Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 251728
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1028 AM PDT Sat Jun 25 2022

.SYNOPSIS...
High pressure returns overnight into Saturday, starting a gradual
warming trend. Temperatures peak on Monday with the warmest of
the season so far, widespread 80s and 90s. Anticipate gusty winds
and thunderstorm chances by Tuesday into mid week. Rivers continue
to run high and fast with cold water temperatures.

&&

.DISCUSSION...
Today through Monday: The weather this weekend will be dominated
by an upper level ridge moving over the Pacific Northwest. A deep
upper level low over the Pacific will work to amplify the ridge as
it migrates eastward. A thermally induced surface trough building
over the west side of the Cascades this morning will result in
offshore flow at the surface. 850mb temperatures will start around
15-17C today and warm each day this weekend. Highs today will be
in the upper 70s to mid 80s and highs on Sunday will warm to the
mid 80s and low 90s.By Monday, 850mb temperatures will reach
22-27C which translates to highs in the low 90s to low 100s.
Although temperatures to this degree aren`t uncommon across the
Inland Northwest, many people won`t be acclimated to this type of
heat yet. If you have plans to be outside or are without effective
cooling sources, it will be important to take the necessary steps
to mitigate heat illness and impact. Luckily, overnight lows
won`t be overly high which will aid to reduce the overall heat
stress. The upper level ridge begins to breakdown Monday night as
the offshore upper level low moves inland. As this system moves
inland, there will be a threat for elevated convection across the
Inland Northwest Monday night with the greatest chances across the
Cascades and the Blues. vmt

Tuesday through Friday: After our foray into the realm of summer
heat on Monday, temperatures are likely to moderate mid-week. As low
pressure pushes across southern British Columbia and the Pacific
Northwest, showers and thunderstorms are forecast each day from
Tuesday thru Friday, though primarily focused across our northern
zones. In addition, we will likely see gusty west/southwest winds on
Tuesday. Daytime temps are likely to remain a bit above normal on
Tuesday, then cool back down to near seasonal norms for Wednesday
through Friday. /KD

&&

.AVIATION...
18Z TAFS: VFR conditions are expected through this entire period.
Gusty northeast winds will develop in parts of the Columbia Basin
this afternoon, while cumulus forms over the northern mountains
through the day. It should remain dry. Cumulus and breezy winds
will decrease this evening. Easterly winds will prevail overnight
into Sunday morning. /rfox.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        79  53  85  57  91  61 /   0   0   0   0   0   0
Coeur d`Alene  78  52  84  55  89  60 /   0   0   0   0   0   0
Pullman        77  50  83  55  90  61 /   0   0   0   0   0   0
Lewiston       85  56  91  61  97  66 /   0   0   0   0   0   0
Colville       80  50  87  52  92  59 /   0   0   0   0   0  10
Sandpoint      77  50  83  51  87  58 /   0   0   0   0   0   0
Kellogg        75  51  83  56  89  62 /   0   0   0   0   0   0
Moses Lake     86  56  92  58  98  64 /   0   0   0   0   0   0
Wenatchee      86  59  91  64  96  68 /   0   0   0   0   0  10
Omak           84  56  90  58  95  65 /   0   0   0   0   0  10

&&

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

&&

$$


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