961
FNUS55 KTWC 181147
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
447 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-
447 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 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.............15 TO 25 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............12243 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (171402 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........66 TO 76 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............25 TO 35 PCT.
24 HR TREND...........DOWN 27 TO 31 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 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..........94 TO 104 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
* MIXING HEIGHT............12319 FT AGL.
* TRANSPORT WINDS..........SOUTH 13 TO 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (209423 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 63 TO 73. HIGHS 95 TO 105. LIGHT WINDS.
MINIMUM HUMIDITY 4 TO 9 PCT.
SUNDAY
CLEAR. LOWS 64 TO 74. HIGHS 96 TO 106. LIGHT WINDS.
MINIMUM HUMIDITY 4 TO 12 PCT.
MONDAY
CLEAR. LOWS 67 TO 77. HIGHS 97 TO 107. LIGHT WINDS.
MINIMUM HUMIDITY 7 TO 13 PCT.
TUESDAY
CLEAR. LOWS 71 TO 81. HIGHS 100 TO 110.
WEDNESDAY
MOSTLY CLEAR. LOWS 74 TO 84. HIGHS 102 TO 112.
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-
447 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
MOSTLY SUNNY (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 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.
* MIXING HEIGHT............10185 FT AGL.
* TRANSPORT WINDS..........WEST 13 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (132405 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........61 TO 71 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............38 TO 48 PCT.
24 HR TREND...........DOWN 45 TO 49 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 (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........89 TO 99 DEGS.
24 HR TREND...........UP 3 TO 7 DEGS.
* MIN HUMIDITY.............10 TO 20 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............9436 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (132104 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 59 TO 69. HIGHS 90 TO 100. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 13 PCT.
SUNDAY
CLEAR. LOWS 59 TO 69. HIGHS 91 TO 101. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 11 PCT.
MONDAY
CLEAR. LOWS 61 TO 71. HIGHS 93 TO 103. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 8 TO 15 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 65 TO 75. HIGHS 96 TO 106.
WEDNESDAY
MOSTLY CLEAR. LOWS 67 TO 77. HIGHS 97 TO 107.
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-
447 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........89 TO 99 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............16 TO 26 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............9710 FT AGL.
* TRANSPORT WINDS..........WEST 17 TO 18 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (174780 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........62 TO 72 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............41 TO 51 PCT.
24 HR TREND...........DOWN 22 TO 26 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (10-20 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.............9 TO 18 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
* MIXING HEIGHT............11166 FT AGL.
* TRANSPORT WINDS..........WEST 11 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (156324 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 91 TO 101. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 5 TO 14 PCT.
SUNDAY
CLEAR. LOWS 59 TO 69. HIGHS 92 TO 102. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 5 TO 10 PCT.
MONDAY
CLEAR. LOWS 61 TO 71. HIGHS 95 TO 105. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 5 TO 13 PCT.
TUESDAY
CLEAR. LOWS 64 TO 74. HIGHS 97 TO 107.
WEDNESDAY
MOSTLY CLEAR. LOWS 66 TO 76. HIGHS 98 TO 108.
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-
447 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............21 TO 31 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 15 TO 20 MPH.
* 10000 FT MSL WIND........NORTHWEST AROUND 20 MPH DECREASING TO
AROUND 10 MPH IN THE AFTERNOON.
* MIXING HEIGHT............9484 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 14 TO 18 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (170712 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..........55 TO 65 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............44 TO 54 PCT.
24 HR TREND...........DOWN 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
JUNETEENTH
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........82 TO 92 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............12 TO 22 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............9727 FT AGL.
* TRANSPORT WINDS..........WEST 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (136178 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 10 PCT.
MONDAY
CLEAR. LOWS 52 TO 62. HIGHS 86 TO 96. NORTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 5 TO 9 PCT.
TUESDAY
CLEAR. LOWS 56 TO 66. HIGHS 88 TO 98.
WEDNESDAY
MOSTLY CLEAR. LOWS 59 TO 69. HIGHS 88 TO 98.
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-
447 AM MST THU JUN 18 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT) THEN BECOMING
MOSTLY SUNNY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........78 TO 88 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............11247 FT AGL.
* TRANSPORT WINDS..........WEST 15 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (168705 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.............40 TO 50 PCT.
24 HR TREND...........DOWN 24 TO 28 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...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............14 TO 24 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............11899 FT AGL.
* TRANSPORT WINDS..........WEST 11 TO 13 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (142788 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SATURDAY
CLEAR. LOWS 56 TO 66. HIGHS 81 TO 91. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 18 PCT.
SUNDAY
CLEAR. LOWS 56 TO 66. HIGHS 81 TO 91. 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 8 TO 17 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 61 TO 71. HIGHS 87 TO 97.
WEDNESDAY
MOSTLY CLEAR. LOWS 62 TO 72. HIGHS 87 TO 97.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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