NOAA Current Watches

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * Air quality...Poor mixing and light winds will keep stagnant conditions in place through Wednesday morning. Pollutants may be trapped near ground level and this will result in reduced air quality at times. The Oregon Department of Environmental Air Stagnation Advisory 2018-11-19T14:16:00-08:00 2018-11-21T04:00:00-08:00 Actual Alert Met Expected Minor Likely Central Douglas County FIPS6 041011 041019 UGC ORZ023 VTEC /O.CON.KMFR.AS.Y.0001.000000T0000Z-181121T1200Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY... * Air quality...Poor mixing and light winds will keep stagnant conditions in place through Tuesday night. Pollutants may be trapped near ground level, resulting in reduced air quality at times. The Oregon Department of Environmental Quality has Air Stagnation Advisory 2018-11-19T14:16:00-08:00 2018-11-21T04:00:00-08:00 Actual Alert Met Expected Minor Likely Eastern Curry County and Josephine County; Eastern Douglas County Foothills; Jackson County FIPS6 041015 041019 041029 041033 UGC ORZ024 ORZ025 ORZ026 VTEC /O.CON.KMFR.AS.Y.0001.000000T0000Z-181121T1200Z/

...SNOW EXPECTED TO RETURN TO THE CASCADES LATE THIS WEEK... As rain and cooler weather return to northwest Oregon and southwest Washington Wednesday and Thursday, snow levels in the Cascades will be dropping. Expect snow levels to lower to around 5500 feet by late Wednesday night, then drop to near pass levels between 4000 to 4500 feet Special Weather Statement 2018-11-19T11:27:00-08:00 2018-11-20T16:00:00-08:00 Actual Alert Met Expected Minor Observed South Washington Cascades FIPS6 053015 053059 UGC WAZ019 VTEC

...SNOW EXPECTED TO RETURN TO THE CASCADES LATE THIS WEEK... As rain and cooler weather return to northwest Oregon and southwest Washington Wednesday and Thursday, snow levels in the Cascades will be dropping. Expect snow levels to lower to around 5500 feet by late Wednesday night, then drop to near pass levels between 4000 to 4500 feet Special Weather Statement 2018-11-19T13:11:00-08:00 2018-11-20T16:00:00-08:00 Actual Alert Met Expected Minor Observed Cascades in Lane County; Northern Oregon Cascades FIPS6 041005 041027 041039 041043 041047 UGC ORZ011 ORZ013 VTEC

