FXUS65 KFGZ 091729

AFDFGZ



Area Forecast Discussion

National Weather Service Flagstaff AZ

1029 AM MST Fri May 9 2025



.SYNOPSIS...An area of high pressure will bring above normal

temperatures and mostly dry conditions through the weekend.

However, there is a very slight chance for high elevation showers

on Saturday. A larger storm system will bring cooler and gustier 

conditions next week.



&&



.UPDATE...A warm and mostly sunny day is underway. Just enough 

moisture for some afternoon cumulus and perhaps a sprinkle near

the White Mountains. No forecast updates needed this morning.



&&



.PREV DISCUSSION /411 AM MST/...A strong ridge is over much of

the Southwest, resulting in above normal temperatures and mostly 

dry conditions. Expect daytime highs to land 5-10 degrees above 

normal through the weekend, with mostly light winds. There is a 

chance a smidge of moisture will creep into the state on Saturday,

as the ridge is more centered across western Arizona. Even with 

the potential weak moisture push, activity will likely be limited 

to higher terrain. And of this activity, we could see an isolated 

thunderstorm or two due to the daytime heating combined with any 

orographic lifting. 



A large area of low pressure is forecast to push down the

California Coast by the beginning of next week, weakening the

previously mentioned ridge. As a result, daytime highs will 

slowly drop to below normal and winds will increase out of the 

southwest. We could see gusts between 35-45 mph, with locally

stronger gusts across downslope areas. Dry conditions are expected

during this timeframe, but with the recent moisture, fire weather

concerns are minimal. Model guidance suggests that we'll remain 

under a deep trough pattern through much of next week, but 

moisture appears to stay north of our state. There's still time 

for things to change, but for now, expect cooler and windier 

conditions moving into next week.



&&



.AVIATION...Friday 09/18Z through Saturday 10/18Z..Expect VFR 

conditions and light, mainly easterly winds.



OUTLOOK...Saturday 10/18Z through Monday 12/18Z...Expect VFR 

conditions. Some daytime CU development, with bases AOA 10-12kft AGL 

each afternoon. ISOLD -SHRA/-TSRA may develop on Saturday afternoon 

over higher terrain. Sfc winds light and variable Saturday, turning 

SW15-25kts Sunday and increasing further Monday.



&&



.FIRE WEATHER...Friday and Saturday...Above normal temperatures and 

mostly dry conditions expected each day, outside of a slight chance 

for showers/thunderstorms across higher terrain on Saturday. Look 

for easterly winds 5 to 15 mph today, becoming more viable 

and less than 10 to 15 mph on Saturday.



Sunday through Tuesday...A gradual cooling trend will occur each 

day. Dry conditions will persist with minimum RH values generally 

20% or less. Southwest winds 10 to 20 mph on Sunday, increasing to 

15 to 30 mph, with gusts as high as 45 mph for Monday and especially 

for Tuesday.



&&



.FGZ WATCHES/WARNINGS/ADVISORIES...None.



&&



$$



PUBLIC...JJ/Konieczny

AVIATION...Konieczny

FIRE WEATHER...Peterson/Konieczny



For Northern Arizona weather information visit

weather.gov/flagstaff