Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 182110

Area Forecast Discussion
National Weather Service Boise ID
310 PM MDT Sun Mar 18 2018

.SHORT TERM...Tonight through Wednesday...A brief break in the
precipitation tonight as the current storm exits eastward. A
couple of weak upper waves return a chance of showers to the east-
central Oregon and west-central Idaho mountains Monday and Tuesday.
Areas of far southeast Oregon and the Snake Plain to the ID/NV
border are likely to remain dry but mostly cloudy through
Tuesday. Precipitation becomes more widespread Tuesday night into
Wednesday as moist southwest flow increases ahead of an
approaching low. The influx of mild air ahead of the low will
raise snow levels to 5-6k feet by Wednesday afternoon.
Temperatures are within a few degrees of normal through the

.LONG TERM...Wednesday night through Sunday...Another upper low
off the  PACNW coast will bring widespread precip on Thursday
with a cold front passage. Snow levels are expected to be
6000-7000 ft on Thursday then dropping to 2000-3000 ft by Friday.
There is still a chance of rain and snow continuing through the
weekend, but models track this low quite differently, which will
make all the difference. Otherwise, temperatures on thursday will
be above normal under a strong southerly flow, then below normal
Friday and beyond.


.AVIATION...MVFR/IFR in isolated rain and snow showers. Showers
mainly across the higher elevations. Otherwise low VFR. Snow levels
between 2500 - 3500 ft with mountains obscured. Surface winds: WNW
10 kts or less, except 15-20 kts east of KMUO through sunset. Winds
aloft near 10 KFT MSL: west 10-20 kts.





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