Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 282344
AFDGJT

Area Forecast Discussion
National Weather Service GRAND JUNCTION CO
544 PM MDT Fri Apr 28 2017

.SHORT TERM...(Tonight through Saturday night)
Issued at 253 PM MDT Fri Apr 28 2017

Increasing clouds late tonight will prevent subfreezing
temperatures in the Grand Junction vicinity tonight, but mostly
clear skies will bring widespread freezing temperatures to the
central Gunnison, Uncompahgre and North Fork of the Gunnison river
valleys tonight.

A large trough centered over western CO will continue traveling
south as a strong shortwave trough develops on its western side.
This shortwave will travel quickly to New Mexico as it strengthens
causing the main low to travel into New Mexico late tonight. This
low will then move east and northeast to southeast CO late
tonight. As this low moves east, clouds will be draw from east to
west across the forecast area late tonight. These clouds will
spread over northwest and central CO preventing widespread sub-
freezing temperatures in the Grand Junction Vicinity.

Skies will clear again Saturday night which may lead to more
freezing temperatures over west-central Colorado.

.LONG TERM...(Sunday through Friday)
Issued at 253 PM MDT Fri Apr 28 2017

Sunday morning may be another cold one as skies are projected to
become mostly clear, allowing temperature to drop. A ridge will
build over the western U.S. Sunday with eastern Utah and western
CO on its eastern periphery. This will bring north winds over the
area keeping temperatures below seasonal norms through
Wednesday. Two weak shortwave troughs may clip the northern CO
zones Monday and Tuesday, but the rest of the area will be dry
through the week. By Thursday temperatures should warm to near
normal, then rise well above normal Friday.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 527 PM MDT Fri Apr 28 2017

An upper level low will keep conditions unsettled over the
forecast area. TEX will remain in IFR ceiling heights through the
evening and as snow showers pass through the area, VIS of 1 mile
or less is possible. Elsewhere, VFR conditions are expected
however a stray shower may affect higher mountain sites through
the overnight in places like ASE and EGE. Winds will die down
overnight with ceiling heights finally rising later on Saturday
morning and into the afternoon.

&&

.GJT WATCHES/WARNINGS/ADVISORIES...
CO...Freeze Warning from midnight tonight to 9 AM MDT Saturday for
     COZ011.

UT...None.
&&

$$

SHORT TERM...CC
LONG TERM...CC
AVIATION...MAC



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