National Weather Service National Headquarters

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FXUS66 KOTX 171643
AFDOTX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
943 AM PDT Fri May 17 2013

.SYNOPSIS...
There will be little change to the current spring progressive
weather pattern through Monday. Expect seasonable temperatures
and occasional weak disturbances bearing scattered showers and a
few thunderstorms. Tuesday and through the remainder of next week
expect a very cool and wet weather pattern.


&&

.DISCUSSION...
Morning update: Much of Ern Wa and Nrn ID is dry and sunny at this
time with several weak midlevel disturbances knocking on our
doorstep. The first is a shortwave trof which extends from the
Seattle Area southeast toward NE Oregon. This feature will slowly
lift N/NE through the day and enhance showers across the Cascades
and western sections of the Columbia Basin. A second wave will
clip the Camas Prairie and Central Panhandle Mtns. In between,
surface heating will provide a few hundred joules of SB Cape and
lead to widely scattered showers. These showers will initiate off
the higher terrain between now and noon then begin to blossom over
the lowlands as well and just about every location will have the
potential for a shower or two this afternoon. Temperatures will be
a few degrees warmer then Thursday across portions of NE WA and
Nrn ID...trending similar across the central CWA...then cooler
toward locations like Wenatchee and Moses Lake where cloud cover
will be more prevalent. /sb




&&

.AVIATION...
12Z TAFS: General low pressure along with marginal instability
and very small disturbances passing over and near the area
allow for the prolonged mention of showers and possibly a
thunderstorm or two in various shape and form. Additionally
some late night and early morning valley fog in northern
valleys may bring visibilities down to MVFR..but other than
that overall VFR conditions are expected to prevail through 12Z
Saturday. /Pelatti



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  48  65  45  65  46 /  20  20  40  10  10  10
Coeur d`Alene  66  47  64  44  64  45 /  30  20  40  10  20  10
Pullman        64  47  63  42  62  43 /  30  20  20  10  10  10
Lewiston       71  52  70  48  69  49 /  20  20  20  10  10  10
Colville       74  47  70  45  72  43 /  30  30  50  50  20  10
Sandpoint      67  46  65  43  64  43 /  40  30  40  30  30  10
Kellogg        62  48  61  44  59  46 /  40  30  40  20  30  20
Moses Lake     74  51  72  48  75  46 /  20  20  10  10  10   0
Wenatchee      71  52  67  49  71  49 /  20  30  10  10  10   0
Omak           75  47  71  44  73  42 /  20  30  40  20  10  10

&&

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

$$