091
FNUS55 KTWC 190903
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
203 AM MST WED NOV 19 2025
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
A STORM SYSTEM WILL BEGIN TO IMPACT SOUTHEAST
ARIZONA THIS MORNING ACROSS CENTRAL AND WESTERN PIMA COUNTY, THEN
THE REST OF SOUTHEAST ARIZONA THIS EVENING 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.
AZZ150-200000-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
203 AM MST WED NOV 19 2025
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 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 3 TO 6 DEGS.
* MIN HUMIDITY.............53 TO 63 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 35 TO 40 MPH.
* MIXING HEIGHT............5694 FT AGL.
* TRANSPORT WINDS..........SOUTH 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (79716 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). SHOWERS
LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........80 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............89 TO 99 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTH AROUND 30 MPH BECOMING SOUTHWEST
AROUND 20 MPH AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........55 TO 65 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............50 TO 60 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH.
* 10000 FT MSL WIND........WEST 20 TO 25 MPH.
* MIXING HEIGHT............4985 FT AGL.
* TRANSPORT WINDS..........WEST 12 KNOTS.
* VENTILATION CATEGORY.....GOOD (59820 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 40 TO 50. HIGHS
58 TO 68. LIGHT WINDS. MINIMUM HUMIDITY 43 TO 53 PCT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 41 TO 51.
HIGHS 58 TO 68. LIGHT WINDS. MINIMUM HUMIDITY 47 TO 57 PCT.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 41 TO 51.
HIGHS 59 TO 69. LIGHT WINDS. MINIMUM HUMIDITY 47 TO 57 PCT.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 63 TO 73.
TUESDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 66 TO 76.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-200000-
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-
203 AM MST WED NOV 19 2025
TODAY
* 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.
* MAX TEMPERATURE..........58 TO 68 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............51 TO 61 PCT.
24 HR TREND...........UP 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 30 TO 35 MPH.
* MIXING HEIGHT............5221 FT AGL.
* TRANSPORT WINDS..........SOUTH 17 TO 20 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (104420 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (70-80 PCT). SHOWERS
LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........70 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........37 TO 47 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............89 TO 99 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.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (70-80 PCT) THEN BECOMING
PARTLY CLOUDY (45-55 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........49 TO 59 DEGS.
24 HR TREND...........DOWN 5 TO 9 DEGS.
* MIN HUMIDITY.............56 TO 66 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 25 TO 30 MPH.
* MIXING HEIGHT............4645 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 15 KNOTS.
* VENTILATION CATEGORY.....GOOD (69675 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 32 TO 42.
HIGHS 56 TO 66. LIGHT WINDS. MINIMUM HUMIDITY 36 TO 46 PCT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 36 TO 46. HIGHS 56 TO 66. LIGHT WINDS.
MINIMUM HUMIDITY 41 TO 51 PCT.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS 35 TO 45. HIGHS
54 TO 64. LIGHT WINDS. MINIMUM HUMIDITY 50 TO 60 PCT.
MONDAY
MOSTLY CLEAR. LOWS 33 TO 43. HIGHS 59 TO 69.
TUESDAY
MOSTLY CLEAR. LOWS 34 TO 44. HIGHS 62 TO 72.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-200000-
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-
203 AM MST WED NOV 19 2025
TODAY
* 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.
* MAX TEMPERATURE..........59 TO 69 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............54 TO 64 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 25 TO 30 MPH.
* MIXING HEIGHT............4326 FT AGL.
* TRANSPORT WINDS..........SOUTH 17 TO 19 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (82194 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (75-85 PCT). SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS.
* CHANCE OF PRECIP.........80 PCT.
* CHANCE OF THUNDER........50 PCT.
* MIN TEMPERATURE..........38 TO 48 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............87 TO 97 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 30 TO 35 MPH.
THURSDAY
* 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 7 TO 11 DEGS.
* MIN HUMIDITY.............62 TO 72 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............3723 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 18 KNOTS.
* VENTILATION CATEGORY.....GOOD (67014 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
PARTLY CLOUDY. LOWS 31 TO 41. HIGHS 54 TO 64. LIGHT
WINDS. MINIMUM HUMIDITY 38 TO 48 PCT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 35 TO 45.
HIGHS 57 TO 67. LIGHT WINDS. MINIMUM HUMIDITY 38 TO 48 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 35 TO 45. HIGHS
53 TO 63. LIGHT WINDS. MINIMUM HUMIDITY 51 TO 61 PCT.
MONDAY
MOSTLY CLEAR. LOWS 32 TO 42. HIGHS 57 TO 67.
TUESDAY
MOSTLY CLEAR. LOWS 33 TO 43. HIGHS 59 TO 69.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-200000-
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-
203 AM MST WED NOV 19 2025
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (70-80 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........60 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........47 TO 57 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............69 TO 79 PCT.
24 HR TREND...........UP 13 TO 17 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 25 TO 30 MPH.
* MIXING HEIGHT............3911 FT AGL.
* TRANSPORT WINDS..........SOUTH 17 KNOTS.
* VENTILATION CATEGORY.....GOOD (66487 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (80-90 PCT). SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS.
* CHANCE OF PRECIP.........80 PCT.
* CHANCE OF THUNDER........50 PCT.
* MIN TEMPERATURE..........32 TO 42 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............89 TO 99 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 25 TO 30 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (70-80 PCT). CHANCE OF
SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS.
* CHANCE OF PRECIP.........80 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........39 TO 49 DEGS.
24 HR TREND...........DOWN 6 TO 10 DEGS.
* MIN HUMIDITY.............76 TO 86 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............3254 FT AGL.
* TRANSPORT WINDS..........SOUTH 14 KNOTS SHIFTING TO THE WEST 15
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (48810 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLOUDY. LOWS 25 TO 35. HIGHS 43 TO 53. LIGHT
WINDS. MINIMUM HUMIDITY 44 TO 54 PCT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 30 TO 40.
HIGHS 48 TO 58. LIGHT WINDS. MINIMUM HUMIDITY 41 TO 51 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 31 TO 41. HIGHS
43 TO 53. LIGHT WINDS. MINIMUM HUMIDITY 60 TO 70 PCT.
MONDAY
MOSTLY CLEAR. LOWS 28 TO 38. HIGHS 50 TO 60.
TUESDAY
MOSTLY CLEAR. LOWS 28 TO 38. HIGHS 52 TO 62.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-200000-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
203 AM MST WED NOV 19 2025
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........49 TO 59 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............61 TO 71 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 30 TO 35 MPH.
* MIXING HEIGHT............4693 FT AGL.
* TRANSPORT WINDS..........SOUTH 20 TO 21 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (96206 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (75-85 PCT). SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS.
* CHANCE OF PRECIP.........80 PCT.
* CHANCE OF THUNDER........50 PCT.
* MIN TEMPERATURE..........33 TO 43 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............87 TO 97 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 35 TO 40 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........40 TO 50 DEGS.
24 HR TREND...........DOWN 5 TO 9 DEGS.
* MIN HUMIDITY.............65 TO 75 PCT.
24 HR TREND...........UP 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............3920 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 18 TO 19 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (72520 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
PARTLY CLOUDY. LOWS 29 TO 39. HIGHS 46 TO 56. LIGHT
WINDS. MINIMUM HUMIDITY 45 TO 55 PCT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 34 TO 44. HIGHS 48 TO 58. LIGHT WINDS.
MINIMUM HUMIDITY 45 TO 55 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 33 TO 43. HIGHS
44 TO 54. LIGHT WINDS. MINIMUM HUMIDITY 61 TO 71 PCT.
MONDAY
MOSTLY CLEAR. LOWS 31 TO 41. HIGHS 49 TO 59.
TUESDAY
MOSTLY CLEAR. LOWS 32 TO 42. HIGHS 52 TO 62.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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