Area Forecast Discussion
Issued by NWS Great Falls, MT

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FXUS65 KTFX 271151
AFDTFX

Area Forecast Discussion
National Weather Service Great Falls MT
550 AM MDT Thu Apr 27 2017

Aviation Section Updated

.DISCUSSION...
Today through Friday...An upper level trof of low pressure will
continue to reside over the region today. As a
result...scattered/numerous showers will affect much of the region
through the day today. Snow is likely in the
mountains...especially above 6000 feet. The winter weather
highlights will continue, with overall new snow accumulations
generally 1 to 2 inches this morning. The highlights could be
extended later today into tonight/Friday morning, as an additional
2 to 5 inches is possible at higher elevations. Otherwise
afternoon temperatures will be below normal once again today. The
cool temperatures will continue into Friday. The precipitation
should begin to diminish over the north on Friday, but
scattered/likely chances for precipitation will continue across
the Southwest. Brusda

Friday Night through Next Thursday...Unsettled weather will persist
into the upcoming weekend as a longwave upper trough exits the CWA
to the east Friday night into Saturday, while a shortwave trough
dives southeastward into our area Saturday night into Sunday. For
Monday and Tuesday, flow aloft becomes northwesterly in response to
upper ridging building-in from the west, yet multiple disturbances
embedded in the flow look to traverse the region from northwest to
southeast. Thus, scattered precipitation should persist. By
Wednesday and Thursday of next week, a drying and warming trend is
expected for North-Central and Southwest Montana as the
aforementioned ridge continues to build over the CWA. Lows will tend
to be near normal throughout the period. As for highs, values will
remain slightly below normal this weekend through Tuesday. Highs
should then moderate to near or slightly above normal by next
Wednesday and especially Thursday. Jaszka

&&

.AVIATION...
Updated 1150Z.
With an upper level trof over the region today, expect scattered
rain/snow showers. Ceilings will be low with LIFR conditions at
times this morning. Expect scattered showers this evening/overnight
with LIFR conditions possible once again. Mountains will be obscured
at times through the period. Brusda

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  46  34  50  30 /  70  40  40  10
CTB  43  33  50  31 /  70  40  20  20
HLN  49  35  52  33 /  40  30  50  20
BZN  45  31  47  28 /  60  50  60  20
WEY  35  24  39  22 /  60  50  40  20
DLN  44  29  48  28 /  40  20  40  20
HVR  47  34  54  32 /  70  50  20  10
LWT  43  32  44  27 /  70  60  60  10

&&

.TFX WATCHES/WARNINGS/ADVISORIES...

Winter Weather Advisory until noon MDT today For the Little Belt
Mountains in Central Montana, including Kings Hill Pass in
Cascade...Judith Basin...Meagher.

Winter Weather Advisory until noon MDT today above 6000 feet for
Gallatin...Madison.

Winter Weather Advisory until noon MDT today above 5000 feet for
Northern Rocky Mountain Front.

&&

$$

weather.gov/greatfalls



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