


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
586 FNUS55 KTWC 131010 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 310 AM 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 Thursday 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. AZZ150-132215- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 310 AM MST Wed Aug 13 2025 .TODAY... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Max Temperature..........99 to 109 degs. 24 hr Trend...........Little change. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............11179 ft AGL. * Transport winds..........South 13 knots shifting to the northwest 12 knots in the afternoon. * Ventilation Category.....Excellent (134148 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (45-55 pct) then becoming mostly cloudy (45-55 pct). 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...........Little change. * Max Humidity.............46 to 56 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Breezy. South 15 to 25 mph. * 10000 ft MSL Wind........North 10 to 15 mph. .THURSDAY... * Sky/Weather..............Partly cloudy (40-50 pct) then becoming mostly cloudy (65-75 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 2 to 5 degs. * Min Humidity.............20 to 30 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............9526 ft AGL. * Transport winds..........Southwest 9 to 11 knots. * Ventilation Category.....Excellent (104786 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 75 to 85. Highs 94 to 104. South wind around 15 mph. Minimum Humidity 26 to 36 pct. .SATURDAY...Partly cloudy. Chance of showers and slight chance of 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 93 to 103. Light winds. Minimum Humidity 19 to 29 pct. .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. Highs 95 to 105. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. 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) $$ AZZ151-132215- 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- 310 AM MST Wed Aug 13 2025 .TODAY... * Sky/Weather..............Partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........92 to 102 degs. 24 hr Trend...........Little change. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 20 mph in the afternoon. * 10000 ft MSL Wind........North 10 to 15 mph. * Mixing height............9684 ft AGL. * Transport winds..........West 8 knots shifting to the north 14 knots in the afternoon. * Ventilation Category.....Excellent (135576 knot-ft). .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.............62 to 72 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Breezy. South around 25 mph decreasing to around 10 mph after midnight. * 10000 ft MSL Wind........North around 10 mph shifting to the east after midnight. .THURSDAY... * Sky/Weather..............Mostly cloudy (50-60 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........89 to 99 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............23 to 33 pct. 24 hr Trend...........Up 3 to 6 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 west in the afternoon. * Mixing height............9628 ft AGL. * Transport winds..........Southwest 7 knots shifting to the west in the afternoon. * Ventilation Category.....Excellent (115536 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 65 to 75. Highs 85 to 95. Light winds. Minimum Humidity 32 to 42 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 85 to 95. Southwest wind around 15 mph. Minimum Humidity 31 to 41 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 86 to 96. Light winds. Minimum Humidity 25 to 35 pct. .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 87 to 97. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. 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) $$ AZZ152-132215- 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- 310 AM MST Wed Aug 13 2025 .TODAY... * Sky/Weather..............Partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........91 to 101 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............17 to 27 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Breezy. Light winds becoming northwest around 25 mph in the afternoon. * 10000 ft MSL Wind........North around 15 mph becoming northeast around 5 mph in the afternoon. * Mixing height............10150 ft AGL. * Transport winds..........Northwest 7 knots increasing to north 19 knots in the afternoon. * Ventilation Category.....Excellent (192850 knot-ft). .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.............61 to 71 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Windy. West around 30 mph becoming southwest around 10 mph after midnight. * 10000 ft MSL Wind........Northeast 5 to 10 mph. .THURSDAY... * Sky/Weather..............Partly cloudy (40-50 pct) then becoming mostly cloudy (65-75 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........89 to 99 degs. 24 hr Trend...........Little change. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........North around 5 mph shifting to the west in the afternoon. * Mixing height............6690 ft AGL. * Transport winds..........West 8 to 12 knots. * Ventilation Category.....Very good (80280 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 64 to 74. Highs 86 to 96. Light winds. Minimum Humidity 29 to 39 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 85 to 95. Light winds. Minimum Humidity 28 to 38 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 86 to 96. Light winds. Minimum Humidity 24 to 34 pct. .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 86 to 96. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 89 to 99. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-132215- 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- 310 AM MST Wed Aug 13 2025 .TODAY... * Sky/Weather..............Partly cloudy (25-35 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..........82 to 92 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..Windy. Light winds becoming west around 30 mph in the afternoon. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............10740 ft AGL. * Transport winds..........Northwest 11 knots increasing to 24 knots in the afternoon. * Ventilation Category.....Excellent (257760 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (60-70 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...........Up 1 deg. * Max Humidity.............52 to 62 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Breezy. West around 25 mph becoming northwest around 10 mph after midnight. * 10000 ft MSL Wind........Southeast around 10 mph shifting to the north after midnight. .THURSDAY... * Sky/Weather..............Partly cloudy (45-55 pct) then becoming mostly cloudy (70-80 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Max Temperature..........81 to 91 degs. 24 hr Trend...........Little change. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........Northeast around 5 mph shifting to the southwest in the afternoon. * Mixing height............9105 ft AGL. * Transport winds..........Northwest 9 to 11 knots. * Ventilation Category.....Excellent (100155 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 57 to 67. Highs 76 to 86. Light winds. Minimum Humidity 28 to 38 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 76 to 86. Light winds. Minimum Humidity 29 to 39 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 56 to 66. Highs 77 to 87. Light winds. Minimum Humidity 25 to 35 pct. .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 77 to 87. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 79 to 89. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-132215- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 310 AM MST Wed Aug 13 2025 .TODAY... * 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..........81 to 91 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............26 to 36 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Light winds becoming north around 15 mph in the afternoon. * 10000 ft MSL Wind........North around 15 mph becoming northeast around 5 mph in the afternoon. * Mixing height............10760 ft AGL. * Transport winds..........North 8 to 12 knots. * Ventilation Category.....Excellent (107600 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (60-70 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.............59 to 69 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..West around 20 mph becoming southwest around 10 mph after midnight. * 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 (75-85 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.............30 to 40 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........West 5 to 10 mph. * Mixing height............8716 ft AGL. * Transport winds..........West 7 to 11 knots. * Ventilation Category.....Very good (78444 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 59 to 69. Highs 74 to 84. Light winds. Minimum Humidity 40 to 50 pct. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 74 to 84. Light winds. Minimum Humidity 42 to 52 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 75 to 85. Light winds. Minimum Humidity 33 to 43 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 75 to 85. .TUESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 78 to 88. 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