Alert archive / California / Winter Storm Warnings in 2018
Winter Storm Warning 10, NWS Medford, OR
NWS Medford, OR issued this winter storm warning at Mar 1, 2018, 10:59 PM PST for Siskiyou County, California. It took effect at Mar 2, 2018, 10:00 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
- Mar 1, 2018, 10:59 PM PST (06:59 UTC)
- In effect from
- Mar 2, 2018, 10:00 AM PST
- Expired
- Mar 3, 2018, 4:00 AM 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 07:01 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 00:00Z, 7.0 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
- 771 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
238 WWUS46 KMFR 020659 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 1059 PM PST Thu Mar 1 2018 CAZ082-021500- /O.CAN.KMFR.WS.W.0009.000000T0000Z-180303T1500Z/ /O.NEW.KMFR.WS.W.0010.180302T1800Z-180303T1200Z/ /O.EXB.KMFR.WW.Y.0013.180302T1800Z-180303T1200Z/ South Central Siskiyou County- Including the cities of Mount Shasta, Dunsmuir, and Mccloud 1059 PM PST Thu Mar 1 2018 ...WINTER STORM WARNING IN EFFECT FROM 10 AM FRIDAY TO 4 AM PST SATURDAY... ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 4 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Total snow accumulations of 6 to 10 inches, with localized amounts up to 14 inches, in the warning area. Total snow accumulations of 4 to 8 inches in the advisory area. * WHERE...Warning area includes Snowman's Summit on Highway 89 and Everitt Memorial Highway near Mount Shasta City. Advisory area includes Dunsmuir, Mount Shasta City, and Black Butte Summit on Interstate 5. * WHEN...10 AM Friday to 4 AM PST Saturday. The greatest impacts to roadways are expected late Friday afternoon into Friday evening. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute on Friday. Be prepared for significant reductions in visibility at times. * 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. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ029-030-020800- /O.CAN.KMFR.WS.W.0009.000000T0000Z-180302T1200Z/ /O.CAN.KMFR.WW.Y.0013.000000T0000Z-180302T1200Z/ Klamath Basin- Northern and Eastern Klamath County and Western Lake County- 1059 PM PST Thu Mar 1 2018 ...WINTER STORM WARNING IS CANCELLED... ...WINTER WEATHER ADVISORY IS CANCELLED... Snow has diminished across the area. $$ CAZ083-020800- /O.CAN.KMFR.WS.W.0009.000000T0000Z-180303T1500Z/ /O.CAN.KMFR.WW.Y.0013.000000T0000Z-180303T1500Z/ North Central and Southeast Siskiyou County- 1059 PM PST Thu Mar 1 2018 ...WINTER STORM WARNING IS CANCELLED... ...WINTER WEATHER ADVISORY IS CANCELLED... Snow has diminished across the area. $$ CAZ081-021500- /O.CAN.KMFR.WW.Y.0013.000000T0000Z-180303T1500Z/ /O.NEW.KMFR.WW.Y.0014.180302T1800Z-180303T1200Z/ Central Siskiyou County- Including the city of Weed 1059 PM PST Thu Mar 1 2018 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 4 AM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of up to 2 inches, with localized amounts up to 4 inches. Gusty winds 20 to 30 mph with gusts to 50 mph are expected, primarily before the snowfall. * WHERE...Central Siskiyou County to include Weed along Interstate 5. * WHEN...From 10 AM Friday to 4 AM PST Saturday. The greatest snow impacts to roadways are expected late Friday afternoon and Friday evening. * ADDITIONAL DETAILS...Plan on slippery road conditions, including during the evening commute on Friday. Tree branches could fall. Be prepared for reduced visibilities at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ021-022-027-028-020800- /O.CAN.KMFR.WW.Y.0013.000000T0000Z-180303T1500Z/ South Central Oregon Coast-Curry County Coast- South Central Oregon Cascades- Siskiyou Mountains and Southern Oregon Cascades- 1059 PM PST Thu Mar 1 2018 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow has diminished. $$ CAZ084-020800- /O.CAN.KMFR.WW.Y.0013.000000T0000Z-180302T1200Z/ Northeast Siskiyou and Northwest Modoc Counties- 1059 PM PST Thu Mar 1 2018 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow has diminished. $$ CAZ080-021500- /O.EXT.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.EXT.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Western Siskiyou County- Including the cities of Etna, Fort Jones, and Happy Camp 1059 PM PST Thu Mar 1 2018 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Additional snow accumulations of 6 to 12 inches, with localized amounts up to 18 inches, in the warning area. Additional snow accumulations of 2 to 4 inches in the advisory area. * WHERE...Warning area includes Etna Summit on Sawyers Bar Road and other areas mostly above 4000 feet. Advisory areas include Fort Jones, Etna and most other locations along Highway 3, and Seiad Valley and Happy Camp and most areas along Highway 96. * WHEN...Until 10 AM PST Saturday. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute on Friday. Be prepared for significant reductions in visibility at times. * 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. && $$ ORZ024-021500- /O.EXT.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.EXT.