Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
163
FNUS55 KTWC 190820
FWFTWC
Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
118 AM MST Sat Sep 19 2026
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20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY
TERRAIN DRIVEN WINDS
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.DISCUSSION...Dry conditions across southeast Arizona into Monday.
Moisture then spreads back across portions of southeast Arizona next
week for a chance of showers and thunderstorms. High temperatures
will be within a couple of degrees of normal through next week. Min
RH values will be in the 13-20 percent range west of Tucson through
the weekend and 20-27 percent in valley locations east of Tucson (25-
40 percent in the mountains). RH values then increase 10-20+ percent
east of Tucson next week as deeper moisture moves back into the
area. 20-foot winds will be less than 15 mph into at least the
middle of next week. Gusty and erratic winds will accompany any
thunderstorms.
AZZ150-192215-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O`odham Nation-Tucson Metropolitan area-TDC-
118 AM MST Sat Sep 19 2026
.TODAY...
* Sky/Weather..............Mostly sunny (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........92 to 102 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............15 to 25 pct.
24 hr Trend...........Down 1 to 4 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the
southwest in the afternoon.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............10235 ft AGL.
* Transport winds..........South 8 to 11 knots.
* Ventilation Category.....Excellent (112585 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly clear (10-20 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........66 to 76 degs.
24 hr Trend...........Little change.
* Max Humidity.............42 to 52 pct.
24 hr Trend...........Up 9 to 13 pct.
* Wind (20 ft/10-min avg)..Southwest around 10 mph shifting to the
south after midnight.
* 10000 ft MSL Wind........Southwest 10 to 15 mph.
.SUNDAY...
* 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...........Down 1 to 4 degs.
* Min Humidity.............18 to 28 pct.
24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..South around 10 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............10612 ft AGL.
* Transport winds..........South 11 knots.
* Ventilation Category.....Excellent (116732 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.MONDAY...Partly cloudy. Lows 67 to 77. Highs 91 to 101. Light
winds. Minimum Humidity 18 to 28 pct.
.TUESDAY...Mostly clear. Lows 66 to 76. Highs 91 to 101. Light
winds. Minimum Humidity 17 to 27 pct.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 67 to 77. Highs 92 to 102. Southeast wind
around 15 mph. Minimum Humidity 23 to 33 pct.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 69 to 79. Highs 90 to 100.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 69 to 79. Highs 91 to 101.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
$$
AZZ151-192215-
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-
118 AM MST Sat Sep 19 2026
.TODAY...
* Sky/Weather..............Mostly sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........86 to 96 degs.
24 hr Trend...........Little change.
* Min Humidity.............22 to 32 pct.
24 hr Trend...........Down 5 to 9 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 15
mph in the afternoon.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............8567 ft AGL.
* Transport winds..........South 10 knots shifting to the southwest
12 knots in the afternoon.
* Ventilation Category.....Excellent (102804 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly clear (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........59 to 69 degs.
24 hr Trend...........Little change.
* Max Humidity.............48 to 58 pct.
24 hr Trend...........Down 4 to 8 pct.
* Wind (20 ft/10-min avg)..West around 10 mph shifting to the south
after midnight.
* 10000 ft MSL Wind........Southwest 10 to 15 mph.
.SUNDAY...
* Sky/Weather..............Mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........84 to 94 degs.
24 hr Trend...........Little change.
* Min Humidity.............21 to 31 pct.
24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..South around 10 mph shifting to the
southwest in the afternoon.
* 10000 ft MSL Wind........Southwest 10 to 15 mph.
* Mixing height............8882 ft AGL.
* Transport winds..........Southwest 8 to 9 knots.
* Ventilation Category.....Very good (79938 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.MONDAY...Partly cloudy. Lows 60 to 70. Highs 85 to 95. Light
winds. Minimum Humidity 22 to 32 pct.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 61 to 71. Highs 84 to 94. Southeast wind
around 15 mph. Minimum Humidity 26 to 36 pct.
.WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 60 to 70. Highs 82 to 92. East wind around 20 mph. Minimum
Humidity 36 to 46 pct.
.THURSDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 60 to 70. Highs 80 to 90.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 60 to 70. Highs 81 to 91.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
$$
AZZ152-192215-
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-
118 AM MST Sat Sep 19 2026
.TODAY...
* Sky/Weather..............Mostly sunny (10-20 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........86 to 96 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............22 to 32 pct.
24 hr Trend...........Down 5 to 9 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............8502 ft AGL.
* Transport winds..........Southeast 8 knots shifting to the
southwest 11 knots in the afternoon.
* Ventilation Category.....Very good (93522 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly clear (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........59 to 69 degs.
24 hr Trend...........Down 1 to 4 degs.
