Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
436
FNUS55 KTWC 180802
FWFTWC
Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
102 AM 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.
AZZ150-182315-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O`odham Nation-Tucson Metropolitan area-TDC-
102 AM MST Mon Aug 18 2025
.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..........95 to 105 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............15 to 25 pct.
24 hr Trend...........Down 4 to 8 pct.
* Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph
in the afternoon.
* 10000 ft MSL Wind........East 5 to 10 mph.
* Mixing height............9421 ft AGL.
* Transport winds..........South 9 knots shifting to the north in
the afternoon.
* Ventilation Category.....Very good (84789 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..........74 to 84 degs.
24 hr Trend...........Up 1 to 4 degs.
* Max Humidity.............42 to 52 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........East 10 to 15 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (30-40 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 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 becoming northwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........East 10 to 15 mph.
* Mixing height............9344 ft AGL.
* Transport winds..........Southeast 8 knots shifting to the east 9
knots in the afternoon.
* Ventilation Category.....Very good (84096 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 76 to 86. Highs 100 to 110. Light winds. Minimum Humidity
17 to 27 pct.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 76 to 86. Highs 101 to 111. Light winds.
Minimum Humidity 15 to 23 pct.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 76 to 86. Highs 100 to 110. Light winds. Minimum Humidity
16 to 26 pct.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 74 to 84. Highs 98 to 108.
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 74 to 84. Highs 97 to 107.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
$$
AZZ151-182315-
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-
102 AM MST Mon Aug 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (45-55 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........88 to 98 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............19 to 29 pct.
24 hr Trend...........Down 6 to 10 pct.
* Wind (20 ft/10-min avg)..Light winds becoming northwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Northeast 5 to 10 mph.
* Mixing height............9500 ft AGL.
* Transport winds..........South 7 knots shifting to the northeast
10 knots in the afternoon.
* Ventilation Category.....Very good (95000 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (45-55 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........65 to 75 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............60 to 70 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 5 to 10 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (30-40 pct) then becoming
mostly cloudy (50-60 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...........Up 1 deg.
* Min Humidity.............21 to 31 pct.
24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..East 10 to 15 mph.
* 10000 ft MSL Wind........East 5 to 10 mph.
* Mixing height............7086 ft AGL.
* Transport winds..........East 7 to 10 knots.
* Ventilation Category.....Very good (70860 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 67 to 77. Highs 92 to 102. Light winds. Minimum Humidity
22 to 32 pct.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 67 to 77. Highs 93 to 103. Light winds.
Minimum Humidity 18 to 28 pct.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 67 to 77. Highs 93 to 103. Light winds. Minimum Humidity
19 to 29 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 92 to 102.
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 66 to 76. Highs 91 to 101.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
$$
AZZ152-182315-
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-
102 AM MST Mon Aug 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (50-60 pct) then becoming
partly cloudy (40-50 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........89 to 99 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............18 to 28 pct.
24 hr Trend...........Down 1 pct.
* Wind (20 ft/10-min avg)..Light winds becoming south around 15 mph
in the afternoon.
* 10000 ft MSL Wind........Northeast 5 to 10 mph.
* Mixing height............8866 ft AGL.
* Transport winds..........Southwest 8 knots shifting to the
southeast 11 knots in the afternoon.
* Ventilation Category.....Very good (97526 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (55-65 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........65 to 75 degs.
24 hr Trend...........Little change.
* Max Humidity.............62 to 72 pct.
24 hr Trend...........Up 10 to 14 pct.
* Wind (20 ft/10-min avg)..Southeast 10 to 15 mph.
* 10000 ft MSL Wind........Northeast 5 to 10 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (35-45 pct) then becoming
mostly cloudy (70-80 pct). Showers
likely and chance of thunderstorms.
* Chance of Precip.........60 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)..Southeast around 10 mph increasing to
around 20 mph in the afternoon.
* 10000 ft MSL Wind........East around 10 mph shifting to the
southeast in the afternoon.
* Mixing height............7525 ft AGL.
* Transport winds..........Southeast 7 to 13 knots.
* Ventilation Category.....Very good (97825 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 91 to 101. Light winds.
Minimum Humidity 21 to 31 pct.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 91 to 101. Light winds.
Minimum Humidity 18 to 28 pct.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 92 to 102. Light winds.
Minimum Humidity 17 to 27 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 91 to 101.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 66 to 76. Highs 90 to 100.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
$$
AZZ153-182315-
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-
102 AM MST Mon Aug 18 2025
.TODAY...
* Sky/Weather..............Partly cloudy (35-45 pct) then becoming
mostly cloudy (45-55 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.............21 to 31 pct.
24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..Light winds becoming south around 20 mph
in the afternoon.
* 10000 ft MSL Wind........Northeast 5 to 10 mph.
* Mixing height............10343 ft AGL.
* Transport winds..........Northeast 7 knots shifting to the
southeast 13 knots in the afternoon.
* Ventilation Category.....Excellent (134459 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (50-60 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)..Southeast 10 to 15 mph.
* 10000 ft MSL Wind........Northwest 5 to 10 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (20-30 pct) then becoming
mostly cloudy (75-85 pct). Showers and
thunderstorms likely.
* Chance of Precip.........70 pct.
* Chance of Thunder........70 pct.
* Max Temperature..........80 to 90 degs.
24 hr Trend...........Little change.
* Min Humidity.............29 to 39 pct.
24 hr Trend...........Up 5 to 9 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southeast around 20
mph in the afternoon.
* 10000 ft MSL Wind........Northeast around 10 mph shifting to the
southeast in the afternoon.
* Mixing height............8689 ft AGL.
* Transport winds..........East 8 to 15 knots.
* Ventilation Category.....Excellent (130335 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows 58 to 68. Highs 80 to 90. Light winds.
Minimum Humidity 27 to 37 pct.
.THURSDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 59 to 69. Highs 81 to 91. Light winds. Minimum Humidity
23 to 33 pct.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 58 to 68. Highs 82 to 92. Light winds. Minimum Humidity
23 to 33 pct.
.SATURDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 59 to 69. Highs 80 to 90.
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 58 to 68. Highs 80 to 90.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
$$
AZZ154-182315-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
102 AM MST Mon Aug 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (50-60 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........78 to 88 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............26 to 36 pct.
24 hr Trend...........Down 6 to 10 pct.
* Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the
east in the afternoon.
* 10000 ft MSL Wind........Northeast 5 to 10 mph.
* Mixing height............9164 ft AGL.
* Transport winds..........North 7 knots shifting to the east 8
knots in the afternoon.
* Ventilation Category.....Very good (73312 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (55-65 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........60 to 70 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 5 to 10 mph.
.TUESDAY...
* Sky/Weather..............Partly cloudy (30-40 pct) then becoming
mostly cloudy (65-75 pct). Showers
likely and chance of thunderstorms.
* Chance of Precip.........60 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)..East around 10 mph.
* 10000 ft MSL Wind........East around 10 mph shifting to the
southeast in the afternoon.
* Mixing height............7796 ft AGL.
* Transport winds..........East 8 to 9 knots.
* Ventilation Category.....Good (66266 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 61 to 71. Highs 80 to 90. East wind around 15 mph. Minimum
Humidity 29 to 39 pct.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 61 to 71. Highs 81 to 91. Light winds.
Minimum Humidity 22 to 32 pct.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 62 to 72. Highs 82 to 92. Light winds. Minimum Humidity
22 to 32 pct.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 61 to 71. Highs 80 to 90.
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 60 to 70. Highs 80 to 90.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
$$
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