Updated: 3:06 PM PST on November 26, 2015
Clear. Patchy valley fog near the BC border. Lows 7 to 13.
Sunny. Highs in the lower to mid 30s.
Clear. Areas of valley fog. Lows 12 to 15.
Sunny. Highs in the mid to upper 30s.
Mostly clear. Patchy fog overnight. Lows 14 to 17.
Mostly clear. Patchy fog. Highs in the lower to mid 30s. Lows 17 to 25.
Partly sunny with a 20 percent chance of snow. Patchy fog. Highs in the lower to mid 30s.
Mostly cloudy with a 30 percent chance of snow. Lows in the upper 20s to lower 30s.
Mostly cloudy with a 50 percent chance of rain or snow. Highs in the mid to upper 30s.
... Air stagnation advisory remains in effect from 9 PM this
evening to noon PST Monday...
* air quality... poor ventilation will result in a build up of
pollutants near the surface. Mountain valleys will be
especially susceptible to stagnant air and pollution build up.
Light northeasterly winds across the basin will also tend to
push pollutants up against the east slopes of the northern
Cascades between Thursday and Saturday. These winds will
become calm by Sunday with a greater risk of pollutant build
up over much of the region by this time.
* Timing... Thursday night through Monday morning.
* Impacts... prolonged periods of stagnant air can hold fine
particulates close to the ground and degrade air quality.
An air stagnation advisory indicates that due to limited movement
of an air mass across the advisory area... pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.
During periods of stagnant air... state air quality agencies
highly recommended that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies... prolonged periods of
stagnant air can hold pollutants close to the ground... where
people live and breathe.
Personal Weather Stations [Add your weather station!]
Location: 10th Avenue Colville, Colville, WA
Updated: 6:41 PM PST
|Temperature: 25.3 °F||Dew Point: 16 °F||Humidity: 66%||Wind: Calm||Pressure: 30.63 in||Hourly Precipitation: 0.00 in||Windchill: 25 °F||Graphs|
Location: Colville Mountain, Colville, WA
Updated: 6:43 PM PST
|Temperature: 23.9 °F||Dew Point: 18 °F||Humidity: 79%||Wind: Calm||Pressure: 30.62 in||Hourly Precipitation: 0.00 in||Windchill: 24 °F||Graphs|
Location: ECHO PEAK - W6SQ, Colville, WA
Updated: 6:43 PM PST
|Temperature: 23.2 °F||Dew Point: 22 °F||Humidity: 93%||Wind: North at 1.7 mph||Pressure: 30.61 in||Hourly Precipitation: 0.00 in||Windchill: 23 °F||Graphs|
Location: APRSWXNET, Rice, WA
Updated: 6:15 PM PST
|Temperature: 25 °F||Dew Point: 19 °F||Humidity: 79%||Wind: Calm||Pressure: 30.47 in||Hourly Precipitation: 0.00 in||Windchill: 25 °F||Graphs|
Location: Kettle Falls, WA, Kettle Falls, WA
Updated: 6:32 PM PST
|Temperature: 27.0 °F||Dew Point: 20 °F||Humidity: 74%||Wind: NNE at 9.0 mph||Pressure: 30.48 in||Hourly Precipitation: 0.00 in||Windchill: 18 °F||Graphs|
Location: Waterloo, Rice, WA
Updated: 6:43 PM PST
|Temperature: 18.5 °F||Dew Point: 16 °F||Humidity: 90%||Wind: Calm||Pressure: 27.99 in||Hourly Precipitation: 0.00 in||Windchill: 18 °F||Graphs|
Updated: 6:43 PM PST
|Temperature: 21.0 °F||Dew Point: 20 °F||Humidity: 94%||Wind: NW at 3.8 mph||Pressure: 30.09 in||Hourly Precipitation: 0.00 in||Windchill: 16 °F||Graphs|
Location: 405 E. Lincoln, Chewelah, WA
Updated: 6:39 PM PST
|Temperature: 22.0 °F||Dew Point: 18 °F||Humidity: 85%||Wind: NW at 1.0 mph||Pressure: 30.59 in||Hourly Precipitation: 0.00 in||Windchill: 22 °F||Graphs|
Location: RAWS, Cusick, WA
Updated: 5:55 PM PST
|Temperature: 21 °F||Dew Point: 17 °F||Humidity: 86%||Wind: SW at 2 mph||Pressure: 30.50 in||Hourly Precipitation: 0.00 in||Windchill: 21 °F||Graphs|
Location: Orin-Rice & South Basin, Colville, WA
Updated: 6:42 PM PST
|Temperature: 21.6 °F||Dew Point: 15 °F||Humidity: 76%||Wind: Calm||Pressure: 30.27 in||Hourly Precipitation: -||Windchill: 22 °F||Graphs|
Location: Bodie Mountain, Onion Creek, WA
Updated: 6:43 PM PST