* Max Humidity.............50 to 60 pct.
24 hr Trend...........Down 12 to 16 pct.
* Wind (20 ft/10-min avg)..West around 10 mph in the evening
becoming light.
* 10000 ft MSL Wind........Southwest 10 to 15 mph.
.SUNDAY...
* Sky/Weather..............Mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........84 to 94 degs.
24 hr Trend...........Down 1 to 4 degs.
* Min Humidity.............20 to 30 pct.
24 hr Trend...........Down 3 to 6 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............8399 ft AGL.
* Transport winds..........Southwest 6 to 9 knots.
* Ventilation Category.....Very good (75591 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.MONDAY...Partly cloudy. Lows 59 to 69. Highs 84 to 94. Light
winds. Minimum Humidity 21 to 31 pct.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 61 to 71. Highs 82 to 92. Southeast wind around 20 mph.
Minimum Humidity 29 to 39 pct.
.WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 59 to 69. Highs 78 to 88. East wind around 25 mph. Minimum
Humidity 42 to 52 pct.
.THURSDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 58 to 68. Highs 77 to 87.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 59 to 69. Highs 78 to 88.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
$$
AZZ153-192215-
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-
118 AM MST Sat Sep 19 2026
.TODAY...
* Sky/Weather..............Mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........74 to 84 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............29 to 39 pct.
24 hr Trend...........Down 7 to 11 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 15
mph in the afternoon.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............8294 ft AGL.
* Transport winds..........Southeast 11 knots shifting to the
southwest 13 knots in the afternoon.
* Ventilation Category.....Excellent (107822 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly clear (10-20 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........51 to 61 degs.
24 hr Trend...........Little change.
* Max Humidity.............50 to 60 pct.
24 hr Trend...........Down 18 to 22 pct.
* Wind (20 ft/10-min avg)..Northwest around 10 mph.
* 10000 ft MSL Wind........West 10 to 15 mph.
.SUNDAY...
* Sky/Weather..............Mostly sunny (10-20 pct) then becoming
partly cloudy (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........73 to 83 degs.
24 hr Trend...........Little change.
* Min Humidity.............20 to 30 pct.
24 hr Trend...........Down 3 to 7 pct.
* Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the
southwest in the afternoon.
* 10000 ft MSL Wind........West 10 to 15 mph.
* Mixing height............8852 ft AGL.
* Transport winds..........West 10 to 11 knots.
* Ventilation Category.....Very good (97372 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.MONDAY...Partly cloudy. Lows 51 to 61. Highs 73 to 83. Light
winds. Minimum Humidity 22 to 32 pct.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 53 to 63. Highs 70 to 80. East wind around 20 mph. Minimum
Humidity 38 to 48 pct.
.WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 52 to 62. Highs 67 to 77. East wind around 20 mph. Minimum
Humidity 49 to 59 pct.
.THURSDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 51 to 61. Highs 66 to 76.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 51 to 61. Highs 67 to 77.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
$$
AZZ154-192215-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
118 AM MST Sat Sep 19 2026
.TODAY...
* Sky/Weather..............Mostly sunny (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........75 to 85 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............29 to 39 pct.
24 hr Trend...........Down 6 to 10 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............9747 ft AGL.
* Transport winds..........Southwest 10 to 12 knots.
* Ventilation Category.....Excellent (107217 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly clear (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........55 to 65 degs.
24 hr Trend...........Down 1 deg.
* Max Humidity.............45 to 55 pct.
24 hr Trend...........Down 14 to 18 pct.
* Wind (20 ft/10-min avg)..West around 10 mph.
* 10000 ft MSL Wind........Southwest 10 to 15 mph.
.SUNDAY...
* Sky/Weather..............Mostly sunny (5-15 pct) then becoming
partly cloudy (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........74 to 84 degs.
24 hr Trend...........Down 1 deg.
* Min Humidity.............27 to 37 pct.
24 hr Trend...........Down 1 to 4 pct.
* Wind (20 ft/10-min avg)..Southwest around 10 mph.
* 10000 ft MSL Wind........Southwest 10 to 15 mph.
* Mixing height............10643 ft AGL.
* Transport winds..........Southwest 7 to 9 knots.
* Ventilation Category.....Very good (85144 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.MONDAY...Partly cloudy. Lows 55 to 65. Highs 74 to 84. Light
winds. Minimum Humidity 28 to 38 pct.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 56 to 66. Highs 72 to 82. Southeast wind around 15 mph.
Minimum Humidity 36 to 46 pct.
.WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 54 to 64. Highs 69 to 79. East wind around 20 mph. Minimum
Humidity 54 to 64 pct.
.THURSDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 53 to 63. Highs 67 to 77.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 53 to 63. Highs 69 to 79.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
$$
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