Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
522
FNUS55 KTWC 180915
FWFTWC
Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
215 AM MST Tue Nov 18 2025
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20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY
TERRAIN DRIVEN WINDS
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.DISCUSSION...A storm system will begin to impact Southeast
Arizona this afternoon/evening across central and western Pima
county, then the rest of Southeast Arizona Wednesday into
Thursday. This system will bring numerous showers with a slight
chance of thunderstorms, snowfall to the mountains above 7000
feet, well below normal temperatures and breezy south to southwest
winds. Minimum RH values will be well above critical levels over
the next week, with values generally 35-45 percent in the valleys
and 65-75+ percent in the mountains.
AZZ150-190000-
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 Tue Nov 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (50-60 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........64 to 74 degs.
24 hr Trend...........Down 1 deg.
* Min Humidity.............45 to 55 pct.
24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..South 10 to 20 mph.
* 10000 ft MSL Wind........South 35 to 40 mph.
* Mixing height............5958 ft AGL.
* Transport winds..........South 22 to 24 knots.
* Ventilation Category.....Excellent (142992 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (55-65 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........47 to 57 degs.
24 hr Trend...........Down 1 to 4 degs.
* Max Humidity.............85 to 95 pct.
24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........South 35 to 40 mph.
.WEDNESDAY...
* Sky/Weather..............Mostly cloudy (55-65 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........58 to 68 degs.
24 hr Trend...........Down 3 to 6 degs.
* Min Humidity.............53 to 63 pct.
24 hr Trend...........Up 9 to 13 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........South 35 to 40 mph.
* Mixing height............5774 ft AGL.
* Transport winds..........South 15 to 16 knots.
* Ventilation Category.....Very good (92384 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Partly cloudy. Chance of showers. Lows 42 to 52.
Highs 55 to 65. Light winds. Minimum Humidity 45 to 55 pct.
.FRIDAY...Partly cloudy. Slight chance of showers. Lows 39 to 49.
Highs 59 to 69. Light winds. Minimum Humidity 37 to 47 pct.
.SATURDAY...Partly cloudy. Chance of showers. Lows 41 to 51.
Highs 62 to 72. Light winds. Minimum Humidity 39 to 49 pct.
.SUNDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 41 to 51. Highs 59 to 69.
.MONDAY...Mostly clear. Lows 39 to 49. Highs 61 to 71.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
$$
AZZ151-190000-
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 Tue Nov 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (60-70 pct).
* Chance of Precip.........10 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........60 to 70 degs.
24 hr Trend...........Down 1 deg.
* Min Humidity.............45 to 55 pct.
24 hr Trend...........Up 3 to 7 pct.
* Wind (20 ft/10-min avg)..South 10 to 20 mph.
* 10000 ft MSL Wind........Southwest 30 to 35 mph.
* Mixing height............4725 ft AGL.
* Transport winds..........South 21 to 23 knots.
* Ventilation Category.....Excellent (108675 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (55-65 pct). Slight chance
of showers.
* Chance of Precip.........20 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........41 to 51 degs.
24 hr Trend...........Little change.
* Max Humidity.............86 to 96 pct.
24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..South 15 to 20 mph.
* 10000 ft MSL Wind........South 30 to 35 mph.
.WEDNESDAY...
* Sky/Weather..............Mostly cloudy (50-60 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........58 to 68 degs.
24 hr Trend...........Down 2 to 5 degs.
* Min Humidity.............50 to 60 pct.
24 hr Trend...........Up 3 to 7 pct.
* Wind (20 ft/10-min avg)..South 15 to 20 mph.
* 10000 ft MSL Wind........South 30 to 35 mph.
* Mixing height............4014 ft AGL.
* Transport winds..........South 20 to 24 knots.
* Ventilation Category.....Very good (96336 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 37 to 47. Highs 50 to 60. Southwest wind
around 15 mph. Minimum Humidity 50 to 60 pct.
.FRIDAY...Partly cloudy. Lows 31 to 41. Highs 56 to 66. Light
winds. Minimum Humidity 35 to 45 pct.
.SATURDAY...Partly cloudy. Chance of showers. Lows 35 to 45.
Highs 59 to 69. Light winds. Minimum Humidity 36 to 46 pct.
.SUNDAY...Mostly cloudy. Chance of showers. Lows 36 to 46. Highs
55 to 65.
.MONDAY...Partly cloudy. Slight chance of showers. Lows 33 to 43.
Highs 57 to 67.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
$$
AZZ152-190000-
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 Tue Nov 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (60-70 pct).
* Chance of Precip.........10 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........60 to 70 degs.
24 hr Trend...........Little change.
* Min Humidity.............43 to 53 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 25 to 30 mph.
* Mixing height............5743 ft AGL.
* Transport winds..........South 15 to 19 knots.
* Ventilation Category.....Excellent (109117 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (60-70 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........42 to 52 degs.
24 hr Trend...........Up 1 to 4 degs.
* Max Humidity.............85 to 95 pct.
24 hr Trend...........Up 9 to 13 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........South 25 to 30 mph.
.WEDNESDAY...
* Sky/Weather..............Mostly cloudy (60-70 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........50 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........59 to 69 degs.
24 hr Trend...........Down 1 to 4 degs.
* Min Humidity.............50 to 60 pct.
24 hr Trend...........Up 7 to 11 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........South 30 to 35 mph.
