Updated: 7:00 PM PST on November 20, 2014
Overcast with snow, then a chance of snow in the afternoon. High of 36F. Winds less than 5 mph. Chance of snow 90%.
Overcast with a chance of snow, then a chance of snow after midnight. Fog overnight. Low of 28F. Winds less than 5 mph. Chance of snow 60%.
Overcast with a chance of snow and rain, then rain in the afternoon. Fog early. High of 39F. Winds less than 5 mph. Chance of precipitation 90% .
Overcast with rain. Low of 34F with a windchill as low as 28F. Winds from the SSE at 5 to 10 mph. Chance of rain 100% with rainfall amounts near 0.6 in. possible.
Overcast with a chance of snow and rain in the morning, then mostly cloudy with a chance of snow and a chance of rain. Fog early. High of 41F. Breezy. Winds from the SW at 15 to 20 mph. Chance of snow 70%.
Mostly cloudy with a chance of snow and a chance of rain in the evening, then overcast with a chance of snow. Low of 30F. Winds from the SW at 5 to 15 mph. Chance of snow 60%.
Overcast with snow. High of 36F with a windchill as low as 25F. Winds from the SSW at 5 to 10 mph. Chance of snow 70%.
Overcast with a chance of snow. Low of 28F. Winds less than 5 mph. Chance of snow 50% with accumulations up to 1 in. possible.
Overcast with a chance of snow and rain showers, then a chance of rain in the afternoon. High of 37F. Winds less than 5 mph. Chance of precipitation 40% .
Mostly cloudy. Low of 27F. Winds less than 5 mph.
Overcast with a chance of snow. Fog early. High of 36F. Winds less than 5 mph. Chance of snow 50%.
Overcast. Fog overnight. Low of 28F. Winds less than 5 mph.
Mostly cloudy. Fog early. High of 39F. Winds less than 5 mph.
Mostly cloudy. Fog overnight. Low of 21F. Winds less than 5 mph.
Mostly cloudy. Fog early. High of 36F. Winds from the SSW at 5 to 10 mph.
Mostly cloudy. Fog overnight. Low of 28F. Winds less than 5 mph.
Mostly cloudy. Fog early. High of 32F. Winds less than 5 mph.
Mostly cloudy. Fog overnight. Low of 21F. Winds less than 5 mph.
Partly cloudy. Fog early. High of 27F. Winds less than 5 mph.
Partly cloudy. Fog overnight. Low of 21F. Winds less than 5 mph.
Mostly cloudy. Fog early. High of 27F. Winds less than 5 mph.
Mostly cloudy. Fog overnight. Low of 23F. Winds less than 5 mph.
Clear. Fog early. High of 27F. Winds less than 5 mph.
... Winter Storm Warning in effect from noon Friday to 6 PM PST
Saturday above 4000 feet...
The National Weather Service in Spokane has issued a Winter Storm
Warning above 4000 feet for heavy snow... which is in effect from
noon Friday to 6 PM PST Saturday. The Winter Storm Watch is no
longer in effect.
* Locations... schweitzer Mountain Road... flowery trail Road.
* Snow level... snow will initially reach valley floors Friday
afternoon with minor accumulations. Snow levels will rise
Friday night to 3000 feet but may stay on valley floors near the
* Snow accumulations... 8 to 15 inches above 4000 feet. Valley
snow accumulations especially near the Canadian border could
reach 1 to 3 inches by Saturday morning.
* Timing... steady snow will begin Friday afternoon and continue
through much of Saturday.
* Impacts... snow covered roads will make travel difficult or
impossible over higher elevation roadways.
* Hazard elevation... above 4000 feet.
* Web page: for a detailed view of the hazard area visit
A Winter Storm Warning for heavy snow means significant amounts
of snow are expected or occurring. Snow accumulations will make
travel very hazardous or impossible.
... Air stagnation advisory remains in effect until noon PST
* air quality... light winds and stable conditions will increase
the potential for the build up of pollutants near the surface.
* Timing... continuing through noon Friday.
* Counties included... boundary... Bonner... Kootenai... Benewah...
Shoshone... Okanogan... Ferry... Stevens... Pend Oreille...
Chelan... Douglas... Grant... Lincoln... Adams... Spokane...
Whitman... Garfield... and Asotin counties.
* Communities included... Bonners Ferry... Sandpoint... Coeur
D'Alene... Kellogg... St Maries... Spokane... Colville... Republic
... Grand Coulee... Moses Lake... Wenatchee... and Waterville.
* 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.
Personal Weather Stations [Add your weather station!]
