


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
420 FNUS55 KTWC 120915 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 215 AM MST Sun Oct 12 2025 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Scattered to numerous showers and isolated to widely scattered thunderstorms today and Monday. Drier conditions start to move in on Tuesday with dry conditions area wide Wednesday into next weekend. Minimum RH values will be at least 35+ percent in the valley`s, with higher values in the mountains into Tuesday. Min RH values lower into the 18-25 percent range in the valleys the second half of this week. 20-foot sustained wind speeds will generally be 15 mph or less through this week, with occasional gusts to 20-25 mph. High temperatures will be below normal through the next 7 days. AZZ150-122215- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 215 AM MST Sun Oct 12 2025 .TODAY... * Sky/Weather..............Mostly cloudy (60-70 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........50 pct. * Max Temperature..........77 to 87 degs. 24 hr Trend...........Down 6 to 10 degs. * Min Humidity.............60 to 70 pct. 24 hr Trend...........Up 15 to 19 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Mixing height............3830 ft AGL. * Transport winds..........South 10 knots. * Ventilation Category.....Fair (38300 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (55-65 pct). Chance of showers and thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........50 pct. * Min Temperature..........62 to 72 degs. 24 hr Trend...........Down 1 to 4 degs. * Max Humidity.............86 to 96 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........Southwest 15 to 20 mph. .COLUMBUS DAY... * Sky/Weather..............Mostly cloudy (45-55 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..........74 to 84 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............51 to 61 pct. 24 hr Trend...........Down 4 to 8 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........South 25 to 30 mph. * Mixing height............4854 ft AGL. * Transport winds..........South 20 to 24 knots. * Ventilation Category.....Excellent (116496 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 57 to 67. Highs 75 to 85. South wind around 15 mph. Minimum Humidity 35 to 45 pct. .WEDNESDAY...Mostly clear. Lows 52 to 62. Highs 73 to 83. Light winds. Minimum Humidity 31 to 41 pct. .THURSDAY...Clear. Lows 49 to 59. Highs 71 to 81. Light winds. Minimum Humidity 23 to 33 pct. .FRIDAY...Mostly clear. Lows 48 to 58. Highs 74 to 84. .SATURDAY...Mostly clear. Lows 49 to 59. Highs 75 to 85. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-122215- 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- 215 AM MST Sun Oct 12 2025 .TODAY... * Sky/Weather..............Mostly cloudy (75-85 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........80 pct. * Chance of Thunder........50 pct. * Max Temperature..........70 to 80 degs. 24 hr Trend...........Down 6 to 10 degs. * Min Humidity.............66 to 76 pct. 24 hr Trend...........Up 16 to 20 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........Southwest 15 to 20 mph. * Mixing height............3202 ft AGL. * Transport winds..........South 8 to 10 knots. * Ventilation Category.....Fair (32020 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (70-80 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........70 pct. * Chance of Thunder........50 pct. * Min Temperature..........57 to 67 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............88 to 98 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........Southwest 10 to 15 mph. .COLUMBUS DAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........70 pct. * Chance of Thunder........50 pct. * Max Temperature..........68 to 78 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............65 to 75 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........Southwest around 20 mph increasing to around 30 mph in the afternoon. * Mixing height............3778 ft AGL. * Transport winds..........South 16 to 21 knots. * Ventilation Category.....Very good (79338 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 52 to 62. Highs 73 to 83. South wind around 20 mph. Minimum Humidity 40 to 50 pct. .WEDNESDAY...Mostly clear. Lows 49 to 59. Highs 73 to 83. Light winds. Minimum Humidity 34 to 44 pct. .THURSDAY...Mostly clear. Lows 44 to 54. Highs 68 to 78. Light winds. Minimum Humidity 28 to 38 pct. .FRIDAY...Mostly clear. Lows 42 to 52. Highs 69 to 79. .SATURDAY...Mostly clear. Lows 43 to 53. Highs 70 to 80. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-122215- 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- 215 AM MST Sun Oct 12 2025 .TODAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........70 pct. * Chance of Thunder........50 pct. * Max Temperature..........69 to 79 degs. 24 hr Trend...........Down 6 to 10 degs. * Min Humidity.............63 to 73 pct. 24 hr Trend...........Up 16 to 20 pct. * Wind (20 ft/10-min avg)..Light winds becoming south around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Mixing height............3170 ft AGL. * Transport winds..........South 8 to 12 knots. * Ventilation Category.....Fair (38040 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (70-80 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........70 pct. * Chance of Thunder........50 pct. * Min Temperature..........55 to 65 degs. 24 hr Trend...........Down 1 to 4 degs. * Max Humidity.............88 to 98 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........South 10 to 15 mph. .COLUMBUS DAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Showers and chance of thunderstorms. * Chance of Precip.........80 pct. * Chance of Thunder........50 pct. * Max Temperature..........68 to 78 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............67 to 77 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Mixing height............3431 ft AGL. * Transport winds..........South 16 to 20 knots. * Ventilation Category.....Good (68620 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 53 to 63. Highs 73 to 83. Light winds. Minimum Humidity 42 to 52 pct. .WEDNESDAY...Mostly clear. Lows 51 to 61. Highs 74 to 84. Light winds. Minimum Humidity 34 to 44 pct. .THURSDAY...Mostly clear. Lows 46 to 56. Highs 68 to 78. Light winds. Minimum Humidity 27 to 37 pct. .FRIDAY...Mostly clear. Lows 42 to 52. Highs 68 to 78. .SATURDAY...Mostly clear. Lows 42 to 52. Highs 69 to 79. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-122215- 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- 215 AM MST Sun Oct 12 2025 .TODAY... * Sky/Weather..............Mostly cloudy (70-80 pct). Chance of showers and thunderstorms. * Chance of Precip.........70 pct. * Chance of Thunder........50 pct. * Max Temperature..........62 to 72 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............65 to 75 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds becoming southwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Mixing height............4094 ft AGL. * Transport winds..........Southwest 8 to 10 knots. * Ventilation Category.....Good (40940 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (75-85 pct). Chance of showers and thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........50 pct. * Min Temperature..........49 to 59 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............89 to 99 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southeast around 10 mph. * 10000 ft MSL Wind........South 15 to 20 mph. .COLUMBUS DAY... * Sky/Weather..............Cloudy (85-95 pct). Showers and chance of thunderstorms. * Chance of Precip.........80 pct. * Chance of Thunder........50 pct. * Max Temperature..........57 to 67 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............77 to 87 pct. 24 hr Trend...........Up 11 to 15 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........South 20 to 25 mph. * Mixing height............2756 ft AGL. * Transport winds..........South 16 to 17 knots. * Ventilation Category.....Good (46852 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows 47 to 57. Highs 62 to 72. South wind around 15 mph. Minimum Humidity 53 to 63 pct. .WEDNESDAY...Mostly clear. Lows 47 to 57. Highs 64 to 74. South wind around 15 mph. Minimum Humidity 40 to 50 pct. .THURSDAY...Mostly clear. Lows 39 to 49. Highs 59 to 69. Light winds. Minimum Humidity 24 to 34 pct. .FRIDAY...Mostly clear. Lows 34 to 44. Highs 59 to 69. .SATURDAY...Mostly clear. Lows 35 to 45. Highs 61 to 71. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-122215- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 215 AM MST Sun Oct 12 2025 .TODAY... * Sky/Weather..............Mostly cloudy (75-85 pct). Showers and chance of thunderstorms. * Chance of Precip.........80 pct. * Chance of Thunder........50 pct. * Max Temperature..........60 to 70 degs. 24 hr Trend...........Down 5 to 9 degs. * Min Humidity.............71 to 81 pct. 24 hr Trend...........Up 20 to 24 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph. * 10000 ft MSL Wind........West around 20 mph becoming southwest around 10 mph in the afternoon. * Mixing height............3328 ft AGL. * Transport winds..........Southwest 8 to 11 knots. * Ventilation Category.....Fair (31616 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (70-80 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........70 pct. * Chance of Thunder........50 pct. * Min Temperature..........51 to 61 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............90 to 100 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........South 10 to 15 mph. .COLUMBUS DAY... * Sky/Weather..............Mostly cloudy (75-85 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........80 pct. * Chance of Thunder........50 pct. * Max Temperature..........58 to 68 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............72 to 82 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Mixing height............3538 ft AGL. * Transport winds..........South 17 to 21 knots. * Ventilation Category.....Good (67222 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Partly cloudy. Lows 48 to 58. Highs 64 to 74. South wind around 15 mph. Minimum Humidity 48 to 58 pct. .WEDNESDAY...Mostly clear. Lows 46 to 56. Highs 65 to 75. Light winds. Minimum Humidity 40 to 50 pct. .THURSDAY...Mostly clear. Lows 41 to 51. Highs 59 to 69. Light winds. Minimum Humidity 34 to 44 pct. .FRIDAY...Mostly clear. Lows 39 to 49. Highs 59 to 69. .SATURDAY...Mostly clear. Lows 39 to 49. Highs 60 to 70. 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