Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
912
FNUS55 KTWC 022246
FWFTWC
Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
346 PM MST Tue Sep 2 2025
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20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY
TERRAIN DRIVEN WINDS
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.DISCUSSION...Minimum relative humidity values will be driest in
the Gila River Valley this afternoon and Wednesday, then increasing
above 25-35 percent the remainder of the week. Humidity will be
mainly above 20-30 percent elsewhere this week, especially Thursday
through Saturday as a substantial increase in moisture arrives.
Southeasterly winds today strongest through the Gila and
southeastern Cochise at 13 to 18 mph with gusts to 30 mph. 10-15 mph
elsewhere from Tucson to Nogales west. Scattered thunderstorms will
continue this afternoon from Santa Cruz through central and western
Pima. A few may also develop over the White Mountains. Additional
chances again on Wednesday, then increasing chances across
southeastern Arizona to end the week as moisture moves in.
AZZ150-031430-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O`odham Nation-Tucson Metropolitan area-TDC-
346 PM MST Tue Sep 2 2025
.TONIGHT...
* Sky/Weather..............Mostly cloudy (50-60 pct). Slight
chance of showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........71 to 81 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............61 to 71 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..South around 10 mph.
* 10000 ft MSL Wind........Southeast 15 to 20 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (40-50 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........91 to 101 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............28 to 38 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph
in the afternoon.
* 10000 ft MSL Wind........South 10 to 15 mph.
* Mixing height............8871 ft AGL.
* Transport winds..........Southwest 9 knots.
* Ventilation Category.....Very good (79839 knot-ft).
.WEDNESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (65-75 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........50 pct.
* Min Temperature..........69 to 79 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............68 to 78 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..South around 10 mph.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
.THURSDAY...
* Sky/Weather..............Mostly cloudy (55-65 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........50 pct.
* Max Temperature..........85 to 95 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............39 to 49 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........East 10 to 15 mph.
* Mixing height............6430 ft AGL.
* Transport winds..........Southwest 8 to 10 knots.
* Ventilation Category.....Good (64300 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 67 to 77. Highs 81 to 91. Light winds. Minimum Humidity
46 to 56 pct.
.SATURDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 66 to 76. Highs 84 to 94. Light winds. Minimum Humidity
38 to 48 pct.
.SUNDAY...Mostly clear. Lows 67 to 77. Highs 88 to 98. Light
winds. Minimum Humidity 26 to 36 pct.
.MONDAY...Mostly clear. Lows 68 to 78. Highs 92 to 102.
.TUESDAY...Mostly clear. Lows 68 to 78. Highs 95 to 105.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
$$
AZZ151-031430-
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-
346 PM MST Tue Sep 2 2025
.TONIGHT...
* Sky/Weather..............Mostly cloudy (45-55 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........63 to 73 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............65 to 75 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........Southeast 15 to 20 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (45-55 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........85 to 95 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............29 to 39 pct.
24 hr Trend...........Down 98 to 102 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............7113 ft AGL.
* Transport winds..........Southeast 7 to 9 knots.
* Ventilation Category.....Good (64017 knot-ft).
.WEDNESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (65-75 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........63 to 73 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............72 to 82 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southwest around 10 mph.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
.THURSDAY...
* Sky/Weather..............Mostly cloudy (65-75 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........50 pct.
* Max Temperature..........79 to 89 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............43 to 53 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............3752 ft AGL.
* Transport winds..........Northeast 6 knots shifting to the
southwest 9 knots in the afternoon.
* Ventilation Category.....Fair (33768 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 60 to 70. Highs 74 to 84. Light winds. Minimum Humidity
53 to 63 pct.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 58 to 68. Highs 78 to 88. Light winds. Minimum Humidity
45 to 55 pct.
.SUNDAY...Mostly clear. Lows 59 to 69. Highs 83 to 93. Light
winds. Minimum Humidity 30 to 40 pct.
.MONDAY...Mostly clear. Lows 60 to 70. Highs 86 to 96.
.TUESDAY...Mostly clear. Lows 61 to 71. Highs 89 to 99.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
$$
AZZ152-031430-
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-
346 PM MST Tue Sep 2 2025
.TONIGHT...
* 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..........62 to 72 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............51 to 61 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southeast 10 to 15 mph.
* 10000 ft MSL Wind........Southeast 25 to 30 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (45-55 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........10 pct.
* Chance of Thunder........10 pct.
* Max Temperature..........86 to 96 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............18 to 28 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............9967 ft AGL.
* Transport winds..........Southeast 9 to 10 knots.
* Ventilation Category.....Very good (99670 knot-ft).
.WEDNESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........10 pct.
* Chance of Thunder........10 pct.
* Min Temperature..........62 to 72 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............58 to 68 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southwest around 10 mph.
* 10000 ft MSL Wind........South 10 to 15 mph.
