


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
355 FNUS55 KTWC 132106 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 206 PM MST Wed Aug 13 2025 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...High temperatures will remain several degrees above through tomorrow then near normal Friday into this weekend. Today will be an active thunderstorm day across Southeast Arizona as the storms will be capable of producing strong, gusty and erratic outflows to 40-45 mph with areas of dense blowing dust possible in the valleys. Although the highest chances and coverage for wetting rain showers and thunderstorms will be today through Friday. Daily chances for thunderstorms and wetting rains will persist this weekend into next week with daily variability in coverage and intensity. Min RHs will generally be around 15-25 percent in the lower elevations and 20-35+ percent in the mountains through Thursday, increasing Friday and Saturday as deeper moisture tracks across the area. Winds will generally be less than 15 mph with typical afternoon gusts up to 20 mph into next week. AZZ150-141415- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 206 PM MST Wed Aug 13 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (40-50 pct). Patchy blowing dust. Chance of showers and slight chance of thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........20 pct. * Min Temperature..........74 to 84 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............44 to 54 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........North 10 to 15 mph. .THURSDAY... * Sky/Weather..............Partly cloudy (35-45 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..........97 to 107 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Northeast around 5 mph shifting to the west in the afternoon. * Mixing height............9868 ft AGL. * Transport winds..........Southwest 11 to 13 knots. * Ventilation Category.....Excellent (128284 knot-ft). .THURSDAY NIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct) then becoming partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Min Temperature..........74 to 84 degs. 24 hr Trend...........Little change. * Max Humidity.............54 to 64 pct. 24 hr Trend...........Up 9 to 13 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........Southwest 5 to 10 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (25-35 pct) then becoming mostly cloudy (65-75 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........20 pct. * Max Temperature..........93 to 103 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............31 to 41 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............9603 ft AGL. * Transport winds..........South 17 to 19 knots. * Ventilation Category.....Excellent (182457 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. Highs 93 to 103. South wind around 15 mph. Minimum Humidity 22 to 32 pct. .SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 70 to 80. Highs 94 to 104. Light winds. Minimum Humidity 16 to 26 pct. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 70 to 80. Highs 96 to 106. Light winds. Minimum Humidity 14 to 24 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. Highs 97 to 107. .WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 74 to 84. Highs 99 to 109. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-141415- 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- 206 PM MST Wed Aug 13 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (60-70 pct). Chance of thunderstorms and slight chance of showers. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Min Temperature..........65 to 75 degs. 24 hr Trend...........Little change. * Max Humidity.............59 to 69 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the southeast after midnight. * 10000 ft MSL Wind........Northeast around 10 mph shifting to the east after midnight. .THURSDAY... * Sky/Weather..............Mostly cloudy (50-60 pct). Chance of thunderstorms and slight chance of showers. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........89 to 99 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............24 to 34 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........South 5 to 10 mph. * Mixing height............9234 ft AGL. * Transport winds..........Southwest 8 to 11 knots. * Ventilation Category.....Excellent (101574 knot-ft). .THURSDAY 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..........65 to 75 degs. 24 hr Trend...........Little change. * Max Humidity.............68 to 78 pct. 24 hr Trend...........Up 7 to 11 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph. * 10000 ft MSL Wind........West 5 to 10 mph. .FRIDAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........20 pct. * Max Temperature..........85 to 95 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............33 to 43 pct. 24 hr Trend...........Up 9 to 13 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........West 5 to 10 mph. * Mixing height............8712 ft AGL. * Transport winds..........Southwest 9 to 11 knots. * Ventilation Category.....Very good (95832 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 63 to 73. Highs 85 to 95. Light winds. Minimum Humidity 33 to 43 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 87 to 97. Light winds. Minimum Humidity 23 to 33 pct. .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 89 to 99. Light winds. Minimum Humidity 23 to 33 pct. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. Highs 90 to 100. .WEDNESDAY...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) $$ AZZ152-141415- 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- 206 PM MST Wed Aug 13 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Min Temperature..........65 to 75 degs. 24 hr Trend...........Little change. * Max Humidity.............58 to 68 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........East 5 to 10 mph. .THURSDAY... * Sky/Weather..............Partly cloudy (40-50 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..........90 to 100 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............22 to 32 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..West around 10 mph. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............8734 ft AGL. * Transport winds..........West 10 to 13 knots. * Ventilation Category.....Excellent (113542 knot-ft). .THURSDAY 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..........65 to 75 degs. 24 hr Trend...........Little change. * Max Humidity.............65 to 75 pct. 24 hr Trend...........Up 6 to 10 pct. * Wind (20 ft/10-min avg)..West around 10 mph. * 10000 ft MSL Wind........West 5 to 10 mph. .FRIDAY... * Sky/Weather..............Mostly cloudy (65-75 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........85 to 95 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............31 to 41 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..West around 10 mph. * 10000 ft MSL Wind........West 5 to 10 mph. * Mixing height............6006 ft AGL. * Transport winds..........West 9 to 13 knots. * Ventilation Category.....Very good (78078 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 85 to 95. Light winds. Minimum Humidity 31 to 41 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 87 to 97. Light winds. Minimum Humidity 23 to 33 pct. .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 88 to 98. Light winds. Minimum Humidity 25 to 35 pct. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. Highs 89 to 99. .WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. 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) $$ AZZ153-141415- 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- 206 PM MST Wed Aug 13 2025 .TONIGHT... * 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..........57 to 67 degs. 24 hr Trend...........Up 1 deg. * Max Humidity.............50 to 60 pct. 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........East 5 to 10 mph. .THURSDAY... * Sky/Weather..............Partly cloudy (45-55 pct) then becoming mostly cloudy (55-65 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........80 to 90 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............25 to 35 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........Southeast around 5 mph shifting to the southwest in the afternoon. * Mixing height............10158 ft AGL. * Transport winds..........Northwest 9 to 13 knots. * Ventilation Category.....Excellent (132054 knot-ft). .THURSDAY NIGHT... * Sky/Weather..............Mostly cloudy (65-75 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Min Temperature..........57 to 67 degs. 24 hr Trend...........Little change. * Max Humidity.............59 to 69 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........West 10 to 15 mph. .FRIDAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........20 pct. * Max Temperature..........76 to 86 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............34 to 44 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........West 10 to 15 mph. * Mixing height............8479 ft AGL. * Transport winds..........West 9 to 11 knots. * Ventilation Category.....Very good (93269 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 76 to 86. Light winds. Minimum Humidity 32 to 42 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 77 to 87. Light winds. Minimum Humidity 28 to 38 pct. .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 56 to 66. Highs 79 to 89. Light winds. Minimum Humidity 28 to 38 pct. .TUESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 80 to 90. .WEDNESDAY...Showers and thunderstorms likely. 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) $$ AZZ154-141415- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 206 PM MST Wed Aug 13 2025 .TONIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Min Temperature..........60 to 70 degs. 24 hr Trend...........Little change. * Max Humidity.............54 to 64 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........Northeast around 5 mph shifting to the southeast after midnight. .THURSDAY... * Sky/Weather..............Partly cloudy (40-50 pct) then becoming mostly cloudy (60-70 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........78 to 88 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............31 to 41 pct. 24 hr Trend...........Up 5 to 9 pct. * Wind (20 ft/10-min avg)..West around 10 mph. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............9885 ft AGL. * Transport winds..........West 9 to 10 knots. * Ventilation Category.....Very good (93907 knot-ft). .THURSDAY NIGHT... * Sky/Weather..............Mostly cloudy (70-80 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Min Temperature..........59 to 69 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............66 to 76 pct. 24 hr Trend...........Up 11 to 15 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph. * 10000 ft MSL Wind........West 5 to 10 mph. .FRIDAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........20 pct. * Max Temperature..........74 to 84 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............45 to 55 pct. 24 hr Trend...........Up 13 to 17 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph. * 10000 ft MSL Wind........West 5 to 10 mph. * Mixing height............7624 ft AGL. * Transport winds..........West 9 to 11 knots. * Ventilation Category.....Very good (76240 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 74 to 84. Light winds. Minimum Humidity 44 to 54 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 76 to 86. Light winds. Minimum Humidity 36 to 46 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 77 to 87. Light winds. Minimum Humidity 35 to 45 pct. .TUESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 79 to 89. .WEDNESDAY...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 $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson