Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 251951
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
151 PM MDT THU AUG 25 2016

.SHORT TERM...Tonight through Saturday.
Isolated convection in central mountains and southern and eastern
highlands. As of early afternoon no lightning strikes in southeast
Idaho. Northeast winds beginning to die down in Snake Plain and
Lake Wind Advisory set to expire at 3 pm. Similar weather Friday
with isolated thunderstorms again mainly in central mountains and
eastern highlands. High temperatures should remain below normal
through Friday then a warming trend sets in Saturday as flow aloft
begins to turn more westerly by Saturday with high temperatures
returning to above normal. Dry conditions expected on Saturday. GK

LONG TERM...Saturday night through Thursday. Flow transitions
through zonal flow over the weekend in response to deepening low of
BC Canada coast. Breezy winds and gradually increasing temperatures
expected each afternoon Sunday through Wednesday when stronger
shortwave ejects northeast across the region. Some differences
between GFS and ECMWF regarding this feature. Split the difference
and maintained weak precip chances just below climo higher elevation
areas for Wednesday and Thursday. DMH

&&

.AVIATION...Isolated weak convection possible early this evening
over portions of central mtns northeast of KSUN and eastern
highlands east of I-15. Localized outflows around 25kts possible.
Winds decrease overnight as inversions strengthen. Pockets of
visibility restriction due to smoke expected overnight especially
KIDA/KDIJ near active fires. Another round of isolated storms
possible higher elevation areas afternoon Friday. DMH

&&

.FIRE WEATHER...
Convective activity has remained weak so far with limited lighting
strikes as of 2 pm. Expect isolated thunderstorms still this
evening mainly zones 411 and 413 as well as 475 and 476. Northeast
winds in 425 will die by sunset. Expect isolated thunderstorms in
the same areas Friday as well. Expect widespread dry conditions
Saturday with temperatures beginning a significant warmup as flow
aloft shifts to westerly then southwesterly by next week with very
warm conditions expected into the middle part of next week with
very low humidity expected to continue.
GK

&&

.PIH Watches/Warnings/Advisories...
Lake Wind Advisory until 3 PM MDT this afternoon for IDZ021.

&&

$$


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