FXUS65 KTWC 270748

AFDTWC



Area Forecast Discussion

National Weather Service Tucson AZ

1248 AM MST Mon Oct 27 2025



.SYNOPSIS...Dry conditions and high clouds at times will prevail 

through the end of the week. High temperatures warm to several 

degrees above normal, except across eastern areas on Wednesday into 

Thursday when cooler air pushes in from the east. Some breezy east 

winds Wednesday in locations exposed to easterly winds. 



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.DISCUSSION...High pressure aloft will remain in control of the 

weather across southeast Arizona through the weekend. Flat ridging 

today, with an amplified ridge by the middle of the week, flattening 

out at the end of work week. Even stronger ridging is expected late 

in the weekend into early the following week, with the Climate 

Prediction Center forecasting a 70-80 percent chance of above normal 

temperatures in both the 6-10 and 8-14 day forecasts for southeast 

Arizona. 



Overall, the next 7-10 days will have generally light winds, high 

clouds at times and warmer high temperatures. High temperatures will 

warm to 3-7 degrees above normal all this week, except across 

Cochise, Graham and Greenlee counties on Wednesday into Thursday. 

Highs will be in the upper 80s to around 90 degrees in the lower 

deserts from Tucson westward and in the lower to mid 80s across the 

lower elevation eastern valleys, except on Wednesday into Thursday 

when several degrees of cooling are forecast for Cochise, Graham and 

Greenlee counties as the flow switches around to an easterly 

direction pulling in cooler air from the east. Highs on Wednesday 

across these eastern locations will be in the mid to upper 70s, 

which is 2-5 degrees below normal. The latest guidance numbers for 

the east winds Wednesday currently has sustained speeds of around 15 

mph, gusting to between 25-30 mph in locations exposed to easterly 

winds. These forecasted wind speeds may increase as we get closer to 

Wednesday, as that has been the trend over the last couple of model 

runs.   

  

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.AVIATION...Valid through 28/12Z

Clear skies/SKC conditions thru the forecast period. SFC wind less 

than 10 kts, favoring a WLY/NWLY direction during the afternoon and 

early evening hours and variable in direction at other times. 

Aviation discussion not updated for TAF amendments.



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.FIRE WEATHER...Dry conditions are expected the next 7 days. High 

temperatures will warm to 3-7 degrees above normal in most locations 

this week, although several degrees of cooling will occur Wednesday 

across eastern areas (Cochise, Graham and Greenlee counties) as 

easterly winds overspread the area. 20-foot winds will generally be 

15 mph or less, with occasional gusts to 20-25 mph through the end 

of the week, except on Wednesday. 20-foot winds on Wednesday will be 

east-southeast at around 15 mph, gusting to 25-30 mph. Minimum RH 

values will be in the 12-22 percent range in most locations this 

week. 



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.TWC WATCHES/WARNINGS/ADVISORIES...

None.

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$$



Zell



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