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. * TIMING...Today through Wednesday. Air Stagnation Advisory 2018-11-19T11:50:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Eastern Columbia River Gorge of Washington FIPS6 053039 UGC WAZ024 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. * TIMING...Today through Wednesday. Air Stagnation Advisory 2018-11-19T11:50:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Kittitas Valley; Yakima Valley FIPS6 053037 053077 UGC WAZ026 WAZ027 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-19T11:50:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Foothills of the Blue Mountains of Washington; Lower Columbia Basin of Washington FIPS6 053005 053013 053021 053071 UGC WAZ028 WAZ029 VTEC /O.EXP.KPDT.FG.Y.0006.000000T0000Z-181119T2000Z/ /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. * TIMING...Today through Wednesday. Air Stagnation Advisory 2018-11-19T11:50:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Central Oregon; East Columbia River Gorge; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon FIPS6 041017 041021 041031 041049 041055 041059 041065 UGC ORZ041 ORZ507 ORZ508 ORZ510 ORZ511 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-19T11:50:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Lower Columbia Basin of Oregon FIPS6 041049 041059 UGC ORZ044 VTEC /O.EXP.KPDT.FG.Y.0006.000000T0000Z-181119T2000Z/ /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...AIR STAGNATION CONTINUES FOR EASTERN WASHINGTON AND NORTH IDAHO... .Light winds and a strong inversion will persist through Wednesday leading to air stagnation across north Idaho as well as central and eastern Washington. The arrival of light precipitation and a subtle increase in winds Wednesday and Wednesday night may Air Stagnation Advisory 2018-11-19T11:27:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Adams; Asotin; Chelan; Douglas; Ferry; Garfield; Grant; Lincoln; Okanogan; Pend Oreille; Spokane; Stevens; Whitman FIPS6 053001 053003 053007 053017 053019 053023 053025 053043 053047 053051 053063 053065 053075 UGC WAC001 WAC003 WAC007 WAC017 WAC019 WAC023 WAC025 WAC043 WAC047 WAC051 WAC063 WAC065 WAC075 VTEC /O.CON.KOTX.AS.Y.0002.000000T0000Z-181121T2100Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion trapping fog and low Dense Fog Advisory 2018-11-19T02:03:00-08:00 2018-11-19T12:00:00-08:00 Actual Alert Met Expected Minor Likely Foothills of the Blue Mountains of Washington; Lower Columbia Basin of Washington FIPS6 053005 053013 053021 053071 UGC WAZ028 WAZ029 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/ /O.CON.KPDT.FG.Y.0006.000000T0000Z-181119T2000Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-19T02:03:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Eastern Columbia River Gorge of Washington FIPS6 053039 UGC WAZ024 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-19T02:03:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Kittitas Valley; Yakima Valley FIPS6 053037 053077 UGC WAZ026 WAZ027 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion trapping fog and low Air Stagnation Advisory 2018-11-19T02:03:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Foothills of the Blue Mountains of Washington; Lower Columbia Basin of Washington FIPS6 053005 053013 053021 053071 UGC WAZ028 WAZ029 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/ /O.CON.KPDT.FG.Y.0006.000000T0000Z-181119T2000Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion trapping fog and low Dense Fog Advisory 2018-11-19T02:03:00-08:00 2018-11-19T12:00:00-08:00 Actual Alert Met Expected Minor Likely Lower Columbia Basin of Oregon FIPS6 041049 041059 UGC ORZ044 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/ /O.CON.KPDT.FG.Y.0006.000000T0000Z-181119T2000Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-19T02:03:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Central Oregon; East Columbia River Gorge; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon FIPS6 041017 041021 041031 041049 041055 041059 041065 UGC ORZ041 ORZ507 ORZ508 ORZ510 ORZ511 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN THIS MORNING... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion trapping fog and low Air Stagnation Advisory 2018-11-19T02:03:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Lower Columbia Basin of Oregon FIPS6 041049 041059 UGC ORZ044 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/ /O.CON.KPDT.FG.Y.0006.000000T0000Z-181119T2000Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN OVERNIGHT... ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST MONDAY... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... The National Weather Service in Pendleton has issued a Dense Fog Advisory...which is in effect until noon PST Monday. Dense Fog Advisory 2018-11-18T18:59:00-08:00 2018-11-19T12:00:00-08:00 Actual Alert Met Expected Minor Likely Foothills of the Blue Mountains of Washington; Lower Columbia Basin of Washington FIPS6 053005 053013 053021 053071 UGC WAZ028 WAZ029 VTEC /O.NEW.KPDT.FG.Y.0006.181119T0259Z-181119T2000Z/ /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN OVERNIGHT... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-18T18:59:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Eastern Columbia River Gorge of Washington FIPS6 053039 UGC WAZ024 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/

...DENSE FOG ACROSS THE LOWER COLUMBIA BASIN OVERNIGHT... ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY... * AIR QUALITY...A ridge of high pressure will build across the region and produce a low level inversion with light winds. Air quality will slowly degrade over the period. Air Stagnation Advisory 2018-11-18T18:59:00-08:00 2018-11-21T13:00:00-08:00 Actual Alert Met Expected Minor Likely Kittitas Valley; Yakima Valley FIPS6 053037 053077 UGC WAZ026 WAZ027 VTEC /O.CON.KPDT.AS.Y.0003.000000T0000Z-181121T2100Z/