


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
958 FNUS55 KTWC 012129 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 229 PM 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. An influx of tropical moisture will lead to widespread rain chances Thursday into the weekend. AZZ150-021415- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 229 PM MST Mon Sep 1 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (60-70 pct). Chance of showers and thunderstorms in the evening. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Min Temperature..........74 to 84 degs. 24 hr Trend...........Down 48 to 52 degs. * Max Humidity.............49 to 59 pct. 24 hr Trend...........Up 2 to 5 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 (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........94 to 104 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............22 to 32 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 15 to 20 mph. * Mixing height............11654 ft AGL. * Transport winds..........Southeast 15 knots. * Ventilation Category.....Excellent (174810 knot-ft). .TUESDAY NIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct) then becoming partly cloudy (35-45 pct). Chance of showers and thunderstorms in the evening. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Min Temperature..........71 to 81 degs. 24 hr Trend...........Down 48 to 52 degs. * Max Humidity.............58 to 68 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........East 15 to 20 mph. .WEDNESDAY... * Sky/Weather..............Partly cloudy (30-40 pct) then becoming mostly cloudy (45-55 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........91 to 101 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............28 to 38 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southeast 5 to 10 mph. * Mixing height............9973 ft AGL. * Transport winds..........South 8 to 9 knots. * Ventilation Category.....Very good (89757 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .THURSDAY...Showers likely and chance of thunderstorms. Lows 70 to 80. Highs 88 to 98. Light winds. Minimum Humidity 35 to 45 pct. .FRIDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 66 to 76. Highs 83 to 93. Light winds. Minimum Humidity 39 to 49 pct. .SATURDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 66 to 76. Highs 84 to 94. Light winds. Minimum Humidity 36 to 46 pct. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 67 to 77. Highs 87 to 97. .MONDAY...Mostly clear. Lows 68 to 78. 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) $$ AZZ151-021415- 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- 229 PM MST Mon Sep 1 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance of showers and thunderstorms in the evening. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........65 to 75 degs. 24 hr Trend...........Down 48 to 52 degs. * 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 (35-45 pct) then becoming mostly cloudy (50-60 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........87 to 97 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............24 to 34 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 20 to 25 mph. * Mixing height............8633 ft AGL. * Transport winds..........Southeast 19 to 20 knots. * Ventilation Category.....Excellent (172660 knot-ft). .TUESDAY NIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct) then becoming partly cloudy (45-55 pct). Slight chance of showers and thunderstorms in the evening. * 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.............59 to 69 pct. 24 hr Trend...........Down 2 to 5 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 (35-45 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..........85 to 95 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............29 to 39 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............5196 ft AGL. * Transport winds..........Southeast 10 knots. * Ventilation Category.....Good (51960 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 83 to 93. Light winds. Minimum Humidity 38 to 48 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 77 to 87. Light winds. Minimum Humidity 43 to 53 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 79 to 89. Light winds. Minimum Humidity 40 to 50 pct. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 82 to 92. .MONDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 61 to 71. Highs 85 to 95. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-021415- 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- 229 PM MST Mon Sep 1 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (65-75 pct). Slight chance of showers and thunderstorms in the evening. * 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.............62 to 72 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East around 20 mph increasing to around 30 mph after midnight. .TUESDAY... * Sky/Weather..............Mostly cloudy (45-55 pct) then becoming partly cloudy (35-45 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...........Down 48 to 52 degs. * Min Humidity.............19 to 29 pct. 24 hr Trend...........Down 7 to 11 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 25 to 30 mph. * Mixing height............8107 ft AGL. * Transport winds..........Southeast 19 to 21 knots. * Ventilation Category.....Excellent (170247 knot-ft). .TUESDAY NIGHT... * Sky/Weather..............Partly cloudy (45-55 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........62 