Area Forecast Discussion
Issued by NWS Grand Junction, CO

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

FXUS65 KGJT 170856

Area Forecast Discussion
National Weather Service Grand Junction CO
256 AM MDT Mon Oct 17 2016

.SHORT TERM...(Today through Tuesday)
Issued at 233 AM MDT Mon Oct 17 2016

The current IR satellite image is showing mostly clear skies
around the area this morning with some high clouds in place over
Northeastern Utah and Northwestern Colorado. Breezy conditions
are lingering around the area this morning as a surface boundary
continues to sag south into Eastern Utah and Western Colorado.

This surface boundary will cool temperatures down around the area
today. On average most locations will see afternoon high
temperatures ranging between 5 to 10 degrees cooler than those
observed on Sunday. The coolest temperatures will be north of
I-70. Along with the cooler temperatures showers will be a
possibility today for the northern portion of the CWA as the
surface boundary moves south.

.LONG TERM...(Tuesday through Sunday)
Issued at 342 PM MDT Sun Oct 16 2016

Another piece of the strong polar jet and upstream energy will
drop into the Pacific Northwest Monday evening and approaches our
region by mid to late afternoon. The trend of this passing system
continues to be a weakening one in the major models. This seems
mainly due to minimal moisture advection from the northwest.
Instability and general upward lift appears to be better focused
over our northern zones through Tuesday evening but again snow
amounts look on the light side. Significantly cooler air moves in
behind this wave and temperatures look to end up on the low side
of normal for at least Wednesday before we begin another dry and
warm stretch. The jet stream retreats well to the north to end the
week with a dominate ridge building in across the west.
Temperatures should return to above normal Friday and persist
through at least the weekend.


.AVIATION...(For the 06Z TAFS through 06Z Monday night)
Issued at 1026 PM MDT Sun Oct 16 2016

VFR conditions will prevail through the period at all TAF sites.
The main challenge will continue to the be the strong and gusty
southwest to westerly winds. Expect surface winds to remain influenced
by the strong flow aloft overnight...then increase again by late
morning Monday as mixing occurs and stronger gusts surface. LLWS
also a concern overnight for most locations in western Colorado as
the surface winds gain a greater separation from the winds aloft.


CO...Wind Advisory until 9 AM MDT this morning for COZ003-004-009-010-

UT...Wind Advisory until 9 AM MDT this morning for UTZ023-025-028.



AVIATION...MPM is the U.S. government's official web portal to all federal, state and local government web resources and services.