Area Forecast Discussion
Issued by NWS Grand Junction, CO

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807
FXUS65 KGJT 210925
AFDGJT

Area Forecast Discussion
National Weather Service Grand Junction CO
325 AM MDT SAT MAY 21 2016

.SHORT TERM...(Today through Sunday)
Issued at 305 AM MDT Sat May 21 2016


The center of a large low pressure system continues rotating in
place over southeast Oregon. Its cold front will stretch north to
south across Utah today and make little progress east. The strong
low level wind band and jet stream will also slowly move east over
western and central Utah. This will cause surface winds to nudge
up again today. Increasing cloud cover may inhibit some mixing but
given the predicted gradient it shouldn`t matter much. The wind
advisories for eastern Utah (with the exception of the Eastern
Uinta Basin) and portions of extreme western Colorado are well
justified. Have held off expanding them further east as the
tighter pressure gradient doesn`t seem to spread much east of the
colorado and utah border until this evening and overnight.

On Sunday the low center makes little progress east and instead
lifts to the northeast into the Canadian Rockies with the tail of
the trough pushing across our northern counties. The cold front
will move through the forecast area, but the strongest forcing
will remain across the north. The portion of the system moving
through the forecast area will remain moisture starved so only
isolated at best thunderstorm coverage is expected.

.LONG TERM...(Sunday through Friday)
Issued at 340 PM MDT Fri May 20 2016

A trough remains over the Intermountain West with a stronger
shortwave still timed to pass next Thursday. A slow warming trend
through Wednesday will cool down again on Thursday. Late-day
convection looks to favor the northern and eastern mountains.

&&

.AVIATION...(For the 12Z TAFS through 12Z Sunday morning)
Issued at 305 AM MDT Sat May 21 2016

Turbulence from strong south to southwest winds will be widespread
the next 24 hours. All taf sites will experience windy conditions.
There is a chance that blowing dust may affect visibility over the
area, especially over southeast Utah and southwest Colorado. Low
level wind shear is also possible this morning and late tonight.

&&

.GJT Watches/Warnings/Advisories...
CO...Wind Advisory from 10 AM this morning to 8 PM MDT this evening
     for COZ003.

     Wind Advisory from noon today to 8 PM MDT this evening for
     COZ001-006-020.

UT...Wind Advisory from 10 AM this morning to 8 PM MDT this evening
     for UTZ023-025-028.

     Wind Advisory from noon today to 8 PM MDT this evening for
     UTZ022-027-029.

&&

$$

SHORT TERM...CC
LONG TERM...JOE
AVIATION...CC



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