AREA FORECAST DISCUSSION

 
 FXUS65 KTWC 231617
 AFDTWC
 
 AREA FORECAST DISCUSSION
 NATIONAL WEATHER SERVICE TUCSON AZ
 915 AM MST MON 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.
 
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 .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. 
 
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 .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.
 
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 .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.
 
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 .TWC WATCHES/WARNINGS/ADVISORIES...NONE.
 
 

 
 WEATHER.GOV/TUCSON