to 72 degs. 24 hr Trend...........Down 48 to 52 degs. * Max Humidity.............48 to 58 pct. 24 hr Trend...........Down 12 to 16 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........Southeast 25 to 30 mph. .WEDNESDAY... * 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..........86 to 96 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast around 20 mph decreasing to around 10 mph in the afternoon. * Mixing height............8920 ft AGL. * Transport winds..........Southeast 10 knots. * Ventilation Category.....Very good (89200 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 85 to 95. Light winds. Minimum Humidity 26 to 36 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 78 to 88. Light winds. Minimum Humidity 35 to 45 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 79 to 89. Light winds. Minimum Humidity 34 to 44 pct. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 59 to 69. Highs 83 to 93. .MONDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 85 to 95. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-021415- 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- 229 PM MST Mon Sep 1 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (65-75 pct). Chance of showers and thunderstorms in the evening. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Min Temperature..........55 to 65 degs. 24 hr Trend...........Down 48 to 52 degs. * Max Humidity.............67 to 77 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..East around 10 mph. * 10000 ft MSL Wind........Southeast 15 to 20 mph. .TUESDAY... * Sky/Weather..............Partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Max Temperature..........75 to 85 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............28 to 38 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 15 to 20 mph. * Mixing height............9974 ft AGL. * Transport winds..........Southeast 16 knots. * Ventilation Category.....Excellent (159584 knot-ft). .TUESDAY NIGHT... * Sky/Weather..............Mostly cloudy (45-55 pct) then becoming partly cloudy (40-50 pct). Slight chance of showers and thunderstorms in the evening. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........54 to 64 degs. 24 hr Trend...........Down 48 to 52 degs. * Max Humidity.............54 to 64 pct. 24 hr Trend...........Down 9 to 13 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the northeast after midnight. * 10000 ft MSL Wind........Southeast 15 to 20 mph. .WEDNESDAY... * Sky/Weather..............Partly cloudy (45-55 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Max Temperature..........76 to 86 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............23 to 33 pct. 24 hr Trend...........Down 4 to 8 pct. * Wind (20 ft/10-min avg)..East around 10 mph shifting to the south in the afternoon. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............10865 ft AGL. * Transport winds..........Southeast 9 to 10 knots. * Ventilation Category.....Excellent (108650 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. 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 70 to 80. Light winds. Minimum Humidity 33 to 43 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 51 to 61. Highs 70 to 80. Light winds. Minimum Humidity 36 to 46 pct. .SUNDAY...Partly cloudy. Chance of thunderstorms and slight chance of showers. Lows 51 to 61. Highs 74 to 84. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 52 to 62. Highs 76 to 86. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-021415- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 229 PM MST Mon Sep 1 2025 .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..........57 to 67 degs. 24 hr Trend...........Down 48 to 52 degs. * Max Humidity.............63 to 73 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 25 to 30 mph. .TUESDAY... * Sky/Weather..............Mostly cloudy (45-55 pct) then becoming partly 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.............28 to 38 pct. 24 hr Trend...........Down 8 to 12 pct. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........Southeast 25 to 30 mph. * Mixing height............9559 ft AGL. * Transport winds..........Southeast 21 to 23 knots. * Ventilation Category.....Excellent (210298 knot-ft). .TUESDAY NIGHT... * Sky/Weather..............Partly cloudy (45-55 pct). Slight chance of showers and thunderstorms in the evening. * 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.............50 to 60 pct. 24 hr Trend...........Down 10 to 14 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 20 to 25 mph. .WEDNESDAY... * Sky/Weather..............Partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Max Temperature..........75 to 85 degs. 24 hr Trend...........Down 48 to 52 degs. * Min Humidity.............31 to 41 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............10477 ft AGL. * Transport winds..........Southeast 11 to 12 knots. * Ventilation Category.....Excellent (120485 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 73 to 83. Light winds. Minimum Humidity 37 to 47 pct. .FRIDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 67 to 77. Light winds. Minimum Humidity 49 to 59 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 53 to 63. Highs 69 to 79. Light winds. Minimum Humidity 45 to 55 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 54 to 64. Highs 72 to 82. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 55 to 65. Highs 75 to 85. 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