Area Forecast Discussion
Issued by NWS Spokane, WA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS66 KOTX 130730
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1130 PM PST Tue Dec 12 2017

.SYNOPSIS...
Strong high pressure will persist through Thursday night except
for a weak wave tonight into early Wednesday which may bring snow
flurries to the region. The lowlands of eastern Washington and
north Idaho will continue to be covered by low clouds. Chances
for light wintry precipitation increase Friday with snow over
northeast Washington and north Idaho and a chance of a wintry mix in
the Upper Columbia Basin and near the foothills of the Blue
Mountains. Drier weather returns over the weekend before the next
system arrives next Tuesday.


&&

.DISCUSSION...
Quick update to tonight`s forecast. Weak system moving across the
area above our low stratus could produce a little bit of snow
tonight across our northern counties. I`ve increased PoPs based on
radar and satellite. This system will move into the Panhandle by
sunrise Wednesday. I`ve got about a 1/4 inch of snow from the
Methow across to the central Panhandle, including Spokane.  RJ

&&

.AVIATION...
06Z TAFS: Tonight a weak upper level disturbance moves across the
area which could squeeze out some light snow flurries, mainly for
KGEG, KSFF, and KCOE. Anything that does fall is expected to be
light and brief with little to no accumulation. Ceilings remain
low for most sites. KLWS has managed to stay out of the stratus
deck though increasing mid level moisture will likely bring mid
level clouds through the morning. KLWS and KPUW have the potential
to move in and out of the stratus deck. /bw


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        24  29  24  30  25  31 /  10  20  10  10   0  60
Coeur d`Alene  26  30  24  32  25  32 /  10  30   0   0   0  60
Pullman        24  30  24  34  25  36 /   0  10   0   0   0  60
Lewiston       28  33  27  33  28  39 /   0  10   0   0   0  60
Colville       28  31  26  32  27  32 /  20  30   0   0   0  30
Sandpoint      24  31  22  32  23  31 /   0  30   0   0   0  60
Kellogg        25  28  24  31  25  34 /   0  50   0   0   0  70
Moses Lake     28  33  28  33  28  33 /   0   0   0   0   0  10
Wenatchee      27  30  28  31  28  34 /   0  10  10  10   0  10
Omak           28  32  28  33  28  32 /  40   0   0   0   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Air Stagnation Advisory until 10 AM PST Friday for Central
     Panhandle Mountains-Coeur d`Alene Area-Idaho Palouse-Lewis
     and Southern Nez Perce Counties-Lewiston Area-Northern
     Panhandle.

WA...Air Stagnation Advisory until 10 AM PST Friday 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.


&&

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.