Area forecast discussion 
National Weather Service Tucson Arizona 
310 am MST Friday Nov 28 2014 

Synopsis...expect dry conditions with warm daytime temperatures 
into early next week. A weakening Pacific storm system moving north 
of the area may then bring a few valley rain and mountain snow 
showers around the middle of next week. 


Discussion...are ready off to a warm start this morning. This 
mornings sounding showed a maximum temperature of 85 degrees for Tucson...which 
is the record for today set in 1945. Current forecast is slightly 
cooler at 82. Don't see need for an update at this point. For 
additional information see sections below. 


Previous discussion/issued at 310 am MST Fri/...high pressure 
aloft...which produced a very warm Thanksgiving day across the 
area...will weaken slightly today with highs similar what occurred 
on Turkey day. A few spots will also be near record highs for Nov 
28th. Gradual cooling trend this weekend with upper level flow 
becoming swly, this will allow some high clouds to move across the 
state...especially on Sunday. 

Large eastern Pacific low will push toward the West Coast early next 
week. Increasing clouds for the area on Monday and Tuesday as this 
system taps into some tropical moisture. Low ends probability of precipitation late Tuesday 
into Thursday as the upper low weakens and moves inland across the 
intermountain west. Gradually cooler next week but still remaining 
above normal. 


Aviation...valid through 29/18z. 
VFR. Generally light diurnal winds and clear skies will prevail through 
the period. Aviation discussion not updated for taf amendments. 


Fire weather...dry conditions with min relative humidity values in the teens and 
20s will continue into Tuesday. Temperatures running 5 to 15 degrees 
above normal through this weekend with highs returning to near or 
slightly above normal Tuesday through the end of the week. Winds 10 
to 20 miles per hour this morning will decrease to generally 10 miles per hour or less 
with typical diurnal trends through the weekend. A Pacific storm 
system...passing well north of the area...will bring a slight chance 
of showers to the region Tuesday through Thursday along with 
increasing relative humidity values. 


Twc watches/warnings/advisories...none. 



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