026  
FNUS55 KTWC 132020  
FWFTWC  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA  
NATIONAL WEATHER SERVICE TUCSON AZ  
120 PM MST SAT SEP 13 2025  
 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY  
TERRAIN DRIVEN WINDS  
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
   
DISCUSSION
 
MINIMUM RH VALUES WILL BE IN THE 20-35 PERCENT  
RANGE THIS AFTERNOON, LOWERING INTO THE 15-30 PERCENT RANGE TOMORROW  
AND MONDAY, THEN BACK INTO THE 20-35 PERCENT RANGE. SCATTERED  
SHOWERS AND THUNDERSTORMS ARE EXPECTED MAINLY FOR COCHISE COUNTY AND  
EAST SANTA CRUZ COUNTY THIS AFTERNOON. THUNDERSTORMS WILL HAVE A  
RISK OF VERY STRONG GUSTY WINDS, HAIL, AND HEAVY RAINFALL. DRY AREA-  
WIDE TOMORROW, THEN A SLIGHT CHANCE OF THUNDERSTORMS SOUTH AND EAST  
OF TUCSON RETURN AGAIN NEXT WEEK. OUTSIDE OF THUNDERSTORM OUTFLOWS,  
EXPECT 20-FOOT WINDS TO BE 15 MPH OR LESS, WITH SOME AFTERNOON/EARLY  
EVENING GUSTS TO AROUND 25 MPH.  
 
AZZ150-141415-  
ARIZONA FIRE WEATHER ZONE 150  
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-  
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-  
120 PM MST SAT SEP 13 2025  
   
TONIGHT
 
 
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........62 TO 72 DEGS.  
24 HR TREND...........LITTLE CHANGE.  
* MAX HUMIDITY.............43 TO 53 PCT.  
24 HR TREND...........DOWN 10 TO 14 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.  
   
SUNDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........89 TO 99 DEGS.  
24 HR TREND...........UP 1 DEG.  
* MIN HUMIDITY.............20 TO 30 PCT.  
24 HR TREND...........LITTLE CHANGE.  
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH IN THE MORNING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.  
* MIXING HEIGHT............9237 FT AGL.  
* TRANSPORT WINDS..........SOUTH 9 TO 10 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (92370 KNOT-FT).  
   
SUNDAY NIGHT
 
 
* SKY/WEATHER..............MOSTLY CLEAR (20-30 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........65 TO 75 DEGS.  
24 HR TREND...........UP 3 TO 6 DEGS.  
* MAX HUMIDITY.............38 TO 48 PCT.  
24 HR TREND...........DOWN 4 TO 8 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.  
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.  
   
MONDAY
 
 
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........92 TO 102 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MIN HUMIDITY.............20 TO 30 PCT.  
24 HR TREND...........LITTLE CHANGE.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.  
* 10000 FT MSL WIND........SOUTH AROUND 20 MPH DECREASING TO AROUND  
10 MPH IN THE AFTERNOON.  
* MIXING HEIGHT............9972 FT AGL.  
* TRANSPORT WINDS..........SOUTHEAST 6 KNOTS SHIFTING TO THE  
SOUTHWEST 7 KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (69804 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
TUESDAY
 
MOSTLY CLEAR. LOWS 68 TO 78. HIGHS 94 TO 104. LIGHT  
WINDS. MINIMUM HUMIDITY 19 TO 29 PCT.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 68 TO 78. HIGHS 92 TO 102. LIGHT WINDS.  
MINIMUM HUMIDITY 20 TO 30 PCT.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 69 TO 79. HIGHS 91 TO 101. LIGHT WINDS.  
MINIMUM HUMIDITY 22 TO 32 PCT.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 69 TO 79. HIGHS 88 TO 98.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 68 TO 78. HIGHS 88 TO 98.  
 
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT  
LOCATION (2550 MSL)  
 

 
 
AZZ151-141415-  
ARIZONA FIRE WEATHER ZONE 151  
WESTERN HALF DESERT GRASSLANDS FDRA INCLUDING ELEVATIONS UP TO  
5500 FEET IN SOUTHEAST CORNER OF PINAL COUNTY-  
EXTREME EASTERN PIMA COUNTY-WESTERN THIRD OF COCHISE COUNTY-  
SANTA CRUZ COUNTY-TDC-  
120 PM MST SAT SEP 13 2025  
   
TONIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT).  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........57 TO 67 DEGS.  
24 HR TREND...........DOWN 1 DEG.  
* MAX HUMIDITY.............62 TO 72 PCT.  
24 HR TREND...........DOWN 11 TO 15 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.  
   
SUNDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........82 TO 92 DEGS.  
24 HR TREND...........UP 1 DEG.  
* MIN HUMIDITY.............25 TO 35 PCT.  
24 HR TREND...........DOWN 3 TO 6 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.  
* MIXING HEIGHT............8530 FT AGL.  
* TRANSPORT WINDS..........SOUTHEAST 7 KNOTS SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (59710 KNOT-FT).  
   
SUNDAY NIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........59 TO 69 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MAX HUMIDITY.............59 TO 69 PCT.  
24 HR TREND...........DOWN 4 TO 8 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH IN THE EVENING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........SOUTH 10 TO 15 MPH.  
   
MONDAY
 
 
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........10 PCT.  
* MAX TEMPERATURE..........86 TO 96 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MIN HUMIDITY.............23 TO 33 PCT.  
24 HR TREND...........DOWN 1 TO 4 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTH AROUND 10 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL WIND........SOUTH AROUND 15 MPH BECOMING SOUTHWEST  
AROUND 5 MPH IN THE AFTERNOON.  
* MIXING HEIGHT............9660 FT AGL.  
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE SOUTHWEST 7  
KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (67620 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 86 TO 96. LIGHT WINDS.  
MINIMUM HUMIDITY 25 TO 35 PCT.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 85 TO 95. LIGHT WINDS.  
MINIMUM HUMIDITY 24 TO 34 PCT.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 84 TO 94. LIGHT WINDS.  
MINIMUM HUMIDITY 23 TO 33 PCT.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 61 TO 71. HIGHS 83 TO 93.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 83 TO 93.  
 
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION  
(3500 MSL)  
 

 
 
AZZ152-141415-  
ARIZONA FIRE WEATHER ZONE 152  
EASTERN HALF DESERT GRASSLANDS FDRA INCLUDING ELEVATIONS UP TO  
5500 FEET IN SOUTHWEST GRAHAM COUNTY AND EASTERN TWO THIRDS OF  
COCHISE COUNTY-SOUTHERN SAN CARLOS RESERVATION-  
SOUTHERN GREENLEE COUNTY BELOW 5000 FEET-TDC-  
120 PM MST SAT SEP 13 2025  
   
TONIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........10 PCT.  
* MIN TEMPERATURE..........56 TO 66 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MAX HUMIDITY.............64 TO 74 PCT.  
24 HR TREND...........DOWN 17 TO 21 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH IN THE EVENING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.  
   
SUNDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........80 TO 90 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MIN HUMIDITY.............24 TO 34 PCT.  
24 HR TREND...........DOWN 12 TO 16 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING WEST AROUND 10 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.  
* MIXING HEIGHT............7210 FT AGL.  
* TRANSPORT WINDS..........EAST 5 KNOTS SHIFTING TO THE SOUTHWEST 7  
KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (50470 KNOT-FT).  
   
SUNDAY NIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........58 TO 68 DEGS.  
24 HR TREND...........UP 1 DEG.  
* MAX HUMIDITY.............55 TO 65 PCT.  
24 HR TREND...........DOWN 10 TO 14 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH IN THE EVENING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.  
   
MONDAY
 
 
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT).  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........84 TO 94 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MIN HUMIDITY.............23 TO 33 PCT.  
24 HR TREND...........DOWN 1 PCT.  
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE  
SOUTHEAST IN THE AFTERNOON.  
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.  
* MIXING HEIGHT............8421 FT AGL.  
* TRANSPORT WINDS..........EAST 7 KNOTS SHIFTING TO THE SOUTH IN  
THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (58947 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 84 TO 94. LIGHT WINDS.  
MINIMUM HUMIDITY 26 TO 36 PCT.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 59 TO 69. HIGHS 83 TO 93. LIGHT WINDS.  
MINIMUM HUMIDITY 23 TO 33 PCT.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 84 TO 94. LIGHT WINDS.  
MINIMUM HUMIDITY 21 TO 31 PCT.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 82 TO 92.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 82 TO 92.  
 
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)  
 

 
 
AZZ153-141415-  
ARIZONA FIRE WEATHER ZONE 153  
NORTHERN GRAHAM COUNTY-NORTHERN GREENLEE COUNTY-  
WHITE AND GILA MOUNTAINS-APACHE SITGREAVES NF-  
SOUTHERN SAN CARLOS RESERVATION ABOVE 5000 FEET-SDC-  
120 PM MST SAT SEP 13 2025  
   
TONIGHT
 
 
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........46 TO 56 DEGS.  
24 HR TREND...........DOWN 3 TO 6 DEGS.  
* MAX HUMIDITY.............47 TO 57 PCT.  
24 HR TREND...........DOWN 36 TO 40 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH IN THE EVENING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.  
   
SUNDAY
 
 
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........72 TO 82 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MIN HUMIDITY.............17 TO 27 PCT.  
24 HR TREND...........DOWN 16 TO 20 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHWEST AROUND 10  
MPH IN THE AFTERNOON.  
* 10000 FT MSL WIND........WEST 5 TO 10 MPH.  
* MIXING HEIGHT............7533 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 7 KNOTS SHIFTING TO THE  
SOUTHWEST 9 KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (67797 KNOT-FT).  
   
SUNDAY NIGHT
 
 
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........49 TO 59 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MAX HUMIDITY.............45 TO 55 PCT.  
24 HR TREND...........DOWN 4 TO 8 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH SHIFTING TO THE  
NORTHEAST AFTER MIDNIGHT.  
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.  
   
MONDAY
 
 
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........74 TO 84 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MIN HUMIDITY.............21 TO 31 PCT.  
24 HR TREND...........UP 2 TO 5 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTH AROUND 10 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.  
* MIXING HEIGHT............9081 FT AGL.  
* TRANSPORT WINDS..........NORTHEAST 7 KNOTS SHIFTING TO THE  
SOUTHWEST 8 KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....VERY GOOD (72648 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 52 TO 62. HIGHS 74 TO 84. LIGHT WINDS.  
MINIMUM HUMIDITY 26 TO 36 PCT.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 51 TO 61. HIGHS 74 TO 84. LIGHT WINDS.  
MINIMUM HUMIDITY 24 TO 34 PCT.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 51 TO 61. HIGHS 74 TO 84. LIGHT WINDS.  
MINIMUM HUMIDITY 23 TO 33 PCT.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 53 TO 63. HIGHS 71 TO 81.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 52 TO 62. HIGHS 71 TO 81.  
 
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)  
 

 
 
AZZ154-141415-  
ARIZONA FIRE WEATHER ZONE 154  
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST  
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-  
120 PM MST SAT SEP 13 2025  
   
TONIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........10 PCT.  
* MIN TEMPERATURE..........52 TO 62 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MAX HUMIDITY.............67 TO 77 PCT.  
24 HR TREND...........DOWN 15 TO 19 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.  
   
SUNDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........71 TO 81 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MIN HUMIDITY.............34 TO 44 PCT.  
24 HR TREND...........DOWN 12 TO 16 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.  
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.  
* MIXING HEIGHT............7294 FT AGL.  
* TRANSPORT WINDS..........SOUTH 6 KNOTS SHIFTING TO THE SOUTHWEST  
7 KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....GOOD (51058 KNOT-FT).  
   
SUNDAY NIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MIN TEMPERATURE..........54 TO 64 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MAX HUMIDITY.............59 TO 69 PCT.  
24 HR TREND...........DOWN 7 TO 11 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.  
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.  
   
MONDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT). SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........10 PCT.  
* CHANCE OF THUNDER........10 PCT.  
* MAX TEMPERATURE..........74 TO 84 DEGS.  
24 HR TREND...........UP 2 TO 5 DEGS.  
* MIN HUMIDITY.............34 TO 44 PCT.  
24 HR TREND...........DOWN 1 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH.  
* 10000 FT MSL WIND........SOUTH 5 TO 10 MPH.  
* MIXING HEIGHT............9102 FT AGL.  
* TRANSPORT WINDS..........EAST 7 KNOTS SHIFTING TO THE SOUTH 8  
KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....VERY GOOD (72816 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 56 TO 66. HIGHS 73 TO 83. LIGHT WINDS.  
MINIMUM HUMIDITY 37 TO 47 PCT.    
WEDNESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 54 TO 64. HIGHS 73 TO 83. LIGHT WINDS.  
MINIMUM HUMIDITY 31 TO 41 PCT.    
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 55 TO 65. HIGHS 73 TO 83. LIGHT WINDS.  
MINIMUM HUMIDITY 30 TO 40 PCT.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 56 TO 66. HIGHS 72 TO 82.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 55 TO 65. HIGHS 72 TO 82.  
 
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE  
 

 
 
VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab AZ Page Main Text Page