* Mixing height............4405 ft AGL.
* Transport winds..........South 19 to 24 knots.
* Ventilation Category.....Excellent (105720 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Mostly cloudy. Cooler. Chance of showers and slight
chance of thunderstorms. Lows 38 to 48. Highs 49 to 59. Southwest
wind around 15 mph. Minimum Humidity 51 to 61 pct.
.FRIDAY...Partly cloudy. Lows 30 to 40. Highs 53 to 63. Light
winds. Minimum Humidity 38 to 48 pct.
.SATURDAY...Partly cloudy. Slight chance of showers. Lows 33 to
43. Highs 58 to 68. Light winds. Minimum Humidity 34 to 44 pct.
.SUNDAY...Mostly cloudy. Chance of showers. Lows 35 to 45. Highs
55 to 65.
.MONDAY...Partly cloudy. Lows 32 to 42. Highs 55 to 65.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
$$
AZZ153-190000-
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 Tue Nov 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (60-70 pct). Slight chance
of showers and thunderstorms.
* Chance of Precip.........20 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........49 to 59 degs.
24 hr Trend...........Little change.
* Min Humidity.............52 to 62 pct.
24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........South 20 to 25 mph.
* Mixing height............5460 ft AGL.
* Transport winds..........South 17 to 18 knots.
* Ventilation Category.....Very good (98280 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (65-75 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........40 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........35 to 45 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............86 to 96 pct.
24 hr Trend...........Up 7 to 11 pct.
* Wind (20 ft/10-min avg)..Southeast around 10 mph.
* 10000 ft MSL Wind........South 25 to 30 mph.
.WEDNESDAY...
* Sky/Weather..............Mostly cloudy (70-80 pct). Showers
likely and slight chance of
thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........46 to 56 degs.
24 hr Trend...........Down 1 to 4 degs.
* Min Humidity.............68 to 78 pct.
24 hr Trend...........Up 14 to 18 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........South 25 to 30 mph.
* Mixing height............4882 ft AGL.
* Transport winds..........South 19 knots.
* Ventilation Category.....Very good (92758 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Showers with possible snow showers and thunderstorms.
Lows 32 to 42. Highs 38 to 48. Light winds. Minimum Humidity
70 to 80 pct.
.FRIDAY...Partly cloudy. Lows 24 to 34. Highs 43 to 53. Light
winds. Minimum Humidity 41 to 51 pct.
.SATURDAY...Partly cloudy. Slight chance of showers. Lows 28 to
38. Highs 49 to 59. Light winds. Minimum Humidity 36 to 46 pct.
.SUNDAY...Mostly cloudy. Chance of showers. Lows 31 to 41. Highs
46 to 56.
.MONDAY...Partly cloudy. Slight chance of showers. Lows 28 to 38.
Highs 48 to 58.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
$$
AZZ154-190000-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
215 AM MST Tue Nov 18 2025
.TODAY...
* Sky/Weather..............Mostly cloudy (65-75 pct).
* Chance of Precip.........10 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........51 to 61 degs.
24 hr Trend...........Down 1 deg.
* Min Humidity.............53 to 63 pct.
24 hr Trend...........Up 3 to 7 pct.
* Wind (20 ft/10-min avg)..South 10 to 20 mph.
* 10000 ft MSL Wind........Southwest 30 to 35 mph.
* Mixing height............5562 ft AGL.
* Transport winds..........South 19 to 22 knots.
* Ventilation Category.....Excellent (114021 knot-ft).
.TONIGHT...
* Sky/Weather..............Mostly cloudy (65-75 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........30 pct.
* Chance of Thunder........20 pct.
* Min Temperature..........38 to 48 degs.
24 hr Trend...........Little change.
* Max Humidity.............85 to 95 pct.
24 hr Trend...........Up 5 to 9 pct.
* Wind (20 ft/10-min avg)..South 10 to 20 mph.
* 10000 ft MSL Wind........South 30 to 35 mph.
.WEDNESDAY...
* Sky/Weather..............Mostly cloudy (55-65 pct). Chance of
showers and slight chance of
thunderstorms.
* Chance of Precip.........60 pct.
* Chance of Thunder........20 pct.
* Max Temperature..........49 to 59 degs.
24 hr Trend...........Down 1 to 4 degs.
* Min Humidity.............61 to 71 pct.
24 hr Trend...........Up 7 to 11 pct.
* Wind (20 ft/10-min avg)..South 15 to 20 mph.
* 10000 ft MSL Wind........South 35 to 40 mph.
* Mixing height............5621 ft AGL.
* Transport winds..........South 21 to 25 knots.
* Ventilation Category.....Excellent (129283 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.THURSDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 34 to 44. Highs 41 to 51. Southwest wind
around 15 mph. Minimum Humidity 62 to 72 pct.
.FRIDAY...Partly cloudy. Lows 29 to 39. Highs 46 to 56. Light
winds. Minimum Humidity 44 to 54 pct.
.SATURDAY...Partly cloudy. Chance of showers. Lows 33 to 43.
Highs 49 to 59. Light winds. Minimum Humidity 40 to 50 pct.
.SUNDAY...Mostly cloudy. Chance of showers. Lows 35 to 45. Highs
47 to 57.
.MONDAY...Partly cloudy. Slight chance of showers. Lows 31 to 41.
Highs 47 to 57.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
$$
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