Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 290335

Area Forecast Discussion
National Weather Service Salt Lake City UT
935 PM MDT Wed Jun 28 2017

.SYNOPSIS...A shallow cold front will continue to sag southward
through southern Utah tonight. High pressure will return
beginning Friday. A weakening trough will cross namely northern
Utah Sunday prior to high pressure rebuilding once again early
next week.


.DISCUSSION...A shortwave trough is currently rotating through the
forecast area this evening, which as pushed a surface front
through northern and central Utah. This boundary currently extends
from roughly Green River to Milford, and will continue to drift
southward through the remainder of the evening and overnight
hours. A secondary shortwave currently digging into the northern
Rockies will drop south during the day Thursday, bringing another
surge of low level cold advection into the forecast area. Any
threat for precipitation associated with this feature looks to
remain north and east of the forecast area.

Updated to remove evening PoPs from the Uinta Basin earlier, and
will update again to remove precip along the ID border shortly.


.AVIATION...Northerly winds will remain at KSLC into the overnight
hours, with a 40 percent chance they persist throughout the TAF
period. A switch to the south, or a period of light and variable
winds, seems most likely during the 09-14Z timeframe.


UT...Red Flag Warning until 10 PM MDT Thursday for UTZ482-484-488-489-

     Red Flag Warning until 10 PM MDT this evening for UTZ478-479-492-




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