532
FNUS55 KTWC 050919
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
219 AM MST WED AUG 5 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 20-40 PERCENT THROUGH THE WEEK
WITH TEMPERATURES 2-7 DEGREES ABOVE NORMAL. OUTSIDE OF
THUNDERSTORMS, WINDS TERRAIN DRIVEN TO AROUND 10 MPH WITH
OCCASIONAL AFTERNOON GUSTS TO 25 MPH.
AZZ150-052215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
219 AM MST WED AUG 5 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........96 TO 106 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............30 TO 40 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........EAST 10 TO 15 MPH.
* MIXING HEIGHT............7374 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 13 KNOTS SHIFTING TO THE WEST
10 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (73740 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT) THEN BECOMING
MOSTLY CLOUDY (55-65 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* 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 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT) THEN BECOMING
PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........97 TO 107 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 NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........EAST 10 TO 15 MPH.
* MIXING HEIGHT............7139 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 8 KNOTS SHIFTING TO THE
NORTHWEST 7 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (49973 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 76 TO 86. HIGHS 100 TO 110. LIGHT WINDS.
MINIMUM HUMIDITY 20 TO 30 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 76 TO 86. HIGHS 101 TO 111. LIGHT WINDS.
MINIMUM HUMIDITY 17 TO 27 PCT.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 75 TO 85. HIGHS 98 TO 108. LIGHT WINDS. MINIMUM HUMIDITY
21 TO 31 PCT.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 73 TO 83. 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)
AZZ151-052215-
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-
219 AM MST WED AUG 5 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MAX TEMPERATURE..........89 TO 99 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.
* MIXING HEIGHT............7138 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 10 TO 11 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (78518 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MIN TEMPERATURE..........65 TO 75 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............75 TO 85 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........NORTH AROUND 15 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING
PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........91 TO 101 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............31 TO 41 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............7139 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 7 TO 10 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (71390 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 SHOWERS AND THUNDERSTORMS.
LOWS 67 TO 77. HIGHS 92 TO 102. LIGHT WINDS. MINIMUM HUMIDITY
28 TO 38 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 67 TO 77. HIGHS 93 TO 103. LIGHT WINDS.
MINIMUM HUMIDITY 23 TO 33 PCT.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 66 TO 76. HIGHS 92 TO 102. 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 SHOWERS AND THUNDERSTORMS.
LOWS 65 TO 75. HIGHS 86 TO 96.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-052215-
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-
219 AM MST WED AUG 5 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MAX TEMPERATURE..........92 TO 102 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............28 TO 38 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............7139 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 13 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (92807 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* 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 34 TO 38 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH AROUND 10 MPH SHIFTING TO THE EAST
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..........93 TO 103 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............25 TO 35 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............7888 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 7 TO 10 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (78880 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 66 TO 76. HIGHS 94 TO 104. LIGHT WINDS.
MINIMUM HUMIDITY 23 TO 33 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 66 TO 76. HIGHS 93 TO 103. LIGHT WINDS.
MINIMUM HUMIDITY 19 TO 29 PCT.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 67 TO 77. HIGHS 93 TO 103. NORTHEAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 66 TO 76. HIGHS 92 TO 102.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 65 TO 75. HIGHS 89 TO 99.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-052215-
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-
219 AM MST WED AUG 5 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING
PARTLY CLOUDY (45-55 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........40 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............25 TO 35 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST AROUND 5 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
* MIXING HEIGHT............9827 FT AGL.
* TRANSPORT WINDS..........NORTH 12 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (117924 KNOT-FT).
TONIGHT
* 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...........LITTLE CHANGE.
* MAX HUMIDITY.............59 TO 69 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT) THEN BECOMING
MOSTLY CLOUDY (45-55 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING WEST AROUND 10 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........EAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT............7475 FT AGL.
* TRANSPORT WINDS..........NORTH 9 TO 12 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (89700 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 85 TO 95. LIGHT WINDS.
MINIMUM HUMIDITY 23 TO 33 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 59 TO 69. HIGHS 83 TO 93. LIGHT WINDS.
MINIMUM HUMIDITY 23 TO 33 PCT.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 59 TO 69. HIGHS 83 TO 93. 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)
AZZ154-052215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
219 AM MST WED AUG 5 2026
TODAY
* 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..........80 TO 90 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............39 TO 49 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........EAST AROUND 15 MPH BECOMING NORTHEAST
AROUND 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT............9918 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 11 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (109098 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MIN TEMPERATURE..........60 TO 70 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MAX HUMIDITY.............71 TO 81 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH AROUND 10 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 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..........82 TO 92 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............35 TO 45 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............10313 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 7 TO 10 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (87660 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 SHOWERS AND THUNDERSTORMS.
LOWS 61 TO 71. HIGHS 82 TO 92. LIGHT WINDS. MINIMUM HUMIDITY
32 TO 42 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 82 TO 92. LIGHT WINDS.
MINIMUM HUMIDITY 26 TO 36 PCT.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 82 TO 92. EAST WIND AROUND
15 MPH. MINIMUM HUMIDITY 27 TO 37 PCT.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 60 TO 70. HIGHS 79 TO 89.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 59 TO 69. HIGHS 77 TO 87.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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