Alert archive / Oregon / Wind Advisories in 2017
Wind Advisory 42, NWS Medford, OR
NWS Medford, OR issued this wind advisory at Dec 18, 2017, 3:11 PM PST for Klamath County, Lake County, Oregon. It took effect at Dec 19, 2017, 10:00 AM PST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Dec 18, 2017, 3:11 PM PST (23:11 UTC)
- In effect from
- Dec 19, 2017, 10:00 AM PST
- Expired
- Dec 20, 2017, 4:00 AM PST
- In force
- 18 hr
- Issued by
- NWS Medford, OR
Counties Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 158 km from the middle of the area, began a volume at 23:08 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, 11.2 hours before the alert went out and 152 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
- 939 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
007 WWUS76 KMFR 182311 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 311 PM PST Mon Dec 18 2017 CAZ085-190015- /O.CAN.KMFR.HW.A.0020.171219T1800Z-171220T1200Z/ Modoc County- 311 PM PST Mon Dec 18 2017 ...HIGH WIND WATCH IS CANCELLED... Winds will still be high, and will be included in the Winter Weather Advisory. $$ ORZ031-191115- /O.UPG.KMFR.HW.A.0020.171219T1800Z-171220T1200Z/ /O.NEW.KMFR.WI.Y.0042.171219T1800Z-171220T1200Z/ /O.NEW.KMFR.HW.W.0019.171219T1800Z-171220T1200Z/ /O.EXT.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Central and Eastern Lake County- Including the city of Adel 311 PM PST Mon Dec 18 2017 ...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY... ...HIGH WIND WARNING IN EFFECT FROM 10 AM TUESDAY TO 4 AM PST WEDNESDAY... ...WIND ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 4 AM PST WEDNESDAY... The National Weather Service in Medford has upgraded the High Wind Watch to a High Wind Warning...A Wind Advisory has also been issued. Both the warning and the advisory are in effect from 10 AM Tuesday to 4 AM PST Wednesday. * Winds: High wind warning winds are southwest 40 to 50 mph with gusts to 60 mph. Wind advisory winds will be from 25 to 40 mph with gusts to 45 mph. * High Wind Warning locations include...Highway 31 from Summer Lake to Paisley. Wind Advisory Locations include Highway 31 from Summer Lake to Silver Lake; Highway 140 from Adel to the Nevada State Line; and Highway 395 from Valley Falls to Alkali Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Snow could arrive while winds are still gusty, causing blowing snow and poor visibility. * Air Stagnation locations include: All inland valleys. * Air Stagnation impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$ ORZ021-022-191115- /O.NEW.KMFR.HW.W.0019.171219T1500Z-171220T0000Z/ South Central Oregon Coast-Curry County Coast- Including the city of Port Orford 311 PM PST Mon Dec 18 2017 ...HIGH WIND WARNING IN EFFECT FROM 7 AM TO 4 PM PST TUESDAY... The National Weather Service in Medford has issued a High Wind Warning...which is in effect from 7 AM to 4 PM PST Tuesday. * Winds...South 50 to 60 mph with gusts to 70 mph. Cape Blanco winds will be south at 70 mph with gusts as high as 85 mph. * Timing...7 AM through 4 PM with the strongest winds occurring after 10 am. * Locations include...Portions of the Coast and Highway 101 from Port Orford to Denmark including Cape Blanco. * Impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. Slow down and allow extra time to reach your destination. && $$ ORZ030-191115- /O.UPG.KMFR.HW.A.0020.171219T1800Z-171220T1200Z/ /O.NEW.KMFR.WI.Y.0042.171219T1800Z-171220T1200Z/ /O.EXT.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Northern and Eastern Klamath County and Western Lake County- Including the cities of Beatty, Bly, Chemult, and Sprague River 311 PM PST Mon Dec 18 2017 ...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY... ...WIND ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 4 AM PST WEDNESDAY... The National Weather Service in Medford has issued a Wind Advisory...which is in effect from 10 AM Tuesday to 4 AM PST Wednesday. The High Wind Watch is no longer in effect. * Winds...Southwest winds 20 to 35 mph with gusts to 50 mph Tuesday morning, peaking Tuesday evening. * Wind advisory locations include...Highway 31 north of Silver Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Snow could arrive while winds are still gusty, causing blowing snow and poor visibility. * Air Stagnation locations include: All inland valleys. * Air Stagnation impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$ ORZ023-024-026-191115- /O.EXT.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Central Douglas County-Eastern Curry County and Josephine County- Jackson County- Including the cities of Drain, Elkton, Roseburg, Sutherlin, Green, Myrtle Creek, Canyonville, Grants Pass, Cave Junction, Medford, and Ashland 311 PM PST Mon Dec 18 2017 ...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY... * Locations include: All inland valleys. * Impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$ ORZ029-191115- /O.EXT.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Klamath Basin- Including the cities of Altamont and Klamath Falls 311 PM PST Mon Dec 18 2017 ...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY... * Locations include: All inland valleys. * Impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$
