NOAA Current Watches

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...A period of stagnant air with light winds is expected. * WHERE...Central Willamette Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Air stagnation could result in the development and Air Stagnation Advisory 2023-12-14T19:43:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely Central Willamette Valley FIPS6 041047 041053 041071 UGC ORZ007 VTEC /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST FRIDAY... * WHAT...For the Air Stagnation Advisory, a period of stagnant air with light winds is expected. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. Air Stagnation Advisory 2023-12-14T19:43:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.NEW.KPQR.FG.Y.0031.231215T0400Z-231215T1800Z/ /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ SUNDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. * WHERE...Portions of south central, southwest and west central Idaho and northeast and southeast Oregon. Air Stagnation Advisory 2023-12-14T13:11:00-08:00 2023-12-17T22:00:00-08:00 Actual Alert Met Expected Minor Likely Baker County; Harney County; Malheur County; Oregon Lower Treasure Valley FIPS6 041001 041025 041045 UGC ORZ061 ORZ062 ORZ063 ORZ064 VTEC /O.CON.KBOI.AS.Y.0005.000000T0000Z-231218T0600Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...A period of stagnant air with light winds is expected. * WHERE...Central and South Willamette Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Air stagnation could result in the development and Air Stagnation Advisory 2023-12-14T08:42:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely Central Willamette Valley; South Willamette Valley FIPS6 041003 041039 041043 041047 041053 041071 UGC ORZ007 ORZ008 VTEC /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...A period of stagnant air with light winds is expected. * WHERE...Central Willamette Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Air stagnation could result in the development and Air Stagnation Advisory 2023-12-14T06:20:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely Central Willamette Valley FIPS6 041047 041053 041071 UGC ORZ007 VTEC /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... ...DENSE FOG ADVISORY IS CANCELLED... * WHAT...A period of stagnant air with light winds is expected. * WHERE...South Willamette Valley. * WHEN...Until 10 AM PST Sunday. Air Stagnation Advisory 2023-12-14T06:20:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.CAN.KPQR.FG.Y.0030.000000T0000Z-231214T2000Z/ /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in areas of dense fog. For the Air Stagnation Advisory, a period of stagnant air with light winds is expected. Dense Fog Advisory 2023-12-14T01:14:00-08:00 2023-12-14T12:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.NEW.KPQR.FG.Y.0030.231214T0914Z-231214T2000Z/ /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...A period of stagnant air with light winds is expected. * WHERE...Central Willamette Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Air stagnation could result in the development and Air Stagnation Advisory 2023-12-14T01:14:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely Central Willamette Valley FIPS6 041047 041053 041071 UGC ORZ007 VTEC /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in areas of dense fog. For the Air Stagnation Advisory, a period of stagnant air with light winds is expected. Air Stagnation Advisory 2023-12-14T01:14:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.NEW.KPQR.FG.Y.0030.231214T0914Z-231214T2000Z/ /O.CON.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 11 PM MST /10 PM PST/ SUNDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. * WHERE...Portions of south central, southwest and west central Idaho and northeast and southeast Oregon. Air Stagnation Advisory 2023-12-13T23:14:00-08:00 2023-12-17T22:00:00-08:00 Actual Alert Met Expected Minor Likely Baker County; Harney County; Malheur County; Oregon Lower Treasure Valley FIPS6 041001 041025 041045 UGC ORZ061 ORZ062 ORZ063 ORZ064 VTEC /O.EXT.KBOI.AS.Y.0005.000000T0000Z-231218T0600Z/

...WIND ADVISORY IN EFFECT UNTIL 10 AM PST THURSDAY FOR LADD AND PYLES CANYONS... * WHAT...South winds 25 to 35 mph with gusts of 40 to 50 mph for Ladd and Pyles canyons. * WHERE...Grande Ronde Valley. * WHEN...Until 10 AM PST Thursday. Wind Advisory 2023-12-13T19:09:00-08:00 2023-12-14T10:00:00-08:00 Actual Alert Met Expected Minor Likely Grande Ronde Valley FIPS6 041061 UGC ORZ049 VTEC /O.NEW.KPDT.WI.Y.0036.231214T0309Z-231214T1800Z/

...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...A period of stagnant air with light winds is expected. * WHERE...South Willamette Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Air stagnation could result in the development and persistence of poor air quality. Air Stagnation Advisory 2023-12-13T12:38:00-08:00 2023-12-17T10:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.CAN.KPQR.FG.Y.0029.000000T0000Z-231213T2100Z/ /O.EXT.KPQR.AS.Y.0004.000000T0000Z-231217T1800Z/

...AIR STAGNATION ADVISORY IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...Stagnant air is expected, which may lead to deteriorating air quality. * WHERE...Valleys of southern Oregon and northern California. * WHEN...Until 10 AM PST Saturday. * IMPACTS...Air stagnation is likely to result in diminishing Air Stagnation Advisory 2023-12-13T11:30:00-08:00 2023-12-16T10:00:00-08:00 Actual Alert Met Expected Minor Likely Central Douglas County; Central and Eastern Lake County; Curry County Coast; Eastern Curry County and Josephine County; Eastern Douglas County Foothills; Jackson County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Siskiyou Mountains and Southern Oregon Cascades; South Central Oregon Coast FIPS6 041011 041015 041019 041029 041033 041035 041037 UGC ORZ021 ORZ022 ORZ023 ORZ024 ORZ025 ORZ026 ORZ028 ORZ029 ORZ030 ORZ031 VTEC /O.NEW.KMFR.AS.Y.0004.231213T1930Z-231216T1800Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ FRIDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. * WHERE...Portions of south central, southwest and west central Idaho and northeast and southeast Oregon. Air Stagnation Advisory 2023-12-13T09:47:00-08:00 2023-12-15T22:00:00-08:00 Actual Alert Met Expected Minor Likely Baker County; Harney County; Malheur County; Oregon Lower Treasure Valley FIPS6 041001 041025 041045 UGC ORZ061 ORZ062 ORZ063 ORZ064 VTEC /O.CON.KBOI.AS.Y.0005.000000T0000Z-231216T0600Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST /10 PM PST/ FRIDAY... * WHAT...An extended period of stagnant air, with light winds and little vertical mixing. * WHERE...Portions of south central, southwest and west central Idaho and northeast and southeast Oregon. Air Stagnation Advisory 2023-12-13T04:43:00-08:00 2023-12-15T22:00:00-08:00 Actual Alert Met Expected Minor Likely Baker County; Harney County; Malheur County; Oregon Lower Treasure Valley FIPS6 041001 041025 041045 UGC ORZ061 ORZ062 ORZ063 ORZ064 VTEC /O.CON.KBOI.AS.Y.0005.000000T0000Z-231216T0600Z/

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Visibility less than a quarter of a mile in dense fog. * WHERE...Southwest Interior, Tacoma Area, Hood Canal Area, Seattle and vicinity and Bremerton and vicinity. * WHEN...Until 10 AM PST Wednesday. Dense Fog Advisory 2023-12-13T04:12:00-08:00 2023-12-13T10:00:00-08:00 Actual Alert Met Expected Minor Likely Bremerton and Vicinity; Hood Canal Area; Seattle and Vicinity; Southwest Interior; Tacoma Area FIPS6 053031 053033 053035 053041 053045 053053 053067 UGC WAZ504 WAZ509 WAZ511 WAZ558 WAZ559 VTEC /O.CON.KSEW.FG.Y.0005.000000T0000Z-231213T1800Z/

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Foothills of the Southern Blue Mountains of Oregon and North Central Oregon. * WHEN...Until noon PST Wednesday. * IMPACTS...Hazardous driving conditions due to low visibility. Dense Fog Advisory 2023-12-13T02:40:00-08:00 2023-12-13T12:00:00-08:00 Actual Alert Met Expected Minor Likely Foothills of the Southern Blue Mountains of Oregon; North Central Oregon FIPS6 041021 041049 041055 041065 UGC ORZ508 ORZ510 VTEC /O.CON.KPDT.FG.Y.0021.000000T0000Z-231213T2000Z/

...AIR STAGNATION ADVISORY IN EFFECT UNTIL 10 AM PST FRIDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...For the Air Stagnation Advisory, a period of stagnant air with light winds is expected. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. Dense Fog Advisory 2023-12-13T01:40:00-08:00 2023-12-13T10:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.NEW.KPQR.AS.Y.0004.231213T0940Z-231215T1800Z/ /O.CON.KPQR.FG.Y.0029.000000T0000Z-231213T1800Z/

...AIR STAGNATION ADVISORY IN EFFECT UNTIL 10 AM PST FRIDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...For the Air Stagnation Advisory, a period of stagnant air with light winds is expected. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. Air Stagnation Advisory 2023-12-13T01:40:00-08:00 2023-12-15T10:00:00-08:00 Actual Alert Met Expected Minor Likely South Willamette Valley FIPS6 041003 041039 041043 UGC ORZ008 VTEC /O.NEW.KPQR.AS.Y.0004.231213T0940Z-231215T1800Z/ /O.CON.KPQR.FG.Y.0029.000000T0000Z-231213T1800Z/

Patchy dense fog has developed in central Oregon this evening, most evident along the US-97 corridor between Sunriver and Redmond. Visibilities as low as a quarter of a mile or less have been observed in the Bend metropolitan region. Temperatures range from just below to just above freezing in Bend, Redmond, and Prineville, so patchy slick spots may occur in any areas of Special Weather Statement 2023-12-12T20:27:00-08:00 2023-12-13T01:00:00-08:00 Actual Alert Met Expected Minor Observed Central Oregon FIPS6 041017 041031 UGC ORZ511 VTEC