


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
447 FNUS55 KTWC 240945 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 245 AM MST Sun Aug 24 2025 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION....Expect daily chances for rain showers and thunderstorms this week with day to day variability of intensity and coverage of storms. Temperatures will be running above normal again today with an Extreme Heat Warning in effect 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 early this week to provide higher wetting rain chances and coverage as well as better min RHs and below normal temperatures. AZZ150-242300- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 245 AM MST Sun Aug 24 2025 .TODAY... * 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..........99 to 109 degs. 24 hr Trend...........Little change. * Min Humidity.............15 to 25 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........Southeast 5 to 10 mph. * Mixing height............14619 ft AGL. * Transport winds..........Southeast 9 knots. * Ventilation Category.....Excellent (131571 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (40-50 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...........Down 1 deg. * Max Humidity.............53 to 63 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..West around 10 mph shifting to the southwest after midnight. * 10000 ft MSL Wind........Southeast 5 to 10 mph. .MONDAY... * Sky/Weather..............Partly cloudy (30-40 pct) then becoming mostly cloudy (60-70 pct). Thunderstorms likely and chance of showers. * Chance of Precip.........60 pct. * Chance of Thunder........60 pct. * Max Temperature..........94 to 104 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............25 to 35 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............9919 ft AGL. * Transport winds..........West 11 to 14 knots. * Ventilation Category.....Excellent (138866 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Showers likely and chance of thunderstorms. Lows 71 to 81. Highs 88 to 98. Light winds. Minimum Humidity 34 to 44 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 69 to 79. Highs 88 to 98. Light winds. Minimum Humidity 32 to 42 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 70 to 80. Highs 90 to 100. Light winds. Minimum Humidity 24 to 34 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 69 to 79. Highs 92 to 102. .SATURDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 69 to 79. Highs 93 to 103. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-242300- 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- 245 AM MST Sun Aug 24 2025 .TODAY... * Sky/Weather..............Mostly sunny (10-20 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..........93 to 103 degs. 24 hr Trend...........Little change. * Min Humidity.............14 to 24 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............12253 ft AGL. * Transport winds..........East 11 knots. * Ventilation Category.....Excellent (134783 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........65 to 75 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............55 to 65 pct. 24 hr Trend...........Up 10 to 14 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .MONDAY... * Sky/Weather..............Partly cloudy (20-30 pct) then becoming mostly cloudy (60-70 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...........Down 2 to 5 degs. * Min Humidity.............25 to 35 pct. 24 hr Trend...........Up 9 to 13 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............7647 ft AGL. * Transport winds..........Southwest 8 knots shifting to the north 9 knots in the afternoon. * Ventilation Category.....Good (68823 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 83 to 93. Light winds. Minimum Humidity 39 to 49 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...Partly cloudy. Slight chance of showers and thunderstorms. Lows 62 to 72. Highs 84 to 94. Light winds. Minimum Humidity 29 to 39 pct. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 61 to 71. Highs 85 to 95. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 61 to 71. Highs 87 to 97. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-242300- 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- 245 AM MST Sun Aug 24 2025 .TODAY... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........91 to 101 degs. 24 hr Trend...........Little change. * Min Humidity.............12 to 22 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............10232 ft AGL. * Transport winds..........Southeast 13 to 15 knots. * Ventilation Category.....Excellent (153480 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (40-50 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Min Temperature..........67 to 77 degs. 24 hr Trend...........Little change. * Max Humidity.............38 to 48 pct. 24 hr Trend...........Up 5 to 9 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .MONDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........90 to 100 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............16 to 26 pct. 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............10071 ft AGL. * Transport winds..........Southeast 9 knots. * Ventilation Category.....Very good (90639 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Showers likely and chance of thunderstorms. Lows 64 to 74. Highs 85 to 95. Light winds. Minimum Humidity 31 to 41 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 83 to 93. Light winds. Minimum Humidity 36 to 46 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 61 to 71. Highs 84 to 94. Light winds. Minimum Humidity 28 to 38 pct. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 61 to 71. Highs 85 to 95. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 61 to 71. 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) $$ AZZ153-242300- 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- 245 AM MST Sun Aug 24 2025 .TODAY... * Sky/Weather..............Mostly sunny (20-30 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..........80 to 90 degs. 24 hr Trend...........Little change. * Min Humidity.............19 to 29 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........South 5 to 10 mph. * Mixing height............10552 ft AGL. * Transport winds..........South 10 to 15 knots. * Ventilation Category.....Excellent (158280 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (50-60 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.............44 to 54 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..East around 10 mph. * 10000 ft MSL Wind........South 10 to 15 mph. .MONDAY... * Sky/Weather..............Partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........80 to 90 degs. 24 hr Trend...........Little change. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southeast 5 to 10 mph. * Mixing height............11260 ft AGL. * Transport winds..........Southeast 9 knots shifting to the south 8 knots in the afternoon. * Ventilation Category.....Very good (90080 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Showers likely and chance of thunderstorms. Lows 57 to 67. Highs 76 to 86. Light winds. Minimum Humidity 27 to 37 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 72 to 82. Light winds. Minimum Humidity 44 to 54 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 53 to 63. Highs 74 to 84. Light winds. Minimum Humidity 32 to 42 pct. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 53 to 63. Highs 75 to 85. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 53 to 63. 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) $$ AZZ154-242300- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 245 AM MST Sun Aug 24 2025 .TODAY... * Sky/Weather..............Partly cloudy (30-40 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........81 to 91 degs. 24 hr Trend...........Little change. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..East around 10 mph. * 10000 ft MSL Wind........East 15 to 20 mph. * Mixing height............11735 ft AGL. * Transport winds..........East 13 to 14 knots. * Ventilation Category.....Excellent (158422 knot-ft). .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...........Up 7 to 11 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .MONDAY... * Sky/Weather..............Partly cloudy (40-50 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Max Temperature..........79 to 89 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............25 to 35 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............11067 ft AGL. * Transport winds..........Southeast 8 to 9 knots. * Ventilation Category.....Very good (94069 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Showers likely and chance of thunderstorms. Lows 58 to 68. Highs 74 to 84. Southwest wind around 15 mph. Minimum Humidity 43 to 53 pct. .WEDNESDAY...Showers and thunderstorms likely. Lows 56 to 66. Highs 72 to 82. Light winds. Minimum Humidity 48 to 58 pct. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 56 to 66. Highs 73 to 83. Light winds. Minimum Humidity 36 to 46 pct. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 56 to 66. Highs 75 to 85. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 56 to 66. Highs 76 to 86. 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