Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 140537
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
937 PM PST SAT FEB 13 2016

.SYNOPSIS...
Rain and mountain snow will spread into eastern Washington and
north Idaho tonight. Accumulating snow will likely impact travel
over Lookout Pass on Interstate 90 tonight as well as Stevens Pass
on Highway 2 over the Cascades. Snow levels will rise Sunday night
into Monday and temperatures will seem more like early April than
mid February. Many locations will experience highs in the 50s to
low 60s on Monday and Tuesday. More wet weather will arrive for
middle to late week with occasionally windy conditions.


&&

.DISCUSSION...
Evening update to lower PoPs along the Cascade crest as the main
plume of moisture has dropped south into western Oregon, at least
for the next few hours. We could still see some scattered showers
overnight but the main area of precipitation will be across
extreme eastern WA and the Idaho panhandle overnight. Min
temperatures have also been adjusted lower for the northern
Cascades where satellite imagery shows some breaks in the cloud
cover. The higher cloud shield associated with the atmospheric
river heading toward the WA coast should fill in the gaps in the
cloud cover in a few hours so we are not expecting temperatures to
fall much more than where they are now. Snow continues to fall
over the central panhandle of Idaho this evening with area webcams
showing a couple of inches already falling. Snow levels are around
3500 to 4000 ft so no changes made to the ongoing winter weather
advisory for IDZ04. /Kelch

&&

.AVIATION...
06Z TAFS: Warm frontal precipitation will continue across eastern
Washington and north Idaho tonight. A strong mid- level westerly
wind has produced a rain shadow east of the Cascades limiting
rain amount for Wenatchee, Moses Lake, and Omak. The wet ground
may be sufficient to produce fog in Wenatchee. Farther east,
Spokane, Coeur d`Alene, and Pullman will continue to see light
rain through 08-10Z Odds are good that some low stratus will
develop following the rain, and possibly some fog. For now, it
looks like there will be enough wind to limit fog development.
Expect another round of rain with VFR/MVFR cigs late Sunday
morning into the afternoon as a warm front pushes in from the
south. /EK


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        36  47  42  53  41  53 /  70  60  30  20  20  20
Coeur d`Alene  36  46  41  52  41  51 /  70  60  70  60  20  30
Pullman        35  50  44  56  43  55 /  70  60  70  30  10  20
Lewiston       41  55  47  63  45  61 / 100  60  60  20  10  10
Colville       34  42  37  51  40  50 /  70  60  30  30  30  20
Sandpoint      34  41  37  49  40  47 /  90  60  70  60  50  40
Kellogg        33  40  38  46  39  45 / 100  80 100  90  70  40
Moses Lake     37  51  43  60  42  57 /  60  20  10   0  10  10
Wenatchee      34  47  39  56  41  54 /  60  10  10  10  10  10
Omak           33  40  35  48  36  50 /  60  20  10  10  10  20

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Winter Weather Advisory until 10 AM PST Sunday for Central
     Panhandle Mountains.

WA...Air Stagnation Advisory until 10 AM PST Tuesday for East Slopes
     Northern Cascades-Okanogan Valley.

&&

$$


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