Area Forecast Discussion
Issued by NWS Flagstaff, AZ

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FXUS65 KFGZ 231153

Area Forecast Discussion
National Weather Service Flagstaff AZ
455 AM MST Tue Jan 23 2018

.SYNOPSIS...High pressure will bring a warming trend and dry
conditions to the area through Wednesday. A cold front will
arrive Thursday, with gusty winds and colder temperatures for
Friday. Strong high pressure then returns for next weekend.


.DISCUSSION...Another long wave ridge over the southwestern United
States begins to take shape today, lasting through most the forecast
period. This ridge will be interrupted late Thursday and Friday as a
weak and splitting s/wv moves through the Great Basin. Impacts here
will be increased southwest winds for our area, along with moderate
cooling Friday. The ridge then promptly rebuilds heading into next
weekend. Little or no precipitation expected for the next 7 days.


.AVIATION...For the 12Z package...Expect VFR conditions over the
next 24 hours. Surface winds will be generally light for most
locations, though some TAF sites may see locally breezy northeast
winds. Aviation discussion not updated for amendments.


.FIRE WEATHER...High pressure will lead to dry weather and warming
daytime temperatures. Ventilation today remains poor to fair under
strong inversions and light winds. Similar conditions are expected

Thursday through Saturday...A fast moving, dry weather system will
bring gusty southwest winds Thursday and Friday. Lighter winds and
above normal temperatures return for the weekend.






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