Area Forecast Discussion
Issued by NWS Glasgow, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
FXUS65 KGGW 222128

Area Forecast Discussion
National Weather Service GLASGOW MT
228 PM MST Sun Jan 22 2017

.SHORT TERM...for northeast Montana...tonight through Tue...

Low pressure will continue to lift northeast of the CWA today,
with expected clearing skies tonight. Low clouds/patchy freezing
fog have continued today and see little reason to remove it at
least for this evening. Eventually, as a trough deepens across the
Western U.S. into Monday some high cloudiness will filter into the
area and attention will turn to associated precipitation
eventually Monday afternoon into Monday evening.

Thermal profiles support mainly snow, though a little mid level
warm layer in the western zones may be enough to allow for a
little wintry mix to start out. Model consensus continues with
precipitation amounts remaining on the lighter side however.

Upper trough will remain in place for Tuesday with lingering snow
showers possible along with continuing low clouds. Do not want to
rule out elevated fog with any lingering low clouds but should be
limited coverage in a CAA pattern. Maliawco

.LONG TERM...Tue night through Sun...

Blended inherited forecast with 12z model solutions. Overall
forecast looked good.

Beyond period, cold air returns with ECMWF showing a strong
clipper system approaching the area. TFJ

Previous Discussion...
Upper trof moves across the western states midweek with slight
chances of snow and cooler temperatures. A weak shortwave and cold
front will drop out of Canada on the northerly flow on Wednesday
for another round of light snow chances.

Upper ridge then pushes over the Rockies for drier weather
through the end of the week. Cooler temperatures should persist
until the weekend before another chinook begins to develop across
Alberta. Ebert



MVFR then VFR then possible scattered lower conditions tonight.

The low stratus cloud deck is expected to dissipate early this
evening but this may allow for patchy fog formation in parts of
the area. Ammendments will likely be needed. TFJ




$$ is the U.S. government's official web portal to all federal, state and local government web resources and services.