NOAA Current Watches-OR

* WHAT...Heavy snow possible above 3000 feet. Total snow accumulations between 6 and 12 inches, and up to 15 inches above 5000 ft. Winds could gust as high as 40 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From Thursday evening through Saturday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snow levels will start around 4000-5000 ft Thursday evening into Friday, before lowering to 3000-3500 ft Friday night. Winter Storm Watch 2025-01-29T12:57:00-08:00 2025-01-29T12:57:00-08:00 2025-01-30T22:00:00-08:00 2025-01-30T04:00:00-08:00 Actual Alert Met Future Severe Possible North Oregon Cascades; Cascades of Marion and Linn Counties; Cascades of Lane County; South Washington Cascades SAME 041005 SAME 041027 SAME 041051 SAME 041047 SAME 041043 SAME 041039 SAME 053059 SAME 053015 SAME 053011 UGC ORZ126 UGC ORZ127 UGC ORZ128 UGC WAZ211 AWIPSidentifier WSWPQR WMOidentifier WWUS46 KPQR 292057 NWSheadline WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON ABOVE 3000 FEET BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS EAS-ORG WXR VTEC /O.NEW.KPQR.WS.A.0001.250131T0600Z-250202T0000Z/ eventEndingTime 2025-02-02T00:00:00+00:00

* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...Until 5 AM MST /4 AM PST/ Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-29T13:02:00-07:00 2025-01-29T13:02:00-07:00 2025-01-29T13:02:00-07:00 2025-01-30T15:00:00-07:00 Actual Update Met Expected Moderate Likely West Central Mountains; Lower Treasure Valley; Boise Mountains; Upper Treasure Valley; Southwest Highlands; Western Magic Valley; Owyhee Mountains; Southern Twin Falls County; Upper Weiser River; Harney County; Baker County; Malheur County; Oregon Lower Treasure Valley SAME 016003 SAME 016045 SAME 016085 SAME 016087 SAME 016027 SAME 016073 SAME 016075 SAME 016015 SAME 016025 SAME 016039 SAME 016001 SAME 016047 SAME 016053 SAME 016083 SAME 041025 SAME 041001 SAME 041045 UGC IDZ011 UGC IDZ012 UGC IDZ013 UGC IDZ014 UGC IDZ015 UGC IDZ016 UGC IDZ029 UGC IDZ030 UGC IDZ033 UGC ORZ061 UGC ORZ062 UGC ORZ063 UGC ORZ064 AWIPSidentifier NPWBOI WMOidentifier WWUS75 KBOI 292002 NWSheadline AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 5 AM MST /4 AM PST/ FRIDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.EXT.KBOI.AS.Y.0003.000000T0000Z-250131T1200Z/ eventEndingTime 2025-01-31T12:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.392e408cd017643e5e26f03c50023728e8a49ffa.002.1,2025-01-28T13:58:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.6b06a82316801ba889b13e1cb1bb554116f24c2c.002.1,2025-01-27T14:54:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d76ee409b2e176bdcd31c8078cbdaf12e2caa523.002.1,2025-01-27T02:12:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.96149a2cc8abcbb25dce96020c092819381c7ac1.002.1,2025-01-26T13:21:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.fa1ba318c2d5a2c0000af5c3ad60b3f3cbeb2d2c.002.1,2025-01-26T01:30:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b6577e6534aa8a03e29047bbc8d6ee1385621efa.001.1,2025-01-25T10:27:00-07:00

* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...Until 9 AM MST /8 AM PST/ Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-29T07:41:00-07:00 2025-01-29T07:41:00-07:00 2025-01-29T07:41:00-07:00 2025-01-29T15:45:00-07:00 Actual Update Met Expected Moderate Likely West Central Mountains; Lower Treasure Valley; Boise Mountains; Upper Treasure Valley; Southwest Highlands; Western Magic Valley; Owyhee Mountains; Southern Twin Falls County; Upper Weiser River; Harney County; Baker County; Malheur County; Oregon Lower Treasure Valley SAME 016003 SAME 016045 SAME 016085 SAME 016087 SAME 016027 SAME 016073 SAME 016075 SAME 016015 SAME 016025 SAME 016039 SAME 016001 SAME 016047 SAME 016053 SAME 016083 SAME 041025 SAME 041001 SAME 041045 UGC IDZ011 UGC IDZ012 UGC IDZ013 UGC IDZ014 UGC IDZ015 UGC IDZ016 UGC IDZ029 UGC IDZ030 UGC IDZ033 UGC ORZ061 UGC ORZ062 UGC ORZ063 UGC ORZ064 AWIPSidentifier NPWBOI WMOidentifier WWUS75 KBOI 291441 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST /8 AM PST/ FRIDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KBOI.AS.Y.0003.000000T0000Z-250131T1600Z/ eventEndingTime 2025-01-31T16:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.6b06a82316801ba889b13e1cb1bb554116f24c2c.002.1,2025-01-27T14:54:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d76ee409b2e176bdcd31c8078cbdaf12e2caa523.002.1,2025-01-27T02:12:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.96149a2cc8abcbb25dce96020c092819381c7ac1.002.1,2025-01-26T13:21:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.fa1ba318c2d5a2c0000af5c3ad60b3f3cbeb2d2c.002.1,2025-01-26T01:30:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b6577e6534aa8a03e29047bbc8d6ee1385621efa.001.1,2025-01-25T10:27:00-07:00

