Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 111031

Area Forecast Discussion
National Weather Service GRAND JUNCTION CO
331 AM MST Mon Dec 11 2017

.SHORT TERM...(Today through Tuesday)
Issued at 331 AM MST Mon Dec 11 2017

Persistence. Left Coast ridge transitions to deep Eastern States
trough. We are insulated from the waves dropping through the
transition zone over the Eastern Plains so little change expected
in the short term. Will continue to fight temperature forecast
with inversions in place but for the most part it remains status
quo with the high valleys and basins struggling to hit most
guidance and mid slopes seeing the warmest temperatures. The dry
streak continues.

.LONG TERM...(Tuesday night through Sunday)
Issued at 331 AM MST Mon Dec 11 2017

Dry continues through the remainder of the week with the exception
of some moisture dropping flurries or very light snow over the
northern and central divide mountains Wednesday night. The models
are finally bringing a strong enough wave out of the Pacific to
disrupt the ridge. The agreement of a fast moving wave impacting
the central Rockies by the weekend is increasing. Precipitation
rates look fairly light attm but it is at least a change.
Unfortunately there is nothing significant showing up beyond this
just yet as models are still having trouble with persistence of
the ridge over the West. Stay tuned.


.AVIATION...(For the 12Z TAFS through 12Z Tuesday morning)
Issued at 331 AM MST Mon Dec 11 2017

No concerns again for this forecast period starting at 11/12Z.
Mainly clear skies and light winds will leave minimal impacts for
aviation interests. VFR is highly probable to stick around will
just be monitoring the Eagle Valley for any disruption in this




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