


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
102 FNUS55 KTWC 222050 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 150 PM MST Fri Aug 22 2025 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION... Expect daily chances for rain showers and thunderstorms into next week with day to day variability of intensity and coverage of storms. Temperatures will be running above normal through the weekend with an Extreme Heat Warning in effect today for the lower elevations. Winds will generally remain less than 15 mph with the afternoon gustiness into next week. Min RHs will be 15-20 percent in the low elevations and 20-30 percent in the mountains through the weekend. Deep monsoon moisture will return early next week to provide higher wetting rain chances and coverage as well as better min RHs and below normal temperatures. AZZ150-231430- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 150 PM MST Fri Aug 22 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Min Temperature..........75 to 85 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............50 to 60 pct. 24 hr Trend...........Down 9 to 13 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph shifting to the south after midnight. * 10000 ft MSL Wind........Northeast 5 to 10 mph. .SATURDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Max Temperature..........98 to 108 degs. 24 hr Trend...........Little change. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Light winds. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............13700 ft AGL. * Transport winds..........South 9 knots shifting to the northwest in the afternoon. * Ventilation Category.....Excellent (123300 knot-ft). .SATURDAY NIGHT... * Sky/Weather..............Partly cloudy (45-55 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Min Temperature..........75 to 85 degs. 24 hr Trend...........Little change. * Max Humidity.............47 to 57 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..West around 10 mph shifting to the south after midnight. * 10000 ft MSL Wind........East 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (25-35 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Max Temperature..........99 to 109 degs. 24 hr Trend...........Little change. * Min Humidity.............16 to 26 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........East 5 to 10 mph. * Mixing height............13911 ft AGL. * Transport winds..........East 9 to 10 knots. * Ventilation Category.....Excellent (139110 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .MONDAY...Showers likely and chance of thunderstorms. Lows 75 to 85. Highs 96 to 106. Light winds. Minimum Humidity 22 to 32 pct. .TUESDAY...Showers likely and chance of thunderstorms. Lows 72 to 82. Highs 88 to 98. Light winds. Minimum Humidity 33 to 43 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 70 to 80. Highs 86 to 96. Light winds. Minimum Humidity 35 to 45 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 70 to 80. Highs 88 to 98. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 69 to 79. 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) $$ AZZ151-231430- 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- 150 PM MST Fri Aug 22 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Min Temperature..........66 to 76 degs. 24 hr Trend...........Little change. * Max Humidity.............54 to 64 pct. 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..West around 10 mph shifting to the southeast after midnight. * 10000 ft MSL Wind........East 5 to 10 mph. .SATURDAY... * Sky/Weather..............Mostly sunny (10-20 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..........93 to 103 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............17 to 27 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Light winds becoming southeast around 10 mph in the afternoon. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............12386 ft AGL. * Transport winds..........Southeast 9 to 10 knots. * Ventilation Category.....Excellent (123860 knot-ft). .SATURDAY NIGHT... * 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..........66 to 76 degs. 24 hr Trend...........Little change. * Max Humidity.............47 to 57 pct. 24 hr Trend...........Down 4 to 8 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph shifting to the southeast after midnight. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (25-35 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........92 to 102 degs. 24 hr Trend...........Little change. * Min Humidity.............14 to 23 pct. 24 hr Trend...........Down 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............13908 ft AGL. * Transport winds..........Southeast 11 to 13 knots. * Ventilation Category.....Excellent (180804 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 66 to 76. Highs 91 to 101. Light winds. Minimum Humidity 22 to 32 pct. .TUESDAY...Showers likely and chance of thunderstorms. Lows 64 to 74. Highs 84 to 94. Light winds. Minimum Humidity 37 to 47 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 82 to 92. Light winds. Minimum Humidity 38 to 48 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 83 to 93. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 62 to 72. Highs 86 to 96. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-231430- 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- 150 PM MST Fri Aug 22 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Min Temperature..........66 to 76 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............41 to 51 pct. 24 hr Trend...........Down 12 to 16 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast around 5 mph shifting to the northeast after midnight. .SATURDAY... * Sky/Weather..............Mostly sunny (10-20 pct) then becoming partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........92 to 102 degs. 24 hr Trend...........Little change. * Min Humidity.............14 to 24 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........East 5 to 10 mph. * Mixing height............11309 ft AGL. * Transport winds..........Southeast 8 to 9 knots. * Ventilation Category.....Excellent (101781 knot-ft). .SATURDAY NIGHT... * 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..........66 to 76 degs. 24 hr Trend...........Little change. * Max Humidity.............37 to 47 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........91 to 101 degs. 24 hr Trend...........Little change. * Min Humidity.............13 to 23 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............10677 ft AGL. * Transport winds..........Southeast 14 knots. * Ventilation Category.....Excellent (149478 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .MONDAY...Partly cloudy. Chance of thunderstorms and slight chance of showers. Lows 65 to 75. Highs 91 to 101. Southeast wind around 15 mph. Minimum Humidity 14 to 24 pct. .TUESDAY...Showers likely and chance of thunderstorms. Lows 64 to 74. Highs 86 to 96. Light winds. Minimum Humidity 28 to 38 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 82 to 92. Light winds. Minimum Humidity 35 to 45 pct. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 83 to 93. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 62 to 72. Highs 86 to 96. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-231430- 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- 150 PM MST Fri Aug 22 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..........58 to 68 degs. 24 hr Trend...........Little change. * Max Humidity.............46 to 56 pct. 24 hr Trend...........Down 23 to 27 pct. * Wind (20 ft/10-min avg)..South around 10 mph in the evening becoming light. * 10000 ft MSL Wind........Southwest 10 to 15 mph. .SATURDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (40-50 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...........Up 1 deg. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Light winds becoming south around 10 mph in the afternoon. * 10000 ft MSL Wind........South 5 to 10 mph. * Mixing height............11155 ft AGL. * Transport winds..........Southeast 7 to 9 knots. * Ventilation Category.....Excellent (100395 knot-ft). .SATURDAY NIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........59 to 69 degs. 24 hr Trend...........Little change. * Max Humidity.............46 to 56 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the east after midnight. * 10000 ft MSL Wind........South 10 to 15 mph. .SUNDAY... * 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..........80 to 90 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........South 10 to 15 mph. * Mixing height............11155 ft AGL. * Transport winds..........Southeast 10 to 14 knots. * Ventilation Category.....Excellent (156170 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 80 to 90. Light winds. Minimum Humidity 20 to 30 pct. .TUESDAY...Showers likely and chance of thunderstorms. Lows 57 to 67. Highs 77 to 87. Light winds. Minimum Humidity 26 to 36 pct. .WEDNESDAY...Thunderstorms likely and chance of showers. Lows 55 to 65. Highs 71 to 81. Light winds. Minimum Humidity 44 to 54 pct. .THURSDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 54 to 64. Highs 73 to 83. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 54 to 64. Highs 75 to 85. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-231430- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 150 PM MST Fri Aug 22 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Little change. * Max Humidity.............42 to 52 pct. 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........East 10 to 15 mph. .SATURDAY... * Sky/Weather..............Mostly sunny (10-20 pct) then becoming partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........82 to 92 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............19 to 29 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............12049 ft AGL. * Transport winds..........East 11 knots. * Ventilation Category.....Excellent (132539 knot-ft). .SATURDAY NIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Little change. * Max Humidity.............38 to 48 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (15-25 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........80 to 90 degs. 24 hr Trend...........Little change. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............12497 ft AGL. * Transport winds..........Southeast 13 to 15 knots. * Ventilation Category.....Excellent (174958 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 80 to 90. Southeast wind around 15 mph. Minimum Humidity 21 to 31 pct. .TUESDAY...Showers likely and chance of thunderstorms. Lows 59 to 69. Highs 75 to 85. Southwest wind around 15 mph. Minimum Humidity 39 to 49 pct. .WEDNESDAY...Showers and thunderstorms likely. Lows 57 to 67. Highs 72 to 82. Light winds. Minimum Humidity 48 to 58 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 73 to 83. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 57 to 67. 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