FXUS65 KFGZ 201100

AFDFGZ



Area Forecast Discussion

National Weather Service Flagstaff AZ

400 AM MST Fri Mar 20 2026



.SYNOPSIS...Arizona will roast under a summer-like high pressure 

cell, with temperatures reaching 20 to 30 degrees above normal for 

the remainder of this week and into the weekend. Please exercise 

appropriate precautions if you are planning on any outdoor activity 

through the weekend.



&&



.DISCUSSION...An anomaly of a high pressure cell remains centered 

over Arizona today, before slightly weakening over this weekend. The 

ridge flattens out a bit early next week, but may amplify again by 

the middle and end of next week.



With the slight deamplification of the ridge comes increased 

southwest winds and with that, comes increased fire weather concerns 

as early as Saturday, continuing into next week.



Expect record breaking temperatures to persist, perhaps all the way 

through the forecast period. However, today will be the warmest day 

over the higher terrain, with Saturday peaking over the lower 

elevations as mixing increases, especially across the LCR.



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.AVIATION...Friday 20/06Z through Saturday 21/06Z...VFR conditions 

with VRB winds 5-10 kts.



OUTLOOK...Saturday 21/06Z through Monday 23/06Z...VFR conditions. 

Winds W/SW 10-15 kts on Saturday, subsiding to 5-10 kts on Sunday.



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.FIRE WEATHER...Friday and Saturday...Very dry and historically 

warm. Daytime temperatures 20-30 degrees above normal each day, with 

large diurnal swings each night. Minimum relative humidity values 

ranging from the single digits to low teens each day. Friday, expect 

west through southwest winds 5 to 15 mph from the Mogollon southwest 

and west, with northwest winds 5 to 10 mph northeast of the Mogollon 

Rim. Winds increase from the southwest at 15 to 25 mph on Saturday 

and this may lead to some localized fire weather concerns.

  

Sunday through Tuesday...Expect temperatures to decrease slightly 

during this period, but still remaining at least 20 degrees above 

normal. Large diurnal swings continue at night with minimum relative 

humidity values ranging from the single digits to low teens for each 

day. Daily winds ranging from the west through southwest at 10 to 20 

mph, with gusts to 25 mph. The continuation of unseasonable heat and 

very dry conditions will dry out fuels and may lead to continued 

localized fire weather concerns.



&&



.FGZ WATCHES/WARNINGS/ADVISORIES...



Extreme Heat Warning until 8 PM MST Sunday for AZZ006-037.



&&



$$



PUBLIC...Peterson

AVIATION...Humphreys

FIRE WEATHER...Peterson



For Northern Arizona weather information visit

weather.gov/flagstaff