Area Forecast Discussion
Issued by NWS Grand Junction, CO

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342
FXUS65 KGJT 261751
AFDGJT

Area Forecast Discussion
National Weather Service Grand Junction CO
1051 AM MST Sun Feb 26 2017

.SHORT TERM...(Today through Monday)
Issued at 347 AM MST Sun Feb 26 2017

A weakening east-to-west front will travel south today over
southwest Colorado and southeast Utah and exit the area to the
south and east. Only light, high mountain, snow accumulations are
expected. Mainly clear skies today will allow temps to warm up a
bit. As the next trough approaches cloudiness will increase
tonight, producing milder temperatures overnight.

On Monday the next Pacific storm will start affecting the area. By
midday the 500 mb trough should be moving through the western
Great Basin with increasing moist SW flow aloft over the forecast
area. Precipitation should increase to likely across the mountains
with the best focus over the central and southwest mountains of UT
and CO. BY sunset the surface front should be over extreme NW CO
and extreme NE UT.

.LONG TERM...(Monday night through Saturday)
Issued at 347 AM MST Sun Feb 26 2017

Monday night the surface front will continue to slide slowly south
and east across the area and the 500 mb trough will move over UT.
The best areal coverage of precip appears to be around midnight
Monday night with precip gradually sliding south thereafter

Lingering moisture in the northwest flow behind the departing
longwave trough Wednesday will provide a chance of snow showers
to the northern mountain areas and near the Divide down toward
Independence Pass. Otherwise the remainder of the period will be
quiet under gradually increasing 500 mb heights as flow
transitions from northwesterly to zonal. Temperatures will slowly
moderate back to above normal ranges by next weekend.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1047 AM MST Sun Feb 26 2017

Weak high pressure positioned over the forecast area will maintain
VFR conditions at the terminals through at least early evening. A
storm system will impact the terminals tonight into Monday. This
storm system will bring generally light snow and gusty winds to
the area.

Forecast confidence is high.

&&

.GJT WATCHES/WARNINGS/ADVISORIES...
CO...Winter Storm Watch from Monday morning through Tuesday evening
     for COZ009-010-012-017>019.

UT...Winter Storm Watch from Monday morning through Tuesday evening
     for UTZ028.

&&

$$

SHORT TERM...CC
LONG TERM...CC/BM
AVIATION...Larry



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