


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
990 FNUS55 KTWC 011036 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 336 AM MST Mon Sep 1 2025 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION... Minimum relative humidity values generally above 20-30 percent across southeastern Arizona through the week. Near normal temperatures through mid-week, then lower than normal the second half of the week. Winds today out of the east to southeast at 12 to 17 mph with gusts of 20 to 30 mph, especially in areas open to easterly flow such as the Gila River Valley. Southeasterly winds continue Tuesday then become lighter mid-week. Isolated thunderstorms today, with greater chances over the White Mountains and in far southern locations including Santa Cruz through western Pima counties. Daily chances continue this week with day to day variability. AZZ150-012215- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 336 AM MST Mon Sep 1 2025 .TODAY... * Sky/Weather..............Partly cloudy (40-50 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........95 to 105 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............22 to 32 pct. 24 hr Trend...........Up 6 to 10 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East 15 to 20 mph. * Mixing height............10971 ft AGL. * Transport winds..........East 14 to 17 knots. * Ventilation Category.....Excellent (186507 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (70-80 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Min Temperature..........74 to 84 degs. 24 hr Trend...........Little change. * Max Humidity.............51 to 61 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........East 20 to 25 mph. .TUESDAY... * 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..........93 to 103 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............23 to 33 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............10133 ft AGL. * Transport winds..........Southeast 18 knots. * Ventilation Category.....Excellent (182394 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 71 to 81. Highs 91 to 101. Light winds. Minimum Humidity 27 to 37 pct. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 71 to 81. Highs 90 to 100. Light winds. Minimum Humidity 31 to 41 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 67 to 77. Highs 87 to 97. Light winds. Minimum Humidity 33 to 43 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 68 to 78. Highs 88 to 98. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 68 to 78. Highs 89 to 99. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-012215- 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- 336 AM MST Mon Sep 1 2025 .TODAY... * Sky/Weather..............Mostly cloudy (55-65 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........86 to 96 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............28 to 38 pct. 24 hr Trend...........Up 9 to 13 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East 20 to 25 mph. * Mixing height............8766 ft AGL. * Transport winds..........East 19 to 21 knots. * Ventilation Category.....Excellent (184086 knot-ft). .TONIGHT... * 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..........64 to 74 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............63 to 73 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........East 20 to 25 mph. .TUESDAY... * Sky/Weather..............Partly cloudy (45-55 pct) then becoming mostly cloudy (45-55 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........86 to 96 degs. 24 hr Trend...........Little change. * Min Humidity.............25 to 35 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 15 to 20 mph. * Mixing height............8604 ft AGL. * Transport winds..........Southeast 22 to 23 knots. * Ventilation Category.....Excellent (197892 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 63 to 73. Highs 85 to 95. Light winds. Minimum Humidity 30 to 40 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 85 to 95. Light winds. Minimum Humidity 34 to 44 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 81 to 91. Light winds. Minimum Humidity 37 to 47 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 82 to 92. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 83 to 93. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-012215- 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- 336 AM MST Mon Sep 1 2025 .TODAY... * Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Max Temperature..........84 to 94 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............28 to 38 pct. 24 hr Trend...........Up 7 to 11 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East 20 to 25 mph. * Mixing height............6371 ft AGL. * Transport winds..........East 16 to 19 knots. * Ventilation Category.....Excellent (121049 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (70-80 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...........Little change. * Max Humidity.............61 to 71 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East 20 to 25 mph. .TUESDAY... * Sky/Weather..............Mostly cloudy (55-65 pct) then becoming partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........85 to 95 degs. 24 hr Trend...........Little change. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Down 6 to 10 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........Southeast 25 to 30 mph. * Mixing height............7327 ft AGL. * Transport winds..........Southeast 20 to 21 knots. * Ventilation Category.....Excellent (153867 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 62 to 72. Highs 86 to 96. Light winds. Minimum Humidity 21 to 31 pct. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 86 to 96. Light winds. Minimum Humidity 24 to 34 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 82 to 92. Light winds. Minimum Humidity 30 to 40 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 83 to 93. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 84 to 94. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-012215- 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- 336 AM MST Mon Sep 1 2025 .TODAY... * Sky/Weather..............Mostly cloudy (60-70 pct). Chance of showers and thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........50 pct. * Max Temperature..........75 to 85 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............38 to 48 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............9029 ft AGL. * Transport winds..........East 13 to 14 knots. * Ventilation Category.....Excellent (126406 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (70-80 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Min Temperature..........54 to 64 degs. 24 hr Trend...........Little change. * Max Humidity.............68 to 78 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..East around 10 mph. * 10000 ft MSL Wind........Southeast 15 to 20 mph. .TUESDAY... * Sky/Weather..............Mostly cloudy (55-65 pct) then becoming partly cloudy (45-55 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...........Little change. * Min Humidity.............32 to 42 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 15 to 20 mph. * Mixing height............8806 ft AGL. * Transport winds..........Southeast 16 knots. * Ventilation Category.....Excellent (140896 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 54 to 64. Highs 75 to 85. Light winds. Minimum Humidity 25 to 35 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 54 to 64. Highs 76 to 86. Light winds. Minimum Humidity 24 to 34 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 53 to 63. Highs 73 to 83. Light winds. Minimum Humidity 30 to 40 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 52 to 62. Highs 72 to 82. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 52 to 62. Highs 74 to 84. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-012215- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 336 AM MST Mon Sep 1 2025 .TODAY... * Sky/Weather..............Mostly cloudy (65-75 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........74 to 84 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............38 to 48 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East 25 to 30 mph. * Mixing height............8350 ft AGL. * Transport winds..........East 19 to 20 knots. * Ventilation Category.....Excellent (162825 knot-ft). .TONIGHT... * 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 1 deg. * Max Humidity.............62 to 72 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........East 20 to 25 mph. .TUESDAY... * Sky/Weather..............Mostly cloudy (45-55 pct) then becoming partly cloudy (40-50 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........74 to 84 degs. 24 hr Trend...........Little change. * Min Humidity.............28 to 38 pct. 24 hr Trend...........Down 6 to 10 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........Southeast 20 to 25 mph. * Mixing height............8872 ft AGL. * Transport winds..........Southeast 22 to 24 knots. * Ventilation Category.....Excellent (204056 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 57 to 67. Highs 75 to 85. Light winds. Minimum Humidity 30 to 40 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 56 to 66. Highs 75 to 85. Light winds. Minimum Humidity 35 to 45 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 71 to 81. Light winds. Minimum Humidity 41 to 51 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 72 to 82. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 73 to 83. NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson