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Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Thursday
• 
• High: 72 °
• Low: 37 °
• Clear

• Friday
• 
• High: 72 °
• Low: 37 °
• Clear

• Saturday
• 
• High: 70 °
• Low: 32 °
• Partly Cloudy

• Sunday
• 
• High: 68 °
• Low: 30 °
• Clear

• Monday
• 
• High: 70 °
• Low: 36 °
• Clear

Area forecast discussion 
National Weather Service Flagstaff Arizona 
329 PM MST Thursday may 23 2013 


Synopsis... 
a broad low pressure system will settle over the Pacific northwest 
through Memorial Day. This will produce periods of gusty 
southwest winds and dry conditions across northern Arizona. The 
strongest winds are expected into this evening with gusts of 40 
miles per hour over much of the Northland. 


&& 


Discussion... 
gusty winds are taking place across much of the Northland this 
afternoon...with observed gusts being commonly reported in the 35 
to 45 miles per hour range. This is all occurring as low pressure meanders 
across the Pacific northwest into the coming Holiday weekend. 
Winds...though definitely remaining breezy...are likely to weaken 
a notch for Friday and the weekend as pressure gradients loosen a 
skosh. Dry conditions and daytime temperatures near seasonal norms will 
accompany the breezy weather into early next week. By the middle 
of next week...extended ranges of the European model (ecmwf) and GFS suggest a 
potential low pressure system moving across the state. Our 
forecast for this scenario includes cooler daytime temperatures and 
chances for precipitation. 


&& 


Aviation... 
for the 00z package...winds sw15-30g40kts. Bldu possible across northestern 
Arizona through 02z. Winds decreasing below 15kts after 03-04z. Aviation 
discussion not updated for amendments. 


&& 


Fire weather... 
a broad trough of low pressure will remain across the western 
states through early next week bringing a continuation of breezy 
southwest winds and dry conditions. 


For Friday and Saturday...breezy southwest winds will continue but 
are not expected to exceed critical fire weather thresholds. 
Minimum relative humidities will remain below 10 percent with only 
moderate overnight recovery. 


Sunday through Tuesday...the trough will remain in place across 
the western states and allow breezy southwest winds to continue 
along with very low minimum relative humidities. Winds may 
approach but are not expected to exceed critical fire weather 
conditions on Sunday and Monday. 


As the trough finally pushes to the east there will be a chance of 
thunderstorms and lightning on Tuesday. 


&& 


Fgz watches/warnings/advisories... 


Red flag warning until 8 PM MST this evening for azz104>117- 
137>140. 


Wind Advisory until 8 PM MST this evening for azz004>017- 
038>040. 


&& 


$$ 


Public.........Kd 
aviation.......db 
fire weather...db 


For northern Arizona weather information visit 
weather.Gov/Flagstaff