* WHAT...Very cold temperatures as low as 24. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, and North Clark County Lowlands. * WHEN...Until 10 AM PST this morning. * IMPACTS...Hypothermia can occur with prolonged exposure to these temperatures. Cold Weather Advisory 2025-01-29T03:24:00-08:00 2025-01-29T03:24:00-08:00 2025-01-29T03:24:00-08:00 2025-01-29T10:00:00-08:00 Actual Update Met Expected Moderate Likely Tualatin Valley; West Central Willamette Valley; East Central Willamette Valley; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands; North Clark County Lowlands SAME 041067 SAME 041051 SAME 041005 SAME 041071 SAME 041053 SAME 041047 SAME 041003 SAME 041043 SAME 041039 SAME 053011 UGC ORZ109 UGC ORZ114 UGC ORZ115 UGC ORZ116 UGC ORZ117 UGC ORZ118 UGC WAZ205 AWIPSidentifier NPWPQR WMOidentifier WWUS76 KPQR 291124 NWSheadline COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KPQR.CW.Y.0008.000000T0000Z-250129T1800Z/ eventEndingTime 2025-01-29T18:00:00+00:00

* WHAT...Snow expected. Total snow accumulations between 12 and 24 inches above 5000 feet, with up to 30 inches possible over the highest peaks and ridgetops. Winds gusting as high as 50 mph. * WHERE...The southern Oregon Cascades and Siskiyou Mountains. This includes Highways 138 and 230 near Diamond Lake, Highway 62 near Crater Lake, and Highway 58 at Willamette Pass. * WHEN...From 4 AM Friday to 10 PM PST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning and evening commutes as well as weekend travel. Gusty winds could bring down tree branches as well as cause areas of blowing snow and limited visibility. Winter Weather Advisory 2025-01-29T01:46:00-08:00 2025-01-29T01:46:00-08:00 2025-01-31T04:00:00-08:00 2025-01-29T16:15:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Cascades; Siskiyou Mountains and Southern Oregon Cascades SAME 041019 SAME 041029 SAME 041035 SAME 041033 UGC ORZ027 UGC ORZ028 AWIPSidentifier WSWMFR WMOidentifier WWUS46 KMFR 290946 NWSheadline WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM FRIDAY TO 10 PM PST SATURDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.WW.Y.0002.250131T1200Z-250202T0600Z/ eventEndingTime 2025-02-02T06:00:00+00:00

* WHAT...For the Air Stagnation Advisory, a strong inversion and stagnant air conditions near the surface will trap pollutants possibly leading to poor air quality. For the Freeze Warning, sub-freezing temperatures as low as 30 expected. * WHERE...For the Air Stagnation Advisory, mainly areas inland from the immediate coast. For the Freeze Warning this morning, mainly the beaches from Port Orford to Reedsport, including North Bend and Coos Bay. * WHEN...For the Air Stagnation Advisory, until noon PST Thursday. For the Freeze Warning, until 9 AM PST this morning. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Freeze Warning 2025-01-29T00:59:00-08:00 2025-01-29T00:59:00-08:00 2025-01-29T02:00:00-08:00 2025-01-29T09:00:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Coast SAME 041011 SAME 041015 SAME 041019 UGC ORZ021 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 290859 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY... ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.FZ.W.0008.250129T1000Z-250129T1700Z/ eventEndingTime 2025-01-29T17:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.dcc252c811e1c3d08253fcd029ef680b1a847691.001.2,2025-01-28T08:58:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.001.1,2025-01-28T02:39:00-08:00

