092  
FNUS55 KTWC 042036  
FWFTWC  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA  
NATIONAL WEATHER SERVICE TUCSON AZ  
136 PM MST TUE AUG 4 2026  
 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY  
TERRAIN DRIVEN WINDS  
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
   
DISCUSSION
 
AN ACTIVE MONSOON PERIOD LOOKS FAVORABLE THIS  
WEEK WITH DAILY CHANCES FOR SHOWERS AND THUNDERSTORMS EACH  
AFTERNOON AND EVENING, WITH DAY TO DAY VARIABILITY. MINIMUM  
RELATIVE HUMIDITY VALUES WILL LIKELY REMAIN ABOVE 25-40 PERCENT  
THROUGH THE WEEK WITH TEMPERATURES 2-4 DEGREES ABOVE NORMAL.  
OUTSIDE OF THUNDERSTORMS, WINDS TERRAIN DRIVEN TO AROUND 10 MPH  
WITH OCCASIONAL AFTERNOON GUSTS TO 25 MPH.  
 
AZZ150-051415-  
ARIZONA FIRE WEATHER ZONE 150  
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-  
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-  
136 PM MST TUE AUG 4 2026  
   
TONIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT) THEN BECOMING  
MOSTLY CLOUDY (65-75 PCT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* CHANCE OF PRECIP.........20 PCT.  
* CHANCE OF THUNDER........20 PCT.  
* MIN TEMPERATURE..........73 TO 83 DEGS.  
24 HR TREND...........LITTLE CHANGE.  
* MAX HUMIDITY.............66 TO 76 PCT.  
24 HR TREND...........UP 1 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 15 MPH SHIFTING TO THE  
SOUTH AFTER MIDNIGHT.  
* 10000 FT MSL WIND........NORTHEAST 15 TO 20 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT) THEN BECOMING  
PARTLY CLOUDY (25-35 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........95 TO 105 DEGS.  
24 HR TREND...........DOWN 2 TO 5 DEGS.  
* MIN HUMIDITY.............32 TO 42 PCT.  
24 HR TREND...........UP 2 TO 5 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH SHIFTING TO THE WEST  
IN THE AFTERNOON.  
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.  
* MIXING HEIGHT............7449 FT AGL.  
* TRANSPORT WINDS..........SOUTH 12 KNOTS SHIFTING TO THE WEST 10  
KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....VERY GOOD (74490 KNOT-FT).  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* CHANCE OF PRECIP.........20 PCT.  
* CHANCE OF THUNDER........20 PCT.  
* MIN TEMPERATURE..........73 TO 83 DEGS.  
24 HR TREND...........LITTLE CHANGE.  
* MAX HUMIDITY.............64 TO 74 PCT.  
24 HR TREND...........UP 4 TO 8 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH IN THE EVENING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.  
   
THURSDAY
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING  
PARTLY CLOUDY (20-30 PCT).  
* CHANCE OF PRECIP.........0 PCT.  
* CHANCE OF THUNDER........0 PCT.  
* MAX TEMPERATURE..........98 TO 108 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MIN HUMIDITY.............27 TO 37 PCT.  
24 HR TREND...........DOWN 2 TO 5 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING WEST AROUND 10 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.  
* MIXING HEIGHT............7996 FT AGL.  
* TRANSPORT WINDS..........WEST 8 TO 9 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (71964 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 74 TO 84. HIGHS 100 TO 110. LIGHT WINDS.  
MINIMUM HUMIDITY 19 TO 29 PCT.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 74 TO 84. HIGHS 100 TO 110. LIGHT WINDS.  
MINIMUM HUMIDITY 17 TO 27 PCT.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 73 TO 83. HIGHS 97 TO 107. LIGHT WINDS. MINIMUM HUMIDITY  
22 TO 32 PCT.    
MONDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 72 TO 82. HIGHS 95 TO 105.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 72 TO 82. HIGHS 94 TO 104.  
 
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT  
LOCATION (2550 MSL)  
 

 
 
AZZ151-051415-  
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-  
136 PM MST TUE AUG 4 2026  
   
