Updated: 7:00 AM PST on December 18, 2014
Overcast with a chance of snow and a chance of rain. High of 39F. Winds from the South at 5 to 10 mph. Chance of snow 40%.
Overcast with a chance of rain, then rain after midnight. Fog overnight. Low of 34F. Winds from the SSE at 5 to 10 mph. Chance of rain 80%.
Overcast with rain. High of 39F. Winds from the SSW at 10 to 15 mph. Chance of rain 90%.
Overcast with a chance of snow after midnight. Fog overnight. Low of 30F. Winds from the South at 5 to 10 mph. Chance of snow 70%.
Overcast with a chance of snow and rain, then rain in the afternoon. High of 41F. Winds from the South at 10 to 15 mph. Chance of precipitation 80% .
Overcast with a chance of rain. Low of 37F. Winds from the South at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 0.4 in. possible.
Overcast with a chance of rain. High of 46F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.
Overcast in the evening, then mostly cloudy. Fog overnight. Low of 36F. Winds from the WSW at 5 to 10 mph.
Overcast in the morning, then mostly cloudy. High of 43F. Winds from the WSW at 5 to 10 mph.
Mostly cloudy. Low of 30F. Winds less than 5 mph.
Mostly cloudy. High of 39F. Winds less than 5 mph.
Mostly cloudy. Low of 30F. Winds less than 5 mph.
Partly cloudy. High of 34F with a windchill as low as 21F. Winds from the North at 5 to 10 mph.
Partly cloudy. Low of 27F with a windchill as low as 19F. Winds from the North at 5 to 10 mph.
Clear. High of 28F. Winds from the North at 5 to 10 mph.
Clear. Low of 16F. Winds less than 5 mph.
Partly cloudy. High of 21F. Winds less than 5 mph.
Partly cloudy. Low of 19F. Winds less than 5 mph.
Mostly cloudy. High of 23F. Winds less than 5 mph.
Mostly cloudy. Fog overnight. Low of 18F. Winds less than 5 mph.
Partly cloudy. Fog early. High of 23F. Winds less than 5 mph.
Clear. Fog overnight. Low of 18F. Winds less than 5 mph.
Personal Weather Stations [Add your weather station!]
Location: Davenport, WA, Davenport, WA
Updated: 1:37 PM PST
|Temperature: 39.4 °F||Dew Point: 38 °F||Humidity: 95%||Wind: South at 2.7 mph||Pressure: 29.75 in||Hourly Precipitation: -||Windchill: 39 °F||Graphs|
Location: RAWS MIDNITE MINE WA US, Wellpinit, WA
Updated: 12:39 PM PST
|Temperature: 34 °F||Dew Point: 33 °F||Humidity: 96%||Wind: Calm||Pressure: -||Hourly Precipitation: 0.01 in||Windchill: 34 °F||Graphs|
Location: Malloy Prairie, Cheney, WA
Updated: 1:40 PM PST
|Temperature: 39.9 °F||Dew Point: 39 °F||Humidity: 97%||Wind: Calm||Pressure: 29.92 in||Hourly Precipitation: 0.00 in||Windchill: 40 °F||Graphs|
Location: Four Mound Prairie, Reardan, WA
Updated: 1:40 PM PST
|Temperature: 39.4 °F||Dew Point: 36 °F||Humidity: 88%||Wind: Calm||Pressure: 30.45 in||Hourly Precipitation: 0.00 in||Windchill: 39 °F||Graphs|
Updated: 12:15 PM PST
|Temperature: 40 °F||Dew Point: 40 °F||Humidity: 100%||Wind: South at 3 mph||Pressure: -||Hourly Precipitation: 0.00 in||Windchill: 40 °F||Graphs|
Location: Seven Bays, Seven Bays, WA
Updated: 1:37 PM PST
|Temperature: 39.6 °F||Dew Point: 36 °F||Humidity: 89%||Wind: Calm||Pressure: 30.03 in||Hourly Precipitation: 0.00 in||Windchill: 40 °F||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Area forecast discussion National Weather Service Spokane Washington 939 am PST Thursday Dec 18 2014 Synopsis... a more active weather pattern will continue through the end of the week with periods of light snow in the mountains...and rain or snow in the valleys. Lower elevations from Interstate 90 south will see mainly rain...while areas in the Cascades and near the Canadian border will remain mainly snow. A much stronger weather system over the weekend will usher in warmer temperatures with sharply rising snow levels...as well as the potential for windy conditions. && Discussion... today through Friday night...a weak cold front and accompanying trough is moving through the forecast early this morning and will be followed by a weak ridge of high pressure today. Radar is indicating rain and snow showers across the east and southeast zones this morning as the front moves out of the area. Road temperatures are warm enough that any snow that does fall should melt. The exception will be over Lookout Pass where they could get an inch or two through the early morning. Up-sloping flow will keep rain and snow showers across the Panhandle through the day with light accumulations expected, otherwise we should see a brief break in the weather today. Expect areas of fog and stratus to linger over the lower elevations and northern valleys through the morning. As mentioned above the break will be brief as another wet weather system will move in off the Pacific tonight and track across the forecast area on Friday. Moisture is plentiful with pwat's rising to almost 200 percent of normal. South-southeast lower level flow overnight will overcome the shadow effect off the Cascades and all areas will see measurable precipitation. The cold front will track across the region during the day Friday and result in a