Area Forecast Discussion
Issued by NWS Missoula, MT

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FXUS65 KMSO 202212

Area Forecast Discussion
National Weather Service Missoula MT
233 PM MDT SAT SEP 20 2014

.DISCUSSION...A ridge of high pressure will continue to be the
dominant feature through at least the middle of the week. The
exception will be a weak disturbance under-cutting the ridge,
which will bring showers to Lemhi county and southwest Montana on
Sunday night into Monday.

The models are now indicating a plume of moisture moving up into
the region on Tuesday which might increase the shower activity
across the Northern Rockies. Northwest Montana appears to have the
best chance of experience precipitation from this disturbance.

The ridge of high pressure amplifies over the region on Wednesday
causing extremely warm air to move into the area. High temperatures
on Wednesday could approach record values. The latest run of the
models are slowing the cold front, so Thursday could also be a
warm and dry day. All solutions are indicating at a cold trough
will be over the area by next weekend.



Quiet weather is expected for the next 24 hours, with minimal
impact to area terminals. Surface winds are expected to be weak
and of little consequence. Although temperatures could approach
dew points at BTM tomorrow morning, brief fog looks unlikely given
climatology and experience with similar situations in the past.



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