Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 230304

Area Forecast Discussion
National Weather Service Boise ID
904 PM MDT Thu Jun 22 2017

.DISCUSSION...No changes to current forecast. High pressure over
the area will continue to bring warm and dry conditions through
much of the weekend. This building high pressure will relax the
pressure gradient across the area which will bring lighter wind
across the area.


.AVIATION...VFR with clear skies. Gusty northwest surface winds 20-
35 kts through sunset, then 10 kts or less. Winds aloft to 10k feet
MSL: NNW 10-30 kts.


SHORT TERM...Tonight through Sunday...Northwest flow will relax
as an upper ridge builds over the Intermountain NW through the
weekend. Conditions will remain dry and temperatures will warm in
response to the building ridge. By Sunday, temperatures climb
into the mid 90s in the lower valleys and the low-mid 80s in the
mountains. The first signs of increasing mid-level moisture will
arrive in the form of cumulus build-ups over far southeast Oregon
Sunday afternoon.

LONG TERM...Sunday night through Thursday...The upper level
ridge begins to slowly break down Sunday night as an upper level
low in British Columbia starts to impact the area. A trough
embedded in the flow pushes through Sunday night which could be
enough for afternoon thunderstorms to develop. Models are still in
disagreement on placement of the precipitation associated with
this Low, but chances are still there to see afternoon
thunderstorms each day during the extended period. Temperatures
drop back to normal by the end of the period.





PREV LONG TERM....JC is the U.S. government's official web portal to all federal, state and local government web resources and services.