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Eastern Curry County and Josephine County- Including the cities of Grants Pass and Cave Junction 1059 PM PST Thu Mar 1 2018 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Additional snow accumulations of 6 to 12 inches, with localized amounts up to 2 feet, in the warning area. Additional snow accumulations of 1 to 4 inches in the advisory area. * WHERE...Warning area includes areas along Highway 199 from Hayes Hill southward to Obrien and the California border and the Kalmiopsis Wilderness. Advisory area includes lower elevation areas outside of the Illinois Valley (and Cave Junction in the Illinois Valley) to include Williams and Grants Pass. Advisory also includes Sexton Pass along Interstate 5. * WHEN...Until 10 AM PST Saturday. Snowmelt on roadways is more likely during the daytime due to the late winter sun angle. Snow impacts are most likely Friday morning and Friday night into Saturday morning. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the morning commute on Friday. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ CAZ085-021200- /O.CON.KMFR.WS.W.0009.000000T0000Z-180302T1200Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180302T1200Z/ Modoc County- Including the cities of Alturas, Canby, and Likely 1059 PM PST Thu Mar 1 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY... * WHAT...Moderate to heavy snow and blowing snow expected. Additional snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, in the warning area. Additional snow accumulations of up to 2 inches in the advisory area. * WHERE...Warning area includes Adin and Cedar Mountain Pass on Highway 299. Advisory area includes Alturas and Likely. * WHEN...For the Winter Storm Warning, until 4 AM PST Friday. For the Winter Weather Advisory, until 4 AM PST Friday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * 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 occurring and poses a threat to life and property. Take protective action now. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ023-025-026-021500- /O.EXT.KMFR.WW.Y.0013.000000T0000Z-180302T1700Z/ Central Douglas County-Eastern Douglas County Foothills- Jackson County- Including the cities of Drain, Canyonville, Glendale, Steamboat, Toketee Falls, Medford, and Ashland 1059 PM PST Thu Mar 1 2018 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM PST FRIDAY... * WHAT...Some snow and slippery roadways are expected due to recent snow and freezing temperatures. Additional snow accumulations of up to 2 inches. * WHERE...Central Douglas County, Eastern Douglas County Foothills and Jackson County to include Medford, Ashland, Jacksonville, Butte Falls, Toketee Falls, Sexton Pass on Interstate 5, Camas Mountain on Highway 42. Best chance for snow showers overnight and in the morning is along and west of Interstate 5. * WHEN...Until 9 AM PST Friday. * ADDITIONAL DETAILS...Plan on slippery road conditions, including during the morning commute on Friday. Be prepared for reduced visibilities at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See https://www.tripcheck.com for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ ORZ031-021200- /O.CON.KMFR.WW.Y.0013.000000T0000Z-180302T1200Z/ Central and Eastern Lake County- Including the cities of Adel, Lakeview, and Valley Falls 1059 PM PST Thu Mar 1 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY... * WHAT...Snow expected. Additional snow accumulations of up to two inches, with localized amounts up to 4 inches. * WHERE...Central and Eastern Lake County to include Lakeview. * WHEN...Until 4 AM PST Friday. * ADDITIONAL DETAILS...Plan on slippery road conditions. Tree branches could fall. Be prepared for reduced visibilities at times. * 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. && $$ Visit us at https://www.weather.gov/Medford
5 follow-up statements
922 WWUS46 KMFR 021203 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 403 AM PST Fri Mar 2 2018 CAZ085-021315- /O.EXP.KMFR.WS.W.0009.000000T0000Z-180302T1200Z/ /O.EXP.KMFR.WW.Y.0013.000000T0000Z-180302T1200Z/ Modoc County- Including the cities of Alturas, Canby, and Likely 403 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... Showers will continue to decrease in coverage and intensity this morning. $$ ORZ031-021315- /O.EXP.KMFR.WW.Y.0013.000000T0000Z-180302T1200Z/ Central and Eastern Lake County- Including the cities of Adel, Lakeview, and Valley Falls 403 AM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... Showers will continue to decrease in coverage and intensity this morning. $$ CAZ080-022015- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Western Siskiyou County- Including the cities of Etna, Fort Jones, and Happy Camp 403 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Additional snow accumulations of 6 to 12 inches, with localized amounts up to 18 inches, in the warning area. Additional snow accumulations of 1 to 4 inches in the advisory area. * WHERE...Warning area includes Etna Summit on Sawyers Bar Road and other areas mostly above 4000 feet. Advisory areas include Fort Jones, Etna and most other locations along Highway 3, and Seiad Valley and Happy Camp and most areas along Highway 96. * WHEN...Until 10 AM PST Saturday. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute on Friday. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ024-022015- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Eastern Curry County and Josephine County- Including the cities of Grants Pass and Cave Junction 403 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Additional snow accumulations of 6 to 12 inches, with localized amounts up to 2 feet, in the warning area. Additional snow accumulations of 1 to 4 inches in the advisory area. Winds may be gusty with gusts of 30 to 40 mph at times in showers today. * WHERE...Warning area includes areas along Highway 199 from Hayes Hill southward to Obrien and the California border and the Kalmiopsis Wilderness. Advisory area includes lower elevation areas outside of the Illinois Valley (and Cave Junction in the Illinois Valley) to include Williams and Grants Pass. Advisory also includes Sexton Pass along Interstate 5. * WHEN...Until 10 AM PST Saturday. Snowmelt on roadways is more likely during the daytime due to the late winter sun angle. Snow impacts are most likely this morning and tonight into Saturday morning. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the morning commute on Friday. Be prepared for significant reductions in visibility at times. * 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. && $$ CAZ082-022015- /O.CON.KMFR.WS.W.0010.180302T1800Z-180303T1200Z/ /O.CON.KMFR.WW.Y.0013.180302T1800Z-180303T1200Z/ South Central Siskiyou County- Including the cities of Mount Shasta, Dunsmuir, and Mccloud 403 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Total snow accumulations of 6 to 10 inches, with localized amounts up to 14 inches, in the warning area. Total snow accumulations of 4 to 8 inches in the advisory area. * WHERE...Warning area includes Snowman's Summit on Highway 89 and Everitt Memorial Highway near Mount Shasta City. Advisory area includes Dunsmuir, Mount Shasta City, and Black Butte Summit on Interstate 5. * WHEN...10 AM today to 4 AM PST Saturday. The greatest impacts to roadways are expected late this afternoon into tonight. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute on Friday. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ023-025-026-021700- /O.CON.KMFR.WW.Y.0013.000000T0000Z-180302T1700Z/ Central Douglas County-Eastern Douglas County Foothills- Jackson County- Including the cities of Drain, Canyonville, Glendale, Steamboat, Toketee Falls, Medford, and Ashland 403 AM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Some snow and slippery roadways are expected due to recent snow and freezing temperatures. Additional snow accumulations of up to 2 inches. * WHERE...Central Douglas County, Eastern Douglas County Foothills and Jackson County to include Medford, Ashland, Jacksonville, Butte Falls, Toketee Falls, Sexton Pass on Interstate 5, Camas Mountain on Highway 42. Best chance for snow showers will be along and west of Interstate 5 this morning. * WHEN...Until 9 AM PST this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions, including during the morning commute today. Be prepared for reduced visibilities at times in showers. * 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. && $$ CAZ081-022015- /O.CON.KMFR.WW.Y.0014.180302T1800Z-180303T1200Z/ Central Siskiyou County- Including the city of Weed 403 AM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of up to 2 inches, with localized amounts up to 4 inches. Gusty winds 20 to 30 mph with gusts to 50 mph are expected, primarily before the snowfall. * WHERE...Central Siskiyou County to include Weed along Interstate 5. * WHEN...From 10 AM today to 4 AM PST Saturday. The greatest snow impacts to roadways are expected late this afternoon into tonight. * ADDITIONAL DETAILS...Plan on slippery road conditions, including during the evening commute on Friday. Tree branches could fall. Be prepared for reduced visibilities at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
121 WWUS46 KMFR 021722 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 922 AM PST Fri Mar 2 2018 ORZ023-030000- /O.EXP.KMFR.WW.Y.0013.000000T0000Z-180302T1700Z/ /O.EXB.KMFR.WW.Y.0014.180302T1722Z-180303T0000Z/ Central Douglas County- 922 AM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Heavy snow in showers is causing slippery snow covered roads and poor visibility. Additional snow accumulations of up to 3 inches expected. * WHERE... Western Douglas County, above 1000 feet, Hwy 42 at Camas Mountain. * WHEN...Until 4 PM PST this afternoon. * ADDITIONAL DETAILS...Travel will be very difficult over Camas Mountain. * 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. && $$ ORZ025-026-021830- /O.EXP.KMFR.WW.Y.0013.000000T0000Z-180302T1700Z/ Eastern Douglas County Foothills-Jackson County- 922 AM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY HAS EXPIRED... Showers have decreased in intensity and coverage, though slippery roads will continue in some areas. $$ CAZ080-030130- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Western Siskiyou County- Including the cities of Etna, Fort Jones, and Happy Camp 922 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Heavy snow. Snow. Additional snow accumulations of 5 to 8 inches, with localized amounts up to 20 inches, in the warning area are expected. Additional snow accumulations of 1 to 4 inches in the advisory area are expected. * WHERE...Warning area includes Etna Summit on Sawyers Bar Road and other areas mostly above 4000 feet. Advisory areas include Fort Jones, Etna and most other locations along Highway 3, and Seiad Valley and Happy Camp and most areas along Highway 96. * WHEN...Until 10 AM PST Saturday. