Scientific Forecaster Discussion

Return to Local Conditions & Forecast

Without Abbreviations
With Abbreviations

Area forecast discussion 
National Weather Service Spokane Washington
958 am PDT sun Apr 26 2015

Synopsis...
an upper level low will weaken and move out of the inland
northwest today. This will be followed by high pressure, with
warmer temperatures and mostly dry conditions, for the beginning
of the work week. The threat for showers will increase beginning
late Tuesday, lasting through the end of next week.

&&

Discussion...
rest of today...an upper level ridge is beginning to build into
the region today. This will effectively stabilize the atmosphere
with mainly dry conditions...although there continues a ghost of a
chance of showers over the high terrain of the Idaho Panhandle
where warming aloft will be less aggressive and thus some
lingering weak instability coupled with localized orographic
ascent. Otherwise plenty of sunshine filtered through variable
high clouds is expected today...with the valley fog over the
northeastern zone gradually burning off by early afternoon.
Temperatures will still run slightly below normal...recovering
from well below normal yesterday and on the way to cresting near
above normal tomorrow as the upper ridge exerts itself more fully.
Minor updates to zone forecast and state forecast expected.
/Fugazzi

&&

Aviation...
18z tafs: a building upper level ridge aloft and weak high
pressure at the surface will promote VFR conditions at all taf
sites through 18z Monday. Morning fog will exist through 20z in
the northern valleys of Washington and Idaho before burning off...with
mountain cumulus through 02z. /Mjf

&&

Preliminary point temps/pops...
Spokane 58 39 67 45 74 43 / 10 0 0 0 0 10
Coeur D'Alene 57 35 67 41 74 42 / 10 10 0 0 0 20
Pullman 57 35 67 43 72 42 / 10 0 0 0 0 20
Lewiston 62 40 72 45 79 47 / 10 0 0 0 0 20
Colville 60 36 70 41 76 40 / 10 10 0 0 10 10
Sandpoint 57 32 66 36 72 40 / 10 10 0 0 0 20
Kellogg 55 35 66 40 72 43 / 10 10 0 0 0 30
Moses Lake 64 40 72 45 77 42 / 0 10 0 0 0 10
Wenatchee 65 45 73 48 73 45 / 10 10 0 0 0 10
Omak 63 39 72 42 74 39 / 10 10 0 0 10 10

&&

Otx watches/warnings/advisories...
Idaho...none.
Washington...none.
&&

$$

National Weather Service Glossary of Abbreviations