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Area forecast discussion 
National Weather Service Pocatello Idaho
333 am MDT Sat Aug 1 2015

Short term...Saturday and Sunday...heat is the key word for the
weekend. Impacts include temperatures in the upper 80s in the
mountains to upper 90s in the lower valleys. Safety information
has been posted to our webpage weather story to help highlight the
concerns on the weekend warmth. Monsoon flow is slowly moving our
way from the Great Basin upper level high pressure ridge.
Earliest impact will be in the central Idaho mountains by Sunday
afternoon with isolated thunderstorm chances.

Long term...Monday through next Saturday. With the ridge breaking
down and influx of moisture into the area thunderstorm chances
increase over all the area Monday and linger into Wednesday.
Precipitable water values increase to around one inch by Monday
which should support heavy rainfall with the stronger
thunderstorms. An area of low pressure off the California coast
starts to move inland late in the week with a renewed chance for
thunderstorms by Saturday. Temperatures to moderate into the 80s
through the week with Wednesday the coolest. Overall impacts will
be increased thunderstorm activity with potential for isolated
flash flooding for any slow moving thunderstorm. Preston



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Aviation...high pressure ridging will prevail over southeast Idaho
today and Sunday. Expect light winds and VFR conditions today and
Sunday. Ksun may see an isolated thunderstorm later in the day
Sunday. Preston



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Fire weather...upper level high pressure ridge will continue to
stay in place over southeast Idaho through early Sunday. Expect low
relative humidity...warm temperatures and high Haines index through
Sunday. The upper level ridge breaks down late Sunday into Monday.
Isolated...mostly dry...thunderstorms are possible for the central
mountains late Sunday. Expect scattered thunderstorms by Monday over
the majority of the area. Considering the thunderstorm coverage...a
Fire Weather Watch/red flag warning may be needed for Monday
depending on fuel conditions. Look for continued afternoon scattered
thunderstorm Tuesday and Wednesday. Wyatt/Preston



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Pih watches/warnings/advisories...
none.
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