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute. Be prepared for significant reductions in visibility at times. * 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. && $$ ORZ024-030130- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Eastern Curry County and Josephine County- Including the cities of Grants Pass and Cave Junction 922 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT....Moderate to heavy snow expected. Additional snow accumulations of 6 to 10 inches, with localized amounts up to 21 inches, in the warning area are expected. Additional snow accumulations of 1 to 3 inches in the advisory area are expected. * WHERE...Warning area includes areas along Highway 199 from Hayes Hill southward to Obrien and the California border and the Kalmiopsis Wilderness. Advisory area includes lower elevation areas outside of the Illinois Valley (and Cave Junction in the Illinois Valley) to include Williams and Grants Pass. Advisory also includes Sexton Pass along Interstate 5. * WHEN...Until 10 AM PST Saturday. Snowmelt on roadways is more likely during the daytime due to the late winter sun angle. Snow impacts are most likely this morning and tonight into Saturday morning. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ CAZ082-030130- /O.CON.KMFR.WS.W.0010.180302T1800Z-180303T1200Z/ /O.CON.KMFR.WW.Y.0013.180302T1800Z-180303T1200Z/ South Central Siskiyou County- Including the cities of Mount Shasta, Dunsmuir, and Mccloud 922 AM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Total snow accumulations of 5 to 8 inches, with localized amounts up to 12 inches, in the warning area are expected. Total snow accumulations of 4 to 6 inches in the advisory area are expected. * WHERE...Warning area includes Snowman's Summit on Highway 89 and Everitt Memorial Highway near Mount Shasta City. Advisory area includes Dunsmuir, Mount Shasta City, and Black Butte Summit on Interstate 5. * WHEN...Until 4 AM PST Saturday. The greatest impacts to roadways are expected late this afternoon into tonight. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute. Be prepared for significant reductions in visibility at times. * 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. && $$ CAZ081-030130- /O.CON.KMFR.WW.Y.0014.180302T1800Z-180303T1200Z/ Central Siskiyou County- Including the city of Weed 922 AM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of up to 2 inches, with localized amounts up to 5 inches. Winds 20 to 30 mph with gusts to 50 mph will cause areas of blowing snow. * WHERE...Central Siskiyou County to include Weed along Interstate 5. * WHEN...Until 4 AM PST Saturday. The greatest snow impacts to roadways are expected late this afternoon into tonight. * ADDITIONAL DETAILS...Plan on slippery road conditions, including during the evening commute. Strong winds will add to the driving difficulties at times. Tree branches could fall. Be prepared for reduced visibilities at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Slow down and allow extra time to reach your destination. * Carry tire chains and be prepared for snow covered roads and limited visibilities. * See http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
597 WWUS46 KMFR 022320 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 320 PM PST Fri Mar 2 2018 ORZ023-030030- /O.CAN.KMFR.WW.Y.0014.000000T0000Z-180303T0000Z/ Central Douglas County- 320 PM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY IS CANCELLED... Temperatures have warmed and showers have diminished. $$ CAZ080-031200- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Western Siskiyou County- Including the cities of Etna, Fort Jones, and Happy Camp 320 PM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Moderate to heavy snow. Additional snow accumulations of 3 to 6 inches, with localized amounts up to 13 inches, in the warning area are expected. Additional snow accumulations of 1 to 3 inches, in the advisory area are expected. * WHERE...Warning area includes Etna Summit on Sawyers Bar Road and other areas mostly above 4000 feet. Advisory areas include Fort Jones, Etna and most other locations along Highway 3, and Seiad Valley and Happy Camp and most areas along Highway 96. * WHEN...Until 10 AM PST Saturday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ ORZ024-031200- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Eastern Curry County and Josephine County- Including the cities of Grants Pass and Cave Junction 320 PM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Additional snow accumulations of 3 to 6 inches, with localized amounts up to 13 inches, in the warning area