Area Forecast Discussion
Issued by NWS Grand Junction, CO

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FXUS65 KGJT 302109

Area Forecast Discussion
National Weather Service Grand Junction CO
309 PM MDT MON MAY 30 2016

.SHORT TERM...(This evening through Tuesday night)
Issued at 309 PM MDT Mon May 30 2016

Passing trough to the north and closed low in Arizona will become
out of phase this evening as the closed low drops to the south
and the northern trough gets pushed to the southeast by an
upper level jet diving southeast across Wyoming. Expecting a
downturn in activity on Tuesday though a few showers and
thunderstorms will still develop over the higher terrain.
Temperatures will remain near normal over the next couple of days.

.LONG TERM...(Wednesday through Monday)
Issued at 309 PM MDT Mon May 30 2016

Some residual moisture and energy with the exiting southern
trough will keep some convective activity over the southern San
Juans on Wednesday. By Thursday, high pressure will be
strengthening across the Desert Southwest and temperatures will
soar to near 90 in the lower valleys. Eastern Utah and most of the western
Colorado valleys look to remain dry through next weekend, but a
tap of 6+ g/kg spec humidity Gulf of Mexico moisture is forecast
to stream into the western Colorado mountains late in the weekend.
This moisture combined with above normal temperatures will likely
cause an increase in activity by Sunday and into the early


.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1033 AM MDT Mon May 30 2016

VFR conditions will prevail at airports across eastern Utah and
western Colorado through the next 24 hours. However, daytime
warming and residual moisture will combine to generate scattered
showers and thunderstorms over the higher terrain from 18Z through
03Z this evening. The strongest cells will be capable producing
outflow winds to 35 MPH and will briefly obscure mountains.
Otherwise, winds will be relatively light and terrain driven.


.GJT Watches/Warnings/Advisories...


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