Location: Sandpoint U of I, Sandpoint, ID
Updated: 5:50 PM PST
|Temperature: 31.5 °F||Dew Point: -||Humidity: 88%||Wind: SSW at 2.0 mph||Pressure: 27.73 in||Hourly Precipitation: -||Windchill: 32 °F||Graphs|
Location: MesoWest SAMUEL ID US UPR, Sandpoint, ID
Updated: 4:25 PM PST
|Temperature: 32 °F||Dew Point: -||Humidity: -||Wind: Calm||Pressure: -||Hourly Precipitation: 0.00 in||Windchill: 32 °F||Graphs|
Location: Selle Valley, Sandpoint, ID
Updated: 5:59 PM PST
|Temperature: 29.2 °F||Dew Point: 28 °F||Humidity: 95%||Wind: Calm||Pressure: 30.14 in||Hourly Precipitation: 0.00 in||Windchill: 29 °F||Graphs|
Location: Solar Roadways, Sagle, ID
Updated: 5:57 PM PST
|Temperature: 30.6 °F||Dew Point: 30 °F||Humidity: 97%||Wind: Calm||Pressure: 30.10 in||Hourly Precipitation: 0.00 in||Windchill: 31 °F||Graphs|
Location: Sagle near Round Lake, Sagle, ID
Updated: 5:55 PM PST
|Temperature: 30.4 °F||Dew Point: 29 °F||Humidity: 95%||Wind: Calm||Pressure: 30.11 in||Hourly Precipitation: 0.00 in||Windchill: 30 °F||Graphs|
Location: Cocolalla, ID KG7CSG, Cocolalla, ID
Updated: 5:45 PM PST
|Temperature: 31.1 °F||Dew Point: 28 °F||Humidity: 89%||Wind: Calm||Pressure: 30.01 in||Hourly Precipitation: 0.00 in||Windchill: 31 °F||Graphs|
Location: East River, Priest River, ID
Updated: 5:09 PM PST
|Temperature: 33.1 °F||Dew Point: 29 °F||Humidity: 84%||Wind: Calm||Pressure: 30.17 in||Hourly Precipitation: 0.00 in||Windchill: 33 °F||Graphs|
Updated: 5:05 PM PST
|Temperature: 29 °F||Dew Point: -||Humidity: -||Wind: Calm||Pressure: -||Hourly Precipitation: 0.00 in||Windchill: 29 °F||Graphs|
Updated: 4:10 PM PST
|Temperature: 30 °F||Dew Point: -||Humidity: -||Wind: Calm||Pressure: -||Hourly Precipitation: 0.00 in||Windchill: 30 °F||Graphs|
Location: 4300' above Sandpoint, ID
Updated: 4:50 PM AKST
|Temperature: 23.1 °F||Dew Point: 22 °F||Humidity: 95%||Wind: West at 6.0 mph||Pressure: 29.99 in||Hourly Precipitation: 0.00 in||Windchill: 16 °F||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Area forecast discussion National Weather Service Spokane Washington 345 PM PST Thursday Nov 20 2014 Synopsis... a relatively quiet and cool overnight period with a few snow showers over the north will give way to a sharp deterioration in the weather on Friday as a strong and moist Pacific storm brings valley rain and mountain snow Friday night followed by very windy conditions on Saturday. An active and periodically wet weather regime will continue through the next week. && Discussion... tonight...a rather mushy but somewhat benign night is in store fro the region. Satellite and radar indicate the exiting storm band that brought light snow to the region on track to move off to the east early this evening. Meanwhile the next minor trough is diving into California with a weak northern branch wave scuttling into southern British Columbia. Models suggest a weak and shearing wave will exist between these two dynamic centers and will transit the region tonight...but the weakening nature of this system should bring little beyond a few snow showers concentrated over the northeastern zones late tonight. Once again fog and the potential fro some freezing drizzle will exist in the deep basin where stubborn Arctic air is pooling in these low elevations. Friday through Saturday...latest models are in good agreement and consistent with bringing a very moist and very dynamic wave through the region during this period. A strong warm front will make short work of the leftover and now modified Arctic air over the eastern half of the forecast area with snow levels expected to rise to the 4000 foot region. In the west the cold air will be slower to scrub and snow levels will stay low through much of this event...perhaps all of it in the northern Cascade valleys and the Okanogan Valley. Snow levels will rise...but not as aggressively over the southern portions of the deep basin...leading to the likelihood of at least minimal warning criteria accumulating snow on the Waterville Plateau. The southern valleys such as the Wenatchee River Valley will see some snow but amounts will be overall fairly light. The Cascade mountains above 3000 to 4000 feet will get hammered with snow with a 12 hour period of moist isentropic lift augmented by upslope southeasterly low level flow. All the existing winter storm watches will be upgraded to warnings with the afternoon package...as well as adding the Okanogan and Waterville Plateau to the highlight mix. Beginning Friday morning the isentropic moistening process will promote increasing clouds...with light snow beginning over the northern zones in the early afternoon. By Friday evening an almost Universal field of valley rain and mountain snow will envelop the region...except for the aforementioned north Cascades/Okanogan where snow will continue as the dominant meteor. A strong