5 follow-up statements
897 WWUS76 KMFR 191109 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 309 AM PST Tue Dec 19 2017 ORZ031-192315- /O.CON.KMFR.HW.W.0019.171219T1800Z-171220T1200Z/ /O.CON.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ /O.CON.KMFR.WI.Y.0042.171219T1800Z-171220T1200Z/ Central and Eastern Lake County- Including the city of Adel 309 AM PST Tue Dec 19 2017 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY... ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY... * Winds: High wind warning winds are southwest 40 to 50 mph with gusts to 60 mph. Wind advisory winds will be from 25 to 40 mph with gusts to 45 mph. * High Wind Warning locations include...Highway 31 from Summer Lake to Paisley. Wind Advisory Locations include Highway 31 from Summer Lake to Silver Lake; Highway 140 from Adel to the Nevada State Line; and Highway 395 from Valley Falls to Alkali Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Snow could arrive while winds are still gusty, causing blowing snow and poor visibility. * Air Stagnation locations include: All inland valleys. * Air Stagnation impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$ ORZ021-022-192315- /O.CON.KMFR.HW.W.0019.171219T1500Z-171220T0000Z/ South Central Oregon Coast-Curry County Coast- Including the city of Port Orford 309 AM PST Tue Dec 19 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 4 PM PST THIS AFTERNOON... * Winds...South 50 to 60 mph with gusts to 70 mph. Cape Blanco winds will be south at 70 mph with gusts as high as 85 mph. * Timing...7 AM this morning through 4 PM this afternoon with the strongest winds occurring after 10 AM. * Locations include...Portions of the coast and Highway 101 from Port Orford to Denmark including Cape Blanco. * Impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. Slow down and allow extra time to reach your destination. && $$ ORZ030-192315- /O.CON.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ /O.CON.KMFR.WI.Y.0042.171219T1800Z-171220T1200Z/ Northern and Eastern Klamath County and Western Lake County- Including the cities of Beatty, Bly, Chemult, and Sprague River 309 AM PST Tue Dec 19 2017 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY... * Winds...Southwest winds 20 to 35 mph with gusts to 50 mph late this morning, peaking this evening. * Wind advisory locations include...Highway 31 north of Silver Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Snow could arrive while winds are still gusty, causing blowing snow and poor visibility. * Air Stagnation locations include: All inland valleys. * Air Stagnation impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$ ORZ023-024-026-191215- /O.CON.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Central Douglas County-Eastern Curry County and Josephine County- Jackson County- Including the cities of Drain, Elkton, Roseburg, Sutherlin, Green, Myrtle Creek, Canyonville, Grants Pass, Cave Junction, Medford, and Ashland 309 AM PST Tue Dec 19 2017 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... * Locations include: All inland valleys. * Impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$ ORZ029-191215- /O.CON.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Klamath Basin- Including the cities of Altamont and Klamath Falls 309 AM PST Tue Dec 19 2017 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... * Locations include: All inland valleys. * Impacts: Limited ventilation will result in stagnant air that is expected to result in degraded air quality. This degraded air quality may pose a risk to those working outside and to those with sensitive health issues. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... An air stagnation advisory indicates that due to limited movement of an airmass across the advisory area, pollution will increase. && $$
335 WWUS76 KMFR 191157 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 357 AM PST Tue Dec 19 2017 ORZ031-200000- /O.EXP.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ /O.CON.KMFR.HW.W.0019.171219T1800Z-171220T1200Z/ /O.CON.KMFR.WI.Y.0042.171219T1800Z-171220T1200Z/ Central and Eastern Lake County- Including the city of Adel 357 AM PST Tue Dec 19 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY... ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY... ...AIR STAGNATION ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... * Winds: Southwest 40 to 50 mph with gusts to 60 mph in the warning area. Southwest 25 to 40 mph with gusts to 45 mph in the advisory area. * High Wind Warning locations include...Highway 31 from Summer Lake to Paisley. Wind Advisory Locations include Highway 31 from Summer Lake to Silver Lake; Highway 140 from Adel to the Nevada State Line; and Highway 395 from Valley Falls to Alkali Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Snow could arrive while winds are still gusty, causing blowing snow and poor visibility. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ030-200000- /O.EXP.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ /O.CON.KMFR.WI.Y.0042.171219T1800Z-171220T1200Z/ Northern and Eastern Klamath County and Western Lake County- Including the cities of Beatty, Bly, Chemult, and Sprague River 357 AM PST Tue Dec 19 2017 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY... ...AIR STAGNATION ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... * Winds...Southwest 20 to 35 mph with gusts to 50 mph late this morning, peaking this evening. * Wind advisory locations include...Highway 31 north of Silver Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Snow could arrive while winds are still gusty, causing blowing snow and poor visibility. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ023-024-026-191300- /O.EXP.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Central Douglas County-Eastern Curry County and Josephine County- Jackson County- Including the cities of Drain, Elkton, Roseburg, Sutherlin, Green, Myrtle Creek, Canyonville, Grants Pass, Cave Junction, Medford, and Ashland 357 AM PST Tue Dec 19 2017 ...AIR STAGNATION ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... A cold front will approach the area today allowing the stagnant air to mix out. $$ ORZ029-191300- /O.EXP.KMFR.AS.Y.0006.000000T0000Z-171219T1200Z/ Klamath Basin- Including the cities of Altamont and Klamath Falls 357 AM PST Tue Dec 19 2017 ...AIR STAGNATION ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... A cold front will approach the area today allowing the stagnant air to mix out. $$ ORZ021-022-200000- /O.CON.KMFR.HW.W.0019.171219T1500Z-171220T0000Z/ South Central Oregon Coast-Curry County Coast- Including the city of Port Orford 357 AM PST Tue Dec 19 2017 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 4 PM PST THIS AFTERNOON... * Winds...South 50 to 60 mph with gusts to 70 mph. At Cape Blanco, winds will be south at 70 mph with gusts as high as 85 mph. * Timing...7 AM this morning through 4 PM this afternoon with the strongest winds occurring after 10 AM. * Locations include...Portions of the coast and Highway 101 from Port Orford to Denmark including Cape Blanco. * Impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. Slow down and allow extra time to reach your destination. && $$ Petrucelli
721 WWUS76 KMFR 192255 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 255 PM PST Tue Dec 19 2017 ORZ031-201200- /O.CON.KMFR.HW.W.0019.000000T0000Z-171220T1200Z/ /O.CON.KMFR.WI.Y.0042.000000T0000Z-171220T1200Z/ Central and Eastern Lake County- Including the city of Adel 255 PM PST Tue Dec 19 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * Winds: Southwest 40 to 50 mph with gusts to 60 mph in the warning area. Southwest 25 to 40 mph with gusts to 45 mph in the advisory area. * High Wind Warning locations include...Highway 31 from Summer Lake to Paisley. Wind Advisory locations include Highway 31 from Summer Lake to Silver Lake, Highway 140 from Adel to the Nevada State Line, and Highway 395 from Valley Falls to Alkali Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...3 to 8 inches of snowfall is expected above 5500 foot elevations this evening through Wednesday morning, with 1 to 3 inches below that elevation. Therefore, blowing and drifting snow is expected along with reduced visibilities, primarily between 8 PM this evening and 2 AM PST Wednesday morning. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ021-022-200000- /O.CON.KMFR.HW.W.0019.000000T0000Z-171220T0000Z/ South Central Oregon Coast-Curry County Coast- Including the city of Port Orford 255 PM PST Tue Dec 19 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * Winds...South 50 to 60 mph with gusts to 70 mph. At Cape Blanco, winds will be south at 70 mph with gusts as high as 85 mph. * Timing...7 AM this morning through 4 PM this afternoon with the strongest winds occurring after 10 AM. * Locations include...Portions of the coast and Highway 101 from Port Orford to Denmark including Cape Blanco. * Impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. Slow down and allow extra time to reach your destination. && $$ ORZ030-201200- /O.CON.KMFR.WI.Y.0042.000000T0000Z-171220T1200Z/ Northern and Eastern Klamath County and Western Lake County- 255 PM PST Tue Dec 19 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * Winds...Southwest 20 to 35 mph with gusts to 50 mph late this morning, peaking this evening. * Wind advisory locations include...Highway 31 north of Silver Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Around 3 inches of snowfall is expected in this area, so blowing and drifting snow and with poor visibilities should be expected overnight into Wednesday morning. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ BTL
551 WWUS76 KMFR 200013 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 413 PM PST Tue Dec 19 2017 ORZ021-022-200115- /O.EXP.KMFR.HW.W.0019.000000T0000Z-171220T0000Z/ South Central Oregon Coast-Curry County Coast- Including the city of Port Orford 413 PM PST Tue Dec 19 2017 ...HIGH WIND WARNING HAS EXPIRED... The High Wind Warning has expired. A strong cold front has moved inland. Peak wind gusts included 55 mph at Flynn Prairie and Port Orford, and 63 mph at Humbug Mountain. $$ ORZ031-201200- /O.CON.KMFR.HW.W.0019.000000T0000Z-171220T1200Z/ /O.CON.KMFR.WI.Y.0042.000000T0000Z-171220T1200Z/ Central and Eastern Lake County- Including the city of Adel 413 PM PST Tue Dec 19 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * Winds: Southwest 40 to 50 mph with gusts to 60 mph in the warning area. Southwest 25 to 40 mph with gusts to 45 mph in the advisory area. * High Wind Warning locations include...Highway 31 from Summer Lake to Paisley. Wind Advisory locations include...Highway 31 from Summer Lake to Silver Lake, Highway 140 from Adel to the Nevada State Line, and Highway 395 from Valley Falls to Alkali Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...3 to 8 inches of snowfall is expected above 5500 foot elevations this evening through Wednesday morning, with 1 to 3 inches below that elevation. Therefore, blowing and drifting snow is expected along with reduced visibilities, primarily between 8 PM this evening and 2 AM PST Wednesday morning. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. Travel will be impacted, especially for high profile vehicles. A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ ORZ030-201200- /O.CON.KMFR.WI.Y.0042.000000T0000Z-171220T1200Z/ Northern and Eastern Klamath County and Western Lake County- 413 PM PST Tue Dec 19 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * Winds...Southwest 20 to 35 mph with gusts to 50 mph through tonight, though with peak strength this evening. * Wind advisory locations include...Highway 31 north of Silver Lake. * Wind impacts...Travel on area roadways could become difficult, especially for high-profile vehicles. * Snow...Around 3 inches of snowfall is expected in this area, so blowing and drifting snow and with poor visibilities should be expected overnight into Wednesday morning. * View the hazard area in detail at https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Wind Advisory means that winds of 35 mph are expected with higher gusts possible. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ DW
650 WWUS76 KMFR 201151 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 351 AM PST Wed Dec 20 2017 ORZ031-201300- /O.EXP.KMFR.HW.W.0019.000000T0000Z-171220T1200Z/ /O.EXP.KMFR.WI.Y.0042.000000T0000Z-171220T1200Z/ Central and Eastern Lake County- Including the city of Adel 351 AM PST Wed Dec 20 2017 ...HIGH WIND WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... ...WIND ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... Gusty winds are still expected today, but they are expected to remain below warning and advisory criteria. $$ ORZ030-201300- /O.EXP.KMFR.WI.Y.0042.000000T0000Z-171220T1200Z/ Northern and Eastern Klamath County and Western Lake County- 351 AM PST Wed Dec 20 2017 ...WIND ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... Gusty winds are still expected today, but they are expected to remain below advisory criteria. $$ Petrucelli
What forecasters said that day
The local office's own words before this wind advisory 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 wind advisory went out at Dec 18, 9:08 AM PST, 6 hours 3 minutes earlier.
Area forecast discussion, Dec 18, 9:08 AM PST, 6 hours 3 minutes before
Area Forecast Discussion
National Weather Service Medford OR
908 AM PST Mon Dec 18 2017
.UPDATE...Current observations are indicating the current forecast
is on track. This will be the last day of high pressure before the
change in pattern occurs with rain and snow coming into the
Pacific Northwest. Today's forecast challenge will be determining
the timing and amounts as models still show some slight
differences. Have attached the previous discussion which details
the current thinking. -Schaaf
&&
.PREV DISCUSSION... /Issued 405 AM PST Mon Dec 18 2017/
DISCUSSION...
Fog and freezing fog has developed over the usual places this
morning in the Umpqua valley and near the Illinois valley in
Grants Pass. Clouds are making it really difficult for
visibilities to come crashing down in Medford, but we're currently
looking at 6SM here at the airport. Thinking that will continue
through the morning as the the clouds passing through should
mess with the inversion meeting complete saturation.
The other topic for this morning is the winter storm system for
Tuesday evening into Wednesday. The biggest concerns are...
* Low level snow with snow levels roughly around 2000 feet ahead
and behind of frontal passage.
