Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 230547
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1047 PM PDT WED OCT 22 2014

.SYNOPSIS...
A very moist frontal boundary will produce heavy rain and high
elevation snow for the mountains and steady rain in the valleys
and basin tonight. Breezy and unsettled conditions will continue
through Thursday. A strong cold front will produce windy conditions
Saturday night into Sunday morning. The pattern will continue to
be active into early next week. This includes the potential for
widespread rain into early next week, as moisture associated with
former typhoons makes its way toward the Pacific Northwest.


&&

.DISCUSSION...
The first round of precipitation is currently moving across extreme
eastern WA into north Idaho this evening. Regional radar mosaic
shows a broad band of steady precip moving north-northeast across
the region. It looks like all but the extreme southeast corner of
the forecast area will see some light rain from this feature. The
Lewis-Clark Valley and Camas Prairie may not get measurable precip
from this feature. PoPs and QPF were adjusted to account for a
quicker advancement of this warm frontal band. Some patchy fog was
added to the weather grids in response to reports of fog in the
Spokane and West Plains area. Webcams show that the problem area
could be the North Spokane area. Patchy fog was added to the
northeast valleys that are typically favorable to fog formation.
Winds were also bumped up across the Camas Prairie and into the
Lewiston area. The windy spots could see winds of 20 to 25 kts
with gusts to 40 kts. Solidly windy but still below advisory
criteria. The occluded front appears to be on track, just reaching
the Cascade crest as of 8pm. This feature has been dropping a
quick quarter inch or so as it moved inland across western WA. It
should pass through eastern WA by 12Z then across north ID by 18Z.
The entire forecast area should see a quick soaking as the front
passes through. /Kelch

&&

.AVIATION...
06Z TAFS: A trailing occluded front will sweep through the region
overnight with heavier rain along and immediately behind the
front. A moist boundary layer even after the FROPA will likely
promote continued MVFR (and possibly IFR) stratus ceilings through
20Z Thursday at the KGEG area TAF sites and KEAT. Gusty winds will
help to lift low stratus after 20Z Thursday. Scattered showers
will develop across the higher terrain surrounding the basin
during the afternoon hours. Isolated thunderstorms may develop
north of the KGEG-KCOE area and are not likely to affect any TAF
site. /EK



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        48  59  43  57  44  63 / 100  50  50  10  20  20
Coeur d`Alene  46  58  41  57  41  64 / 100  70  50  10  20  20
Pullman        48  59  45  59  47  69 /  90  80  50  10  40  10
Lewiston       53  63  48  64  46  72 /  40  60  50  20  40  10
Colville       48  57  41  58  41  60 / 100  60  50  10  50  30
Sandpoint      44  55  38  56  38  60 / 100 100  70  20  30  20
Kellogg        46  54  41  53  42  62 /  90  80  80  20  20  10
Moses Lake     50  64  43  61  45  63 /  90  20  10  10  40  20
Wenatchee      48  61  44  57  47  58 / 100  30  10  10  60  40
Omak           48  59  40  58  44  58 / 100  40  10  10  60  40

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




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