411
FNUS55 KTWC 181559
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
859 AM MST THU JUN 18 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
WINDS WILL REMAIN WEST/NORTHWEST THROUGH THIS WEEK WITH SPEEDS
OF 10-20 MPH AND GUSTS 25-30 MPH ACROSS MUCH OF THE AREA WITH
STRONGER SPEEDS OF 15-25 MPH AND GUSTS TO 35 MPH IN LOWER
ELEVATIONS OF GRAHAM COUNTY. MOISTURE LEVELS WILL REMAIN
SLIGHTLY ELEVATED THROUGH TODAY, WITH MINIMUM RELATIVE HUMIDITY
15-30 PERCENT IN LOWER ELEVATIONS AND 30-40 PERCENT IN THE
MOUNTAINS. PRECIPITATION CHANCES REMAIN IN THE WHITE MOUNTAINS
TODAY AND ALONG THE INTERNATIONAL BORDER. DRY CONDITIONS AREA-
WIDE FRIDAY AND BEYOND WITH MINIMUM RELATIVE HUMIDITY LOWERING
THIS WEEKEND TO 5 TO 15 PERCENT IN THE VALLEYS AND 10 TO 20
PERCENT IN THE MOUNTAINS. FOR WEDNESDAY AND THURSDAY ELEVATED TO
NEAR CRITICAL FIRE WEATHER CONDITIONS WILL BE POSSIBLE IN THE
GILA RIVER VALLEY AS WINDS INCREASE AND RH DROPS BELOW 15
PERCENT.
AZZ150-182215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
859 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........94 TO 104 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............14 TO 24 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............13028 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 15 TO 16 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (208448 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........65 TO 75 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........DOWN 28 TO 32 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTH 10 TO 15 MPH.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........95 TO 105 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............8 TO 16 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
* MIXING HEIGHT............12279 FT AGL.
* TRANSPORT WINDS..........SOUTH 14 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (233301 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 64 TO 74. HIGHS 95 TO 105. SOUTH WIND
AROUND 15 MPH. MINIMUM HUMIDITY 5 TO 9 PCT.
SUNDAY
CLEAR. LOWS 64 TO 74. HIGHS 96 TO 106. LIGHT WINDS.
MINIMUM HUMIDITY 5 TO 9 PCT.
MONDAY
CLEAR. LOWS 65 TO 75. HIGHS 97 TO 107. LIGHT WINDS.
MINIMUM HUMIDITY 7 TO 13 PCT.
TUESDAY
CLEAR. LOWS 68 TO 78. HIGHS 99 TO 109.
WEDNESDAY
MOSTLY CLEAR. LOWS 71 TO 81. HIGHS 101 TO 111.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-182215-
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-
859 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........88 TO 98 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............18 TO 28 PCT.
24 HR TREND...........DOWN 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.
* MIXING HEIGHT............10893 FT AGL.
* TRANSPORT WINDS..........WEST 13 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (152502 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT). SLIGHTCHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MIN TEMPERATURE..........61 TO 71 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............32 TO 42 PCT.
24 HR TREND...........DOWN 47 TO 51 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........90 TO 100 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............9 TO 18 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............9655 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (135170 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 60 TO 70. HIGHS 91 TO 101. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 13 PCT.
SUNDAY
CLEAR. LOWS 59 TO 69. HIGHS 92 TO 102. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 11 PCT.
MONDAY
CLEAR. LOWS 60 TO 70. HIGHS 93 TO 103. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 8 TO 16 PCT.
TUESDAY
CLEAR. LOWS 64 TO 74. HIGHS 95 TO 105.
WEDNESDAY
MOSTLY CLEAR. LOWS 66 TO 76. HIGHS 96 TO 106.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-182215-
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-
859 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* 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.............15 TO 25 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 20 MPH.
* 10000 FT MSL WIND........NORTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............9871 FT AGL.
* TRANSPORT WINDS..........WEST 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (167807 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MIN TEMPERATURE..........61 TO 71 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........DOWN 24 TO 28 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST AROUND 20 MPH DECREASING TO
AROUND 10 MPH AFTER MIDNIGHT.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........91 TO 101 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............8 TO 17 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
* MIXING HEIGHT............10706 FT AGL.
* TRANSPORT WINDS..........WEST 11 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (149884 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 61 TO 71. HIGHS 92 TO 102. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 5 TO 14 PCT.
SUNDAY
CLEAR. LOWS 59 TO 69. HIGHS 93 TO 103. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 4 TO 10 PCT.
MONDAY
CLEAR. LOWS 60 TO 70. HIGHS 94 TO 104. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 7 TO 14 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 63 TO 73. HIGHS 96 TO 106.
WEDNESDAY
MOSTLY CLEAR. LOWS 65 TO 75. HIGHS 97 TO 107.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-182215-
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-
859 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........30 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............22 TO 32 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 15 TO 20 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............9607 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 15 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (182533 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........55 TO 65 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............41 TO 51 PCT.
24 HR TREND...........DOWN 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........82 TO 92 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............11 TO 20 PCT.
24 HR TREND...........DOWN 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
* MIXING HEIGHT............10234 FT AGL.
* TRANSPORT WINDS..........WEST 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (143276 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 54 TO 64. HIGHS 82 TO 92. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 12 PCT.
SUNDAY
CLEAR. LOWS 51 TO 61. HIGHS 83 TO 93. NORTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 5 TO 8 PCT.
MONDAY
CLEAR. LOWS 52 TO 62. HIGHS 85 TO 95. NORTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 12 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 66. HIGHS 87 TO 97.
WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 69. HIGHS 87 TO 97.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-182215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
859 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........78 TO 88 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............22 TO 32 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............11365 FT AGL.
* TRANSPORT WINDS..........WEST 16 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (181840 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........57 TO 67 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............36 TO 46 PCT.
24 HR TREND...........DOWN 27 TO 31 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........80 TO 90 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........DOWN 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............12064 FT AGL.
* TRANSPORT WINDS..........WEST 10 TO 13 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (138736 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 57 TO 67. HIGHS 81 TO 91. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 18 PCT.
SUNDAY
CLEAR. LOWS 56 TO 66. HIGHS 82 TO 92. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 6 TO 13 PCT.
MONDAY
CLEAR. LOWS 57 TO 67. HIGHS 84 TO 94. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 9 TO 17 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 60 TO 70. HIGHS 86 TO 96.
WEDNESDAY
MOSTLY CLEAR. LOWS 62 TO 72. HIGHS 86 TO 96.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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