 AM Monday through 10 PM Monday. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com or http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
5 follow-up statements
169 WWUS46 KMFR 031227 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 427 AM PST Sun Jan 3 2021 CAZ080-082-083-032230- /O.CON.KMFR.WS.W.0001.210104T1200Z-210105T1200Z/ Western Siskiyou County-South Central Siskiyou County- North Central and Southeast Siskiyou County- 427 AM PST Sun Jan 3 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM MONDAY TO 4 AM PST TUESDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected above 5000 feet. Total snow accumulations of 10 to 20 inches, except 3 to 6 inches along higher elevation portions of Highway 97. Winds gusting as high as 50 mph except near the highest elevations which will see gusts to 70 mph. * WHERE...Higher terrain of Siskiyou County, including portions of Sawyers Bar Road, Highway 3, Grass Lake, Mt. Shasta Ski Park, and other rural locations. * WHEN...From 4 AM Monday to 4 AM PST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact travel. Very strong winds could cause tree damage. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ029-030-032230- /O.EXB.KMFR.WW.Y.0003.210104T2100Z-210105T0600Z/ Klamath Basin- Northern and Eastern Klamath County and Western Lake County- Including the city of Chemult 427 AM PST Sun Jan 3 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM TO 10 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph Monday afternoon in exposed areas. * WHERE...Higher elevations of Highway 97 including near Modoc Point, Spring Creek Grade, Sand Creek, and Chemult. * WHEN...From 1 PM to 10 PM PST Monday. * IMPACTS...Plan on slippery road conditions. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ027-032230- /O.CON.KMFR.WW.Y.0002.000000T0000Z-210103T2100Z/ /O.CON.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ South Central Oregon Cascades- Including the cities of Crater Lake and Diamond Lake 427 AM PST Sun Jan 3 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON ABOVE 5000 FEET... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM MONDAY TO 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...For the first Winter Weather Advisory, snow expected above 5000 feet. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 60 mph in areas of exposed higher terrain. For the second Winter Weather Advisory, moderate snow expected above 4000 feet. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 40 mph in exposed areas. * WHERE...Both advisories are for the southern Oregon Cascades from Crater Lake to areas of Willamette Pass Ski Resort, including Diamond Lake. The advisories also include portions of Highway 62, 138, and 230. * WHEN...The first Winter Weather Advisory is until 1 PM PST this afternoon. The second Winter Weather Advisory is from 7 AM Monday to 1 AM PST Tuesday. * IMPACTS...Travel could become very difficult. Strong winds will cause reduced visibilities and tree damage. * ADDITIONAL DETAILS...These advisories highlight the periods of heaviest snowfall. Thus, expect light snow between the two advisories. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ028-032230- /O.CON.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ Siskiyou Mountains and Southern Oregon Cascades- 427 AM PST Sun Jan 3 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM MONDAY TO 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 50 mph except for Mt. Ashland which will see gusts as high as 65 mph. * WHERE...Portions of the Southern Oregon Cascades and Siskiyous including Highway 140 at Lake of the Woods Pass and the Mt. Ashland Ski area as well as the road to Mt. Ashland. A period of accumulating snowfall is possible at Siskiyou Summit on Interstate 5 between late Monday morning and Monday night. * WHEN...From 7 AM Monday to 1 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...The heaviest snow should occur from 10 AM Monday through 10 PM Monday. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com or http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
214 WWUS46 KMFR 032047 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 1247 PM PST Sun Jan 3 2021 ORZ027-041430- /O.EXP.KMFR.WW.Y.0002.000000T0000Z-210103T2100Z/ /O.CON.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ South Central Oregon Cascades- Including the cities of Crater Lake and Diamond Lake 1247 PM PST Sun Jan 3 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM MONDAY TO 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 3 to 11 inches. Winds gusting as high as 60 mph. * WHERE...The southern Oregon Cascades from Crater Lake to areas of Willamette Pass Ski Resort, including Diamond Lake. The advisories also include portions of Highway 62, 138, and 230. * WHEN...7 AM Monday to 1 AM PST Tuesday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. * ADDITIONAL DETAILS...The ongoing winter weather advisory at 5000 feet will expire at 1 PM today. The next winter weather advisory starts at 7 AM Monday. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ CAZ080-082-083-041430- /O.CON.KMFR.WS.W.0001.210104T1200Z-210105T1200Z/ Western Siskiyou County-South Central Siskiyou County- North Central and Southeast Siskiyou County- 1247 PM PST Sun Jan 3 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM MONDAY TO 4 AM PST TUESDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected above 5000 feet. Total snow accumulations of 10 to 20 inches, except 3 to 6 inches along higher elevation portions of Highway 97. Winds gusting as high as 50 mph except near the highest elevations which will see gusts to 70 mph. * WHERE...Higher terrain of Siskiyou County, including portions of Sawyers Bar Road, Highway 3, Grass Lake, Mt. Shasta Ski Park, and other rural locations. * WHEN...From 4 AM Monday to 4 AM PST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact travel. Very strong winds could cause tree damage. * ADDITIONAL DETAILS...Snow could start along the higher elevations of Highway 97 as early as 10 AM Monday. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ029-030-041430- /O.CON.KMFR.WW.Y.0003.210104T2100Z-210105T0600Z/ Klamath Basin- Northern and Eastern Klamath County and Western Lake County- Including the city of Chemult 1247 PM PST Sun Jan 3 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM TO 10 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph Monday afternoon in exposed areas. * WHERE...Higher elevations of Highway 97 including near Modoc Point, Spring Creek Grade, Sand Creek, and Chemult. * WHEN...From 1 PM to 10 PM PST Monday. * IMPACTS...Plan on slippery road conditions. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ028-041430- /O.CON.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ Siskiyou Mountains and Southern Oregon Cascades- 1247 PM PST Sun Jan 3 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM MONDAY TO 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 50 mph except for Mt. Ashland which will see gusts as high as 65 mph. * WHERE...Portions of the Southern Oregon Cascades and Siskiyous including Highway 140 at Lake of the Woods Pass and the Mt. Ashland Ski area as well as the road to Mt. Ashland. A period of accumulating snowfall is possible at Siskiyou Summit on Interstate 5 between late Monday morning and Monday night. * WHEN...From 7 AM Monday to 1 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...The heaviest snow should occur from 10 AM Monday through 10 PM Monday. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com or http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
440 WWUS46 KMFR 041355 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 555 AM PST Mon Jan 4 2021 CAZ080-082-083-042315- /O.CON.KMFR.WS.W.0001.000000T0000Z-210105T1200Z/ Western Siskiyou County-South Central Siskiyou County- North Central and Southeast Siskiyou County- 555 AM PST Mon Jan 4 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST TUESDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected above 5000 feet. Total snow accumulations of 10 to 20 inches, except 3 to 6 inches along higher elevation portions of Highway 97 and potentially down to Snowmans Summit on Highway 89. Winds gusting as high as 50 mph except near the highest elevations which will see gusts to 70 mph. * WHERE...Higher terrain of Siskiyou County, including portions of Sawyers Bar Road, Highway 3, Grass Lake, Mt. Shasta Ski Park, and other rural locations. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact travel. Very strong winds could cause tree damage. * ADDITIONAL DETAILS...Snow could start along the higher elevations of Highway 97 as early as 10 AM this morning. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ029-030-042315- /O.EXT.KMFR.WW.Y.0003.210104T1900Z-210105T0600Z/ Klamath Basin- Northern and Eastern Klamath County and Western Lake County- Including the city of Chemult 555 AM PST Mon Jan 4 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO 10 PM PST THIS EVENING... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 45 mph this afternoon in exposed areas. * WHERE...Higher elevations of Highway 97 including near Modoc Point, Spring Creek Grade, Sand Creek, and Chemult. * WHEN...From 11 AM this morning to 10 PM PST this evening. * IMPACTS...Plan on slippery road conditions. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ027-028-042315- /O.CON.KMFR.WW.Y.0003.210104T1500Z-210105T0900Z/ South Central Oregon Cascades- Siskiyou Mountains and Southern Oregon Cascades- Including the cities of Crater Lake and Diamond Lake 555 AM PST Mon Jan 4 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 6 to 12 inches. A quick 1 to 3 inches expected on Siskiyou Summit on Interstate 5. Winds gusting as high as 60 mph in exposed areas. * WHERE...The southern Oregon Cascades from Crater Lake to areas of Willamette Pass Ski Resort, including Diamond Lake, portions of Highways 62, 138, and 230. Also portions of the Southern Oregon Cascades and Siskiyous including Highway 140 at Lake of the Woods Pass and Mt. Ashland ski road. A shorter period of accumulating snow is expected at Siskiyou Summit on Interstate 5. * WHEN...Until 1 AM PST Tuesday except 12 pm through 5 pm this afternoon at Siskiyou Summit. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
606 WWUS46 KMFR 042138 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 138 PM PST Mon Jan 4 2021 CAZ080-082-083-050615- /O.CON.KMFR.WS.W.0001.000000T0000Z-210105T1200Z/ Western Siskiyou County-South Central Siskiyou County- North Central and Southeast Siskiyou County- 138 PM PST Mon Jan 4 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST TUESDAY ABOVE 5000 FEET... * WHAT...Heavy snow above 5000 feet expected. Additional snow accumulations of 2 to 6 inches. Highway 97 near Grass Lake could see an additional 1 to 3 inches of snow. Winds gusting as high as 55 mph. * WHERE...Higher terrain of Siskiyou County, including portions of Sawyers Bar Road, Highway 3, Grass Lake, Mt. Shasta Ski Park, and other rural locations. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact travel, including reduced visibility. Strong winds could cause tree damage. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ029-030-050600- /O.CON.KMFR.WW.Y.0003.000000T0000Z-210105T0600Z/ Klamath Basin- Northern and Eastern Klamath County and Western Lake County- Including the city of Chemult 138 PM PST Mon Jan 4 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Snow expected. Additional snow accumulations of up to 1 to 3 inches. Winds gusting as high as 50 mph. * WHERE...Higher elevations of Highway 97 including near Modoc Point, Spring Creek Grade, Sand Creek, and Chemult. * WHEN...From 11 AM this morning to 10 PM PST this evening. * IMPACTS...Plan on slippery road conditions. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ027-028-050615- /O.CON.KMFR.WW.Y.0003.000000T0000Z-210105T0900Z/ South Central Oregon Cascades- Siskiyou Mountains and Southern Oregon Cascades- Including the cities of Crater Lake and Diamond Lake 138 PM PST Mon Jan 4 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST TUESDAY ABOVE 4000 FEET... * WHAT...Snow above 4000 feet. Additional snow accumulations of 2 to 7 inches. Winds gusting as high as 60 mph. * WHERE...The southern Oregon Cascades from Crater Lake to areas of Willamette Pass Ski Resort, including Diamond Lake, portions of Highways 62, 66, 138, and 230. Also portions of the Southern Oregon Cascades and Siskiyous including Highway 140 at Lake of the Woods Pass, Highway 66 and Dead Indian Memorial Road, and Mt. Ashland ski road. A shorter period of accumulating snow is expected at Siskiyou Summit on Interstate 5. * WHEN...Until 1 AM PST Tuesday except 12 pm through 5 pm this afternoon at Siskiyou Summit. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
099 WWUS46 KMFR 050555 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 955 PM PST Mon Jan 4 2021 CAZ080-082-083-050700- /O.CAN.KMFR.WS.W.0001.000000T0000Z-210105T1200Z/ Western Siskiyou County-South Central Siskiyou County- North Central and Southeast Siskiyou County- 955 PM PST Mon Jan 4 2021 ...WINTER STORM WARNING IS CANCELLED... Snow showers have diminished. $$ ORZ029-030-050700- /O.CAN.KMFR.WW.Y.0003.000000T0000Z-210105T0600Z/ Klamath Basin- Northern and Eastern Klamath County and Western Lake County- 955 PM PST Mon Jan 4 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow showers have diminished. $$ ORZ027-028-050700- /O.CAN.KMFR.WW.Y.0003.000000T0000Z-210105T0900Z/ South Central Oregon Cascades- Siskiyou Mountains and Southern Oregon Cascades- 955 PM PST Mon Jan 4 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow showers have diminished. $$ Visit us at https://www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 2, 3:00 AM PST | Winter Storm Watch | MFR | Siskiyou | 11 hr |
Nearby
Winter Storm Warnings in California, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.