* Travel issues over the higher passes, specifically the Cascade
passes.
* Possibly some minor travel issues over I-5. With snow levels
around 2000 feet, some snow should fall over the lower passes.
The bulk of the snow fall should occur along the front around 3z
Wednesday to about 12 Z Wednesday. The sustained west flow up onto
the Cascades later in the morning will keep the snow falling in
moderate amounts along the Cascades post frontal passage. Storm
total snow accumulations will be approaching up to 16 inches near
Crater Lake over a 24 hour time period ending at 0Z Thursday.
With a negatively tilted trough, this system will remain very
efficient at pulling in moisture ahead of the front. This will
result in higher than normal snow fall east of the Cascades. Snow
totals east of the Cascades will be roughly 4 to 8 inches with
localized areas reaching 10 inches near Chemult and Crescent along
Highway 97.
After that front passes, snow levels fall down close to the valley
floor in the Rogue Valley. With temperatures forecasted near
freezing in Medford, it seems reasonable that we'll see some post
frontal snow fall during the morning hours after 12z. With ground
temperatures above freezing, it's hard to see anything really
sticking to the roadways. However, accumulating snow on grassy
surfaces seems probable.
Wind is the other issue with this system moving through. 700 mb
wind flow increases ahead of the system around 00z Wednesday with
the models showing 65 to 80 knot winds on the east side. The
pressure gradient ahead of the front is suggesting a 9mb pressure
gradient between Redding and Medford. Therefore, we'll probably
see advisory level winds in the Shasta valley with gusts up to 40
mph there. East of the Cascades near Summer Lake, we're expecting
gusts up to 50 mph. -Smith
AVIATION...18/12Z TAF CYCLE...Along the coast and over the coastal
waters...Areas of MVFR cigs will clear to VFR by this afternoon.
Areas of MVFR will return and rain will develop late this evening as
a strong cold front approaches the coast. West of the
Cascades...areas of MVFR/IFR cigs/vsbys in low clouds and fog in
valleys will clear to VFR by late morning. Low clouds and fog are
likely to form again during the evening and continue into early
Tuesday morning. The remainder of the area will remain VFR through
tonight. From the Cascades east...VFR conditions will prevail
through tonight. -DW
MARINE...Updated 300 AM PST Monday 18 Dec 2017...Weak high
pressure today will be followed by increasing southerly winds
tonight ahead of a strong cold front. The front will move through
the waters Tuesday with gales and high and very steep seas. High and
steep swell with gusty westerly winds will follow Tuesday night into
Wednesday night. Winds will turn north Wednesday night and persist
into the weekend with gradually diminishing seas. -DW
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Air Stagnation Advisory until 8 AM PST Tuesday for ORZ029>031.
High Wind Watch from Tuesday morning through late Tuesday night
for ORZ030-031.
Winter Storm Watch from Tuesday afternoon through Wednesday
morning for ORZ029-030.
Air Stagnation Advisory until 8 AM PST Tuesday for
ORZ023-024-026.
Winter Storm Watch from Tuesday afternoon through Wednesday
morning for ORZ023>026.
Winter Storm Watch from Tuesday afternoon through Wednesday
morning for ORZ027-028.
CA...High Wind Watch from Tuesday morning through late Tuesday night
for CAZ085.
Winter Storm Watch from Tuesday afternoon through Wednesday
morning for CAZ080>083.
Pacific Coastal Waters...Small Craft Advisory from 4 AM to 4 PM PST Tuesday for
PZZ350-356-376.
Gale Warning from 7 AM to 4 PM PST Tuesday for
PZZ350-356-370-376.
Small Craft Advisory from 1 AM to 7 AM PST Tuesday for PZZ370.
BMS/CZS/DWThe office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 9:36 PM PST | High Wind Watch | MFR | Klamath, Lake | 18 hr |
| Dec 18, 4:12 AM PST | Gale Warning | MFR | 36 hr | |
| Dec 18, 4:12 AM PST | Small Craft Advisory | MFR | 36 hr | |
| Dec 18, 3:11 PM PST | High Wind Warning | MFR | Coos, Curry, Douglas, Lake | 37 hr |
| Dec 18, 3:13 PM PST | Hazardous Seas Warning | MFR | 49 hr | |
| Dec 18, 3:58 PM PST | Winter Storm Warning | MFR | Coos, Douglas, Jackson, Josephine, Klamath, Lake | 41 hr |
| Dec 18, 3:58 PM PST | Winter Weather Advisory | MFR | Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more | 41 hr |
Nearby
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.