cold front will rip through the region Saturday morning largely ending precipitation in the Cascades Lee but promoting enhanced upslope snow showers into the Idaho Panhandle mountains. The big story on Saturday will be very windy conditions especially over the eastern basin exposed terrain with gust potential picked off of model sounding mixed layers up to 45 or 50 mph. Saturday will be a well mixed day with much milder temperatures than we have grown accustomed to. /Fugazzi Saturday night through Monday night: in the wake of saturday's cold front, the breezy afternoon winds will gradually subside overnight. Don't see a great push of dry air behind this front. We should have clearing skies in most places. This will allow temperatures to drop sharply, especially in the northern valleys. Then fog and stratus will form overnight and persist into Sunday morning. The northwesterly flow is very unstable so the Panhandle mountains will continue to pile up snow Saturday night. By Sunday, another Pacific system will quickly clip across the area. Due to the strong westerly flow, the Cascades and Panhandle will be favored with this system. Spokane Metro area could see a little snow Sunday morning but will change to rain in the afternoon. Confidence is much lower for monday's event. The models really diverge from each other on track and timing so I have about as much chance of being wrong as right on the forecast. Went with likely wording for the Cascades/Panhandle and chance wording elsewhere. As usual, Highway 2/I-90 will be the dividing line between rain and snow. Rj Tuesday through thanksgiving: this portion of the forecast is quite complicated, which is important because it envelops one of the busiest travels days of the year. Unfortunately, the models are having a hard time coming to some agreement, which makes this, unfortunately, a low confidence forecast. There is some higher confidence for Tuesday, as a shortwave traversed the region in northwest flow. This will bring better chances of precipitation to the Cascades, and the higher terrain of northeast Washington and the Idaho Panhandle. It was happens after Tuesday where things get all mucked up. The Euro model has stuck to its GUNS, carving out a larger trough over much of the US, keeping the inland northwest on the western edge of the cold air mass. The GFS keeps any influence of the cold air mass well to the east, instead building a ridge of high pressure over the region. This ridge is more amplified than it's previous solutions. So, all in all, we didn't stray much from the previous forecasts, which weighted towards the more consistent solution (colder). While this would bring snow levels into the valleys, the north-northwesterly flow does not look like it will have a ton of moisture to work with. Lots of fine-tuning will be made to this portion of the forecast for sure. TY && Aviation... 00z tafs: MVFR ceilings and vis will be common over the region through tonight as a moist boundary layer and light winds exists under a strong low level inversion...with IFR conditions likely redeveloping mainly at the kmwh and kgeg vicinity taf sites overnight. On Friday an approaching Pacific storm system will spread thickening clouds over the region as a warm front develops. MVFR ceilings will probably remain common across the Columbia Basin except fro klws where VFR conditions are expected. Light snow or rain may begin at the keat taf site during the afternoon. /Mjf && Preliminary point temps/pops... Spokane 28 37 36 43 30 40 / 20 30 100 30 20 60 Coeur D'Alene 30 39 36 42 31 39 / 30 50 100 50 30 70 Pullman 29 41 36 43 34 42 / 10 10 100 70 40 60 Lewiston 32 44 40 48 36 47 / 10 10 100 70 30 50 Colville 25 37 34 44 20 38 / 30 70 100 50 10 60 Sandpoint 29 37 35 41 29 37 / 50 70 100 70 30 70 Kellogg 31 37 36 39 32 36 / 40 50 100 80 60 80 Moses Lake 24 36 35 48 30 46 / 10 50 100 10 10 30 Wenatchee 30 35 35 47 34 45 / 10 80 100 10 10 40 Omak 30 35 33 45 27 39 / 10 90 100 20 10 40 && Otx watches/warnings/advisories... Idaho...air stagnation advisory until noon PST Friday for central Panhandle mountains-Coeur D'Alene area-Idaho Palouse- northern Panhandle. Winter Storm Warning from noon Friday to 6 PM PST Saturday for northern Panhandle. Winter Storm Warning from noon Friday to 6 am PST Sunday for central Panhandle mountains. Washington...air stagnation advisory until noon PST Friday for east slopes northern Cascades-lower Garfield and Asotin counties-Moses Lake area-northeast mountains-Okanogan Highlands-Spokane area-upper Columbia Basin-Washington Palouse-Waterville Plateau-Wenatchee area. Winter Storm Warning from noon Friday to 6 am PST Saturday for east slopes northern Cascades-Okanogan Highlands-Okanogan Valley-Waterville Plateau. Winter Storm Warning from noon Friday to 6 PM PST Saturday for northeast mountains. && $$