* WHAT...A strong inversion and stagnant air conditions near the surface will trap pollutants possibly leading to poor air quality. * WHERE...Valleys of Lake County and eastern Klamath County, Curry County Coast, Central Douglas County, Eastern Curry County and Josephine County, Jackson County, and Klamath Basin. * WHEN...Until noon PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-29T00:59:00-08:00 2025-01-29T00:59:00-08:00 2025-01-29T00:59:00-08:00 2025-01-29T09:00:00-08:00 Actual Update Met Expected Moderate Likely Curry County Coast; Central Douglas County; Eastern Curry County and Josephine County; Jackson County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County SAME 041015 SAME 041011 SAME 041019 SAME 041033 SAME 041029 SAME 041035 SAME 041037 UGC ORZ022 UGC ORZ023 UGC ORZ024 UGC ORZ026 UGC ORZ029 UGC ORZ030 UGC ORZ031 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 290859 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.dcc252c811e1c3d08253fcd029ef680b1a847691.004.1,2025-01-28T08:58:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.dcc252c811e1c3d08253fcd029ef680b1a847691.002.2,2025-01-28T08:58:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.004.1,2025-01-28T02:39:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.002.1,2025-01-28T02:39:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c5c207674ca2969072393da6206e1b4d6af3f61b.004.1,2025-01-27T20:57:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c5c207674ca2969072393da6206e1b4d6af3f61b.002.2,2025-01-27T20:57:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.002.1,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.004.1,2025-01-27T01:02:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.003.1,2025-01-27T01:02:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.002.1,2025-01-27T01:02:00-08:00

* WHAT...For the Air Stagnation Advisory, a strong inversion and stagnant air conditions near the surface will trap pollutants possibly leading to poor air quality. For the Freeze Warning, sub-freezing temperatures as low as 30 expected. * WHERE...For the Air Stagnation Advisory, mainly areas inland from the immediate coast. For the Freeze Warning this morning, mainly the beaches from Port Orford to Reedsport, including North Bend and Coos Bay. * WHEN...For the Air Stagnation Advisory, until noon PST Thursday. For the Freeze Warning, until 9 AM PST this morning. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Air Stagnation Advisory 2025-01-29T00:59:00-08:00 2025-01-29T00:59:00-08:00 2025-01-29T00:59:00-08:00 2025-01-29T09:00:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Coast SAME 041011 SAME 041015 SAME 041019 UGC ORZ021 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 290859 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY... ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.dcc252c811e1c3d08253fcd029ef680b1a847691.001.3,2025-01-28T08:58:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.001.3,2025-01-28T02:39:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c5c207674ca2969072393da6206e1b4d6af3f61b.001.2,2025-01-27T20:57:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.001.2,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.001.1,2025-01-27T01:02:00-08:00

* WHAT...For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For the Freeze Warning, sub-freezing temperatures as low as 29 expected. * WHERE...For the Air Stagnation Advisory, mainly areas inland from the immediate coast. For tonight's Freeze Warning, mainly the beaches from Port Orford to Reedsport, including North Bend and Coos Bay. * WHEN...For the Air Stagnation Advisory, until noon PST Thursday. For the Freeze Warning, from 2 AM to 9 AM PST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Frostbite and hypothermia could occur if unprotected skin is exposed to these cold temperatures. Freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Freeze Warning 2025-01-28T19:41:00-08:00 2025-01-28T19:41:00-08:00 2025-01-29T02:00:00-08:00 2025-01-29T04:00:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Coast SAME 041011 SAME 041015 SAME 041019 UGC ORZ021 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 290341 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY... ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.FZ.W.0008.250129T1000Z-250129T1700Z/ eventEndingTime 2025-01-29T17:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.001.1,2025-01-28T02:39:00-08:00

* WHAT...Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Lake County and eastern Klamath County, Curry County Coast, Central Douglas County, Eastern Curry County and Josephine County, Jackson County, and Klamath Basin. * WHEN...Until noon PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-28T19:41:00-08:00 2025-01-28T19:41:00-08:00 2025-01-28T19:41:00-08:00 2025-01-29T04:00:00-08:00 Actual Update Met Expected Moderate Likely Curry County Coast; Central Douglas County; Eastern Curry County and Josephine County; Jackson County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County SAME 041015 SAME 041011 SAME 041019 SAME 041033 SAME 041029 SAME 041035 SAME 041037 UGC ORZ022 UGC ORZ023 UGC ORZ024 UGC ORZ026 UGC ORZ029 UGC ORZ030 UGC ORZ031 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 290341 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.004.1,2025-01-28T02:39:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.002.1,2025-01-28T02:39:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c5c207674ca2969072393da6206e1b4d6af3f61b.004.1,2025-01-27T20:57:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c5c207674ca2969072393da6206e1b4d6af3f61b.002.2,2025-01-27T20:57:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.002.1,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.004.1,2025-01-27T01:02:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.003.1,2025-01-27T01:02:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.002.1,2025-01-27T01:02:00-08:00