are expected. Additional snow accumulations of 1 to 3 inches in the advisory area expected. * WHERE...Warning area includes areas along Highway 199 from Hayes Hill southward to Obrien and the California border and the Kalmiopsis Wilderness. Advisory area includes lower elevation areas outside of the Illinois Valley (and Cave Junction in the Illinois Valley) to include Williams and Grants Pass. Advisory also includes Sexton Pass along Interstate 5. * WHEN...Until 10 AM PST Saturday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * 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. && $$ CAZ082-031200- /O.CON.KMFR.WS.W.0010.000000T0000Z-180303T1200Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1200Z/ South Central Siskiyou County- Including the cities of Mount Shasta, Dunsmuir, and Mccloud 320 PM PST Fri Mar 2 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... * WHAT...Moderate to heavy snow expected. Additional snow accumulations of 5 to 8 inches in the warning area are expected, with local amounts up to 12 inches. Additional snow accumulations of 3 to 5 inches in the advisory area are expected. * WHERE...Warning area includes Snowman's Summit on Highway 89 and Everitt Memorial Highway near Mount Shasta City. Advisory area includes Dunsmuir, Mount Shasta City, and Black Butte Summit on Interstate 5. * WHEN...Until 4 AM PST Saturday. * ADDITIONAL DETAILS...Plan on difficult travel conditions, including during the evening commute. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ CAZ081-031200- /O.CON.KMFR.WW.Y.0014.000000T0000Z-180303T1200Z/ Central Siskiyou County- Including the city of Weed 320 PM PST Fri Mar 2 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... * WHAT...Moderate snow and gusty winds. Additional snow accumulations of up to 2 inches, with localized amounts up to 5 inches, are expected. * WHERE...Central Siskiyou County to include Weed along Interstate 5. * WHEN...Until 4 AM PST Saturday. * ADDITIONAL DETAILS...Plan on slippery road conditions, including during the evening commute. Tree branches could fall. Be prepared for reduced visibilities at times. * 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 http://quickmap.dot.ca.gov for latest road conditions. * A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ Visit us at https://www.weather.gov/Medford
487 WWUS46 KMFR 031140 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 340 AM PST Sat Mar 3 2018 ORZ024-031800- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Eastern Curry County and Josephine County- Including the cities of Grants Pass and Cave Junction 340 AM PST Sat Mar 3 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Moderate snow. Additional snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, in the warning area are expected. Additional snow accumulations of up to 3 inches in the advisory area are expected. * WHERE...Warning area includes areas along Highway 199 from Hayes Hill southward to O'Brien and the California border and the Kalmiopsis Wilderness. Advisory area includes lower elevation areas outside of the Illinois Valley (and Cave Junction in the Illinois Valley) to include Williams and Grants Pass. The advisory also includes Sexton Pass along Interstate 5. * WHEN...Until 10 AM PST this morning. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ CAZ080-032015- /O.EXT.KMFR.WW.Y.0013.000000T0000Z-180304T0600Z/ /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ Western Siskiyou County- 340 AM PST Sat Mar 3 2018 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Moderate snow. Additional snow accumulations of 3 to 6 inches in the warning area are expected. Additional snow accumulations of 1 to 4 inches in the advisory area are expected. * WHERE...Warning area includes Etna Summit on Sawyers Bar Road and other areas mostly above 4000 feet. The warning area will be downgraded into the advisory area after 10 AM. Advisory areas include Fort Jones, Etna and most other locations along Highway 3, and Seiad Valley and Happy Camp and most areas along Highway 96. * WHEN...For the Winter Storm Warning, until 10 AM PST this morning. For the Winter Weather Advisory, until 10 PM PST this evening. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * 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. && $$ CAZ082-032015- /O.EXT.KMFR.WW.Y.0013.000000T0000Z-180304T0600Z/ /O.CON.KMFR.WS.W.0010.000000T0000Z-180303T1200Z/ South Central Siskiyou County- Including the cities of Mount Shasta and Mccloud 340 AM PST Sat Mar 3 2018 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... * WHAT...Moderate snow. Additional snow accumulations of 3 to 6 inches, with localized amounts up to 9 inches, in the warning area are expected. Additional snow accumulations of 1 to 4 inches are expected in the advisory area. * WHERE...Warning area includes Snowman's Summit on Highway 89 and Everitt Memorial Highway near Mount Shasta City. The warning area will be downgraded into the advisory area after 4 AM. Advisory area includes Dunsmuir, Mount Shasta City, and Black Butte Summit on Interstate 5. * WHEN...For the Winter Storm Warning, until 4 AM PST early this morning. For the Winter Weather Advisory, until 10 PM PST this evening. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is likely and poses a threat to life and property. Take protective action now. && $$ CAZ081-032015- /O.EXT.KMFR.WW.Y.0014.000000T0000Z-180304T0600Z/ Central Siskiyou County- Including the city of Weed 340 AM PST Sat Mar 3 2018 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Light to moderate snow with southeast wind gusts to 25 mph. Additional snow accumulations of 1 to 3 inches are expected. * WHERE...Central Siskiyou County to include Weed along Interstate 5. * WHEN...Until 10 PM PST this evening. * ADDITIONAL DETAILS...Plan on slippery road conditions. Be prepared for reduced visibilities at times. * 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. && $$ Visit us at https://www.weather.gov/Medford
098 WWUS46 KMFR 031209 WSWMFR URGENT - WINTER WEATHER MESSAGE National Weather Service Medford OR 409 AM PST Sat Mar 3 2018 CAZ082-040000- /O.EXP.KMFR.WS.W.0010.000000T0000Z-180303T1200Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180304T0600Z/ South Central Siskiyou County- Including the cities of Mount Shasta and Mccloud 409 AM PST Sat Mar 3 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...WINTER STORM WARNING HAS BEEN DOWNGRADED... * WHAT...Moderate snow. Additional snow accumulations of 3 to 6 inches over the mountains, with localized amounts up to 9 inches on Mount Shasta. Additional snow accumulations of 1 to 4 inches are expected in the valleys. * WHERE...The mountainous area includes Snowman's Summit on Highway 89 and Everitt Memorial Highway near Mount Shasta City. The advisory area includes Dunsmuir, Mount Shasta City, and Black Butte Summit on Interstate 5. * WHEN...Until 10 PM PST this evening. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is occurring, and poses a threat to life and property. Take protective action now. && $$ ORZ024-031800- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180303T1800Z/ Eastern Curry County and Josephine County- Including the cities of Grants Pass and Cave Junction 409 AM PST Sat Mar 3 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Moderate snow. Additional snow accumulations of 2 to 4 inches, with localized amounts up to 6 inches, in the warning area are expected. Additional snow accumulations of up to 3 inches in the advisory area are expected. * WHERE...Warning area includes areas along Highway 199 from Hayes Hill southward to O'Brien and the California border and the Kalmiopsis Wilderness. Advisory area includes lower elevation areas outside of the Illinois Valley (and Cave Junction in the Illinois Valley) to include Williams and Grants Pass. The advisory also includes Sexton Pass along Interstate 5. * WHEN...Until 10 AM PST this morning. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * 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 occurring, and poses a threat to life and property. Take protective action now. && $$ CAZ080-040000- /O.CON.KMFR.WS.W.0009.000000T0000Z-180303T1800Z/ /O.CON.KMFR.WW.Y.0013.000000T0000Z-180304T0600Z/ Western Siskiyou County- 409 AM PST Sat Mar 3 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Moderate snow. Additional snow accumulations of 3 to 6 inches in the warning area are expected. Additional snow accumulations of 1 to 4 inches in the advisory area are expected. * WHERE...Warning area includes Etna Summit on Sawyers Bar Road and other areas mostly above 4000 feet. The warning area will be downgraded into the advisory area after 10 AM. Advisory areas include Fort Jones, Etna and most other locations along Highway 3, and Seiad Valley and Happy Camp and most areas along Highway 96. * WHEN...For the Winter Storm Warning, until 10 AM PST this morning. For the Winter Weather Advisory, until 10 PM PST this evening. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Be prepared for significant reductions in visibility at times. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... * Travel is strongly discouraged because of dangerous conditions. * If you must travel, keep tire chains, a flashlight, blankets, food, water, medications, and a fully charged phone with you. * The safest place during a winter storm is indoors. * A Winter Storm Warning means that severe winter weather is occurring, and poses a threat to life and property. Take protective action now. && $$ CAZ081-040000- /O.CON.KMFR.WW.Y.0014.000000T0000Z-180304T0600Z/ Central Siskiyou County- Including the city of Weed 409 AM PST Sat Mar 3 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Light to moderate snow with southeast wind gusts to 25 mph. Additional snow accumulations of 1 to 3 inches are expected. * WHERE...Central Siskiyou County to include Weed along Interstate 5. * WHEN...Until 10 PM PST this evening. * ADDITIONAL DETAILS...Plan on slippery road conditions. Be prepared for reduced visibilities at times. * 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
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Medford, OR wrote its last area forecast discussion before this winter storm warning went out at Mar 1, 10:19 PM PST, 40 minutes earlier.
