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 260409
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
909 PM PDT WED MAY 25 2016

.SYNOPSIS...
Expect mild weather with isolated mountain showers and
thunderstorms again on Thursday. The arrival of a cold front
Thursday night will bring cooler temperatures Friday and Saturday,
along with a good chance for showers over the Idaho Panhandle and
the mountainous portions of Washington. Look for a gradual warming
trend after the Memorial Day weekend, with upper 60s to mid 70s by
early next week.


&&

.DISCUSSION...
Evening update: minor updates for tonight into tomorrow morning. I
increased cloud cover in the east and extended the shower threat
through the night and reduced the cloud cover in the west. By
morning the main threat is painted across the northern Panhandle
expanded, near the ID/MT border and near the Cascades. The main
potential shower maker is a mid-level disturbance shifting across
that region tonight, weakening going into the morning. The next
disturbance starts to move in tomorrow, just ahead of the main
low. This will make for a breezy day tomorrow, with the main
shower threat around the mountains in the afternoon. I can`t rule
out some sprinkles or stray shower over the eastern Columbia Basin
in the afternoon too with that second disturbance, but the risk is
too low to mention otherwise. Temperatures look on track. Given
the sky cover at this hour, I`m not expecting a repeat of the
sheltered valley fog that occurred this morning, but if there is
any clearing this will have to be reexamined. /J. Cote`

&&

.AVIATION...
00Z TAFS: A weak shortwave disturbance pushes in from the west
tonight into early Thursday, before weakening. Expect SCT-BKN
cloud cover over NE WA/N ID and maybe a stray shower near the
north WA and ID. There could also be some isolated thunderstorms.
The risk of anything at a TAF sites is limited. Winds will abate
away from the Cascades. However stronger winds are expected near
the Cascades through the evening, before these decrease going into
early Thursday AM. We will watch for some LLWS around MWH to PUW.
A second disturbance approaches later Thursday in advance of a
deeper low, with more clouds and mainly mountain shower chances,
and more breezy winds. Potential areas where the forecast may
veer from current thinking is around the sheltered valleys and
perhaps the higher palouse, where stratus/patchy fog may develop
overnight/early Thursday morning. Confidence is low. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  68  44  60  42  61 /  10   0  10  20  20  30
Coeur d`Alene  48  67  43  59  40  60 /  20  10  10  30  20  40
Pullman        45  65  43  57  41  60 /  10   0  10  10  10  20
Lewiston       51  70  48  64  47  67 /  10   0  10  10  10  20
Colville       46  71  45  61  42  64 /  20  20  30  60  50  60
Sandpoint      46  67  43  57  38  58 /  20  20  20  40  40  60
Kellogg        44  65  41  53  39  55 /  20  20  20  30  20  60
Moses Lake     52  74  46  68  44  70 /   0   0  10   0  10  10
Wenatchee      52  73  48  67  48  69 /   0   0  10  10  10  20
Omak           47  74  45  67  44  69 /  10  10  10  20  10  20

&&

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

$$


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