.THURSDAY...
* Sky/Weather..............Mostly cloudy (65-75 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........82 to 92 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............28 to 38 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............8103 ft AGL.
* Transport winds..........North 6 knots shifting to the south in
the afternoon.
* Ventilation Category.....Very good (89133 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 60 to 70. Highs 74 to 84. Light winds. Minimum Humidity
48 to 58 pct.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 57 to 67. Highs 78 to 88. Light winds. Minimum Humidity
39 to 49 pct.
.SUNDAY...Mostly clear. Lows 58 to 68. Highs 83 to 93. Light
winds. Minimum Humidity 26 to 36 pct.
.MONDAY...Mostly clear. Lows 60 to 70. Highs 86 to 96.
.TUESDAY...Mostly clear. Lows 60 to 70. Highs 88 to 98.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
$$
AZZ153-031430-
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-
346 PM MST Tue Sep 2 2025
.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 48 to 52 degs.
* Max Humidity.............51 to 61 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southeast around 15 mph shifting to the
east after midnight.
* 10000 ft MSL Wind........Southeast 20 to 25 mph.
.WEDNESDAY...
* Sky/Weather..............Partly cloudy (35-45 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........76 to 86 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............20 to 30 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..East around 10 mph shifting to the south
in the afternoon.
* 10000 ft MSL Wind........South around 20 mph decreasing to around
10 mph in the afternoon.
* Mixing height............11259 ft AGL.
* Transport winds..........Southeast 9 knots.
* Ventilation Category.....Excellent (101331 knot-ft).
.WEDNESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (55-65 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 48 to 52 degs.
* Max Humidity.............51 to 61 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..West around 10 mph shifting to the north
after midnight.
* 10000 ft MSL Wind........South 5 to 10 mph.
.THURSDAY...
* Sky/Weather..............Mostly cloudy (65-75 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........30 pct.
* Max Temperature..........74 to 84 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............24 to 34 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 5 to 10 mph.
* Mixing height............9397 ft AGL.
* Transport winds..........Northeast 7 knots shifting to the south
11 knots in the afternoon.
* Ventilation Category.....Excellent (103367 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 52 to 62. Highs 67 to 77. Light winds. Minimum Humidity
45 to 55 pct.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 50 to 60. Highs 69 to 79. Light winds. Minimum Humidity
42 to 52 pct.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 51 to 61. Highs 74 to 84. Light winds.
Minimum Humidity 26 to 36 pct.
.MONDAY...Mostly clear. Lows 51 to 61. Highs 77 to 87.
.TUESDAY...Mostly clear. Lows 52 to 62. Highs 78 to 88.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
$$
AZZ154-031430-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
346 PM MST Tue Sep 2 2025
.TONIGHT...
* Sky/Weather..............Mostly cloudy (45-55 pct). Slight
chance of showers and thunderstorms.
* Chance of Precip.........10 pct.
* Chance of Thunder........10 pct.
* Min Temperature..........57 to 67 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............55 to 65 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southeast 10 to 15 mph.
* 10000 ft MSL Wind........Southeast 20 to 25 mph.
.WEDNESDAY...
* 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..........75 to 85 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............32 to 42 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............10129 ft AGL.
* Transport winds..........Southeast 10 knots.
* Ventilation Category.....Excellent (101290 knot-ft).
.WEDNESDAY NIGHT...
* Sky/Weather..............Mostly cloudy (65-75 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........57 to 67 degs.
24 hr Trend...........Down 48 to 52 degs.
* Max Humidity.............62 to 72 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Southwest around 10 mph.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
.THURSDAY...
* Sky/Weather..............Mostly cloudy (70-80 pct). Chance of
showers and thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........50 pct.
* Max Temperature..........71 to 81 degs.
24 hr Trend...........Down 48 to 52 degs.
* Min Humidity.............44 to 54 pct.
24 hr Trend...........Down 98 to 102 pct.
* Wind (20 ft/10-min avg)..Light winds becoming southwest around 10
mph in the afternoon.
* 10000 ft MSL Wind........Southeast 10 to 15 mph.
* Mixing height............8929 ft AGL.
* Transport winds..........Northeast 7 knots shifting to the south
10 knots in the afternoon.
* Ventilation Category.....Very good (89290 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.FRIDAY...Thunderstorms likely and chance of showers. Lows 54 to
64. Highs 63 to 73. Light winds. Minimum Humidity 63 to 73 pct.
.SATURDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows 52 to 62. Highs 68 to 78. Light winds. Minimum Humidity
52 to 62 pct.
.SUNDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows 53 to 63. Highs 73 to 83. Light winds.
Minimum Humidity 36 to 46 pct.
.MONDAY...Mostly clear. Lows 55 to 65. Highs 76 to 86.
.TUESDAY...Mostly clear. Lows 56 to 66. 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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