* WHAT...For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For the Freeze Warning, sub-freezing temperatures as low as 29 expected. * WHERE...For the Air Stagnation Advisory, mainly areas inland from the immediate coast. For tonight's Freeze Warning, mainly the beaches from Port Orford to Reedsport, including North Bend and Coos Bay. * WHEN...For the Air Stagnation Advisory, until noon PST Thursday. For the Freeze Warning, from 2 AM to 9 AM PST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Frostbite and hypothermia could occur if unprotected skin is exposed to these cold temperatures. Freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Air Stagnation Advisory 2025-01-28T19:41:00-08:00 2025-01-28T19:41:00-08:00 2025-01-28T19:41:00-08:00 2025-01-29T04:00:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Coast SAME 041011 SAME 041015 SAME 041019 UGC ORZ021 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 290341 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY... ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ba01ab58c8574ceb325bca62eab85e05954b5d62.001.3,2025-01-28T02:39:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c5c207674ca2969072393da6206e1b4d6af3f61b.001.2,2025-01-27T20:57:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.001.2,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.001.1,2025-01-27T01:02:00-08:00

* WHAT...Snow expected. Total snow accumulations between 12 and 24 inches above 5000 feet, with up to 30 inches possible over the highest peaks and ridgetops. Winds gusting as high as 50 mph. * WHERE...The southern Oregon Cascades and Siskiyou Mountains. This includes Highways 138 and 230 near Diamond Lake, Highway 62 near Crater Lake, and Highway 58 at Willamette Pass. * WHEN...From 4 AM Friday to 10 PM PST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning and evening commutes as well as weekend travel. Gusty winds could bring down tree branches as well as areas of blowing snow. Winter Weather Advisory 2025-01-28T14:28:00-08:00 2025-01-28T14:28:00-08:00 2025-01-31T04:00:00-08:00 2025-01-29T02:30:00-08:00 Actual Alert Met Expected Moderate Likely South Central Oregon Cascades; Siskiyou Mountains and Southern Oregon Cascades SAME 041019 SAME 041029 SAME 041035 SAME 041033 UGC ORZ027 UGC ORZ028 AWIPSidentifier WSWMFR WMOidentifier WWUS46 KMFR 282228 NWSheadline WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 10 PM PST SATURDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.NEW.KMFR.WW.Y.0002.250131T1200Z-250202T0600Z/ eventEndingTime 2025-02-02T06:00:00+00:00

* WHAT...Cold temperatures as low as 25 expected. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, and North Clark County Lowlands. * WHEN...From 10 PM this evening to 10 AM PST Wednesday. * IMPACTS...Hypothermia can occur with prolonged exposure to these temperatures. Cold Weather Advisory 2025-01-28T13:01:00-08:00 2025-01-28T13:01:00-08:00 2025-01-28T22:00:00-08:00 2025-01-29T05:15:00-08:00 Actual Alert Met Expected Moderate Likely Tualatin Valley; West Central Willamette Valley; East Central Willamette Valley; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands; North Clark County Lowlands SAME 041067 SAME 041051 SAME 041005 SAME 041071 SAME 041053 SAME 041047 SAME 041003 SAME 041043 SAME 041039 SAME 053011 UGC ORZ109 UGC ORZ114 UGC ORZ115 UGC ORZ116 UGC ORZ117 UGC ORZ118 UGC WAZ205 AWIPSidentifier NPWPQR WMOidentifier WWUS76 KPQR 282101 NWSheadline COLD WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST WEDNESDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.NEW.KPQR.CW.Y.0008.250129T0600Z-250129T1800Z/ eventEndingTime 2025-01-29T18:00:00+00:00

* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that can trap pollutants. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...Until 9 AM MST /8 AM PST/ Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-28T13:58:00-07:00 2025-01-28T13:58:00-07:00 2025-01-28T13:58:00-07:00 2025-01-29T08:00:00-07:00 Actual Update Met Expected Moderate Likely West Central Mountains; Lower Treasure Valley; Boise Mountains; Upper Treasure Valley; Southwest Highlands; Western Magic Valley; Owyhee Mountains; Southern Twin Falls County; Upper Weiser River; Harney County; Baker County; Malheur County; Oregon Lower Treasure Valley SAME 016003 SAME 016045 SAME 016085 SAME 016087 SAME 016027 SAME 016073 SAME 016075 SAME 016015 SAME 016025 SAME 016039 SAME 016001 SAME 016047 SAME 016053 SAME 016083 SAME 041025 SAME 041001 SAME 041045 UGC IDZ011 UGC IDZ012 UGC IDZ013 UGC IDZ014 UGC IDZ015 UGC IDZ016 UGC IDZ029 UGC IDZ030 UGC IDZ033 UGC ORZ061 UGC ORZ062 UGC ORZ063 UGC ORZ064 AWIPSidentifier NPWBOI WMOidentifier WWUS75 KBOI 282058 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST /8 AM PST/ FRIDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KBOI.AS.Y.0003.000000T0000Z-250131T1600Z/ eventEndingTime 2025-01-31T16:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d76ee409b2e176bdcd31c8078cbdaf12e2caa523.002.1,2025-01-27T02:12:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.96149a2cc8abcbb25dce96020c092819381c7ac1.002.1,2025-01-26T13:21:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.fa1ba318c2d5a2c0000af5c3ad60b3f3cbeb2d2c.002.1,2025-01-26T01:30:00-07:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b6577e6534aa8a03e29047bbc8d6ee1385621efa.001.1,2025-01-25T10:27:00-07:00

* WHAT...Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Portions of central, north central, and northeast Oregon and central, south central, and southeast Washington. * WHEN...Until 4 AM PST Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-28T12:56:00-08:00 2025-01-28T12:56:00-08:00 2025-01-28T12:56:00-08:00 2025-01-30T07:00:00-08:00 Actual Update Met Expected Moderate Likely Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Central Oregon; Eastern Columbia River Gorge of Washington; Kittitas Valley; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington; Simcoe Highlands SAME 041021 SAME 041055 SAME 041065 SAME 041049 SAME 041059 SAME 041069 SAME 041013 SAME 041017 SAME 041031 SAME 053039 SAME 053037 SAME 053077 SAME 053005 SAME 053021 SAME 053071 SAME 053013 UGC ORZ041 UGC ORZ044 UGC ORZ507 UGC ORZ508 UGC ORZ510 UGC ORZ511 UGC WAZ024 UGC WAZ026 UGC WAZ027 UGC WAZ028 UGC WAZ029 UGC WAZ521 AWIPSidentifier NPWPDT WMOidentifier WWUS76 KPDT 282056 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KPDT.AS.Y.0001.000000T0000Z-250131T1200Z/ eventEndingTime 2025-01-31T12:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.20c23340b4c3b024ab0219e8c7acbcd8c947ad54.001.1,2025-01-26T03:26:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.da2eb7c0f0254091e37bbff5ed6e156f136a46ec.001.1,2025-01-25T09:20:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.648d111a3f29875a620e959ebbaa3b0921efe94c.001.1,2025-01-25T01:29:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.783f0e03e626823220cf9202526962a4aabd28c8.001.1,2025-01-24T17:31:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.26ab22eb6727ea40d2f0283460fe545f3624c230.001.1,2025-01-24T09:59:00-08:00

Temperatures have risen above 25 degrees across the area. Cold Weather Advisory 2025-01-28T09:48:00-08:00 2025-01-28T09:48:00-08:00 2025-01-28T09:48:00-08:00 2025-01-28T11:00:00-08:00 Actual Update Met Expected Moderate Likely Lower Columbia River; Tualatin Valley; West Hills and Chehalem Mountains; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Central Willamette Valley; East Central Willamette Valley; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills SAME 041009 SAME 041067 SAME 041051 SAME 041005 SAME 041071 SAME 041053 SAME 041047 SAME 041003 SAME 041043 SAME 041039 SAME 053015 SAME 053011 SAME 053059 UGC ORZ108 UGC ORZ109 UGC ORZ110 UGC ORZ111 UGC ORZ112 UGC ORZ113 UGC ORZ114 UGC ORZ115 UGC ORZ116 UGC ORZ117 UGC ORZ118 UGC WAZ204 UGC WAZ205 UGC WAZ206 UGC WAZ207 UGC WAZ208 AWIPSidentifier NPWPQR WMOidentifier WWUS76 KPQR 281748 NWSheadline COLD WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.EXP.KPQR.CW.Y.0007.000000T0000Z-250128T1800Z/ eventEndingTime 2025-01-28T18:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.a44b82f22282cb2e5ee469a490f1128078555356.001.1,2025-01-27T12:44:00-08:00

