Scientific Forecaster Discussion
fxus65 kmso 280934
Area forecast discussion
National Weather Service Missoula Montana
334 am MDT Fri Apr 28 2017
Rain and high elevation snow showers will continue to be present
across the northern rockies through tonight. Snow over area
mountain passes will occur at times this morning, however the
impact to travel conditions will be minimal on paved roads.
Daytime heating will reinvigorate shower activity this afternoon,
particularly over lower elevations of western Montana. Showers
will slowly dissipate through late tonight.
Saturday will be a mostly dry and relatively warm day across the
northern rockies, however clouds are not expected to clear up much
throughout the day. The break from rain showers will be brief,
with another wet system late Saturday.
The next disturbance will bring widespread valley rain and high
elevation snow to the northern rockies beginning late Saturday
night/Sunday. Periodic showers in northwest flow will continue
Monday and again on Tuesday, with afternoon instability favoring
convective-type showers. Temperatures will remain cooler than
A drier high pressure ridge tries to build its way into the area
late Tuesday into Wednesday, but long-range models are now in less
agreement that warm and dry weather will be favored for long.
Wednesday into Thursday, northwest/west-central Montana and north-
central Idaho may see another round of showers if the GFS model
comes true. By Friday, a cool and wet low pressure pattern will
once again become the dominant regime.
Showers will exist throughout northern rockies air space during
the next 24 hours. Terrain will be obscured at times, however the
frequency of obscurations will be slightly less than the past few
days. Showers will develop near area terminals this morning, and
again this afternoon, however there is a low expectation of any
showers impacting ceilings or visibility at any terminal. Clouds
will begin to lessen in coverage after 29/0000z.