Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 061657

Area Forecast Discussion
National Weather Service GRAND JUNCTION CO
957 AM MST Wed Dec 6 2017

.SHORT TERM...(Today through Thursday)
Issued at 329 AM MST Wed Dec 6 2017

Minimal changes to latest forecast as a deep trough remains over
the eastern half of the country while a large ridge has set up
over the West Coast. Our CWA is sandwiched between these two
features and will remain so for the foreseeable future. A weak
shortwave will drop down from the north today and may produce some
light snow for the Park and Gore Ranges this evening and
overnight. Models showing some light accumulation but with the
atmosphere remaining so dry, believe models might be overdoing it
a bit. Despite that, did leave some pops for the possibility.
Outside of that area, a carbon copy of yesterday with plenty of
sunny skies and late fall temperatures.

Thursday, another chance for some light snow for the northern
mountains as another shortwave drops down from the north. More sun
for eastern Utah and most areas of western Colorado.

.LONG TERM...(Thursday night through Tuesday)
Issued at 329 AM MST Wed Dec 6 2017

The Cliff Notes: Dry with above normal temperatures until further
notice. The anomalous NOAM Left Coast ridge will shift just
enough inland late in the week that any cold air dropping down the
backside will be directed well to our east. This will first bring
in warm air aloft that could cause some temperature forecast
difficulty in some of the basins and valleys. However, the lack
of snow in most areas should eventually help us mix better and
temperatures look to rebound close to 10 degrees above normal by
the weekend. Unfortunately, 10 days out the models look eerily
similar to what is happening now so little chance of a big pattern
change in the near future.


.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 957 AM MST Wed Dec 6 2017

A passing disturbance in northerly flow aloft will result in some
light snow showers along the Continental Divide in northern and
central Colorado tonight and Thursday morning. The disturbance
will also bring north or northwest winds during the afternoon.
Showers won`t impact TAF sites so expect VFR conditions and CIGS
above ILS breakpoints through the next 24 hours.






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