drying trend from west to east Friday afternoon. This same southerly flow will allow warm air to rapidly advect into the region through the night. So we are expecting mainly valley rain and mountain snow. The challenge is the cooler air in the Cascade valleys...chiefly the Methow Valley and the Okanogan Valley. Model guidance has been to cool in these valleys the past few days and it looks like the 00z runs are following that trend. That does not mean that these valleys will not see snow, just possibly not as much as expected. This could easily result in a busted forecast for these valleys. For now it looks like the Methow Valley will pick up 1-3 inches of snow. The current models sure want to scour out the remainder of the valleys and the Waterville Plateau as the warm air move through the area. These areas could still pick up 1-2 inches above 1500-2000 feet before turning over to rain. For the mountains 2-5 inches are likely with a few inches more up near the crest of the Cascades. For the Wenatchee valley and along the Columbia River across to Spokane and Coeur D'Alene the precipitation could start as wet snow or a rain/snow mix before turning over to all rain through the night. Some showers will linger across the Cascade crest and up-sloping into the Panhandle will keep a pretty good chance of rain and snow showers Friday night. Otherwise expect drier conditions for the remainder of the forecast area. Tobin Saturday through Sunday night...one very wet period. An atmospheric river will take aim on the Pacific northwest. The GFS and European model (ecmwf) show agreement of moderate isentropic lift spreading across the region Saturday morning with a stream of plentiful moisture for most of the weekend. Pwats of over an inch pool off the coast with up to 0.75" of inch making it east of the Cascades. Again precipitation type will be tricky. Snow levels will be stubborn in the northern valleys, especially in the Cascade valleys where some light to moderate snow is possible. Warming increases Saturday night into Sunday, making it a mainly rain/High Mountain snow event by Sunday afternoon. In this transition, there is a small chance of a wintry mix with pockets of freezing rain in a few of the Cascade valleys. The 850mb 0c line pushes to the Canadian border on Sunday. Sunday appears to be the warmest day with widespread 40s and a few 50s possible. Quantitative precipitation forecast looks juicy with a 0.25" to 0.40" possible from Saturday afternoon into Sunday morning. Gusty winds will increase Saturday night into Sunday evening with speeds 25-40 kts across the Columbia Basin. Gusty winds will continue in the mountains through night, especially in the Cascades. Monday through Wednesday...a cold front slides through the region early Monday allowing the atmospheric river to sag southward and cooler drier air to filter in from the north. The bulk of the precipitation will continue to be found near the Cascade crest and central Panhandle mountains through Monday through Monday evening and then gradually taper off. A few lingering showers are possible by early Monday morning across the northern mountains, but for the most part partial clearing can be expected will allow temperatures to cool late Monday night and into Tuesday. With the northwest flow aloft, a disturbance is expected to drop down from the Gulf of Alaska. In the 00z model runs this feature looks to swing wide and drops west and south of the region, with the main brunt of the precipitation found across Oregon. Opted to continue a drier forecast through mid week with the best chance of snow falling near the Cascade crest, Blue Mountains and central Panhandle mountains. / Rfox. && Aviation... 18z tafs: a saturated boundary layer north and west of kpuw will result in widespread IFR/MVFR stratus over the Columbia Basin, Spokane/Coeur D'Alene area extending north to the Canadian border and west into the Cascade crest. The stratus should lift a bit into the afternoon per forecast soundings. A drier boundary layer over kpuw/klws will lead to continued VFR conditions. The next weather system will spread -ra across the taf sites overnight into Friday morning with a mix of IFR and MVFR conditions. Jw && Preliminary point temps/pops... Spokane 40 36 40 32 39 37 / 30 40 90 10 80 90 Coeur D'Alene 40 34 40 32 39 37 / 60 20 100 20 70 100 Pullman 42 35 43 31 43 41 / 40 40 90 10 70 90 Lewiston 44 35 46 32 45 44 / 40 20 80 10 50 80 Colville 37 34 38 33 37 36 / 30 60 100 20 80 100 Sandpoint 37 34 37 32 37 36 / 60 40 100 30 60 100 Kellogg 38 32 37 30 37 35 / 70 30 100 40 50 100 Moses Lake 42 36 42 32 40 37 / 10 70 70 10 80 80 Wenatchee 39 33 40 31 38 32 / 10 80 50 10 90 80 Omak 38 33 37 30 35 32 / 20 90 80 10 80 90 && Otx watches/warnings/advisories... Idaho...none. Washington...air stagnation advisory until noon PST Friday for east slopes northern Cascades-Moses Lake area-northeast mountains- Okanogan Highlands-Okanogan Valley-upper Columbia Basin- Waterville Plateau-Wenatchee area. && $$