Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
498
FNUS55 KTWC 182137
FWFTWC
Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
237 PM MST Mon Aug 18 2025
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20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY
TERRAIN DRIVEN WINDS
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.DISCUSSION...
Expect daily chances for thunderstorms and wetting
rain showers into next week. Min RHs will generally be 15-20
percent in the lower elevations and 20-30 in the mountains. Winds
will generally be less than 15 mph with typical afternoon gusts
up to 20 mph into next week. Temperatures will be trending above
normal the second half of this week, with extreme heat expected in
the lower elevations of Southeast Arizona.
AZZ150-191415-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O`odham Nation-Tucson Metropolitan area-TDC-
237 PM MST Mon Aug 18 2025
.TONIGHT...
* Sky/Weather..............Partly cloudy (40-50 pct) then becoming
mostly cloudy (50-60 pct).
* Chance of Precip.........10 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........73 to 83 degs.
24 hr Trend...........Up 1 to 4 degs.
* Max Humidity.............41 to 51 pct.
24 hr Trend...........Down 1 to 4 pct.
* Wind (20 ft/10-min avg)..West around 10 mph shifting to the south
after midnight.
* 10000 ft MSL Wind........Northeast 10 to 15 mph.
.TUESDAY...
* 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..........97 to 107 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............18 to 28 pct.
24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..Light winds.
* 10000 ft MSL Wind........East 10 to 15 mph.
* Mixing height............10314 ft AGL.
* Transport winds..........East 7 knots.
* Ventilation Category.....Very good (72198 knot-ft).
.TUESDAY NIGHT...
* Sky/Weather..............Partly cloudy (40-50 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........10 pct.
* Chance of Thunder........10 pct.
* Min Temperature..........75 to 85 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............36 to 46 pct.
24 hr Trend...........Up 1 pct.
* Wind (20 ft/10-min avg)..West around 10 mph shifting to the south
after midnight.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (30-40 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........100 to 110 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............19 to 29 pct.
24 hr Trend...........Up 1 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the
northeast in the afternoon.
* 10000 ft MSL Wind........East 5 to 10 mph.
* Mixing height............11601 ft AGL.
* Transport winds..........East 7 knots.
* Ventilation Category.....Very good (81207 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 76 to 86. Highs 101 to 111. Light winds.
Minimum Humidity 16 to 24 pct.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 76 to 86. Highs 100 to 110. Light winds. Minimum Humidity
16 to 25 pct.
.SATURDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 74 to 84. Highs 98 to 108. Light winds. Minimum Humidity
19 to 29 pct.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 74 to 84. Highs 98 to 108.
.MONDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 73 to 83. Highs 93 to 103.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
$$
AZZ151-191415-
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-
237 PM MST Mon Aug 18 2025
.TONIGHT...
* Sky/Weather..............Mostly cloudy (50-60 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........65 to 75 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............59 to 69 pct.
24 hr Trend...........Down 2 to 5 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.
.TUESDAY...
* Sky/Weather..............Partly cloudy (35-45 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........40 pct.
* Max Temperature..........90 to 100 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............21 to 31 pct.
24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..Light winds becoming east around 10 mph
in the afternoon.
* 10000 ft MSL Wind........East 5 to 10 mph.
* Mixing height............9659 ft AGL.
* Transport winds..........Southeast 7 knots.
* Ventilation Category.....Good (67613 knot-ft).
.TUESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (55-65 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........67 to 77 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............58 to 68 pct.
24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (30-40 pct) then becoming
mostly cloudy (50-60 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........40 pct.
* Max Temperature..........92 to 102 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............25 to 35 pct.
24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..East around 10 mph.
* 10000 ft MSL Wind........East 10 to 15 mph.
* Mixing height............9846 ft AGL.
* Transport winds..........East 10 to 11 knots.
* Ventilation Category.....Excellent (108306 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 67 to 77. Highs 93 to 103. Light winds.
Minimum Humidity 19 to 29 pct.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 67 to 77. Highs 93 to 103. Light winds.
Minimum Humidity 20 to 30 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 92 to 102. Light winds.
Minimum Humidity 18 to 28 pct.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 92 to 102.
.MONDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 66 to 76. Highs 88 to 98.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
$$
AZZ152-191415-
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-
237 PM MST Mon Aug 18 2025
.TONIGHT...
* Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........64 to 74 degs.
24 hr Trend...........Little change.
* Max Humidity.............61 to 71 pct.
24 hr Trend...........Up 10 to 14 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........East 10 to 15 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (40-50 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........50 pct.
* Max Temperature..........90 to 100 degs.
24 hr Trend...........Little change.
