Area Forecast Discussion
Issued by NWS Flagstaff, AZ

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FXUS65 KFGZ 151710

Area Forecast Discussion
National Weather Service Flagstaff AZ
1010 AM MST Fri Dec 15 2017

.SYNOPSIS...Temperatures will warm some today before a weather
system ushers in windy and colder weather later on Saturday
through Monday. Chances for rain and high elevation snow will also
develop, primarily on Sunday.


No significant changes this morning to the forecast for today.
Quiet weather will continue for through the first half of this
weekend, with increasing confidence for a winter weather event
this Sunday. Additional details will be published with the next
major grid package this afternoon.


.PREV DISCUSSION /423 AM MST/... Fair and warmer weather will
return today, before another disturbance crosses the state this
weekend. Breezy winds will develop and temperatures are forecast
to drop to below normal by Sunday. Though some of the details
with this upcoming system remain uncertain, rain and snow showers
are expected, primarily on Sunday with the potential for some
light snow accumulations across the higher terrain. After the
passage of the weekend system, a return to more benign weather is
expected early next week, with some extended range models
indicating another period of unsettled weather toward the end of
next week.


.AVIATION...For the 18Z package...VFR conditions expected over the
next 24 hours with increasing high clouds late this afternoon into
tonight. Cloud deck slowly lowering overnight and into Saturday
morning with mid level clouds increasing. SW sfc winds 5-15 kts
becoming light and variable after 01z Sat. Aviation discussion not
updated for TAF amendments.






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