


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
697 FNUS55 KTWC 231005 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 305 AM MST Sat Aug 23 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 this weekend 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 return early next week to provide higher wetting rain chances and coverage as well as better min RHs and below normal temperatures. AZZ150-232300- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 305 AM MST Sat Aug 23 2025 .TODAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (25-35 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...........Up 1 deg. * Min Humidity.............17 to 27 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............13884 ft AGL. * Transport winds..........South 10 knots. * Ventilation Category.....Excellent (138840 knot-ft). .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...........Little change. * Max Humidity.............48 to 58 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..West around 10 mph shifting to the southwest after midnight. * 10000 ft MSL Wind........East 10 to 15 mph. .SUNDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........20 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...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the south in the afternoon. * 10000 ft MSL Wind........East 5 to 10 mph. * Mixing height............14563 ft AGL. * Transport winds..........East 7 to 8 knots. * Ventilation Category.....Excellent (116504 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 71 to 81. Highs 87 to 97. Light winds. Minimum Humidity 38 to 48 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 69 to 79. Highs 87 to 97. Light winds. Minimum Humidity 37 to 47 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 69 to 79. 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) $$ AZZ151-232300- 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- 305 AM MST Sat Aug 23 2025 .TODAY... * Sky/Weather..............Mostly sunny (5-15 pct) then becoming partly cloudy (25-35 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.............16 to 26 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..Light winds becoming southeast around 10 mph in the afternoon. * 10000 ft MSL Wind........East 5 to 10 mph. * Mixing height............12177 ft AGL. * Transport winds..........Southeast 9 to 11 knots. * Ventilation Category.....Excellent (133947 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..........66 to 76 degs. 24 hr Trend...........Little change. * Max Humidity.............48 to 58 pct. 24 hr Trend...........Down 6 to 10 pct. * Wind (20 ft/10-min avg)..West around 10 mph shifting to the east after midnight. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 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 10 to 15 mph. * Mixing height............12628 ft AGL. * Transport winds..........Southeast 11 to 12 knots. * Ventilation Category.....Excellent (151536 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 90 to 100. Light winds. Minimum Humidity 22 to 32 pct. .TUESDAY...Mostly cloudy. Chance of thunderstorms and slight chance of showers. Lows 64 to 74. Highs 84 to 94. Light winds. Minimum Humidity 42 to 52 pct. .WEDNESDAY...Thunderstorms likely and chance of showers. Lows 62 to 72. Highs 81 to 91. Light winds. Minimum Humidity 42 to 52 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 82 to 92. .FRIDAY...Partly cloudy. 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) $$ AZZ152-232300- 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- 305 AM MST Sat Aug 23 2025 .TODAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........92 to 102 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............12 to 22 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. * Mixing height............11281 ft AGL. * Transport winds..........Southeast 9 to 11 knots. * Ventilation Category.....Excellent (124091 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.............36 to 46 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..East around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........91 to 101 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............12 to 22 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........Southeast 5 to 10 mph. * Mixing height............10140 ft AGL. * Transport winds..........Southeast 14 to 15 knots. * Ventilation Category.....Excellent (152100 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .MONDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 65 to 75. Highs 90 to 100. Southeast wind around 15 mph. Minimum Humidity 15 to 25 pct. .TUESDAY...Showers likely and chance of thunderstorms. Lows 64 to 74. Highs 87 to 97. Light winds. Minimum Humidity 31 to 41 pct. .WEDNESDAY...Thunderstorms likely and chance of showers. Lows 62 to 72. Highs 80 to 90. Light winds. Minimum Humidity 42 to 52 pct. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 83 to 93. .FRIDAY...Partly cloudy. 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) $$ AZZ153-232300- 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- 305 AM MST Sat Aug 23 2025 .TODAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Max Temperature..........81 to 91 degs. 24 hr Trend...........Little change. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph shifting to the south in the afternoon. * 10000 ft MSL Wind........South 5 to 10 mph. * Mixing height............11521 ft AGL. * Transport winds..........Southeast 9 to 10 knots. * Ventilation Category.....Excellent (115210 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (50-60 pct) then becoming partly cloudy (45-55 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.............43 to 53 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the east after midnight. * 10000 ft MSL Wind........South 15 to 20 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (20-30 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..........80 to 90 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Southeast 10 to 15 mph. * 10000 ft MSL Wind........South 5 to 10 mph. * Mixing height............10646 ft AGL. * Transport winds..........South 10 to 15 knots. * Ventilation Category.....Excellent (159690 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 59 to 69. Highs 80 to 90. Light winds. Minimum Humidity 19 to 29 pct. .TUESDAY...Mostly cloudy. Chance of thunderstorms and slight chance of showers. Lows 57 to 67. Highs 77 to 87. Light winds. Minimum Humidity 27 to 37 pct. .WEDNESDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 68 to 78. Light winds. Minimum Humidity 56 to 66 pct. .THURSDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 53 to 63. Highs 72 to 82. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 53 to 63. 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) $$ AZZ154-232300- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 305 AM MST Sat Aug 23 2025 .TODAY... * Sky/Weather..............Mostly sunny (5-15 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..........82 to 92 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............17 to 27 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............11997 ft AGL. * Transport winds..........East 11 to 12 knots. * Ventilation Category.....Excellent (137965 knot-ft). .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..........61 to 71 degs. 24 hr Trend...........Little change. * Max Humidity.............38 to 48 pct. 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..East around 10 mph. * 10000 ft MSL Wind........Southeast 10 to 15 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........81 to 91 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............19 to 29 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..East 10 to 15 mph. * 10000 ft MSL Wind........East 10 to 15 mph. * Mixing height............11386 ft AGL. * Transport winds..........Southeast 13 to 14 knots. * Ventilation Category.....Excellent (153711 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 61 to 71. Highs 80 to 90. Southeast wind around 15 mph. Minimum Humidity 22 to 32 pct. .TUESDAY...Showers and chance of thunderstorms. Lows 59 to 69. Highs 75 to 85. Light winds. Minimum Humidity 41 to 51 pct. .WEDNESDAY...Thunderstorms likely and chance of showers. Lows 56 to 66. Highs 70 to 80. Light winds. Minimum Humidity 55 to 65 pct. .THURSDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 65. Highs 72 to 82. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 56 to 66. Highs 74 to 84. 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