* Min Humidity.............23 to 33 pct.
24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southeast around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............6845 ft AGL.
* Transport winds..........Southeast 7 to 8 knots.
* Ventilation Category.....Good (54760 knot-ft).
.TUESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (55-65 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........66 to 76 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............60 to 70 pct.
24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..East around 10 mph.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (25-35 pct) then becoming
mostly cloudy (50-60 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........30 pct.
* Max Temperature..........91 to 101 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)..East around 10 mph.
* 10000 ft MSL Wind........East 10 to 15 mph.
* Mixing height............9423 ft AGL.
* Transport winds..........East 12 to 13 knots.
* Ventilation Category.....Excellent (122499 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 67 to 77. Highs 92 to 102. Light winds.
Minimum Humidity 20 to 30 pct.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 92 to 102. Light winds.
Minimum Humidity 19 to 29 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 91 to 101. Light winds.
Minimum Humidity 15 to 25 pct.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 91 to 101.
.MONDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 66 to 76. 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)
$$
AZZ153-191415-
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-
237 PM MST Mon Aug 18 2025
.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..........57 to 67 degs.
24 hr Trend...........Little change.
* Max Humidity.............61 to 71 pct.
24 hr Trend...........Up 13 to 17 pct.
* Wind (20 ft/10-min avg)..East around 10 mph.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (25-35 pct) then becoming
mostly cloudy (60-70 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........50 pct.
* Max Temperature..........80 to 90 degs.
24 hr Trend...........Little change.
* Min Humidity.............31 to 41 pct.
24 hr Trend...........Up 5 to 9 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southeast around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............8085 ft AGL.
* Transport winds..........Southeast 8 to 9 knots.
* Ventilation Category.....Very good (72765 knot-ft).
.TUESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (70-80 pct) then becoming
partly cloudy (40-50 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........40 pct.
* Min Temperature..........58 to 68 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............65 to 75 pct.
24 hr Trend...........Up 2 to 5 pct.
* Wind (20 ft/10-min avg)..Northeast around 10 mph.
* 10000 ft MSL Wind........South 5 to 10 mph.
.WEDNESDAY...
* Sky/Weather..............Mostly sunny (20-30 pct) then becoming
mostly cloudy (65-75 pct). Showers and
thunderstorms likely.
* Chance of Precip.........60 pct.
* Chance of Thunder........60 pct.
* Max Temperature..........81 to 91 degs.
24 hr Trend...........Little change.
* Min Humidity.............32 to 42 pct.
24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..East around 10 mph shifting to the
southeast in the afternoon.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
* Mixing height............10053 ft AGL.
* Transport winds..........East 9 to 10 knots.
* Ventilation Category.....Excellent (100530 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 59 to 69. Highs 82 to 92. Light winds. Minimum Humidity
28 to 38 pct.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 58 to 68. Highs 82 to 92. Light winds. Minimum Humidity
26 to 36 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 58 to 68. Highs 80 to 90. Light winds.
Minimum Humidity 24 to 34 pct.
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 58 to 68. Highs 80 to 90.
.MONDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 57 to 67. Highs 79 to 89.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
$$
AZZ154-191415-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
237 PM MST Mon Aug 18 2025
.TONIGHT...
* Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........59 to 69 degs.
24 hr Trend...........Little change.
* Max Humidity.............60 to 70 pct.
24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..South around 10 mph.
* 10000 ft MSL Wind........Northeast 10 to 15 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (40-50 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........50 pct.
* Max Temperature..........79 to 89 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............34 to 44 pct.
24 hr Trend...........Up 6 to 10 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southeast around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............8037 ft AGL.
* Transport winds..........Southeast 8 knots.
* Ventilation Category.....Good (64296 knot-ft).
.TUESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........61 to 71 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............60 to 70 pct.
24 hr Trend...........Up 3 to 7 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (30-40 pct) then becoming
mostly cloudy (55-65 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........40 pct.
* Max Temperature..........80 to 90 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............33 to 43 pct.
24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..East around 10 mph.
* 10000 ft MSL Wind........East 10 to 15 mph.
* Mixing height............9749 ft AGL.
* Transport winds..........East 12 knots.
* Ventilation Category.....Excellent (116988 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 62 to 72. Highs 81 to 91. Light winds.
Minimum Humidity 25 to 35 pct.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 62 to 72. Highs 82 to 92. Light winds.
Minimum Humidity 24 to 34 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 61 to 71. Highs 80 to 90. Light winds.
Minimum Humidity 20 to 30 pct.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 61 to 71. Highs 80 to 90.
.MONDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 61 to 71. Highs 78 to 88.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
$$
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