* WHAT...The current Freeze Warning will be allowed to expire as daytime warming continues. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For tonight's Freeze Warning, sub-freezing temperatures as low as 29 expected. * WHERE...For the Air Stagnation Advisory, mainly areas inland from the immediate coast. For tonight's Freeze Warning, mainly the beaches from Port Orford to Reedsport, including North Bend and Coos Bay. * WHEN...For the Air Stagnation Advisory, until noon PST Thursday. For tonight's Freeze Warning, from 2 AM to 9 AM PST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Frostbite and hypothermia could occur if unprotected skin is exposed to these cold temperatures. Freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Freeze Warning 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-29T02:00:00-08:00 2025-01-28T21:00:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Coast SAME 041011 SAME 041015 SAME 041019 UGC ORZ021 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 281658 NWSheadline FREEZE WARNING WILL EXPIRE AT 9 AM PST THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY... ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.FZ.W.0008.250129T1000Z-250129T1700Z/ eventEndingTime 2025-01-29T17:00:00+00:00

* WHAT...Upcoming temperatures will rise above Cold Weather Advisory thresholds. This product will be allowed to expire. Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Valleys of Eastern Curry County, Josephine County, and Jackson County, including Medford, Ashland, Grants Pass, Roseburg, Cave Junction, and all surrounding areas. * WHEN...The Air Stagnation Advisory will continue Until noon PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-28T21:00:00-08:00 Actual Update Met Expected Moderate Likely Eastern Curry County and Josephine County; Jackson County SAME 041015 SAME 041033 SAME 041029 UGC ORZ024 UGC ORZ026 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 281658 NWSheadline COLD WEATHER ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.002.1,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.002.1,2025-01-27T01:02:00-08:00

* WHAT...Upcoming temperatures will rise above Cold Weather Advisory thresholds. This product will be allowed to expire. Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Valleys of Lake County and eastern Klamath County, Curry County Coast, Central Douglas County, and Klamath Basin. * WHEN...The Air Stagnation Advisory will continue Until noon PST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Air Stagnation Advisory 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-28T21:00:00-08:00 Actual Update Met Expected Moderate Likely Curry County Coast; Central Douglas County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County SAME 041015 SAME 041011 SAME 041019 SAME 041035 SAME 041037 UGC ORZ022 UGC ORZ023 UGC ORZ029 UGC ORZ030 UGC ORZ031 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 281658 NWSheadline AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.002.1,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.004.1,2025-01-27T01:02:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.003.1,2025-01-27T01:02:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.002.1,2025-01-27T01:02:00-08:00

* WHAT...The current Freeze Warning will be allowed to expire as daytime warming continues. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. For tonight's Freeze Warning, sub-freezing temperatures as low as 29 expected. * WHERE...For the Air Stagnation Advisory, mainly areas inland from the immediate coast. For tonight's Freeze Warning, mainly the beaches from Port Orford to Reedsport, including North Bend and Coos Bay. * WHEN...For the Air Stagnation Advisory, until noon PST Thursday. For tonight's Freeze Warning, from 2 AM to 9 AM PST Wednesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Frostbite and hypothermia could occur if unprotected skin is exposed to these cold temperatures. Freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Air Stagnation Advisory 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-28T08:58:00-08:00 2025-01-28T21:00:00-08:00 Actual Update Met Expected Moderate Likely South Central Oregon Coast SAME 041011 SAME 041015 SAME 041019 UGC ORZ021 AWIPSidentifier NPWMFR WMOidentifier WWUS76 KMFR 281658 NWSheadline FREEZE WARNING WILL EXPIRE AT 9 AM PST THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST THURSDAY... ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY BLOCKCHANNEL EAS BLOCKCHANNEL NWEM BLOCKCHANNEL CMAS VTEC /O.CON.KMFR.AS.Y.0004.000000T0000Z-250130T2000Z/ eventEndingTime 2025-01-30T20:00:00+00:00 expiredReferences w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c9e7990c2cde3913a5692a5967a596918e7fcc43.001.2,2025-01-27T11:16:00-08:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.c421ffcea1ec4728f67a39897a02e9503c9e7bb0.001.1,2025-01-27T01:02:00-08:00