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AREA FORECAST DISCUSSION

 
 FXUS65 KTWC 082052
 AFDTWC
 
 AREA FORECAST DISCUSSION
 NATIONAL WEATHER SERVICE TUCSON AZ
 152 PM MST FRI MAY 8 2009
 
 .SYNOPSIS...HIGH PRESSURE ALOFT WILL BRING DRY WEATHER AND MUCH 
 ABOVE NORMAL TEMPERATURES TO SOUTHERN ARIZONA THROUGH THE MIDDLE OF  
 NEXT WEEK.
 
 &&
 
 .DISCUSSION...ANOTHER HOT 100 PLUS DEGREE DAY ACROSS MUCH OF 
 SOUTHEAST ARIZONA THIS AFTERNOON UNDER THE INFLUENCE OF A 
 SUBTROPICAL RIDGE OF HIGH PRESSURE TO OUR SOUTH WITH A FEW BREEZES. 
 THIS RIDGE WILL REMAIN IN CONTROL OF OUR WEATHER THROUGH THE 
 UPCOMING WEEKEND WITH DRY WEATHER AND HIGH TEMPERATURES AVERAGING 8 
 TO 13 DEGREES ABOVE NORMAL INTO THE EARLY PART OF NEXT WEEK. THERE 
 WILL BE A FEW WEAK SHORTWAVE DISTURBANCES THAT MOVE THROUGH FROM 
 TIME TO TIME BRINGING A FEW HIGH CLOUDS...THE MOST NOTABLE ONE LATE 
 MONDAY NIGHT INTO TUESDAY. HOWEVER...HEIGHTS AND THICKNESSES ONLY 
 NUDGE DOWN EVER SO SLIGHTLY...THUS ONLY EXPECTING PERHAPS A DEGREE 
 OR TWO OF COOLING BY THE MIDDLE OF NEXT WEEK. 
 
 &&
 
 .FIRE WEATHER...STRONG HIGH PRESSURE ALOFT WILL BRING DRY CONDITIONS 
 INTO NEXT WEEK. DAILY MINIMUM RELATIVE HUMIDITIES WILL BE LESS THAN 
 15 PERCENT...AND NIGHTTIME RECOVERIES WILL BE POOR. 20-FOOT WINDS 
 WILL BE MOSTLY LESS THAN 15 MPH ALTHOUGH EXPECT SOME GUSTS DURING 
 THE AFTERNOONS AND EARLY EVENINGS DUE TO STRONG DAYTIME HEATING.
 
 &&
 
 .AVIATION...CLEAR SKIES WILL CONTINUE UNDER HIGH PRESSURE. NORMAL 
 DIURNAL WIND TRENDS ENHANCED TO BREEZY LEVELS AT TIMES IN THE 
 AFTERNOONS WITH STRONG HEATING. AVIATION DISCUSSION NOT UPDATED FOR 
 TAF AMENDMENTS.
 
 &&
 
 .TWC WATCHES/WARNINGS/ADVISORIES...NONE.
 
 

 
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