Area forecast discussion, Mar 1, 10:19 PM PST, 40 minutes before
Area Forecast Discussion
National Weather Service Medford OR
1019 PM PST Thu Mar 1 2018
Updated AVIATION and MARINE Sections
.DISCUSSION...Winter storm impacts are being felt across much of
the forecast area this evening. Our main change this evening was to
upgrade the Winter Weather Advisory for the Illinois Valley to a
Warning. Deep west to southwest flow and very unstable conditions
are funneling showers into the Southern Oregon coast and inland,
to the Illinois Valley. We've received a report of 5 inches new
snow at Hayes Hill since this afternoon, and we expect plenty
more (12 to 18 inches likely at Hayes Hill) in portions of the
Illinois Valley through Saturday as a low pressure center moves
towards the coast Friday and keeps snow showers going there. Snow
levels will be at or below the current snow levels through
Saturday. This means places like Hayes Hill and Obrien will
continue to see moderate to heavy snow, while Cave Junction will
see snow tonight but maybe a mix of rain and snow Friday. Further
northward toward Sexton Pass on Interstate 5 and Camas Mountain on
Highway 42, we expect less overall precipitation but still
significant snow impacts. We'll be investigating this evening to
upgrade those areas to a Warning.
Another focus area is Mount Shasta City, and they have recorded
impressive snowfall the past 24 hours, but conditions should
generally improve after this evening as flow turns westerly and less
favorable for significant snowfall.
Elsewhere, the forecast is on track, with West Side Valleys expecting
some additional snow showers tonight, and with temperatures
cooling to near freezing, there will be some slippery roads in the
morning. Thus, the Winter Weather Advisory seems reasonable. It's
noteworthy that snow impacts Friday will be very limited east of
a line from Hayes Hill to Sexton Pass and west of the Cascades, so
we may will be noting that in the Winter Weather Advisory text.
Last but not least, moderate to heavy snow will impact portions of
the East Side through tonight, and there will be blowing and drifting
snow with very low visibility. Winter headlines cover the
expected snow impacts there.
Please see the previous discussion below for more information on
the active weather pattern and expected impacts.
&&
.AVIATION...02/06Z TAF CYCLE...Overall, expect a mix of VFR and
MVFR ceilings overnight through Friday as one disturbance exits to
the east and another moves onshore. Showers will be most numerous
along the coast and into the coast ranges. Terrain will occasionally
be obscured and conditions may lower to IFR at times in heavier
showers. Low-level wind shear is possible at KOTH/KRBG overnight and
Friday morning.
Gusty south to southeast winds peaking at 20-30 kt are expected for
most TAF sites Friday afternoon. Shasta Valley and east side areas
likely have the strongest wind gusts of 35-40 kt.
Another period of steady upslope snow will develop Friday in the
Mount Shasta region, especially in the afternoon and evening, so
ceilings will likely lower to IFR there once again. -Spilde
&&
.MARINE...Updated 830 PM PST Thursday 01 Mar 2018...High and steep
northwest swell will move into the waters late tonight, peaking
Friday morning at 18 to 20 feet. A low will move into the waters
late tonight, and this will bring another round of gale force winds
and hazardous seas Friday.
Winds will diminish Friday evening and seas will gradually subside
Saturday and Sunday, but the weakened low will linger, so it will
remain cold and unsettled with showers. Winds and seas will be
relatively calm Monday through Tuesday night with light winds and
seas at or below 9 feet. The next front will move in next Wednesday
or Thursday. -Spilde
&&
.PREV DISCUSSION... /Issued 253 PM PST Thu Mar 1 2018/
DISCUSSION...
Short Term...Tonight through Sunday Night...After a brief break
in the action this morning and afternoon, the next wave of
moisture and cold air is now making its way across the area. The
latest model runs have upped the winds across the East Side, and
also increased the amount of moisture flowing into the system.
Also concerning, the band of precipitation is expected to slow as
it crosses the Cascades and the East Side. Have bumped up the
snow amounts and upgraded the Winter Weather Advisory to a Warning
for portions of Klamath, Lake, and Modoc Counties. Major impact
will be not just snowfall, but blowing and drifting snow that may
produce whiteout conditions at times.
Meanwhile, the previously issued headlines remain in place, with
snow already falling to the valley floors of the Illinois Valley
and covering the roads of the Interstate 5 passes. Mount Shasta
City remain under a good upslope pattern as well, and snow
continue to fall there. The snow will increase in coverage as the
evening proceeds, with snow levels dropping to well below valley
floors by tonight. Once the band exits to the east, showers will
continue through the night and into Friday morning. Then the next
wave is expected to pass through the area as the vertically
stacked surface low and upper trough move on shore somewhere near
or north of Cape Blanco. This will be another major wind and
precipitation producer, and with cold air already here, snow
levels will remain low. All winter headlines will continue into
Saturday morning. For more details on amounts and timing, see the
winter weather message at WSWMFR.
The trough will meander overhead into Saturday night, finally
slipping off to the east by Sunday. Showers will continue during
this time, and snow levels will gradually rise and precipitation
will lighten over the course of the weekend. Showers should come
to an end by Sunday evening, with high pressure building in for
the first time in several days, and temperatures finally starting
to rise. -BPN
LONG TERM...Monday through Thursday night...Conditions begin to dry
out with partly cloudy skies expected on Monday. High temperatures
will rebound into the upper 40s to low 50s for many of the west side
valleys and into the 30s east of the Cascades. Lows, will start off
similar to what they were on Saturday night and slowly increase each
subsequent night...becoming near normal or slightly above normal by
the end of the forecast period.
