Area Forecast Discussion
Issued by NWS Flagstaff, AZ

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FXUS65 KFGZ 212211

Area Forecast Discussion
National Weather Service Flagstaff AZ
311 PM MST Sat Apr 21 2018

.SYNOPSIS...Warmer temperatures, lighter winds, and mostly dry
conditions can be expected through at least the middle of next


.DISCUSSION...Weak high pressure moving over northern Arizona
today brought much warmer temperatures and clear skies to many
locations. Flagstaff and the Grand Canyon Airports were 26 and 24
degrees warmer this afternoon than yesterday afternoon. Winds were
generally out of the northwest to north with a few gust to around
20 MPH.

A weak area of low pressure off the southern California Coast will
move across southern Arizona tomorrow and Sunday night. This will
bring just enough moisture and lift for a slight chance of
showers over the White Mountains.

High pressure will build back over the area on Monday and Tuesday
with high temperatures running around 5 degrees above average for
this time of year.

A trough of low pressure will slide down the east side of the
Rockies and into Texas Wednesday through Friday. This will bring
enough moisture and lift for a slight chance of afternoon showers
or thunderstorms for the high terrain of Apache County including
the White Mountains Wednesday for this time period. Typical
springtime afternoon breezes can be expected during this time.


.AVIATION...For the 00Z package...Expect VFR conditions across
northern Arizona for the next 24 hrs. Generally light and variable
winds are anticipated tonight, with light and mostly southwest winds
during the daylight hours Sunday. Aviation discussion not updated
for TAF amendments.


.FIRE WEATHER...Warmer than normal temperatures will develop
Sunday and Monday with predominantly southwest winds.

Tuesday through Thursday...Warm and dry conditions are expected
through midweek with typical spring afternoon breezes. A slight
chance of thunderstorms may be possible Wednesday and Thursday over
the White Mountains.






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