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fxus65 ktwc 231617 
afdtwc 


Area forecast discussion 
National Weather Service Tucson Arizona 
915 am MST Monday Nov 23 2009 


Synopsis...weather systems will continue to pass north of our area 
and bring occasional patches of high clouds. Southeast Arizona will 
remain dry with warm daytime temperatures continuing. 


&& 


Discussion...another chamber of Commerce day for Southeast Arizona 
under lots of sunshine. Will see some thin wisps of cirrus float by 
in the dry northwest flow aloft. Slightly lower thickness values 
will result in highs being at or a degree or two cooler than Sunday. 


Slow warming trend into Thursday...when the warmest temperatures of 
the week will occur...then the potential to be significantly cooler 
during the latter part of the upcoming weekend into early next week. 
More on this in the afternoon discussion once the entire 12z model 
package is in and has been digested. 


&& 


Aviation...skc-few cirrus clouds. Normal diurnal wind trends are 
expected at the terminal sites...with surface winds generally less 
than 10 kts. Aviation discussion not updated for taf amendments. 


&& 


Fire weather...a weather system moving through the northern and 
central rockies will result in a little cooler temperatures across 
Southeast Arizona the next day or two...as dry conditions continue. 
There may be some afternoon and early evening breezes across the 
higher terrain to the north and east of Tucson...however...winds are 
expected to remain well below critical fire weather thresholds. 


&& 


Twc watches/warnings/advisories...none. 


$$ 


Weather.Gov/Tucson