The next system is now poised to arrive on the west coast around
Wednesday and Thursday. Snow levels will be around 4000 to 5000
feet, and it could bring some moderate precipitation to the area.
That being said, the GFS is the more progressive and stronger system
versus the ECMWF which is slower and allows the precipitation to
largely dissipate before reaching the coast. Overall, this system
could be a weak to moderate atmospheric river-type system that could
provide moderate to heavy precipitation to Curry County and portions
of western Siskiyou County. This forecast favors the GFS as ensemble
solutions tend to show a similar solution, but did add a little bit
of the ECMWF into the mix as solutions this far out tend to be
somewhere in between. -Schaaf
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Winter Weather Advisory until 4 AM PST Friday for ORZ029>031.
Winter Storm Warning until 4 AM PST Friday for ORZ029-030.
Beach Hazards Statement until 4 AM PST Friday for ORZ021-022.
Winter Weather Advisory until 7 AM PST Saturday above 1000 feet
in the for ORZ021>026.
Winter Storm Warning until 7 AM PST Saturday for ORZ024.
High Surf Advisory from 4 AM to 4 PM PST Friday for ORZ021-022.
Winter Weather Advisory until 7 AM PST Saturday for ORZ027-028.
CA...Winter Weather Advisory until 4 AM PST Friday for CAZ084-085.
Winter Storm Warning until 4 AM PST Friday for CAZ085.
Winter Weather Advisory until 7 AM PST Saturday for
CAZ080-081-083.
Winter Storm Warning until 7 AM PST Saturday for CAZ082-083.
Winter Storm Warning until 7 AM PST Saturday for CAZ080.
Pacific Coastal Waters...Hazardous Seas Warning from 1 AM to 4 PM PST
Friday for PZZ350-356-370-376.
Gale Warning from 1 AM to 4 PM PST Friday for
PZZ350-356-370-376.
Small Craft Advisory for hazardous seas until 1 AM PST Friday
for PZZ350-356-370-376.
Small Craft Advisory for hazardous seas from 4 PM Friday to 4 PM
PST Saturday for PZZ350-356-370-376.
NSK/BMS/MASIn the hours before
Local storm report, Mar 1, 5:32 PM PST, 5 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
532 PM PST THU MAR 1 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0531 PM SNOW 3 E MEDFORD 42.34N 122.79W
03/01/2018 M1.4 INCH JACKSON OR PUBLIC
REPORTED AT 2000 FEET ELEVATION. TORREY
PINES DRIVE, MEDFORD, OR.
&&
NSKLocal storm report, Mar 1, 5:45 PM PST, 5 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
545 PM PST THU MAR 1 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 PM HEAVY SNOW 4 NNE SELMA 42.33N 123.59W
03/01/2018 E5.0 INCH JOSEPHINE OR DEPT OF HIGHWAYS
HAYES HILL SUMMIT, ODOT. THE DURATION OF THE
HEAVY SNOW EVENT WAS 5 HOURS.
&&Local storm report, Mar 1, 6:06 PM PST, 4 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
606 PM PST THU MAR 1 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0605 PM HEAVY SNOW BUTTE FALLS 42.54N 122.57W
03/01/2018 M3.5 INCH JACKSON OR TRAINED SPOTTER
VERY HEAVY SNOW IN A SHORT PERIOD OF TIME.
SNOW ENDED. THE DURATION OF THE HEAVY SNOW
EVENT WAS 1 HOUR 30 MINUTES.
&&Local storm report, Mar 1, 8:53 PM PST, 2 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
853 PM PST THU MAR 1 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM HEAVY RAIN 7 ESE COOS BAY 43.35N 124.09W
03/01/2018 M2.39 INCH COOS OR TRAINED SPOTTER
THE DURATION OF THE HEAVY RAIN EVENT WAS 24
HOURS.
&&Local storm report, Mar 1, 10:47 PM PST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1047 PM PST THU MAR 1 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM SNOW 2 ESE MERLIN 42.51N 123.37W
03/01/2018 M1.0 INCH JOSEPHINE OR TRAINED SPOTTER
THE DURATION OF THE SNOW EVENT WAS 2 HOURS.
&&The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 10:59 PM PST | Winter Weather Advisory | MFR | Siskiyou | 47 hr |
| Mar 2, 3:19 AM PST | Wind Advisory | MFR | Siskiyou | 16 hr |
Nearby
Winter Storm Warnings in California, 2018Every winter storm warning in 2018
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.