TONIGHT
 
 
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT) THEN BECOMING  
MOSTLY CLOUDY (55-65 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* CHANCE OF PRECIP.........40 PCT.  
* CHANCE OF THUNDER........40 PCT.  
* MIN TEMPERATURE..........65 TO 75 DEGS.  
24 HR TREND...........DOWN 1 DEG.  
* MAX HUMIDITY.............79 TO 89 PCT.  
24 HR TREND...........UP 8 TO 12 PCT.  
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.  
* 10000 FT MSL WIND........NORTH 15 TO 20 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........30 PCT.  
* CHANCE OF THUNDER........30 PCT.  
* MAX TEMPERATURE..........89 TO 99 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MIN HUMIDITY.............38 TO 48 PCT.  
24 HR TREND...........UP 3 TO 6 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH.  
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.  
* MIXING HEIGHT............7007 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 9 TO 11 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (77077 KNOT-FT).  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* CHANCE OF PRECIP.........40 PCT.  
* CHANCE OF THUNDER........40 PCT.  
* MIN TEMPERATURE..........65 TO 75 DEGS.  
24 HR TREND...........LITTLE CHANGE.  
* MAX HUMIDITY.............76 TO 86 PCT.  
24 HR TREND...........LITTLE CHANGE.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH IN THE EVENING  
BECOMING LIGHT.  
* 10000 FT MSL WIND........NORTH AROUND 15 MPH SHIFTING TO THE  
NORTHEAST AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING  
PARTLY CLOUDY (25-35 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........20 PCT.  
* CHANCE OF THUNDER........20 PCT.  
* MAX TEMPERATURE..........91 TO 101 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MIN HUMIDITY.............32 TO 42 PCT.  
24 HR TREND...........DOWN 2 TO 5 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.  
* MIXING HEIGHT............7490 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 8 TO 9 KNOTS.  
* VENTILATION CATEGORY.....GOOD (67410 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
FRIDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS AND SLIGHT  
CHANCE OF SHOWERS. LOWS 66 TO 76. HIGHS 92 TO 102. LIGHT WINDS.  
MINIMUM HUMIDITY 27 TO 37 PCT.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 66 TO 76. HIGHS 93 TO 103. LIGHT WINDS.  
MINIMUM HUMIDITY 24 TO 34 PCT.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 66 TO 76. HIGHS 91 TO 101. LIGHT WINDS. MINIMUM HUMIDITY  
26 TO 36 PCT.    
MONDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 65 TO 75. HIGHS 89 TO 99.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS AND SLIGHT  
CHANCE OF SHOWERS. LOWS 64 TO 74. HIGHS 87 TO 97.  
 
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION  
(3500 MSL)  
 

 
 
AZZ152-051415-  
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-  
136 PM MST TUE AUG 4 2026  
   
TONIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS BEFORE MIDNIGHT.  
* CHANCE OF PRECIP.........50 PCT.  
* CHANCE OF THUNDER........50 PCT.  
* MIN TEMPERATURE..........64 TO 74 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MAX HUMIDITY.............75 TO 85 PCT.  
24 HR TREND...........UP 39 TO 43 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.  
* 10000 FT MSL WIND........NORTH 15 TO 20 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........40 PCT.  
* CHANCE OF THUNDER........40 PCT.  
* MAX TEMPERATURE..........91 TO 101 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MIN HUMIDITY.............29 TO 39 PCT.  
24 HR TREND...........DOWN 2 TO 5 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.  
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.  
* MIXING HEIGHT............6482 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 12 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (77784 KNOT-FT).  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* CHANCE OF PRECIP.........40 PCT.  
* CHANCE OF THUNDER........40 PCT.  
* MIN TEMPERATURE..........65 TO 75 DEGS.  
24 HR TREND...........UP 1 DEG.  
* MAX HUMIDITY.............73 TO 83 PCT.  
24 HR TREND...........DOWN 33 TO 37 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.  
* 10000 FT MSL WIND........NORTH 10 TO 15 MPH.  
   
THURSDAY
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING  
PARTLY CLOUDY (40-50 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........30 PCT.  
* CHANCE OF THUNDER........30 PCT.  
* MAX TEMPERATURE..........93 TO 103 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MIN HUMIDITY.............24 TO 34 PCT.  
24 HR TREND...........DOWN 3 TO 7 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.  
* MIXING HEIGHT............7217 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 9 TO 10 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (72170 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 65 TO 75. HIGHS 93 TO 103. LIGHT WINDS.  
MINIMUM HUMIDITY 22 TO 32 PCT.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 65 TO 75. HIGHS 93 TO 103. LIGHT WINDS.  
MINIMUM HUMIDITY 19 TO 29 PCT.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 65 TO 75. HIGHS 93 TO 103. LIGHT WINDS.  
MINIMUM HUMIDITY 19 TO 29 PCT.    
MONDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 65 TO 75. HIGHS 92 TO 102.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 64 TO 74. HIGHS 90 TO 100.  
 
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)  
 

 
 
AZZ153-051415-  
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-  
136 PM MST TUE AUG 4 2026  
   
TONIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* CHANCE OF PRECIP.........40 PCT.  
* CHANCE OF THUNDER........40 PCT.  
* MIN TEMPERATURE..........59 TO 69 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MAX HUMIDITY.............65 TO 75 PCT.  
24 HR TREND...........UP 3 TO 6 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........50 PCT.  
* CHANCE OF THUNDER........50 PCT.  
* MAX TEMPERATURE..........83 TO 93 DEGS.  
24 HR TREND...........DOWN 2 TO 5 DEGS.  
* MIN HUMIDITY.............26 TO 36 PCT.  
24 HR TREND...........UP 3 TO 7 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.  
* MIXING HEIGHT............7639 FT AGL.  
* TRANSPORT WINDS..........NORTH 12 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (91668 KNOT-FT).  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........30 PCT.  
* CHANCE OF THUNDER........30 PCT.  
* MIN TEMPERATURE..........59 TO 69 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MAX HUMIDITY.............59 TO 69 PCT.  
24 HR TREND...........UP 1 TO 4 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........NORTHEAST 15 TO 20 MPH.  
   
