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000
FXUS66 KOTX 180547
AFDOTX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
1047 PM PDT Fri May 17 2013

.SYNOPSIS...
A series of weak weather disturbances coupled with an unstable air
mass will result in occasional showers and isolated thunderstorms
through most of the weekend. The greatest threat of thunder will
occur over the northeast corner of Washington and much of the
Idaho Panhandle. Precipitation chances will diminish a bit on
Sunday and by Monday most locations will be dry. This drying will
come to an abrupt end by Tuesday and into the middle of next week
as a very cool and wet upper level low parks over the Inland
Northwest. Moderate to locally heavy precipitation will be
possible especially over northeast Washington and the northern
Panhandle.


&&

.DISCUSSION...
Forecast from the afternoon package is largely on track. The upper
level shortwave trough of lower pressure responsible for the
showers across the region is pivoting into northeast Oregon up
into southwestern WA this evening. Scattered showers are expected
to continue across much of the region through the late evening
hours and then slowly push across northern portions of eastern WA
and over the ID Panhandle for the overnight hours. I did keep a
mention of some isolated thunderstorms across the Central
Panhandle Mountains and Northern Panhandle through the late
evening hours as we continue to get a few lightning strikes from
some of the stronger cells across these areas. We may see a strike
or two after about 1100 PM tonight, but instability aloft is
fairly weak for much in the way of thunderstorms to continue
through the nighttime hours. /SVH


&&

.AVIATION...
06Z TAFS: A slow moving system beginning to push into southern WA
late this evening will continue to produce isolated to scattered
rain showers across the region tonight into tomorrow afternoon. Cigs
are expected to remain above 4 kft agl with vfr conditions through
Saturday afternoon. Winds are expected to pick up a bit out of the
west late Saturday afternoon at KEAT with gusts up to 30 mph
possible. /SVH


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  65  45  66  45  69 /  50  40  20  20  10  10
Coeur d`Alene  47  64  44  64  44  68 /  50  40  30  30  20  10
Pullman        47  63  43  63  42  68 /  20  20  20  20  10   0
Lewiston       51  70  49  70  48  75 /  20  20  20  20  10   0
Colville       47  70  44  73  43  75 /  40  50  40  30  20  10
Sandpoint      46  64  43  64  42  68 /  60  40  40  40  30  10
Kellogg        47  60  44  59  45  66 /  70  40  30  40  40  10
Moses Lake     50  73  47  76  46  77 /  30  10  10  10   0   0
Wenatchee      50  68  48  72  48  75 /  20  10  10  10   0   0
Omak           48  71  43  74  42  75 /  30  40  20  10  10  10

&&

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

$$