Area Forecast Discussion
Issued by NWS Spokane, WA

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 181757
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
957 AM PST Mon Feb 18 2019

.SYNOPSIS...
Cold and dry weather are expected today and tonight. Another
storm system will bring snow Tuesday through Wednesday with the
potential for heavy snow accumulations over southeastern
Washington and lower Idaho Panhandle. Another round of snow is
possible by the end of the week into the weekend as cold
temperatures persist.

&&

.DISCUSSION...
Rest of Today...No major changes to the inherited forecast are
expected for today. Cloud cover over the northeastern zones has
been upgraded to partly-mostly cloudy with a field of
stratocumulus apparent on Satellite which if trends are an
indicator will slowly break up through the day...however this will
retard temperature recoveries today off of this mornings single
digit readings. So...a minor update has been published to increase
clouds and tweak down expected highs over the northeastern zones.
Otherwise today will be a dry and cold break period before
conditions deteriorate again on Tuesday. /Fugazzi

&&

.AVIATION...
18Z TAFS: A dry modified arctic air mass is becoming entrenched
over the forecast area. This will keep low level boundary layer
fog to a minimum tonight. There are fields of mid level
stratocumulus with bases around 5 to 6KFT MSL sloshing around the
Columbia Basin today but all TAF sites are expected to remain VFR
through this evening. Tonight a weak disturbance will drop into
the region on northwest flow aloft bringing increasing and
thickening clouds with MVFR conditions possible after 09Z with
scattered -shsn especially over the KGEG area TAF sites and KPUW
as this wave passes by. /MJF


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        23   8  24  17  29  16 /   0  10  60  90  30  10
Coeur d`Alene  23   9  24  19  30  17 /   0  10  60  90  30  10
Pullman        22  10  26  23  29  17 /   0   0  50 100  80  20
Lewiston       28  15  32  28  34  23 /   0  10  30  90  70  30
Colville       24   9  28  14  35  14 /   0  10  50  80  10   0
Sandpoint      20  13  24  19  30  19 /   0  10  60  90  30  10
Kellogg        22  10  24  20  31  19 /   0  10  40  90  70  20
Moses Lake     27  13  26  18  29  16 /   0  10  20  30  40  10
Wenatchee      29  15  26  19  30  17 /   0  10  20  20  40  20
Omak           27  14  24  17  30  18 /   0  10  20  20  20  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Winter Storm Watch from Tuesday afternoon through Wednesday
     afternoon for Central Panhandle Mountains-Idaho Palouse.

     Winter Storm Watch from Tuesday afternoon through Wednesday
     afternoon for Lewis and Southern Nez Perce Counties.

     Winter Storm Watch from Tuesday afternoon through Wednesday
     afternoon for Lewiston Area.

WA...Winter Storm Watch from Tuesday afternoon through Wednesday
     afternoon for Washington Palouse.

     Winter Storm Watch from Tuesday afternoon through Wednesday
     afternoon for Northeast Blue Mountains.

     Winter Storm Watch from Tuesday afternoon through Wednesday
     afternoon for Lower Garfield and Asotin Counties.


&&

$$



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