THURSDAY
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........50 PCT.  
* CHANCE OF THUNDER........50 PCT.  
* MAX TEMPERATURE..........83 TO 93 DEGS.  
24 HR TREND...........UP 1 DEG.  
* MIN HUMIDITY.............24 TO 34 PCT.  
24 HR TREND...........DOWN 2 TO 5 PCT.  
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING WEST AROUND 10 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL WIND........EAST AROUND 10 MPH SHIFTING TO THE SOUTH  
IN THE AFTERNOON.  
* MIXING HEIGHT............7291 FT AGL.  
* TRANSPORT WINDS..........NORTH 8 KNOTS SHIFTING TO THE WEST 10  
KNOTS IN THE AFTERNOON.  
* VENTILATION CATEGORY.....VERY GOOD (72910 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 58 TO 68. HIGHS 83 TO 93. LIGHT WINDS.  
MINIMUM HUMIDITY 21 TO 31 PCT.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 57 TO 67. HIGHS 84 TO 94. LIGHT WINDS.  
MINIMUM HUMIDITY 22 TO 32 PCT.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 58 TO 68. HIGHS 82 TO 92. LIGHT WINDS.  
MINIMUM HUMIDITY 23 TO 33 PCT.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 58 TO 68. HIGHS 83 TO 93.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 58 TO 68. HIGHS 81 TO 91.  
 
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND  
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)  
 

 
 
AZZ154-051415-  
ARIZONA FIRE WEATHER ZONE 154  
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST  
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-  
136 PM MST TUE AUG 4 2026  
   
TONIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........60 PCT.  
* CHANCE OF THUNDER........20 PCT.  
* MIN TEMPERATURE..........59 TO 69 DEGS.  
24 HR TREND...........DOWN 1 TO 4 DEGS.  
* MAX HUMIDITY.............77 TO 87 PCT.  
24 HR TREND...........UP 16 TO 20 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.  
* 10000 FT MSL WIND........NORTH 15 TO 20 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........20 PCT.  
* CHANCE OF THUNDER........20 PCT.  
* MAX TEMPERATURE..........79 TO 89 DEGS.  
24 HR TREND...........DOWN 2 TO 5 DEGS.  
* MIN HUMIDITY.............41 TO 51 PCT.  
24 HR TREND...........UP 4 TO 8 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.  
* 10000 FT MSL WIND........NORTHEAST AROUND 15 MPH DECREASING TO  
AROUND 5 MPH IN THE AFTERNOON.  
* MIXING HEIGHT............8765 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 10 TO 11 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (92032 KNOT-FT).  
   
WEDNESDAY NIGHT
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........50 PCT.  
* CHANCE OF THUNDER........50 PCT.  
* MIN TEMPERATURE..........59 TO 69 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MAX HUMIDITY.............71 TO 81 PCT.  
24 HR TREND...........DOWN 12 TO 16 PCT.  
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH.  
* 10000 FT MSL WIND........NORTH AROUND 10 MPH SHIFTING TO THE  
NORTHEAST AFTER MIDNIGHT.  
   
THURSDAY
 
 
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING  
PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* CHANCE OF PRECIP.........20 PCT.  
* CHANCE OF THUNDER........20 PCT.  
* MAX TEMPERATURE..........81 TO 91 DEGS.  
24 HR TREND...........UP 1 TO 4 DEGS.  
* MIN HUMIDITY.............34 TO 44 PCT.  
24 HR TREND...........DOWN 4 TO 8 PCT.  
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.  
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.  
* MIXING HEIGHT............10203 FT AGL.  
* TRANSPORT WINDS..........NORTHWEST 8 TO 9 KNOTS.  
* VENTILATION CATEGORY.....VERY GOOD (86725 KNOT-FT).  
   
FORECAST DAYS 3 THROUGH 7...
 
 
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG   
FRIDAY
 
PARTLY CLOUDY. CHANCE OF THUNDERSTORMS AND SLIGHT  
CHANCE OF SHOWERS. LOWS 60 TO 70. HIGHS 82 TO 92. LIGHT WINDS.  
MINIMUM HUMIDITY 30 TO 40 PCT.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 82 TO 92. LIGHT WINDS.  
MINIMUM HUMIDITY 27 TO 37 PCT.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 82 TO 92. LIGHT WINDS.  
MINIMUM HUMIDITY 27 TO 37 PCT.    
MONDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS 60 TO 70. HIGHS 80 TO 90.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS AND SLIGHT  
CHANCE OF SHOWERS. LOWS 58 TO 68. HIGHS 77 TO 87.  
 
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