|Temperature: 16.4 °F||Dew Point: 12 °F||Humidity: 83%||Wind: Calm||Pressure: 30.63 in||Hourly Precipitation: -||Windchill: 16 °F||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Area forecast discussion National Weather Service Spokane Washington 327 PM PST Thursday Nov 26 2015 Synopsis... chilly temperatures and clear skies are expected through at least Friday as strong high pressure builds over the Pacific northwest. Light winds and a strengthening inversion will increase the potential for air stagnation this weekend. We will also have the potential for areas of fog and low clouds over the weekend into early next week. The next chance of precipitation is expected next Wednesday with the arrival of a frontal system. && Discussion... tonight through Mon: the biggest challenge remains determining the areal coverage of stratus (low clouds) and lake fog the next few nights. We simply tried to re-introduce low clouds in the areas that had coverage this morning... but modified slightly. The most persistent stratus should be along the highways 2 and 95 corridor in boundary and Bonner counties Idaho. Patchy low clouds were also added to Priest Lake, and also kept patchy fog for Lake Chelan and Lake Wenatchee. It's interesting that the NAM is producing light amnts of pcpn mainly Sat nt and sun nt across the cntrl part of the Columbia Basin. No other guidance is doing this. The NAM fcst soundings also show a sufficiently deep saturated sfc lyr (with a dry dendritic layer aloft) to produce snow grains for the above- mentioned nights. We did not put any pcpn in the fcst attm.Bz Monday night through Tuesday night: high pressure will continue to dominate over the inland northwest. Little air movement and large scale subsidence will result in stagnant conditions. There is a good chance that little will change in air quality across the region. Slightly higher dew point temperatures will result in a higher probability for fog or low stratus early next week. Best chances for fog will be in the mountain valleys and across the western portion of the basin. Wednesday through thursday: models show reasonable consistency in showing the ridge breaking down around this time. Energy pushing in off of the Pacific looks to split or weaken as it impinges upon the upper level ridge of higher pressure. This will assuredly result in light amounts of precip as lift will be weak, and models also show little in the way of moisture. The main impact to watch out for will be for the potential of a mixture of snow and freezing precip. Temperatures will likely remain around freezing as the first bit of moisture pushes in. With how weak the energy looks to be, it will likely do little to mix up the lower atmosphere. Weak easterly winds will result in better mixing potential for the southeast portion of the region. Where mixing will have a harder time occurring, and where mixed precip will be more likely, will be over the western basin and into the valleys of the east slopes of the northern Cascades and across the northern mountains. With that said, confidence is still too low to add a mention of freezing precip to the forecast, but best potential would be from the Wednesday morning through the Thursday morning portion of the extended forecast. /Svh && Aviation... 00z tafs: strong high pressure will produce clear skies over the inland northwest for at least the next 24 to 36 hours. VFR conditions are expected at all airports this Thanksgiving Holiday. && Preliminary point temps/pops... Spokane 15 30 18 32 17 32 / 0 0 0 0 0 0 Coeur D'Alene 14 31 18 33 19 32 / 0 0 0 0 0 0 Pullman 15 31 17 32 18 33 / 0 0 0 0 0 0 Lewiston 18 33 20 33 22 33 / 0 0 0 0 0 0 Colville 12 34 13 37 16 34 / 0 0 0 0 0 0 Sandpoint 17 31 18 34 17 33 / 0 0 0 0 0 0 Kellogg 14 32 13 34 18 33 / 0 0 0 0 0 0 Moses Lake 14 32 17 33 18 33 / 0 0 0 0 0 0 Wenatchee 20 33 19 33 21 34 / 0 0 0 0 0 0 Omak 17 33 16 35 17 33 / 0 0 0 0 0 0 && Otx watches/warnings/advisories... Idaho...air stagnation advisory from 9 PM this evening to noon PST Monday for central Panhandle mountains-Coeur D'Alene area- Idaho Palouse-Lewis and southern Nez Perce counties- Lewiston area-northern Panhandle. Washington...air stagnation advisory from 9 PM this evening to noon PST Monday for east slopes northern Cascades-lower Garfield and Asotin counties-Moses Lake area-northeast Blue Mountains- northeast mountains-Okanogan Highlands-Okanogan Valley- Spokane area-upper Columbia Basin-Washington Palouse- Waterville Plateau-Wenatchee area. && $$